Electronics Manufacturing Forum Printed circuit board assembly, surface mount technology and electronics manufacturing forum discussions from Fri, 31 Jul 2015 07:23:36 GMT Adaptable PCB support systems for use in pick and place machines? What adaptable PCB support system do people recommend for use in pick and place machines when processing double sided assemblies? - Grid-lok, vacunest, red-e-set? Fri, 31 Jul 2015 02:11:41 GMT Can we check polarity and upside downs on MyData100? In our production line we use the pick and placer My100 by Mycronics. We get a lot of feedback from quality department about IC's being placed upside down, wrong polarity. (Wrong polarity usually already delivered to us, or IC's placed in the sticks by hand.) Does the My100 have a functionality how components will be placed. Like a build in inspection tool maybe? Thu, 30 Jul 2015 17:31:41 GMT Which AOI would you recommend? I am thinking of having a new AOI for my SMT line. I'm considering Mirtec or Koh Young, but I have heard some issues with them. I was in SMT Hybrid Packaging in Germany and Parmi's AOI looked impressive. Does anyone know Parmi? or would you recommend any system? Thu, 30 Jul 2015 16:38:40 GMT Asymtek c 740 Hy guys, someone know Asymtek C740? I want to overaul a part o his. thanks Thu, 30 Jul 2015 14:47:52 GMT X Tek Xray inspection HMXST-160 error We are having X-Ray Machine X TEK HMXST-160 The machine is working fine with respect to Interlocking , X-ray on , but not able to zoom and move the Joystick positions ,it is stand only in one position while starting the application we are getting following detailed Error Massage 1)Could Not Run IXS application on NEXTMOVE card 2) Can Not perform Homing Operation , the manipulator is busy Pls help to resolve this issue Thu, 30 Jul 2015 10:59:05 GMT K$S 7500 error code I have a K&S 7500 dicing saw with an error code. It reads (F005 system environment is not correct-reinstall system). There is no more support for this machine and I would like to find some help with my problem Thu, 30 Jul 2015 08:36:29 GMT samsung cp40 help for problem with fiducial camera and fixing camera Goodmornin I have a problem with the fixing and move cameras, i don't see the image of the cameras on the screen. On the monitor i see the cross and letter, but i can no see on the black box the camera images. I know the problem is on the ADDA Board. Can you help? Thu, 30 Jul 2015 07:25:09 GMT MPM AP25 operation manual Thu, 30 Jul 2015 03:29:06 GMT What adaptable PCB support system do people recommend for use in pick and place machines? - Grid-lok, vacunest, red-e-set? Wed, 29 Jul 2015 17:32:24 GMT pick and place adhesive dots Is there anyone that makes a pick and place glue dot for surface mount chip components (B stage epoxy dot in a carrier tape)? Thanks, Rich Wed, 29 Jul 2015 12:58:35 GMT Flux Fluxing applciation standards Hi to all, I'm new to this. My question is is there any standard that tells how much flux you should add to a PWB? My boss tells me they used to do process control by weighing the PWB before and after so guestimate the amount of flux. but Is ther an actual standard?? Thank you Wed, 29 Jul 2015 12:52:15 GMT Is anyone conformal coating flex circuits? I have a customer that is requesting their flex circuit be conformally coated. Is this something that is done? Which coating would stand up to the stresses of flexing? Wouldn't that put stress on the components? Thanks! Shannon Wed, 29 Jul 2015 11:28:54 GMT K&S dicing saw Wed, 29 Jul 2015 08:34:04 GMT Impedance/Length Matching Tracks in PCB Layout Dear All, Kindly guide me which criteria should follow to do length and impedance matching in PCB layout? Right now I have a design with different type of flip flops, Do I have to length match of data pins of Flip Flops or just rout them as normal signals? In addition to my above query at which frequency range do we need to length match in layout? Thanks Wed, 29 Jul 2015 02:20:58 GMT printed circuit board material Tue, 28 Jul 2015 04:16:47 GMT UNIX-414R Hi everyone! Somebody has a distribution software for the UNIX-414R (412R, 413R) series? Tue, 28 Jul 2015 00:57:14 GMT Juki 3020 Looking for any info/opinions on anyone using Juki 3020's in a production setting. Mon, 27 Jul 2015 15:25:40 GMT A 12L(4+4+4) PCB job Mon, 27 Jul 2015 06:03:16 GMT Help with resources for SMT assembly I am looking for information regarding setting up an SMT assembly line. I have recently purchased a stencil paste printer, pick and place, and reflow oven. The main information I need is the paste selection and best finish material on the PCBs. I will be wanting lead free, no clean solder and from what I have learned so far I need a paste with gelling agent and one that does not compose before 217 degrees C. But, when I browse for available paste, I cannot identify these attributes. Also, what PCB finish would work best with this paste and reflow process? Should I select tin, silver, gold immersion etc? Thanks in advance for you help Regards David Sun, 26 Jul 2015 07:09:25 GMT ROHS compliance for contract manufacturer Does anyone have a suggestion for a good reference guide to implementing RoHS compliancy for Contract Manufacturing? I'm looking for info as to what documentation the CM needs to supply their customer and other various hoops that we might need to jump through. Fri, 24 Jul 2015 17:08:04 GMT water wash small but mechanically sensitive PCBA I am struggling with a water wash process for a very small (1"x1") PCB. It has components that are very esily damaged by contact. I'm stuck with wash. I know, I know, but no-clean isn't an option. We put the board in s compartmentalized wash basked but it still gets thrown around a bit. Any off-the-shelf options out there for securing a small board in wash? Fri, 24 Jul 2015 17:02:37 GMT BFU730LX defects We use component BFU730LX and we have one problem. After reflow transistor base or collector lands are not soldered. Maybe someone have similar problems with this component? We tryed to change stencil pads (smaller , bigger) but problem is the same. Emitter land is always soldered. Fri, 24 Jul 2015 16:42:03 GMT Straddle-mount connectors Hi guys. Does anyone know how to assemble straddle-mount connectors in mass production? I mean connectors like this: <a class=roll href="" target="_blank"> </a>GWE32DHRN-T941 I know how to assemble it manually, but I haven't idea how to assemble 10000 pcs. Thx to all for advices. Fri, 24 Jul 2015 16:37:47 GMT ENIG PCB date code 2012 Hi All Some our customer has a new order but has been stopped long time ago (2012) which ENIG PCB in our raw material stock that are date code xx12 (still be vacuum sealed with silica gel) so,Will there be any risk or not? Help me please. Thank you Fri, 24 Jul 2015 16:33:45 GMT Tyco MEP-6T which tools? i am looking to buy a Press-fit machine and was wondering if the foolowing tools work with the Tyco MEP-6T press is a good choice? molex: insertion:62202-9940 extraction:62203-0150 molex: insertion:62202-9780 extraction: 62202-9790 Thanks Fri, 24 Jul 2015 14:50:43 GMT