Electronics Forum: bonding microelectronics (Page 1 of 1)

gold wire bonding

Electronics Forum | Wed Dec 28 21:18:12 EST 2005 | davef

You don't TS bond gold wire to nickel [of ENIG] for the same reason that you don't TS bond gold wire to hard gold. [Nickel or maybe cobalt is used to harden soft gold.] Together nickel and gold produce unreliable bonds. Look here: * http://www.smta.

aluminium wire bonding on Electroless Nickel + Immersion gold

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

aluminium wire bonding on Electroless Nickel + Immersion gold

Electronics Forum | Mon Aug 27 15:06:29 EDT 2001 | davef

This otta push Wolfgang over the top ... Recommended reading G.G. Harman, Wire Bonding in Microelectronics : Materials, Processes, Reliability, and Yield, 2nd edition, McGraw-Hill Electronic Packaging and Interconnection Series, 1997. G.G. Harman, R

COB and wire bond

Electronics Forum | Mon May 07 22:29:52 EDT 2001 | davef

4 wire per sec ... you figure how many you need] Encapsulation ~$120K for a dispenser [10 sec per die ... you figure how many you need] plus a cure oven ~$100k Throw in a another ~$100k for marking and cleaning Check the September 2000 SMTnet New

COB Issue's (Non-Sticking)

Electronics Forum | Wed May 18 07:22:06 EDT 2005 | davef

Wire bonds don't stick when bonded * Check pull and shear strength. * Depending on point of failure, review parameters. * Listen during bonding, if there is a high pitch buzz, there is vibration in the system somewhere, "seek and destroy". * Get the

COB Wire Bonding Capabilities

Electronics Forum | Tue Feb 08 20:23:10 EST 2005 | davef

Try: *Promex Industries; 3075 Oakmead Village Dr, Santa Clara, CA 95051; 408-496-0222 Fax 408-496-0117 http://www.promex-ind.com * Advanced Microelectronics, Inc.; 1 Chestnut St. Nashua, NH 03060; 603-595-0333 Fax 603-595-5410 http://ourworld-top.c

Books for SMT

Electronics Forum | Tue Jan 16 20:34:17 EST 2007 | davef

DAVE�S BOOKSHELF ASSEMBLER�S ESSENTIALS Title: Soldering in ElectronicsAuthor: RJ Klein WassinkPublisher: Electrochemical PublicationsISBN: 090115024XPublication date: December 1989 I know, I know. The book was written in 1989!!!! I use this b


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