Electronics Forum | Wed Jun 25 06:43:06 EDT 2003 | cyber_wolf
We are currently producing a board for a customer that has about 400 gold fingers that get wire bonded after the assy. leaves our facility. We have tried many different approaches to ensure that we are not getting solder on the gold fingers. Nothing
Electronics Forum | Thu Aug 21 15:10:59 EDT 2003 | paulm
Such balls (=/- 0.004)size variance can occur in a single part. If I have a ball in a part that could be (according to vendor specs) 0.008 larger than another ball the only way I can insure that the smaller ball makes contact with the paste is to hav
Electronics Forum | Tue Aug 26 19:54:59 EDT 2003 | bman
I've got a crazy idea that I think might just work, so I need you guys to shoot it down. We will have an in-line wash with a 24" wide belt in our new facility. I'm thinking we might be able to run our 22" screens through this wash instead of using
Electronics Forum | Tue Jul 27 11:16:40 EDT 2004 | carterhoward
Hello , I agree with the solder ball theory, we used to have an issue with high humidity and it produced the results you�re describing. Our solution to this since adding dehumidifiers was too costly was to increase the quantity of intake ducts for t
Electronics Forum | Thu Aug 12 14:55:08 EDT 2004 | johnw
Hi guys I havnt been on for a while so its nice to be back been working in europe mostly Fuji CP6 skewing rnets Marcels comment is the closest rnets are a problem as said before the main areas are 1 A good assmbley shape is a must with 30% defaul
Electronics Forum | Wed Sep 15 11:05:16 EDT 2004 | rlackey
Hi John, It depends on what equipment and resources you have at your disposal - if you have an antique wave with crap adjustment & hand sprayed flux, no debridging/air knife system on a tightly packed board with a multitude of fine pitch connectors
Electronics Forum | Fri Dec 10 11:22:50 EST 2004 | rlackey
Hi, We paid �60K for a 6622C from Vitronics Soltec, no idea about US costs since the dollar went down the swanny. Great machine though. Not all lead free ovens come with Nitrogen capability - it depends whether you specify it or not, and it can ad
Electronics Forum | Thu May 05 14:58:20 EDT 2005 | russ
Looked at it on the web, I believe that it will place those 600 parts in less than 2 hours! And you guys were thinking that it is slow? Ken, not only will it solder those parts with its blazing speed but did you know that you don't even need a sten
Electronics Forum | Thu Jun 02 11:22:13 EDT 2005 | Rob
Hi Kyle, Although I agree in principle with what you say, we were getting exellent solder joint inspection on reasonably high density boards (approx 1000 components from 0402 to finepitch QFP's). However obviously they wouldn't touch any form of BG
Electronics Forum | Sat Jun 04 08:51:26 EDT 2005 | pjc
IPC-7525 is a document that provides guidlines for the design and fabrication of stencils for solder paste and surface-mount adhesive. This is the first time this important information has been collected and published in an industry consensus documen
