Electronics Forum: board (Page 293 of 1638)

PCB Fiber

Electronics Forum | Wed Jun 09 10:32:37 EDT 2004 | Sherri

Fiber from where the board is scored and separated. Is it possible for traces of copper to be present in that area of PCB?

V-Groove Keep Out Area

Electronics Forum | Thu Jun 10 14:55:43 EDT 2004 | russ

It really depends on how you depanel these, If you are using a machine you can probably get away with the 1mm, If not, the 5mm is there to help reduce the cahnce of fracturing the component. Some interesting notes about having a defined keepout is

Solder Balls in Boards

Electronics Forum | Sat Jun 19 05:18:24 EDT 2004 | Sanjay Verma

Please bake PCB. And try other paste

Lead-Free Finish Boards and Components

Electronics Forum | Wed Jul 07 13:56:57 EDT 2004 | Pierre RICHARD

As converting our boards to lead-free finish (Immersion White Tin) we decided to change de mask color from green to blue. We thought this would be a good idea to spread the idea so we could easily recognize the type of solder application related to t

flux on PCB's after cleaning

Electronics Forum | Fri Jul 23 09:14:28 EDT 2004 | davef

Consider your flux suppliers recommendations when determining the proper cleaning method for your boards.

Solder balls - Pb wave soldering

Electronics Forum | Thu Aug 12 13:34:03 EDT 2004 | gregoryyork

Yes unfortunately solder resist again, getting boring I know. That green stuff on the boards causes all kinds of problems if not applied correctly. Can't blame the flux (as usual) or the process as he has tried all varients to no avail and therosin s

cracked capacitors at SMT 1&2

Electronics Forum | Tue Aug 17 15:52:29 EDT 2004 | davef

We agree with Rob. It sounds like someone is trying to pound your caps through the board.

Reflow oven

Electronics Forum | Tue Aug 24 14:28:42 EDT 2004 | Rush Fan

Although pretty much standard these days, if you are planning on using Nitrogen, look for an on-board oxygen analyzer.

PCB Test Board-stress test

Electronics Forum | Sun Aug 22 22:31:31 EDT 2004 | ttye01

Hi Dave, Thanks for the input. Will certainly take your advice. Thomas

Repeated reflows

Electronics Forum | Tue Aug 24 14:49:21 EDT 2004 | Rush Fan

I was notified that one of our operators took it upon themselves to run a board assembly through our reflow oven multiple times when he discovered what looked like incomplete reflow. Based on this being done, its been asked of me how, if any, has the


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