Electronics Forum: copper earth (Page 1 of 1)

Sn99 Cu0.7 Ag 0.3

Electronics Forum | Mon Mar 07 20:22:05 EST 2005 | KEN

Here are some general rules for lead free wave solder: Noble aloys will cost more. Period. The cheapest metal on earth is lead. Costs can only go up in Lead Free. Consumer grade and class 2 electronics will most likely use Tin / Copper for wave.

Re: Cosmetics For PCBs

Electronics Forum | Wed Sep 30 13:54:00 EDT 1998 | Chrys

All y'all | | BACKGROUND. How many times do you see folks come to work all painted-up and then by the time first break comes, the lipstick, eye liner, and who knows what else are gone and they�re heading for the facilities to "freshen-up." I w

Re: Cosmetics For PCBs

Electronics Forum | Fri Oct 02 16:52:38 EDT 1998 | Dave F

All y'all | | | | | BACKGROUND. How many times do you see folks come to work all painted-up and then by the time first break comes, the lipstick, eye liner, and who knows what else are gone and they�re heading for the facilities to "freshen-up."

Why can my bare PCB be magnetized?

Electronics Forum | Thu Feb 01 03:02:50 EST 2018 | robl

Hi Rob, > > I did check with the board house, and > the confirmed that there was no Nickel plating, > but that the silver went straight onto the copper > in their immersion silver > process. > > Interestingly I've even tested an > unplated sam

Re: Board Warp And Twist

Electronics Forum | Thu Aug 10 13:12:10 EDT 2000 | Bob Willis

You may care to review the following from my Circuits Assembly page on line. "HOW FLAT IS FLAT AND DO WE NEED FLAT CIRCUIT BOARD, YES WE DO ? As production problems go there is one that keeps reoccurring time and time again. The blame is usually di

Wetting problem of PCB after reflow soldering

Electronics Forum | Fri Sep 14 15:31:02 EDT 2001 | davef

How in earthly heaven would someone else have a report analyzing the defects on your boards? Among the good failure analysis labs that can assess situations like yours are: * Robisan Laboratory 6502 East 21 St Indianapolis, IN 46219 317-353-6249 fax

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