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Re: IR rework stations ....Anyone Tried or currently uses PDR

Jacqueline Coia

#9375

IR rework stations | 23 September, 1999

Hiya,

Could anyone please suggest recommended manufacturers of IR rework stations for the removal of various SMT comps.

Cheers

reply »

#9376

Re: IR rework stations | 23 September, 1999

| Hiya, | | Could anyone please suggest recommended manufacturers of | IR rework stations for the removal of various SMT comps. | | Cheers | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was melting and costs a lot of money without any possibility to adjust and repeat profiles for your various needs, just timecontrol. Did I miss some new improvements of this sector Wolfgang

reply »

Earl Moon

#9377

Re: IR rework stations | 23 September, 1999

| | Hiya, | | | | Could anyone please suggest recommended manufacturers of | | IR rework stations for the removal of various SMT comps. | | | | Cheers | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was melting and costs a lot of money without any possibility to adjust and repeat profiles for your various needs, just timecontrol. | Did I miss some new improvements of this sector | Wolfgang | | | No Wolfgang, you missed nothing, but for convection IR. I too go with hot air as the most effective (currently) repair methods and processes. Love that hot air stuff, not that board burning IR.

MoonMan

reply »

#9378

Re: IR rework stations | 23 September, 1999

| Hiya, | | Could anyone please suggest recommended manufacturers of | IR rework stations for the removal of various SMT comps. | | Cheers | Hey Jack: Let's not get lost. The issue is money versus process control. How much do you have versus how much do you need?

Big dogs

AirVac 203.874.2541 fax888.1145 Conceptronics 603.431.6262 fax3303 SRT 508.392.0633fax0638

Yappers

ERSA

Dogs

Advanced Techniques 215.364.5588fax1952 Manix 215.957.6565fax6599 OK 914.969.6800fax6650 Pace 301.490.9860 fax 604.604.8782 SEC 805.529.2293fax2193 Wenesco 800.233.4430fax312.973.5104

Ta

Dave F

reply »

Earl Moon

#9379

Re: IR rework stations | 23 September, 1999

| | Hiya, | | | | Could anyone please suggest recommended manufacturers of | | IR rework stations for the removal of various SMT comps. | | | | Cheers | | | Hey Jack: Let's not get lost. The issue is money versus process control. How much do you have versus how much do you need? | | Big dogs | | AirVac 203.874.2541 fax888.1145 | Conceptronics 603.431.6262 fax3303 | SRT 508.392.0633fax0638 | | Yappers | | ERSA | | Dogs | | Advanced Techniques 215.364.5588fax1952 | Manix 215.957.6565fax6599 | OK 914.969.6800fax6650 | Pace 301.490.9860 fax 604.604.8782 | SEC 805.529.2293fax2193 | Wenesco 800.233.4430fax312.973.5104 | | Ta | | Dave F | | For sure on the dogs. I'm a little partial to SRT because I have HAD to use them for the past two years. Their 2100 auto system is neat and the improved 1100 stuff with the new software is ok as well though still a little klunky mechanically.

Input from Air-Vac reinforces my liking their stuff as the new stuff has many improvements. Conceptronic, I didn't like as well two years ago, but maybe they've improved as well. If all were combined into one machine, life would be better?

Earl Moon

reply »

#9380

Re: IR rework stations | 23 September, 1999

| | | Hiya, | | | | | | Could anyone please suggest recommended manufacturers of | | | IR rework stations for the removal of various SMT comps. | | | | | | Cheers | | | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was melting and costs a lot of money without any possibility to adjust and repeat profiles for your various needs, just timecontrol. | | Did I miss some new improvements of this sector | | Wolfgang | | | | | | | No Wolfgang, you missed nothing, but for convection IR. I too go with hot air as the most effective (currently) repair methods and processes. Love that hot air stuff, not that board burning IR. | | MoonMan | I add my opinion to MoonMan's, hot air is the way to go. We have 3 big systems for BGA rework, 2 from AirVac, 1 from OK Industries. For most other SMT rework needs we use simple hot air systems. We have over a dozen of these smaller units on the floor, mostly Pace Thermo-Flo systems.

