Inventor
CHANG CHI SHIH
US15 patents
⚠️ This page may combine multiple inventors who share the name “CHANG CHI SHIH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
9 patentsUS5774340AJun 30, 1998
Planar redistribution structure and printed wiring device
IBM271 citations98
US6000130ADec 14, 1999
Process for making planar redistribution structure
IBM33 citations92
US6829149B1Dec 7, 2004
Placement of sacrificial solder balls underneath the PBGA substrate
IBM17 citations91
US5959348ASep 28, 1999
Construction of PBGA substrate for flip chip packing
IBM25 citations91
US6188305B1Feb 13, 2001
Transformer formed in conjunction with printed circuit board
IBM50 citations89
US6353182B1Mar 5, 2002
Proper choice of the encapsulant volumetric CTE for different PGBA substrates
IBM14 citations83
US6255599B1Jul 3, 2001
Relocating the neutral plane in a PBGA substrate to eliminate chip crack and interfacial delamination
IBM12 citations72
US5684392ANov 4, 1997
System for extending operating time of a battery-operated electronic device
IBM9 citations67
US7227268B2Jun 5, 2007
Placement of sacrificial solder balls underneath the PBGA substrate
IBM3 citations61