Electronics Forum | Thu Jan 29 11:30:56 EST 2009 | rgduval
As others have said, you'll have some difficulties getting good reflow on pb-free out of a 3-zone oven. We did it with a 4-zone for awhile, but only had really good success on low thermal density boards. That said, you should definitely check your
Electronics Forum | Mon Feb 23 05:37:23 EST 2009 | emmanueldavid
Necoleta, PWB Blistering/De-lamination may not be due for Titanium finished threads / holders which is typically being used to draw high Shelf Life of Pallets and even flow across Auto Wave Soldering rails. There is also nothing to suspect on Liquid
Electronics Forum | Mon Mar 16 07:40:06 EDT 2009 | jdengler
Hi Pete, For the price the ProSmt+ is good. I do not have much experience with F4G but do with MCS. It very easy to use with a few exceptions. The PD editor on ProSMT+ is buggy. If you copy a PD edit it and save it under a new name it's lnked so
Electronics Forum | Tue Mar 17 07:32:10 EDT 2009 | davef
Solder ball acceptance: IPC-A-610, 6.5.3.1 & 12.4.10. Solder balls: 5 ball system: * No more than 5 balls per square inch (100mm2) allowed * Solder balls can not be greater than 5 mil (0.005in) (100um) * Solder balls cannot be less than 5 mil (100um)
Electronics Forum | Tue Mar 17 07:35:37 EDT 2009 | nagesh
We have the IC placer Fuji-IP3 machine.Can this machine be able to place MicroBGA / BGA with good vision system.My card has almost 8 BGA with 4 MicroBGA?Still now i had placed 1 or 2 BGA(Placement by body centering).In this machine the Y- table keeps
Electronics Forum | Thu Mar 19 12:22:54 EDT 2009 | mhjohnso
While investigating a routing study for a new bga device, I found the vendor used round 20 mil pads on 0402 decoupling caps.This allows fitting the caps between break out vias on their 1mm pitch BGA. Round pad gives about 8 mils diagonally from pin t
Electronics Forum | Sat Mar 28 12:04:24 EDT 2009 | davef
Bound books with concise information on SMT implementation are: * A compilation of "Step By Step" articles from SMT Magazine: http://www.booknews.co.uk/Books/Book4490.html * Setting Up In-House Surface Mount Technology [Books], Schoch, K.F., Jr., El
Electronics Forum | Sat Apr 25 02:46:18 EDT 2009 | smellew
FYI SME offers a replacement Tape leaf detection system which covers the whole range of FUJI CP4-CP7 machines.its also very reasonably priced. It doesn't use Fibre Sensors or mirrors. it only has 1 adjustment which is height via Eccentric screw. even
Electronics Forum | Thu May 07 19:29:40 EDT 2009 | kareal
Hi Davef, Do you means it is natural for tin diffusion to copper trace during SMT process? but I could not detect tin in UHAST T=0 unit, and the tin diffusion was found only in copper trace of C4 cage. Two question: 1) Could you tell me which pr
Electronics Forum | Thu May 07 08:12:06 EDT 2009 | milroy
Hi I recommend you to check the exhaust sensor, the ERSA EWS500F is sensing the exhaust before it activates the fluxer. If the exhaust is not working then machine does not start to avoid the sprayed flux emit to the work environment. There is a sens