Jeff Ferry

reply »

Earl Moon

#9381

Re: IR rework stations | 23 September, 1999

| | | | Hiya, | | | | | | | | Could anyone please suggest recommended manufacturers of | | | | IR rework stations for the removal of various SMT comps. | | | | | | | | Cheers | | | | | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was melting and costs a lot of money without any possibility to adjust and repeat profiles for your various needs, just timecontrol. | | | Did I miss some new improvements of this sector | | | Wolfgang | | | | | | | | | | | No Wolfgang, you missed nothing, but for convection IR. I too go with hot air as the most effective (currently) repair methods and processes. Love that hot air stuff, not that board burning IR. | | | | MoonMan | | | I add my opinion to MoonMan's, hot air is the way to go. We have 3 big systems for BGA rework, 2 from AirVac, 1 from OK Industries. For most other SMT rework needs we use simple hot air systems. We have over a dozen of these smaller units on the floor, mostly Pace Thermo-Flo systems. | | Jeff Ferry | Hey Jerry,

You ought to see my latest invention. Actually, it's mostly big Dave F's idea. Maybe he'll post some pictures I sent him when I finished working on it. Boy, is it hot air.

MoonMan

reply »

#9382

Re: IR rework stations | 23 September, 1999

| | | | | Hiya, | | | | | | | | | | Could anyone please suggest recommended manufacturers of | | | | | IR rework stations for the removal of various SMT comps. | | | | | | | | | | Cheers | | | | | | | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was melting and costs a lot of money without any possibility to adjust and repeat profiles for your various needs, just timecontrol. | | | | Did I miss some new improvements of this sector | | | | Wolfgang | | | | | | | | | | | | | | | No Wolfgang, you missed nothing, but for convection IR. I too go with hot air as the most effective (currently) repair methods and processes. Love that hot air stuff, not that board burning IR. | | | | | | MoonMan | | | | | I add my opinion to MoonMan's, hot air is the way to go. We have 3 big systems for BGA rework, 2 from AirVac, 1 from OK Industries. For most other SMT rework needs we use simple hot air systems. We have over a dozen of these smaller units on the floor, mostly Pace Thermo-Flo systems. | | | | Jeff Ferry | | | Hey Jerry, | | You ought to see my latest invention. Actually, it's mostly big Dave F's idea. Maybe he'll post some pictures I sent him when I finished working on it. Boy, is it hot air. | | MoonMan | MoonMan, or is Mr. MoonMan more appropriate? We're always looking for new rework techniques and tools. Send them along, as chairman of the IPC Repairability Committee I'll also submit them for inclusion in the repair and rework guides if you like. Use my e-mail account if you prefer. jferry@circuitnet.com.

Thanks

Jeff Ferry

reply »

Earl Moon

#9383

Re: IR rework stations | 23 September, 1999

| | | | | | Hiya, | | | | | | | | | | | | Could anyone please suggest recommended manufacturers of | | | | | | IR rework stations for the removal of various SMT comps. | | | | | | | | | | | | Cheers | | | | | | | | | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was melting and costs a lot of money without any possibility to adjust and repeat profiles for your various needs, just timecontrol. | | | | | Did I miss some new improvements of this sector | | | | | Wolfgang | | | | | | | | | | | | | | | | | | | No Wolfgang, you missed nothing, but for convection IR. I too go with hot air as the most effective (currently) repair methods and processes. Love that hot air stuff, not that board burning IR. | | | | | | | | MoonMan | | | | | | | I add my opinion to MoonMan's, hot air is the way to go. We have 3 big systems for BGA rework, 2 from AirVac, 1 from OK Industries. For most other SMT rework needs we use simple hot air systems. We have over a dozen of these smaller units on the floor, mostly Pace Thermo-Flo systems. | | | | | | Jeff Ferry | | | | | Hey Jerry, | | | | You ought to see my latest invention. Actually, it's mostly big Dave F's idea. Maybe he'll post some pictures I sent him when I finished working on it. Boy, is it hot air. | | | | MoonMan | | | MoonMan, or is Mr. MoonMan more appropriate? We're always looking for new rework techniques and tools. Send them along, as chairman of the IPC Repairability Committee I'll also submit them for inclusion in the repair and rework guides if you like. Use my e-mail account if you prefer. jferry@circuitnet.com. | | Thanks | | Jeff Ferry | Mr. or sir - not terms I'm with which I'm too familiar. MoonMan works well according to my fine feathered following, but thanks.

