Electronics Forum: contains (Page 58 of 81)

Re: Surface Mount assemblies IPC Standards

Electronics Forum | Thu Jul 01 16:43:52 EDT 1999 | Dave F

Could somebody tell me what means Leaching, ie: "Leaching of terminal end face exposing the ceramic"? Roberto: Leaching, according to the SMTnet Library of Terms: Leaching. Dissolution of a metal coating into liquid solder.

Re: Repair of SMT boards

Electronics Forum | Sat Jun 05 07:23:20 EDT 1999 | Dave F

Where I can find some informations about repairing of SMT boards? Thanks Marcos Marcos: Ya know, repair is that "dirty little" part of the business that all try to ignore, don't want to fund properly, and creats more angst than propa

HELP! Plating issue on chassis

Electronics Forum | Fri May 21 12:24:21 EDT 1999 | KA Stillings

I normally handle the soldering issues for this facility but a question was asked of me -- What the H@## is this stuff and what is causing it? Was wondering of I could get some input from any Guru on plating issues. Need info ASAP!!!!!!!!!!!!!!!!!!!

Re: Intrusive reflow..from the bottom..????

Electronics Forum | Fri May 21 04:03:46 EDT 1999 | Joe Manzur

John, Were doing an intrusive reflow process on a single sided board, where all the conventional parts are on the "top" of the board. Due to the nature of the board, and the kind of componets on it, we couldn't wave solder it. To keep it contai

Re: 2% silver solder paste

Electronics Forum | Mon Apr 19 02:45:31 EDT 1999 | Brian Sloth Bentzen

We process both tin/lead plated boards and gold plated boards in our surface mount group. I have used Sn62/Pb36/Ag2 solder paste on all gold plated boards to help prevent gold scavaging. To reduce the amount of different solder pastes we have t

Re: BENT LEADS ON FINE PITCH

Electronics Forum | Tue Apr 13 04:54:53 EDT 1999 | Charles Stringer

DOES ANY ONE KNOW HOW I CAN STRAIGHTEN BENT PINS ON A FINE PITCH QFP WITH OUT DAMAGING THE CHIP. AT $300 A CHIP I CAN'T SCRAP THEM. I use tweezers and picks. I place the component down on it's backside (legs up) and manually twe

Re: BENT LEADS ON FINE PITCH

Electronics Forum | Tue Apr 13 12:36:57 EDT 1999 | Scott McKee

DOES ANY ONE KNOW HOW I CAN STRAIGHTEN BENT PINS ON A FINE PITCH QFP WITH OUT DAMAGING THE CHIP. AT $300 A CHIP I CAN'T SCRAP THEM. I use tweezers and picks. I place the component down on it's backside (legs up) and ma

Re: The SMT Beginning

Electronics Forum | Wed Apr 07 11:53:59 EDT 1999 | Dave F

Could somebody send me some information about the SMT Beginning? I mean, when, where, why, SMT starts. Thank you, Roberto. Roberto: There�s lots of reasons for getting into SMT. Some of which follow: 1 Manufacturing engineers thi

Re: The SMT Beginning

Electronics Forum | Wed Apr 07 12:54:13 EDT 1999 | Roberto Cardozo

Could somebody send me some information about the SMT Beginning? I mean, when, where, why, SMT starts. Thank you, Roberto. Roberto: There�s lots of reasons for getting into SMT. Some of which follow: 1 Manufac

Re: AR vs. UR

Electronics Forum | Thu Mar 25 19:19:08 EST 1999 | Graham Naisbitt

I am looking into replacing another business division's Acrylic coating process with our Urethane coating process. Unfortunately, MIL-I-46068 doesn't differentiate AR/UR's performance, and the MFR data sheets don't match up at all (they each spec


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