Electronics Forum: solder for gold plated boards (Page 1 of 27)

Black pad defect on gold plated boards

Electronics Forum | Thu Aug 21 12:31:54 EDT 2003 | adlsmt

I have some finished boards that I have concluded have "black pad" defect. Outside of the black crap on some of the solder joints, if the boards are electrically functional, are they reliable? Any opinions would be appreciated as I dont want to throw

Black pad defect on gold plated boards

Electronics Forum | Thu Aug 21 22:10:07 EDT 2003 | adlsmt

Well, for some reason the board house will pay for the boards but has some issue with paying for the parts on them. Why am I not supprised? Perhaps I have mis-diagnosed the problem. We have found two different board p/n's with the same type of defec

solder SnPb wire to gold plated IC

Electronics Forum | Sat Apr 14 09:28:58 EDT 2007 | davef

When soldering a component to a board, the solderability protection on the component combines with the solderability protection on the board and the solder to form an alloy. This alloy is unique for that combination of solder and solderability protec

Solderability problems with gold plated PCB's

Electronics Forum | Mon Nov 09 06:28:03 EST 2015 | recard

Hi guys, we have a problem and I hope something can give nme some new information. We have big solderability problems with a gold plated board. We changed the paste already, but there is no improvement. Could the Vapor phase Technology cause the p

Re: High temperature solder paste for gold plated MCMs

Electronics Forum | Wed Jan 26 14:33:47 EST 2000 | Glenn Robertson

Tuan - How about Sn/0.7Cu? It's M.P. is 227 and it's readily available. If the leads are Gold plated you might consider pre-tinning them. If you need a higher temp alloy any of the major solder companies can help - I suggets you start with Ind

Re: High temperature solder paste for gold plated MCMs

Electronics Forum | Wed Jan 26 21:30:06 EST 2000 | Dave F

Tuan: Consider Sn 96.5/Ag 3.5 or Sn10/PB88/Ag02 also. As Glenn says, you had better get rid of that gold or you will never have a shiney connection. Not that a shiney connection means anything about the quality or reliability of your soldering. M

High temperature solder paste for gold plated MCMs

Electronics Forum | Wed Jan 26 13:43:06 EST 2000 | Tuan Bui

221 degree C) to achieve good wetting and shiny filet. Comments and recommedations are welcome.

Re: High temperature solder paste for gold plated MCMs

Electronics Forum | Wed Apr 12 17:44:16 EDT 2000 | Rick

Glenn and Paul have hit the nail right on the head. Continue working with your solder vendors. I know that many people have succeeded with what you are trying. And the Pb-Free push is only making things better for you as companies develop just wha

Re: High temperature solder paste for gold plated MCMs

Electronics Forum | Thu Jan 27 14:16:14 EST 2000 | Tuan Bui

I've tried Indium NC-SMQ92(96.5Sn 3.5Ag) on these MCMs and achieved only marginal wetting on pads and parts. The good wetting is what I try to achieve, shiny is what my engineers want (Prototype environment). Does pre-cleaning the PWBs in ultrasonic

Re: High temperature solder paste for gold plated MCMs

Electronics Forum | Thu Jan 27 14:49:53 EST 2000 | Glenn Robertson

Tuan - One of the reasons I suggested pre-tinning (aside from the negative effects of Gold on appearance and reliability) is the known slower wetting of Sn/Ag and Sn/Cu alloys as compared to Sn/Pb. If you don't have to be Lead-free, the high Lead

  1 2 3 4 5 6 7 8 9 10 Next

solder for gold plated boards searches for Companies, Equipment, Machines, Suppliers & Information

SMT feeders

High Precision Fluid Dispensers
All Surplus Auction - December 18, 2024

Best Reflow Oven
2024 Eptac IPC Certification Training Schedule

Training online, at your facility, or at one of our worldwide training centers"
SMT Machines

World's Best Reflow Oven Customizable for Unique Applications
Electronics Equipment Consignment

Nozzles, Feeders, Spare Parts - Siemens, Fuji, Juki, Yamaha, etc...