Electronics Forum: depaneling and printed and circuit and board (Page 1 of 4)

PDBE and PBB replacements???

Electronics Forum | Mon Apr 25 17:07:11 EDT 2005 | rush316

You indicate that PBBs and PBDEs are included in FR4 materials!! Does this include PCB (Printed Circuit Boards)??

PDBE and PBB replacements???

Electronics Forum | Mon Apr 25 22:56:44 EDT 2005 | davef

rush316 First, no one stated that PBB and/or PCBE are in FR4. FR4 contain tetra-bromo-bisphenol A [TBBA]. Second, there are classes [and grades] of dielectric materials used in fabricating printed circuit boards. Grades, NEMA LI-1. From these gr

Geometric Dimensioning and Tolerancing

Electronics Forum | Sat Jun 06 09:53:59 EDT 1998 | Earl Moon

GEOMETRIC DIMENSIONING AND TOLERANCING (GDT) Using and applying GDT to printed circuitry and assemblies is very much like applying it to any other design for manufacturing (DFM) or design for assembly (DFA) requirement using concurrent engineering (C

PDBE and PBB replacements???

Electronics Forum | Fri Mar 11 18:30:50 EST 2005 | davef

Russ: In December 2003, the European Commission released the following statement: �The commission services have prepared a draft Commission decision establishing maximum concentration values pursuant to Article5(1)(a) of Directive 2002/95/EC. The pr

BGA rework and inspection

Electronics Forum | Thu May 30 10:31:03 EDT 2002 | robbied

Hi Yannick. This is an issue that we are just recently getting into but here is some ifo that I have gathered so far. I have seen/ used 2 different rework machines. The one we have bought is a 'PACE TF2000' which was at the lower cost end of the mar

AOI, Quality and SPC

Electronics Forum | Mon Mar 03 13:18:02 EST 2003 | msivigny

Hello phil, The use of AOI systems give us the opportunity to auto-collect defect information much the way you're using them now. AOI systems become extremely effective when the collected data is used to perform some positive change into the process.

Re: IPC and Nepcon

Electronics Forum | Wed Nov 18 14:42:22 EST 1998 | Dave F

I heard somewhere that SMEMA has joined IPC, and that the association has decided to boycott Nepcon from year 2000. Can anyone tell me if this is true Nick: SMEMA and IPC are talking about merging (EP&P, 11/98, p 18). Below is a news release

pcb purchasing and pcb assembly

Electronics Forum | Thu Mar 19 12:26:10 EDT 2020 | yuaanliie

You have mostly set in your mind before purchasing PCB i.e. PCB is an acronym for the printed circuit board. Last month I purchased PCB from Great PCB.

Re: Geometric Dimensioning and Tolerancing

Electronics Forum | Sat Jun 06 22:53:11 EDT 1998 | EFData

Earl, As always, I am interested in what you have to say, but I am still a little vague on your application of ANSI Y14.5 as it relates to the manufacturability of an assembled printed circuit board. Are you implying that component placement coordina

Re: Geometric Dimensioning and Tolerancing

Electronics Forum | Sun Jun 07 02:06:26 EDT 1998 | Earl Moon

Earl, As always, I am interested in what you have to say, but I am still a little vague on your application of ANSI Y14.5 as it relates to the manufacturability of an assembled printed circuit board. Are you implying that component placement coor

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