Electronics Forum: pass (Page 102 of 142)

Re: Solder FINES vs. Solder Balls

Electronics Forum | Wed Apr 14 17:39:20 EDT 1999 | Dave F

Can someone explain the difference between solder "fines" and solder balls? Is there an official specification where "fines" are defined? What is the spec for "fines"? I consider "fines" individual unmelted metal spheres that are found in s

Re: Suspect BGAs

Electronics Forum | Tue Mar 16 18:27:34 EST 1999 | Earl Moon

We are having a small number (~2%) of our boards pass our manufacturing diagnostics, fail once they reach the customer, fail when they get back to us and then start working again after handling them for a short time. We have eliminated a lot of it

Re: Transient Voltage Suppressors

Electronics Forum | Tue Mar 16 05:11:47 EST 1999 | Charles Stringer

AVX and a few other companies make these chip transient voltage suppressors (TVS) parts that are a real *PAIN* to use. According to AVX: "Due to the semiconducting nature of the doped Zinc Oxide (ZnO) ceramic material, SMT TransGuard

Re: Simultaneous Double Sided Reflow

Electronics Forum | Tue Dec 29 13:06:36 EST 1998 | Earl Moon

I have been working on this process for a couple of weeks and I know that there are a few other companies in Europe and Japan who are also playing. Is there any one who has been running this process in production ? Yes

Fair enough

Electronics Forum | Tue Dec 29 15:21:25 EST 1998 | Ryan Jennens

I have been working on this process for a couple of weeks and I know that there are a few other companies in Europe and Japan who are also playing. Is there any one who has been running this process in production ?

Re: Fair enough

Electronics Forum | Tue Dec 29 15:45:29 EST 1998 | Earl Moon

I have been working on this process for a couple of weeks and I know that there are a few other companies in Europe and Japan who are also playing. Is there any one who has been running this process in production ?

Re: Double sided reflow

Electronics Forum | Fri Feb 13 08:54:43 EST 1998 | justin medernach

Hi , I have not been able to find any good description on how to perform double sided reflow on PCBs.The best would of course be to avoid reflowing the bottom side again but in real life this is not possible. So when double sided reflow sol

adhesive on pads

Electronics Forum | Mon Apr 01 20:10:24 EST 2002 | davef

Oh. [Howabout if I smack you?] If ahma connectin� wif whut yer sayin�, you: * Don�t like the appearance of the glue slobberin� out from under the component even though there is no apparent glue on solderable surfaces. * Concerned about the hydrosco

SMEMA standards

Electronics Forum | Wed Sep 18 18:40:05 EDT 2002 | dougt

Here is how smema works: Machine A has a board to give to machine B. Machine A has an opto or a relay that will turn on or close when it is ready to pass this board to machine B. This is the "board available from previous" signal, telling machine B

Line release of post reflow AOI and AXI

Electronics Forum | Tue Sep 16 19:16:11 EDT 2008 | hegemon

Hello everyone! > > I'm a student of electrical > engineering currently working on a thesis for my > BSc degree. It will be about post reflow AOIs and > AXIs, and I'd kindly like to ask you for some > help with it. > > I would like to know if t


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