Full Site - : tray pitch 10x10 qfp (Page 5 of 7)

Re: BENT LEADS ON FINE PITCH

Electronics Forum | Fri Apr 09 15:41:11 EDT 1999 | Matt Stackhouse

| DOES ANY ONE KNOW HOW I CAN STRAIGHTEN | BENT PINS ON A FINE PITCH QFP WITH OUT DAMAGING | THE CHIP. AT $300 A CHIP I CAN'T SCRAP THEM. Here is a neat trick if you have the equipment. If your company does any feature measurement of mechanical de

QFP Removal

Electronics Forum | Mon Feb 16 15:47:54 EST 2004 | Jim

I have about 200 PCB's from which a 20mil pitch QFP must be removed, cleaned and re-used (will place them back in trays for the P&P machine to place the parts on new boards). My intitial concern is: how can we remove the parts in an efficient manner?

My advice is DON'T

Electronics Forum | Mon Jul 20 12:58:51 EDT 1998 | Dew Lolly

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 c

Re: My advice is DON'T

Electronics Forum | Mon Jul 20 15:11:34 EDT 1998 | Scott McKee

| 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

Re: Placing 160 Pin QFP on Fuji HP machine?

Electronics Forum | Wed Feb 25 23:19:41 EST 1998 | Steve Gregory

Eric, You've got a Fuji FHP? WOW! It still runs even! That was the first fine pitch machine I ever worked with, along with the FEP's and CP-2's. Unless Fuji has changed the machine software, I don't know what he may be talking about. They

Typical SMT Machine changeover times?

Electronics Forum | Wed Mar 29 03:40:06 EST 2006 | Frank

The Juki 2060 can have both front and rear trolleys and you do not loose any feeder locations. My question was why can't the Assembleon put trolley on the rear? I recently visited a friend at a company that used a lot of Assembleon and compared run

Hitachy QFP 256 leads problems

Electronics Forum | Tue Mar 20 00:02:00 EDT 2007 | Darby

Some causes of skewing. If you have exhausted all mechanical problems for that head. Pickup data from tray is incorrect. If you aren't picking up in the exact centre it is possible that the component is being skewed after vision adjustment i.e. cent

New Pick and Place Operation

Electronics Forum | Wed Jun 02 16:33:08 EDT 2004 | davem

Fuji is the best, but there are other alternatives besides Quad. If you really want to look at Fuji, take a peek at their XP142E series. With "Vision processing on the fly" and a "Mini Turret Head" with 12 placement nozzles it should fit your needs n

Re: handling components for rework

Electronics Forum | Mon Jul 26 18:03:45 EDT 1999 | John Thorup

| We only do rework with SMT components or a small amount of SMT work. We are having a hard time keeping the components safe throughout the handling process of removing one or two components, and issuing them to an operator for processing or inspect

Re: Hey Guys, you gotta check this out!

Electronics Forum | Mon Apr 26 11:37:48 EDT 1999 | Chrys Shea

| | Hey Guys! | | | | Look what I get to try and do this week! I got handed a cardboard box on Friday afternoon with the parts and 20 of these little jewels! That's both sides of the board by the way... | | | | Whoever laid this out, I'd like to go


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