Yes Jeff, I will complete crude preliminary work on MY invention soon and won't share anything with Dave if he doesn't come up with the pictures soon. It is very basic but I have big plans for it, maybe even having someone invest in the idea so I can retrieve my so far invested 89 dollars (American of course).

Thanks,

Earl Moon

reply »

#9384

Re: IR rework stations ....Anyone Tried or currently uses PDR | 23 September, 1999

| Hiya, | | Could anyone please suggest recommended manufacturers of | IR rework stations for the removal of various SMT comps. | | Cheers | I have 2 customers who went from hot air system to a PDR and they love it. The system will give them a nice temp curve and has REDUCED their board damage. Any other PDR users please comment I am considering buying one.

reply »

Earl Moon

#9385

Re: IR rework stations ....Anyone Tried or currently uses PDR | 23 September, 1999

| | Hiya, | | | | Could anyone please suggest recommended manufacturers of | | IR rework stations for the removal of various SMT comps. | | | | Cheers | | | I have 2 customers who went from hot air system to a PDR and they love it. The system will give them a nice temp curve and has REDUCED their board damage. | Any other PDR users please comment I am considering buying one. | | I'll do anything almost once. What's a PDR?

Earl Moon

reply »

#9386

Re: IR rework stations | 23 September, 1999

snip

| | | | | I add my opinion to MoonMan's, hot air is the way to go. We have 3 big systems for BGA rework, 2 from AirVac, 1 from OK Industries. For most other SMT rework needs we use simple hot air systems. We have over a dozen of these smaller units on the floor, mostly Pace Thermo-Flo systems. | | | | Jeff Ferry | | | Hey Jerry, | | You ought to see my latest invention. Actually, it's mostly big Dave F's idea. Maybe he'll post some pictures I sent him when I finished working on it. Boy, is it hot air. | | MoonMan | I was 'sposed to save those pictures? I didn't even know what was in that document!!! Darn!!! In truth, my word processor (Word For Windows 95) couldn't even read the sukka. So, I forwarded it to a friend at a company with money to burn who'll help me view the thang. Sorry Earl, I blew our chance for fame and riches. Aint that an old story?? Hey Earl, should we patent the thing before we post pictures for these vultures? Ta. Dave F

reply »

Jacqueline Coia

#9387

Re: IR rework stations | 28 September, 1999

| | | | | | | Hiya, | | | | | | | | | | | | | | Could anyone please suggest recommended manufacturers of | | | | | | | IR rework stations for the removal of various SMT comps. | | | | | | | | | | | | | | Cheers | | | | | | | | | | | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was melting and costs a lot of money without any possibility to adjust and repeat profiles for your various needs, just timecontrol. | | | | | | Did I miss some new improvements of this sector | | | | | | Wolfgang | | | | | | | | | | | | | | | | | | | | | | | No Wolfgang, you missed nothing, but for convection IR. I too go with hot air as the most effective (currently) repair methods and processes. Love that hot air stuff, not that board burning IR. | | | | | | | | | | MoonMan | | | | | | | | | I add my opinion to MoonMan's, hot air is the way to go. We have 3 big systems for BGA rework, 2 from AirVac, 1 from OK Industries. For most other SMT rework needs we use simple hot air systems. We have over a dozen of these smaller units on the floor, mostly Pace Thermo-Flo systems. | | | | | | | | Jeff Ferry | | | | | | | Hey Jerry, | | | | | | You ought to see my latest invention. Actually, it's mostly big Dave F's idea. Maybe he'll post some pictures I sent him when I finished working on it. Boy, is it hot air. | | | | | | MoonMan | | | | | MoonMan, or is Mr. MoonMan more appropriate? We're always looking for new rework techniques and tools. Send them along, as chairman of the IPC Repairability Committee I'll also submit them for inclusion in the repair and rework guides if you like. Use my e-mail account if you prefer. jferry@circuitnet.com. | | | | Thanks | | | | Jeff Ferry | | | Mr. or sir - not terms I'm with which I'm too familiar. MoonMan works well according to my fine feathered following, but thanks. | | Yes Jeff, I will complete crude preliminary work on MY invention soon and won't share anything with Dave if he doesn't come up with the pictures soon. It is very basic but I have big plans for it, maybe even having someone invest in the idea so I can retrieve my so far invested 89 dollars (American of course). | | Thanks, | | Earl Moon |

