Electronics Forum: viewed (Page 1401 of 7890)

Your Server is Slower than Molasses

Electronics Forum | Tue Jun 15 08:43:03 EDT 1999 | George

I hate to say this because I go into this great forum all the time, but ever since the announcement of "moving to a new and faster server", it's actually been alot slower! Often times, I can't even get on...

Fr4 Properties

Electronics Forum | Mon Jun 14 11:19:48 EDT 1999 | Frank Frimpong

Hello, I am looking for the surface resistivity and volume resistivity of standard fr4 as a function of temperature and /or humidity . can any one help?

PCB cleaning

Electronics Forum | Sat Jun 12 17:01:44 EDT 1999 | Murray Pulman

We are using so called no-clean fluxws for our small batch production, however the results are not always very visualy pleasing with white powdery deposits being the norm. I would like advise on the best avenue to explore for a small batch cleaning s

Re: Package outlines and footprints

Electronics Forum | Sat Jun 12 16:24:02 EDT 1999 | JohnW

| Is there public domain information available on standard surface mount package outlines and footprints? | Thanks, | WillyW | Willy, The IPC has a great listing for the std packages and footprints, as do most component manufacturers. I'd start on

inspection methods

Electronics Forum | Fri Jun 11 15:43:41 EDT 1999 | wayne sanita

How are you inspecting pcbs post-reflow, are you inspecting all or sampling. The type of assembly involved would be mainly chip components with a mix of actives and a few 25mil and under pitch. If you sample what are your fault rates looking like. T

BGA Rework

Electronics Forum | Wed Jun 09 12:55:04 EDT 1999 | Bryan Warner

Does anyone have thoughts on BGA rework. We now use the OK BGA 3000 and now am considering an Infrared machine. Any thoughts?

fiducials

Electronics Forum | Wed Jun 09 11:38:20 EDT 1999 | Roseann

In past PCB designs I have cleared all traces from all layers (except pwr/gnd) from fiducial area. It has come to my attention that this is only necessary on the side where fud is placed. Which is the correct method of design using a fidicial?

Anyone know a independent PCB inspection of BGA (X-Ray).

Electronics Forum | Tue Jun 08 09:37:20 EDT 1999 | Rob C

Anyone know a independent PCB inspection of BGA (X-Ray). We have several test boards that need BGA inspection.

European Union and Lead-Free assemblies

Electronics Forum | Tue Jun 08 09:21:47 EDT 1999 | Christopher Cross

Can anyone lead me to good information on when and how European Union is going to implement it's lead-free directives. I have heard 2002 and 2004 as possible dates.

Re: European Union and Lead-Free assemblies

Electronics Forum | Tue Jun 08 21:23:37 EDT 1999 | Dave F

| Can anyone lead me to good information on when and how European Union is going to implement it's lead-free directives. I have heard 2002 and 2004 as possible dates. | Try:


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