Electronics Forum: non-wetting issue (Page 6 of 6)

Hidden Pillow Phenomenon

Electronics Forum | Tue Nov 14 21:27:26 EST 2006 | davef

"Hidden pillow" seems to be a a variant of "pillow effect" or "head in pillow". Pillow effect is an open, with non-wetting between the lead and the solder on the pad. Here the lead sags into the solder without any bonding or wetting. Poor wetting c

Solder flow Ni/Au

Electronics Forum | Thu Mar 08 08:03:16 EST 2007 | ck_the_flip

ENig can vary in quality, but I've never seen an ENiG board that's been downright unsolderable. At a CM where I worked, I had to prove a QE wrong. He was flippin' out (*no offense*) about black pad, something commonly seen on ENig boards, so what I

Re: SRT 1000, WHAT ELSE?

Electronics Forum | Wed Mar 10 21:56:40 EST 1999 | Dean

| For Dean and the rest of you interested, | | I have reconciled many of my thermal issues with this machine and its peculiarities. The bottom side heater seems adequate, at 750 watts (not going to spend 10 grand extra for 500 more watts no matter w

Re: SRT 1000, WHAT ELSE?

Electronics Forum | Thu Mar 11 16:44:34 EST 1999 | Earl Moon

| | For Dean and the rest of you interested, | | | | I have reconciled many of my thermal issues with this machine and its peculiarities. The bottom side heater seems adequate, at 750 watts (not going to spend 10 grand extra for 500 more watts no ma

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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