Hey Everyone,

To satisfy all your curiosities to why I was enquiring about IR reworks systems as opposed to hot air is mainly due to the fact that our boards have not been designed with DFM in mind , therefore also ignoring rework needs. Due to close proximities of adjacent components previous trialed hot air systems with various nozzles types were heating up neighbouring chip comps. and moving them out of position. To answer the question of which category this type of system falls into would unfortunately have to be between 'yappers' & 'dogs' with systems such as 'Pace' and 'Ersa' already been trialed. Any further suggestions or recommendations would be appreciated. Cheers, Jack

reply »

#9388

Re: IR rework stations | 28 September, 1999

| | | | | | | | Hiya, | | | | | | | | | | | | | | | | Could anyone please suggest recommended manufacturers of | | | | | | | | IR rework stations for the removal of various SMT comps. | | | | | | | | | | | | | | | | Cheers | | | | | | | | | | | | | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was melting and costs a lot of money without any possibility to adjust and repeat profiles for your various needs, just timecontrol. | | | | | | | Did I miss some new improvements of this sector | | | | | | | Wolfgang | | | | | | | | | | | | | | | | | | | | | | | | | | | No Wolfgang, you missed nothing, but for convection IR. I too go with hot air as the most effective (currently) repair methods and processes. Love that hot air stuff, not that board burning IR. | | | | | | | | | | | | MoonMan | | | | | | | | | | | I add my opinion to MoonMan's, hot air is the way to go. We have 3 big systems for BGA rework, 2 from AirVac, 1 from OK Industries. For most other SMT rework needs we use simple hot air systems. We have over a dozen of these smaller units on the floor, mostly Pace Thermo-Flo systems. | | | | | | | | | | Jeff Ferry | | | | | | | | | Hey Jerry, | | | | | | | | You ought to see my latest invention. Actually, it's mostly big Dave F's idea. Maybe he'll post some pictures I sent him when I finished working on it. Boy, is it hot air. | | | | | | | | MoonMan | | | | | | | MoonMan, or is Mr. MoonMan more appropriate? We're always looking for new rework techniques and tools. Send them along, as chairman of the IPC Repairability Committee I'll also submit them for inclusion in the repair and rework guides if you like. Use my e-mail account if you prefer. jferry@circuitnet.com. | | | | | | Thanks | | | | | | Jeff Ferry | | | | | Mr. or sir - not terms I'm with which I'm too familiar. MoonMan works well according to my fine feathered following, but thanks. | | | | Yes Jeff, I will complete crude preliminary work on MY invention soon and won't share anything with Dave if he doesn't come up with the pictures soon. It is very basic but I have big plans for it, maybe even having someone invest in the idea so I can retrieve my so far invested 89 dollars (American of course). | | | | Thanks, | | | | Earl Moon | | | | Hey Everyone, | | To satisfy all your curiosities to why I was enquiring about IR reworks systems as opposed to hot air is mainly due to the fact that our boards have not been designed with DFM in mind , therefore also ignoring rework needs. Due to close proximities of adjacent components previous trialed hot air systems with various nozzles types were heating up neighbouring chip comps. and moving them out of position. To answer the question of which category this type of system falls into would unfortunately have to be between 'yappers' & 'dogs' with systems such as 'Pace' and 'Ersa' already been trialed. | Any further suggestions or recommendations would be appreciated. | Cheers, Jack | Alright, for the airflow systems I try to get as low airspeed as possible and despite the fact that I can�t prevent neighboring parts to be reflowed again they stay in place. i think the same would happen with IR. It�s just a matter of adjustment and profiling with equipment where airflow can be adjusted. I do work with a German brand and don�t know if it�s available overseas but there might be systems with the same feature on the market.

