Full Site - : leaching (Page 18 of 19)

Re: Detecting lifted leads on QFPs

Electronics Forum | Fri May 28 16:30:39 EDT 1999 | JohnW

| Yes l know this problem keeps cropping up on the forum but l've missed some of the follow-ups. | | Our problem is that the lifting only occurs on 3% of production so actually detecting an improvement is difficult. We're actually having to inspect

Re: white residue

Electronics Forum | Wed Feb 10 12:52:21 EST 1999 | Dick Casagrande

|I'm getting in a little late on this but my 2 cents is: We have been using no-clean flux for a few years now but up till last month were still cleaning (the white residue) our boards (all thru hole). Finally did some investigation and found the flux

Re: DI Water Cleaning / Need To Control Resitivity More? / Which water?

Electronics Forum | Wed Sep 02 07:16:20 EDT 1998 | Earl Moon

| | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, carbon bed, mixed resin

Wadda Ya Mean Wadders Different?

Electronics Forum | Wed Sep 02 16:05:20 EDT 1998 | Dave F

| | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, carbon bed, mixed r

Time for the green flag to come down?

Electronics Forum | Fri Sep 22 16:21:31 EDT 2006 | patrickbruneel

Figure 1. Human Toxicity Potential, Life-cycle Comparison Tin/lead solder paste is the top formula. SAC is second from the bottom.3 RoHS Report Excludes Comparisons By George A. Riley, contributing editor A European Union (EU) Commission for Envir

Re: solder mask

Electronics Forum | Sun Aug 15 05:45:15 EDT 1999 | Brian

Boca, Dave Sorry, but I cannot let this go. I'll go along with you that, at the time that the Montreal Protocol was initially signed (September 1987), there was no scientific proof that CFCs etc. were causing ozone depletion. There was, however, ve

Re: Wadda Ya Mean Wadders Different?

Electronics Forum | Wed Sep 02 16:50:49 EDT 1998 | Earl Moon

| | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, carbon bed, mix

Re: Wadda Ya Mean Wadders Different?

Electronics Forum | Thu Sep 03 12:12:41 EDT 1998 | Dave F

| | | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, carbon bed,


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