Patents

4,845,335 Laser Bonding Apparatus and Method issued July 4, 1989

5,008,512 Method of Laser Bonding Electrical Members issued April 16, 1991

5,049,718 Method of Laser Bonding for Gold, Gold Coated and Gold Alloy Coated Electrical Members issued September 17, 1991

5,083,077 Bonding Metal Electrical Members with a Frequency Doubled Pulsed Laser Beam issued January 21, 1992

5,164,566 Method and Apparatus for Fluxless Solder Reflow issued November 17, 1992

5,272,309 Bonding Metal Members with Multiple Laser Beams issued December 21, 1993

7,424,136 Finger Sensing with Enhanced Mounting and Associated Methods issued September 9, 2008

7,599,532 Finger Sensing with Enhanced Mounting and Associated Methods issued October 6, 2009

This photo shows a MQFP that was built for Thinfilm Electronics, AB using low temperature curing molding compound and a stencil printing process. The package was soldered to the PCB with a xenon flashlamp to keep the processing temperatures below a critical threshold.