Greetings, Wolfgang

reply »

Jacqueline Coia

#9389

Re: IR rework stations | 28 September, 1999

| | | | | | | | | Hiya, | | | | | | | | | | | | | | | | | | Could anyone please suggest recommended manufacturers of | | | | | | | | | IR rework stations for the removal of various SMT comps. | | | | | | | | | | | | | | | | | | Cheers | | | | | | | | | | | | | | | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was melting and costs a lot of money without any possibility to adjust and repeat profiles for your various needs, just timecontrol. | | | | | | | | Did I miss some new improvements of this sector | | | | | | | | Wolfgang | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No Wolfgang, you missed nothing, but for convection IR. I too go with hot air as the most effective (currently) repair methods and processes. Love that hot air stuff, not that board burning IR. | | | | | | | | | | | | | | MoonMan | | | | | | | | | | | | | I add my opinion to MoonMan's, hot air is the way to go. We have 3 big systems for BGA rework, 2 from AirVac, 1 from OK Industries. For most other SMT rework needs we use simple hot air systems. We have over a dozen of these smaller units on the floor, mostly Pace Thermo-Flo systems. | | | | | | | | | | | | Jeff Ferry | | | | | | | | | | | Hey Jerry, | | | | | | | | | | You ought to see my latest invention. Actually, it's mostly big Dave F's idea. Maybe he'll post some pictures I sent him when I finished working on it. Boy, is it hot air. | | | | | | | | | | MoonMan | | | | | | | | | MoonMan, or is Mr. MoonMan more appropriate? We're always looking for new rework techniques and tools. Send them along, as chairman of the IPC Repairability Committee I'll also submit them for inclusion in the repair and rework guides if you like. Use my e-mail account if you prefer. jferry@circuitnet.com. | | | | | | | | Thanks | | | | | | | | Jeff Ferry | | | | | | | Mr. or sir - not terms I'm with which I'm too familiar. MoonMan works well according to my fine feathered following, but thanks. | | | | | | Yes Jeff, I will complete crude preliminary work on MY invention soon and won't share anything with Dave if he doesn't come up with the pictures soon. It is very basic but I have big plans for it, maybe even having someone invest in the idea so I can retrieve my so far invested 89 dollars (American of course). | | | | | | Thanks, | | | | | | Earl Moon | | | | | | | Hey Everyone, | | | | To satisfy all your curiosities to why I was enquiring about IR reworks systems as opposed to hot air is mainly due to the fact that our boards have not been designed with DFM in mind , therefore also ignoring rework needs. Due to close proximities of adjacent components previous trialed hot air systems with various nozzles types were heating up neighbouring chip comps. and moving them out of position. To answer the question of which category this type of system falls into would unfortunately have to be between 'yappers' & 'dogs' with systems such as 'Pace' and 'Ersa' already been trialed. | | Any further suggestions or recommendations would be appreciated. | | Cheers, Jack | | | Alright, for the airflow systems I try to get as low airspeed as possible and despite the fact that I can�t prevent neighboring parts to be reflowed again they stay in place. i think the same would happen with IR. | It�s just a matter of adjustment and profiling with equipment where airflow can be adjusted. | I do work with a German brand and don�t know if it�s available overseas but there might be systems with the same feature on the market. | | Greetings, Wolfgang |

Is there any other recommendatons on particular hot air systems with air speed control? Wolfgang, What is the German brand that you use?

