SMT, lead form and trim equipment

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Hello friends.... Can someone please point me in the righ... - Jul 20, 1998 by

QFP's are best left the professionals. There are MANY sub... - Jul 20, 1998 by

We regularly form QFP's and FP's (pitches to 20 mil) and h... - Jul 20, 1998 by

| QFP's are best left the professionals. There are MANY... - Jul 20, 1998 by

Sherry

#14958

SMT, lead form and trim equipment | 20 July, 1998

Hello friends.... Can someone please point me in the right direction... I will be needing the capability of forming/trimming QFP's on a very low volumn scale in house. So far I've only been able to find one manufacturer and that is Fancort Industries. Any pro's and con's on them would also be appreciated. Thanks!

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Dew Lolly

#14960

My advice is DON'T | 20 July, 1998

QFP's are best left the professionals. There are MANY subtle issues with fine pitch lead forming such as critical tool design issues ability to check critical dimensions etc. Unless you want to replow this grown in hopes of getting a promotion or completing you thesis I would suggest using a vendor who has done this before. We have had really good luck with Corfin, Inc. 603-893-9900. You should also consider how the parts will be presented to the placement process (matrix trays, tape, etc.).

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Chris Fontaine

#14959

Re: SMT, lead form and trim equipment | 20 July, 1998

We regularly form QFP's and FP's (pitches to 20 mil) and have experience with both Knight and Fancort equipment, however most of our experience has been with Knight. Knight Tool has been consistently good, and I've had some sour experiences with Fancort, however Fancort has improved considerably since then. If you have any more questions about Knight or Fancort contact them at: Knight Tool 978-373-1807 ask for Bill Einhorn Fancort Ind. 800-554-9773 ask for Chuck Bowman As for me, I'm: Chris Fontaine Manufacturing Engineer Sanders, a Lockheed Martin Co.

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Scott McKee

#14961

Re: My advice is DON'T | 20 July, 1998

| QFP's are best left the professionals. There are MANY subtle issues with fine pitch lead forming such as critical tool design issues ability to check critical dimensions etc. Unless you want to replow this grown in hopes of getting a promotion or completing you thesis I would suggest using a vendor who has done this before. We have had really good luck with Corfin, Inc. 603-893-9900. You should also consider how the parts will be presented to the placement process (matrix trays, tape, etc.). I agree 100%. Corfin is the place but you may need to buy the lead forming die from Fancore. If the leads have not been tinned, then they'll need tinned after forming, something Corfin can do (and quite well). If you chose Corfin, you may need special trays -- another task to consider... Good luck, Scott

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