Electronics Forum | Tue Oct 09 08:30:22 EDT 2007 | davef
As a starting point, follow the guidance of your paste supplier: http://www.aimsolder.com/tds/WS%20353%20Sn62%20&%20Sn63%20Solder%20Paste.pdf
Electronics Forum | Tue Dec 30 21:14:22 EST 2003 | davef
You're thinking correctly. 80Au20Sn is incompatible with: * Sn/Pb * In/Sn * Sn/Pb/In * Sn/Pb/Bi Contact your solder supplier to obtain pictures of IMC.
Electronics Forum | Fri Dec 26 00:30:36 EST 2003 | Indy
hi, I wondering if anyone have any information on intermetallic growth in 80Au20Sn solder alloy. I have read that it has high reliability. Which bring an important question to my mind. What about Gold embrittlement ? Bye Indy
Electronics Forum | Thu Apr 15 20:48:57 EDT 2004 | Ken
Tin antimony mp = 236-240C 80Au / 20SN mp = 280C sn25 Ag10 sb = 365C There are very few high temperature service alloys. how about filling a 1400lb pot with 80% Gold! What is the application?
Electronics Forum | Fri Aug 02 10:06:37 EDT 2019 | davef
I don't get it. The liquidus of 80Pb/20Sn is like 280*C. Your reflow temperature got nowhere near that value. Where did that material go? Is it folded back under the component? Disappeared? Was it ever there? Ask someone while analysis tools to hel
Electronics Forum | Tue Jul 30 12:46:15 EDT 2019 | davef
I'd be surprised if CCGA leads were getting bent or tilted during the reflow soldering process. If they were bent during handling, that would be less surprising. 235*C on the body for a minimum peak temperature of 208*C at the connecting leads does
Electronics Forum | Wed Aug 31 06:33:04 EDT 2005 | Slaine
if a solder has over 85% lead its classed as RoHS complient because its difficult to achive the same melting point with anything else (298degrees). a few other alloys with a similar range are ; % % 266E266 82.6 Cd 17.4 Zn 271MP 100 Bi 280E2
Electronics Forum | Wed Jul 31 07:51:31 EDT 2019 | ameenullakhan
Hi Dave, lead is 80Pb/20Sn. Top joint off CCGA lead is SN63/Pb37. Thermocouple was placed at center lead of the CCGA and one at the corner lead of CCGA. Ramp Rate Center 1.09 Corner 1.26 Soak ( 140 - 160 deg C ) Center 37sec Corner 38sec Ref
Electronics Forum | Fri Dec 27 02:11:31 EST 2019 | anteiv
Hello, We are having problems with SMD wave soldering (ERSA) used flux is BALVER ZINN 390-RX-HT https://www.balverzinn.com/tl_files/balverzinn/downloads/intern/TDB/PDS_390-RX-HT_EN.pdf https://www.balverzinn.com/tl_files/balverzinn/downloads/datenb
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