Thanks, Jack

reply »

#9390

Re: IR rework stations | 28 September, 1999

| | | | | | | | | | Hiya, | | | | | | | | | | | | | | | | | | | | Could anyone please suggest recommended manufacturers of | | | | | | | | | | IR rework stations for the removal of various SMT comps. | | | | | | | | | | | | | | | | | | | | Cheers | | | | | | | | | | | | | | | | | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was melting and costs a lot of money without any possibility to adjust and repeat profiles for your various needs, just timecontrol. | | | | | | | | | Did I miss some new improvements of this sector | | | | | | | | | Wolfgang | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No Wolfgang, you missed nothing, but for convection IR. I too go with hot air as the most effective (currently) repair methods and processes. Love that hot air stuff, not that board burning IR. | | | | | | | | | | | | | | | | MoonMan | | | | | | | | | | | | | | | I add my opinion to MoonMan's, hot air is the way to go. We have 3 big systems for BGA rework, 2 from AirVac, 1 from OK Industries. For most other SMT rework needs we use simple hot air systems. We have over a dozen of these smaller units on the floor, mostly Pace Thermo-Flo systems. | | | | | | | | | | | | | | Jeff Ferry | | | | | | | | | | | | | Hey Jerry, | | | | | | | | | | | | You ought to see my latest invention. Actually, it's mostly big Dave F's idea. Maybe he'll post some pictures I sent him when I finished working on it. Boy, is it hot air. | | | | | | | | | | | | MoonMan | | | | | | | | | | | MoonMan, or is Mr. MoonMan more appropriate? We're always looking for new rework techniques and tools. Send them along, as chairman of the IPC Repairability Committee I'll also submit them for inclusion in the repair and rework guides if you like. Use my e-mail account if you prefer. jferry@circuitnet.com. | | | | | | | | | | Thanks | | | | | | | | | | Jeff Ferry | | | | | | | | | Mr. or sir - not terms I'm with which I'm too familiar. MoonMan works well according to my fine feathered following, but thanks. | | | | | | | | Yes Jeff, I will complete crude preliminary work on MY invention soon and won't share anything with Dave if he doesn't come up with the pictures soon. It is very basic but I have big plans for it, maybe even having someone invest in the idea so I can retrieve my so far invested 89 dollars (American of course). | | | | | | | | Thanks, | | | | | | | | Earl Moon | | | | | | | | | | Hey Everyone, | | | | | | To satisfy all your curiosities to why I was enquiring about IR reworks systems as opposed to hot air is mainly due to the fact that our boards have not been designed with DFM in mind , therefore also ignoring rework needs. Due to close proximities of adjacent components previous trialed hot air systems with various nozzles types were heating up neighbouring chip comps. and moving them out of position. To answer the question of which category this type of system falls into would unfortunately have to be between 'yappers' & 'dogs' with systems such as 'Pace' and 'Ersa' already been trialed. | | | Any further suggestions or recommendations would be appreciated. | | | Cheers, Jack | | | | | Alright, for the airflow systems I try to get as low airspeed as possible and despite the fact that I can�t prevent neighboring parts to be reflowed again they stay in place. i think the same would happen with IR. | | It�s just a matter of adjustment and profiling with equipment where airflow can be adjusted. | | I do work with a German brand and don�t know if it�s available overseas but there might be systems with the same feature on the market. | | | | Greetings, Wolfgang | | | | | Is there any other recommendatons on particular hot air systems with air speed control? Wolfgang, What is the German brand that you use? | | Thanks, Jack | | Hi Jack, I use Finetech equipment (http://www.finetech.de/)and know about Martin but don�t know if they have a page or are sold overseas.

Wolfgang

reply »

