Electronics Forum | Thu Jun 19 21:39:31 EDT 2008 | mika
Hi, we used to have a RoHS package with uBGA 380 Solder ball's 0.8 mm pitch approx 15x15 mm, bump size is 0.4mm on a 0.33mm pad. Suddenly we need to use another vendor for various reasons. However, the new bump size is 0.45mm according to specs and t
Electronics Forum | Thu Jun 26 20:54:08 EDT 2008 | davef
As pointed-out above, the downside of telling your supplier how to perform a process can create problems: * It sets the cost of the operation ... I did what you told me to do * Materials selected may be incompatible ... I did what you told me to do *
Electronics Forum | Wed Jul 02 09:22:20 EDT 2008 | dmunson
Thanks Real Chunks. We currently have an RPS opus selective solder machine that we plan on keeping. It is configured as a 3-nozzle (!) one-pump (!!) point selective solder machine w/ nitrogen preheat. Custom wet nozzles. We use lead free SN100C sold
Electronics Forum | Mon Jun 30 08:32:16 EDT 2008 | grics
Earlier this month our organization began researching how turn our facility into a paperless manufacturing floor. The scope ended up widening into a much larger project. During our research we found 2 software companies so far that are pretty impre
Electronics Forum | Tue Jul 01 12:35:18 EDT 2008 | amcross
Please accept my apologies for being offtopic. I have tried posting on the career center, and our job even appeared at the top of the most recent smtnet email newsletter. Still, we received essentially zero response. I'm hoping maybe a post here mi
Electronics Forum | Thu Jul 03 09:30:49 EDT 2008 | wavemasterlarry
Listen I noticed that my names being mentioned in a thread thats related to wave soldering. Im glad that I can attract the attention of a recruiter on a nation wide forum. As some of you know I boycotted this site due to censorship from the meditator
Electronics Forum | Thu Jul 03 10:24:54 EDT 2008 | grayman
Hello WaveMaster Larry, I think you are very well knowledgeable in wave machine or process. However, I think the reason why your former company won�t listen to you is because you also never listen to your people. I think you overlooked the saying �N
Electronics Forum | Fri Jul 11 10:32:10 EDT 2008 | JH pbf
Got to agree with CK and Patrick. A very brief career history: 1992 Engineering Apprenticeship 1994 Job as a Temp, placing components in a local electronics firm 1996 Made perminant Process Tech through experience gained 1998 A year selling solder a
Electronics Forum | Mon Jul 14 13:45:17 EDT 2008 | ck_the_flip
Patrick... Contact LENGTH as in inches, mm, or cm...not time..is decreased with a slower belt speed. The slower the speed, the less contact LENGTH with the wave per unit time ...whereas at a faster speed, your leads are contacting more solder, th
Electronics Forum | Mon Jul 14 16:11:58 EDT 2008 | ck_the_flip
Pat, Try to run a glass plate (yeah I've used these before too), keep your wave pump speed the same, and slow down your conveyor speed. You will find the actual contact between molten solder and the 0.5" grids to be LESS vs. a faster conveyor speed
.gif)
