Industry News | 2008-08-07 14:42:08.0
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New Equipment | Industrial Automation
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Electronics Forum | Mon May 07 11:02:17 EDT 2001 | Singh
Hi all. I am looking into the implementation of the Chip on Board process with eutactic bonding and the then using either gold or aluminum wire to make wedge type wire bonding. Since I am totally new to this, can somebody guide me thru the process,
Electronics Forum | Mon Mar 03 10:38:28 EST 2003 | davef
Electroplated nickel and electroplated gold is the more �traditional� finish for aluminum wire bonding. That surface was an extension of gold thermosonic wire bonding that requires a thick [50 thou min] gold surface. For years fabricators recommend
Electronics Forum | Sun Mar 02 12:16:29 EST 2003 | ramanandkini
Recently, one of our new vendor supplied us PCBs with Electroplated Nickel and Gold. We have the other regular source giving us ENIG plating. In both the wirebonding quality is OK. How do we benchmark this? Which one is suitable for production with l
Electronics Forum | Sat Mar 15 20:24:13 EST 2003 | ramanandkini
Thanks Mr.Dave. Sorry for the delay. One of our major prolems in ENIG plated surface is that wire does not stick. For many years we were getting a bond strength of 14 grams in both ENIG and electroplated surfaces. Now one vendor supplies ENIG boards
Electronics Forum | Fri Aug 17 11:55:31 EDT 2001 | davef
5uin. Your nickel thickness is fine. Although if you wanted to trade costs, consider giving-up nickel to 150uin thickness, while increasing the gold thickness. Gold over electroless nickel creates brittle joints because of phosphorous in the nicke
Electronics Forum | Thu Sep 08 07:04:02 EDT 2005 | davef
Finer pitch: Wedge bonding can be designed and manufactured to very small dimensions, down to 50 mm pitch. Processing speed: Machine rotational movements make the overall speed of the wedge bonding process less than thermosonic ball bonding. Alumin
Electronics Forum | Thu Jul 04 23:17:24 EDT 2019 | 123456789
Today we will talk some other problems you may meet in the wedge bonding work. If you have any other supplement or suggestion, welcome to leave us message. Appear welding spot indentation on the frame, what's the causes? How to solve? 1.The Wedge’s
Electronics Forum | Tue Nov 15 09:31:27 EST 2005 | arclightzero
I have been reading a good deal about IMC (purple plague in particular) in gold wire/aluminum pad wire bonds. My company uses ultrasonic wedge bonding, and for the most part all of our bonding is gold/gold, however we have one particulr part that has
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