Electronics Forum: copper solder joints (Page 1 of 379)

beryllium copper

Electronics Forum | Tue Mar 14 16:26:45 EST 2006 | patrickbruneel

BeCu is not solderable without plating Cu, Sn, Ag, Ni etc. The solder joint will only be as strong as the bond strength of the solderable plating to the BeCu Pat

Cracking solder joints

Electronics Forum | Mon Feb 01 16:40:45 EST 1999 | Dave Waddick

I have a product using high temperature solder to connect terminal pins to a PCB. The board is single sided copper, no plaiting. The solder is 95% tin 5 % silver. The flux is low activity rosin. The product is a subassembly. When the product is

hybrid solder joints

Electronics Forum | Thu May 13 21:45:14 EDT 1999 | ardis

I am seeing reflow around my signal pins after being subjected to a profile of 204c for 1 minute and 225c for a min of 30 seconds. Signal pins are soldered into a copper plated alum. case with SB5 and then silver plated. The pins have a hot oil tin

Re: Cracking solder joints

Electronics Forum | Tue Feb 02 12:31:26 EST 1999 | John

| I have a product using high temperature solder to connect terminal pins to a PCB. The board is single sided copper, no plaiting. The solder is 95% tin 5 % silver. The flux is low activity rosin. The product is a subassembly. When the product i

Re: hybrid solder joints

Electronics Forum | Fri May 14 00:28:09 EDT 1999 | Mike D.

| I am seeing reflow around my signal pins after being subjected | to a profile of 204c for 1 minute and 225c for a min of 30 seconds. Signal pins are soldered into a copper plated alum. case with SB5 and then silver plated. The pins have a hot oil

Problem with solder joints in wave solder

Electronics Forum | Tue Jan 21 13:51:19 EST 2014 | rgduval

Armando, Is the problem in the same spot on the board with every run? If so, there might be something about that particular location that is part of the cause (ie. ground or power plane connection). It sounds like you're seeing blow holes, or insu

Lead free tin copper only

Electronics Forum | Tue Feb 07 13:39:42 EST 2006 | gregoryyork

You can use straight forward Tin/Copper but it flows very poorly so solderability is an issue. Dosing with Phos improves this but need to stay on top of it. We have supplied some 3.8%Ag alloys for flow they work well but you get a small 'chill point'

Lead free tin copper only

Electronics Forum | Sun Feb 05 08:41:15 EST 2006 | Cmiller

Are you refering to reflow soldering or wave soldering? Brian, do you have any data to support that SAC305 is more reliable than Tin-Copper-Nickel? NEMI reccomended SAC type alloys for reflow and Tin-Copper for wave. See: http://circuitsassembly.

beryllium copper

Electronics Forum | Tue Mar 14 12:56:07 EST 2006 | robhs

Q: Is anyone aware of any solderability issues that may exist when soldering beryllium copper parts (in this case spring contacts) to a PCB using standard Pb63/Sn37 solder paste/wire?

Bad solder joints

Electronics Forum | Sat May 30 09:24:12 EDT 2009 | davef

head in pillow

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