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
Electronics Forum | Wed Feb 10 16:51:01 EST 2010 | flipit
Anyone using ENEPIG electroless nickel electroless palladium immersion gold? Am currently using selectively plated gold 25 micro inches in combo SMT/COB gold ball bonded product. Gold cost has increased over the years. Palladium cost is much lower
Electronics Forum | Tue Dec 08 17:55:51 EST 1998 | Dave F
1. What is the best way to remove polyurethane conformal coating from selected areas? Your conformal coat material supplier is best equipped to tell you how to remove the coating. Polyurethane conformal coating is not easy to remove. Without in-pu
Electronics Forum | Mon May 07 15:13:03 EDT 2001 | jdtpfacreate
Singh, The equipment varies in price. We make a wire bonder called the HW27U-H Wire Bonder. This is a gold to gold wire ball bonder. The substrate size you mention is within the area we can take into the machine. The key is the bonding area.
Electronics Forum | Tue Jun 04 19:33:16 EDT 2002 | rob_thomas
Dave's estimation is pretty conservative but there is a lot of equipment out there and a lot of people happy to make a sale.Implementing both mentioned processes it's difficult and time consuming .Even if you get good training from whoever sells you
Electronics Forum | Mon Nov 30 20:39:15 EST 1998 | Dave F
| I have a COB device that I need to decapsulate for failure analysis. | | I would like to find out how I can do it using common materials/process that I can easily find. | | Thank you and I look forward to hearing from you soon. | Trien: Level
Electronics Forum | Sat Sep 26 19:16:54 EDT 1998 | Graham Naisbitt
Ajit, How clean is clean? Are you running fine-line, fine-pitch; COB, BGA, Flip-Chip; making high rel circuits and putting them into a hostile environment? Well, as I have just posted to an earlier similar question on the SMTNet, there is no such thi
Electronics Forum | Wed Apr 17 22:17:58 EDT 2002 | davef
OK. I give-up: * �Nuts & Volts� Magazine, September 1997, ENCYCLOPEDIA OF ELECTRONIC CIRCUITS: THE CD-ROM OF 1,000 CIRCUITS � PART 1 - TJ Byers - In this three-part series, TJ will show you how to use this CD to go from concept to copper, and build
Electronics Forum | Sat May 16 19:31:27 EDT 1998 | Graham Naisbitt
Gentlemen, Please consider that ionic testing is designed only for detecting ionic contaminants. Yes there are instances of non-ionic contaminants that cause premature circuit failure. However, more importantly the prevailing specs are less than adeq
