Optimization of wire bond process for yield improvement with ball grid array

The objective of this project was to improve the process yield of Ball Grid Array (BGA) packages. Preliminary analysis indicated that 42.2% of the yield losses during the wire bonding of BGA packages was due to Non-stick on Pad (NSOP). The main focus of this project was to optimise the processing pa...

Disgrifiad llawn

Manylion Llyfryddiaeth
Prif Awdur: Foo, Chiu Peng.
Awduron Eraill: Lam, Yee Cheong
Fformat: Traethawd Ymchwil
Cyhoeddwyd: 2008
Pynciau:
Mynediad Ar-lein:http://hdl.handle.net/10356/5710
Disgrifiad
Crynodeb:The objective of this project was to improve the process yield of Ball Grid Array (BGA) packages. Preliminary analysis indicated that 42.2% of the yield losses during the wire bonding of BGA packages was due to Non-stick on Pad (NSOP). The main focus of this project was to optimise the processing parameters to enhance the adhesion between the ball bond and bond pad, so as to reduce NSOP occurrence.