Electronics Forum: relate (Page 1 of 193)

blackened/black solder

Electronics Forum | Wed Mar 28 14:06:46 EDT 2007 | realchunks

Hi A, Your subject is black solder, but you decrribe the solder as dull? Dull solder joints could be dross related, or even flux related. Are there any other related defects? But "dull metal sufaces" makes me thing this board was subjected to so

SAC solder balls reflow with Sn/Pb paste - Voids Issue

Electronics Forum | Wed Oct 04 17:15:23 EDT 2006 | russ

that question I think I will punt it on over to some of the experts here. I really do not the "why". voids for me have always been related to the escape (lack of) of the "stuff" that is in the paste. I have seen diff pastes perform differently rel

What is TCP

Electronics Forum | Mon Oct 11 23:58:00 EDT 1999 | Patrick Wong

Do anyone know what is TCP. I was told it is tape carrier package but have found nothing relating to this. Could someone please explain the whole tecnology and point to site relating to this so that i can understand more on this.

Solder related defects

Electronics Forum | Fri Apr 03 05:25:31 EST 1998 | Donnacha

Hi all, Could someone suggest a web site that contains good representations and pictures of SMT solder related defects?? I need to compare these with some pictures I'm using for a project presentation this week. Thanks, D.

SPC, PPM and DPMO

Electronics Forum | Thu May 22 22:26:01 EDT 2003 | ChrisX

Hi Guys, Sorry for asking stupid questions. Are SPC, PPM and DPMO related to each other? Do they affect each other then? What is their inter relations? Can someone explain to me what are their purposes? thanks

Lead Free Stencil Design

Electronics Forum | Thu Jul 14 16:08:07 EDT 2005 | russ

Stencil thickness is related to PCB design and is not related to paste type. If you release with a 8 mil stencil then use an 8 mil stencil. Of course there are pastes that release bteer than other and what not but use area and aspect ratios to dete

Tented vias on ENIG boards

Electronics Forum | Tue Jan 31 15:52:39 EST 2006 | russ

I have never related Solder mask layout to Black Pad. I don't see how they could be related but.......

The truth about lead-free and environment

Electronics Forum | Sat Mar 25 07:25:34 EST 2006 | davef

Russ Who benefits? * Tin producers [ITRI] and sales-types * Equipment producers and sales-types * Friends, relatives, red-haired children, and sycophants of Euroland legislators working in the regulation and compliance activities relating to leadfre

Ok gurus got a question?

Electronics Forum | Thu Nov 30 11:32:07 EST 2006 | fastek

I have the feeling FishingFool's situation or dilemma is not a PCB Assembly related application......or at least it's not a component placement related application with auto board loading and fiducial recognition. That would be too easy to figure out

Doubts PCB Route

Electronics Forum | Sun Aug 04 08:10:23 EDT 2013 | sarason

At this low frequency there is little need to worry about frequency related effects in your PCB related layout. regards sarason

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