Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Help on Qualification of Printer and Pick Place

Samson

#13696

Help on Qualification of Printer and Pick Place | 26 October, 1998

I'm very new to the SMT process but I'm tasked to qualify a MPM Printer and a Panasert PnP m/c. The product consists of 6-10 different parts of a total of around 70. Please advice on the parameters for each m/c which I should focus on for optmization.

Thank you. Your reply will be of a great help.

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Dave F

#13697

Re: Help on Qualification of Printer and Pick Place | 26 October, 1998

| I'm very new to the SMT process but I'm tasked to qualify a MPM Printer and a Panasert PnP m/c. The product consists of 6-10 different parts of a total of around 70. Please advice on the parameters for each m/c which I should focus on for optmization. | | Thank you. Your reply will be of a great help. | Samson: You should focus on optimizing the performace of the machine that the bottleneck in your process flow (from when you start until when you end). Tailor the performance of all non-bootleneck machines to match the output of the bottle neck. Dave F

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Jimmy strain

#13698

Re: Help on Qualification of Printer and Pick Place | 26 October, 1998

| I'm very new to the SMT process but I'm tasked to qualify a MPM Printer and a Panasert PnP m/c. The product consists of 6-10 different parts of a total of around 70. Please advice on the parameters for each m/c which I should focus on for optmization. | | Thank you. Your reply will be of a great help. | Samson, What Kind of Panasert is it ? The card you describe has a total of 70 placements, is the Pana placing them all? If it is and depending on the type of part, I would try to get the cycle time of the MPM down to keep up with the pick and place.

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Stefan W.

#13699

Re: Help on Qualification of Printer and Pick Place | 27 October, 1998

Hi Samson ! In order to give you more detailed information I would like to know what your component range is and how many boards you supposed to do. Panasonic and MPM are a good choice, however, Panasonic has not many P&P machines on the U.S. market, but is very strong in the Chipshooter market. If you start fresh in the SMT process, you'll possibly not start with 20.000 comp. per hour production and I would recommend a system which does all your components in a cycle time ( 50 % less than advertised )for your specific needs. Supposed you do the 70 components in 100 seconds, you may want to add 5 seconds for conveyor and 4 seconds for board recognition. In this case you have already almost 10 % non productive time. If you have an impact on the board manufacturing process, I would recommend at least 4 boards in a panel, which cuts down on the board handling time. If you do not more than 25 mil pitch on your QFP components, you may not require more than pin registration for your screenprinter and any low end screenprinter will do the job for you. Remember, you have at least 100 sec. time to print one board. This forum is very knowledgable, but you have to be more specific in your questions.

| I'm very new to the SMT process but I'm tasked to qualify a MPM Printer and a Panasert PnP m/c. The product consists of 6-10 different parts of a total of around 70. Please advice on the parameters for each m/c which I should focus on for optmization. | | Thank you. Your reply will be of a great help. |

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