Electronics Forum | Tue Mar 13 20:47:39 EDT 2018 | davef
I think of palladium coated copper with gold flash (CuPdAu) as bond wire used in chip attach. Look here: https://www.heraeus.com/media/media/het/doc_het/products_and_solutions_het_documents/bonding_wires_documents/fact_sheets/Factsheet_PdFlash.pdf
Electronics Forum | Sat Jul 17 03:02:58 EDT 1999 | Jeff Sanchez
| | | | | I need a good chemical to remove the lacquer finish off of magnet wire. I know there are different kinds but I need one that really works. Any suggestions would be great. thanks in advance guys. | | | | | | | | | What is it you're trying t
Electronics Forum | Fri Dec 03 18:17:12 EST 1999 | Dave F
Dave: There's lots of stuff on the web describing BGAs. Examples are: http://www.smtnet.com/bookstore/publications/0speckdo1/s1.html http://www.smtnet.com/bookstore/publications/0shutcco1/ch1p2.html http://www.citizen-america.com/OEM/bga/process
Electronics Forum | Fri Sep 17 03:55:45 EDT 1999 | Brian
| We have some SMT components with gold plated leads. They're actually LCC led packages. A good solder alloy to use would be Indium / Lead to reduce tin dissolution into the gold and avoid the resultant brittle intermetallic compound. However, a reco
Electronics Forum | Wed Sep 27 23:52:28 EDT 2006 | fctassembly
Hello Steve, Yes, there are differences in the various alloys and I have described briefly below these differences: SN100- a common name for 100% tin that is used to increase the tin content in 63/37. SN100C-Name for Tin/Copper/Nickel/Germanium all
Electronics Forum | Wed Apr 26 02:16:18 EDT 2006 | AR
We had x-ray and optical microscopy analyses done on transformers dip soldered with Sn/Pb, SN100C3 and SN100C4 alloys using temperatures 400�C ... 450 �C, with dip times of 2..4 seconds. We found that SN100C4 is at least as good as Sn/Pb 62/38 and SN
Electronics Forum | Thu Apr 05 09:17:40 EDT 2007 | itaig1
I have seen a method used where the pins on the connector are of the same materials as the thermocouple and the connector is connected via single strand wires of the same material to the PCB however the wires were spot welded to bare copper pads to r
Electronics Forum | Sat Jul 17 13:25:02 EDT 1999 | Scott
| | | | | | I need a good chemical to remove the lacquer finish off of magnet wire. I know there are different kinds but I need one that really works. Any suggestions would be great. thanks in advance guys. | | | | | | | | | | | What is it you're tr
Electronics Forum | Wed Dec 07 11:54:37 EST 2005 | russ
Would you by chance be soldering copper to aluminum?
Electronics Forum | Thu Dec 08 08:13:48 EST 2005 | grantp
Hi, Copper oxide is green right? So the green residue after a few days is corrosion of the wire? Regards, Grant