Earl Moon

#9391

Re: IR rework stations | 28 September, 1999

| | | | | | | | | | | Hiya, | | | | | | | | | | | | | | | | | | | | | | Could anyone please suggest recommended manufacturers of | | | | | | | | | | | IR rework stations for the removal of various SMT comps. | | | | | | | | | | | | | | | | | | | | | | Cheers | | | | | | | | | | | | | | | | | | | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was melting and costs a lot of money without any possibility to adjust and repeat profiles for your various needs, just timecontrol. | | | | | | | | | | Did I miss some new improvements of this sector | | | | | | | | | | Wolfgang | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No Wolfgang, you missed nothing, but for convection IR. I too go with hot air as the most effective (currently) repair methods and processes. Love that hot air stuff, not that board burning IR. | | | | | | | | | | | | | | | | | | MoonMan | | | | | | | | | | | | | | | | | I add my opinion to MoonMan's, hot air is the way to go. We have 3 big systems for BGA rework, 2 from AirVac, 1 from OK Industries. For most other SMT rework needs we use simple hot air systems. We have over a dozen of these smaller units on the floor, mostly Pace Thermo-Flo systems. | | | | | | | | | | | | | | | | Jeff Ferry | | | | | | | | | | | | | | | Hey Jerry, | | | | | | | | | | | | | | You ought to see my latest invention. Actually, it's mostly big Dave F's idea. Maybe he'll post some pictures I sent him when I finished working on it. Boy, is it hot air. | | | | | | | | | | | | | | MoonMan | | | | | | | | | | | | | MoonMan, or is Mr. MoonMan more appropriate? We're always looking for new rework techniques and tools. Send them along, as chairman of the IPC Repairability Committee I'll also submit them for inclusion in the repair and rework guides if you like. Use my e-mail account if you prefer. jferry@circuitnet.com. | | | | | | | | | | | | Thanks | | | | | | | | | | | | Jeff Ferry | | | | | | | | | | | Mr. or sir - not terms I'm with which I'm too familiar. MoonMan works well according to my fine feathered following, but thanks. | | | | | | | | | | Yes Jeff, I will complete crude preliminary work on MY invention soon and won't share anything with Dave if he doesn't come up with the pictures soon. It is very basic but I have big plans for it, maybe even having someone invest in the idea so I can retrieve my so far invested 89 dollars (American of course). | | | | | | | | | | Thanks, | | | | | | | | | | Earl Moon | | | | | | | | | | | | | Hey Everyone, | | | | | | | | To satisfy all your curiosities to why I was enquiring about IR reworks systems as opposed to hot air is mainly due to the fact that our boards have not been designed with DFM in mind , therefore also ignoring rework needs. Due to close proximities of adjacent components previous trialed hot air systems with various nozzles types were heating up neighbouring chip comps. and moving them out of position. To answer the question of which category this type of system falls into would unfortunately have to be between 'yappers' & 'dogs' with systems such as 'Pace' and 'Ersa' already been trialed. | | | | Any further suggestions or recommendations would be appreciated. | | | | Cheers, Jack | | | | | | | Alright, for the airflow systems I try to get as low airspeed as possible and despite the fact that I can�t prevent neighboring parts to be reflowed again they stay in place. i think the same would happen with IR. | | | It�s just a matter of adjustment and profiling with equipment where airflow can be adjusted. | | | I do work with a German brand and don�t know if it�s available overseas but there might be systems with the same feature on the market. | | | | | | Greetings, Wolfgang | | | | | | | | | Is there any other recommendatons on particular hot air systems with air speed control? Wolfgang, What is the German brand that you use? | | | | Thanks, Jack | | | | | Hi Jack, | I use Finetech equipment (http://www.finetech.de/)and know about Martin but don�t know if they have a page or are sold overseas. | | Wolfgang | I think I missed something here. Concerning adjacent parts, They need to be at least .200" away from the part to be reworked. If that clearance is not available, parts must be removed so the nozzle will fit flush to the board. Once done, most hot air nozzles vent air up and away from adjacent parts so no reflow is imparted.

Earl Moon

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#9392

Re: IR rework stations ....Anyone Tried or currently uses PDR | 28 September, 1999

| | | Hiya, | | | | | | Could anyone please suggest recommended manufacturers of | | | IR rework stations for the removal of various SMT comps. | | | | | | Cheers | | | | | I have 2 customers who went from hot air system to a PDR and they love it. The system will give them a nice temp curve and has REDUCED their board damage. | | Any other PDR users please comment I am considering buying one. | | | | | I'll do anything almost once. What's a PDR? | | Earl Moon | PDR is a Brand Name. I'm not sure where it is made but it is a mid price (32K) IR rework machine. PC controlled with a aimable IR sensor to monitor part/board temp. Stores profiles for the IR on the PC and it has a prism alignment system that allows you to look at the part and board superimposed , it appears you are looking through the part onto the board, for alignment. I have had a short demo. Not too bad for the price but some shortcomings with the alignment system.

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Plasma Prior to Conformal Coating