Full Site - : poor hasl (Page 9 of 10)

Re: bare board problem

Electronics Forum | Fri Jun 18 10:46:10 EDT 1999 | Scott Cook

| | | first of all what is the technical term for the small amount of solder on a plated pad. we are getting poor screen printing gasketing on a 20 mil qfp due to this solder not being even or too high in spots and not covering the length of the pads

Re: Immersion White Tin Process for PCB Finish

Electronics Forum | Wed Jan 05 11:11:09 EST 2000 | Dave F

Hey Pat: My responses are: 1. Does anyone have experience with the shelf life on immersion white tin? If so, how long can the boards be stored without adversely affecting solderability. I've heard one year. No, we don�t, because we turn boards fa

Re: bare board problem

Electronics Forum | Fri Jun 18 11:37:10 EDT 1999 | Earl Moon

| | | | first of all what is the technical term for the small amount of solder on a plated pad. we are getting poor screen printing gasketing on a 20 mil qfp due to this solder not being even or too high in spots and not covering the length of the pa

Re: BS

Electronics Forum | Thu Aug 24 15:12:29 EDT 2000 | Earl Moon

I don't entertain the forum like JAXSUN. I never have played games but for some humorous insights. I, when participating, never complained until management provided only more incentive to advertisers than forum members. That said, the following is a

Re: Wavesoldering Organic Copper Coated Vias

Electronics Forum | Thu Jun 25 14:45:55 EDT 1998 | Chrys

| I have a single-sided board with test vias that pass through the board. The test vias are pasted and reflowed with the SMT components on the top side. When the boards are wavesoldered, the solder coverage on the vias is spotty. Some will sold

Re: Solder Resist Solder balls

Electronics Forum | Tue Dec 22 12:32:16 EST 1998 | Earl Moon

| Folk's, | I'm in need of some help / direction. I'm working on my thesis for a masters based on looking at the effect's of the solder resist promoting / reducing the amount of solder ball's during wave. I'm looking at thing's like colour, texture,

OSP Handling

Electronics Forum | Fri Jun 27 10:27:59 EDT 2003 | davef

Since you�re asking the question about proper handling of OSP board, there may still be time to talk you out of using that material. * Cleaning of mis-printed board could cause non-wetting problems. This tends to remove a fraction of OSP coating. 0.3


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