Electronics Forum: (4) (Page 601 of 630)

Re: Alpha's Tetra Stencil System

Electronics Forum | Tue Jun 15 18:02:53 EDT 1999 | MMurphy

We have been using Alpha Tetra/DEK Vector for the last 3 years. Prior to that we were using mesh on frame. We do about 15 job changes a day and our main runners are loaded about 4 times per week. In the three years we have been using the sys

Re: Metal based PCB reflow.

Electronics Forum | Thu Jun 10 12:10:41 EDT 1999 | Earl Moon

I am starting a new project which involve 3 oz copper layer with 20 mil components on the top of the board and 0.040" thick copper with D2Pak on the bottom of the board. There is anybody has experience on metal-based PCB reflow process?

Re: Oooooh noooooo!!!

Electronics Forum | Tue Jun 08 15:04:06 EDT 1999 | JohnW

Hi,my master How to iron out such soldering bridge with below conditions: 1.The component(Harness)lead pitch is 2.0mm,the lead length is 3.2mm. 2.PCB width is 1.6mm.Pad size is 1.65mm.Its a single copper PCB 3.using s

Re: Dilbert-Like Episodes in Manufacturing... (i need to vent...)

Electronics Forum | Sat Jun 05 07:03:49 EDT 1999 | Earl Moon

Any of you Process/Manufacturing Engineers, techs, etc..or those of you who 'have a clue' about this stuff been victimized by (clueless and uneducated) Manufacturing Supervisors and (clueless and uneducated) Managers who blame EVERYTHING on YOU,

Re: Wave Solder Problems - VIA HOLES

Electronics Forum | Thu Jun 03 22:18:36 EDT 1999 | Dave F

I'm encountering a new problem at my new company that I haven't encountered before in my past life - and that's Wave Soldering VIA holes. We've been getting a rash of defects that we call in this company, "insufficient solder in VIA hole." The

Re: QFP solder paste volume

Electronics Forum | Mon May 24 13:33:46 EDT 1999 | Dave F

We are running a number of boards with 8-10 25 mil PQFPs on board. Our process is mature with at least 3 years experiance and statistically few opens on the QFPs. Our beloved purchasing department has chased the almighty $ and changed FAB vendor

Re: PCI Press Fit on Daughter Cards

Electronics Forum | Fri Jun 04 14:00:32 EDT 1999 | Arthur Burdick

Wendy, we at ASG make electric presses for press fit connectors, and have made fixtures for AMP Zpak connectors. give me a call i believe we can help. 561-848-6746 Arthur Wendy.. I found that little nugget a good one from my connector supp

Re: all powerfull UP78..or is it..?

Electronics Forum | Fri Apr 30 15:24:12 EDT 1999 | Kevin Hussey

Ok folk's has anyone used Alpha Metal's UP78 solder paste ? Our place is looking to move to that as the way to go, getting rid of the Hereaus 362's and Alpha 737's of the current set up. My question's are really : how is the printabilit

Re: Why not use lead-free plumbing solders in electrical applications?

Electronics Forum | Fri Apr 30 09:32:42 EDT 1999 | Steve Gregory

Hi all This Debate on lead free soldering is really hotting up here in Europe. From 2004 the use of lead in components and assemblies will be banned here. Also flame retardent halogens will be banned(FR4 etc). While we all agree that we hav

Re: Metal baskets for cleaning of PCBA's (The Cheap way)

Electronics Forum | Wed Apr 21 21:47:46 EDT 1999 | Steve Gregory

HELP I need any information on how to purchase "Metal baskets" (dimensions 3" height x 18" width and length) for our HUGE cleaning machine for our PCBA's. Pleas eif anybody could give me sales info, or company information it would be greatly a


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