Electronics Forum | Fri Dec 28 13:01:46 EST 2012 | emeto
I assume your problem is comming from the carrier. If it is so: 1. use carrier from another material 2. Use solder paste that handles faster profile Good luck!
Electronics Forum | Wed Jan 09 12:53:55 EST 2013 | scais
Hello, We are having issues to solder components. We investigate the issue and found that the pads were having extra gold on the sides. Is it normal? Can we remove this gold 'bleeding from our PCB?' Thanks
Electronics Forum | Thu Jan 10 11:22:48 EST 2013 | pbarton
Looks to me like under etching of the underlying copper and the gold is just plated to all of the exposed copper surface. Is this characteristic the same on all solderable pads? You will not be able to remove this gold.
Electronics Forum | Tue Jan 15 10:35:08 EST 2013 | boriskilk
We would agree with Pete B about both the under etching as a possible issue and you will not be able to remove this gold. Another possibility is the solder mask (plating resist) hasn't been taken right to the edge of the pad.
Electronics Forum | Wed Jan 30 17:12:45 EST 2013 | dyoungquist
Solvent makes me think of dissolve which leads me to cleaning something. If you are trying to clean stencils, blades, etc. try this link to the product we use: http://www.techspray.com/product-info.php?pId=3&cId=17
Electronics Forum | Thu Feb 14 17:40:34 EST 2013 | jorge_quijano
PCB Supplier made an EDX anaysis, the found a chemical trapped in the holes, and some burnt burrs, according to what they say this stains are over the solder mask & silk, so they do not affect functionality.
Electronics Forum | Thu Jan 31 15:31:00 EST 2013 | rjohnston58
Are the conditions (Bullets) under the IPC Acceptable and Defect sections "ANDs" or "ORs"? In other words, does every condition under a section must be meet to be Acceptable/Defect or meeting any one condition suffices?
Electronics Forum | Thu Feb 07 11:46:25 EST 2013 | jasowiii
Does anyone have advice about the best low volume (hopefully under $10K) reflow system for SN96 or SAC305 solder? We recently purchased a benchtop IR oven and it is not working well. Jim
Electronics Forum | Mon Feb 18 12:09:17 EST 2013 | pbarton
What type of flux material does your solder paste have? I have seen difficulties when attempting to print small apertures with water washable and rosin types. Do you get a good first print and then have problems or is it the same from the start?
Electronics Forum | Fri Feb 15 14:45:30 EST 2013 | davef
Yes, the standard applies to things that are soldered. Read this ipc.org/TOC/J-STD-002C.pdf BR, davef
A US manufacturer of quality hand tools for those engaged in the repair, rework, R & D, testing, and assembly of electronic components and printed circuit boards from Through Hole to 2Mil Pitch Surface Mount.
98 Elm St.
Portland, ME USA
Phone: 1-207-775-6139
