Electronics Forum: problem (Page 513 of 1309)

Re: Storage life of Gold Finish Boards

Electronics Forum | Mon Jan 18 10:01:16 EST 1999 | John W

| | | | Folk's, | | | | | | | | I'm looking for information of how long you cna store a gold finish PCB before building it. I know there are problems with the gold disappearing into the underlying nickle over time / temperature etc but exactly how l

Re: Gold boards OK with SMT? What About Gold Thickness?

Electronics Forum | Mon Aug 10 21:52:34 EDT 1998 | Dave F

| | | Is there any problem using SMT on gold boards? 15 years ago we were told not to use gold boards, but I can't remember why. Judging by the other postings it now appears to be common. Only problem I see is that the nickel should be plated, not

Bad Buisness

Electronics Forum | Thu Apr 18 16:43:41 EDT 2002 | Sam

Tech: "good afternoon ABC co. how can I help you?" Eng: your machine broken. Tech: okay, what is the problem you are having ? Eng: it no work, my boss is mad at me, no production. Tech: yes, uh, what exactly is the problem ? Eng: I don't know, night

SMT COMPONENTS

Electronics Forum | Tue Jul 23 23:22:25 EDT 2002 | kenbliss

Quite an assortment of opinions and problems, I appreciate everyones input. Based on all that I created a process below that seems to me should work well to reduce these problems. There seems to be plenty of blame to go around for everyone in the f

Differentdefect on circuit board surface

Electronics Forum | Fri Jul 10 07:34:00 EDT 2020 | elijah

From the poor bonding strength of the board, the surface quality problems of the board are divided into: 1. The cleanliness of the board surface; 2. The problem of micro graphite (or surface energy) on the surface. PCB circuit board proofing Youke bo

Re: Radial capacitors have water gain

Electronics Forum | Mon May 10 13:35:14 EDT 1999 | Chrys Shea

| We have been having an ongoing problems with radial electrolytic capacitors (thru hole)for some time. | 1. When we wash them in our inline cleaners the sleeving shrinks up from the PCB leaving the 'can' exposed. Some designs have traces on the

Re: Radial capacitors have water gain

Electronics Forum | Mon May 10 14:44:15 EDT 1999 | C.K.

| | We have been having an ongoing problems with radial electrolytic capacitors (thru hole)for some time. | | 1. When we wash them in our inline cleaners the sleeving shrinks up from the PCB leaving the 'can' exposed. Some designs have traces on

Commercial Postings

Electronics Forum | Wed Sep 26 21:31:05 EDT 2001 | davef

We agree in substance and what we are discussing is: degree and perception. There have been many useful, well thoughtout postings on SMTnet by sales types. And the intent of this discussion is to promote more of those contributions, because many sa

Re: 0603 Components

Electronics Forum | Mon Sep 11 04:10:46 EDT 2000 | Jim Arnold

I spent 25 years operating my own hybrid shop working with surface mount components, soldering materials and procedures. Dealing all the while with it's associated surprises and problems such as yours. Now-a-days I get paid to investigate and attemp

Dark Pad / Gold Embrittlement?

Electronics Forum | Wed Jul 26 10:06:19 EDT 2000 | Doug Philbrick

I have read many of the past threads on both topics and I still am not convinced I know the answer to the soldering problem we are encountering. I am hopping someone can help. I have a dense SMT board we are building and have been building for some


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