Inventor
YU GUOQING
CN17 patents
⚠️ This page may combine multiple inventors who share the name “YU GUOQING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHINA WAFER LEVEL CSP LTD
6 patentsUS7781250B2Aug 24, 2010
Wafer level chip size package for MEMS devices and method for fabricating the same
CHINA WAFER LEVEL CSP LTD27 citations91
US7663213B2Feb 16, 2010
Wafer level chip size packaged chip device with a double-layer lead structure and method of fabricating the same
CHINA WAFER LEVEL CSP LTD20 citations90
US7394152B2Jul 1, 2008
Wafer level chip size packaged chip device with an N-shape junction inside and method of fabricating the same
CHINA WAFER LEVEL CSP LTD47 citations90
US7795074B2Sep 14, 2010
WLCSP target and method for forming the same
CHINA WAFER LEVEL CSP LTD4 citations56
US8952512B2Feb 10, 2015
Wafer-level package structure of light emitting diode and manufacturing method thereof
CHINA WAFER LEVEL CSP LTD0 citations50
US7755155B2Jul 13, 2010
Packaging structure and method for fabricating the same
CHINA WAFER LEVEL CSP LTD0 citations46
TONGFU MICROELECTRONICS CO LTD
5 patentsUS11948960B2Apr 2, 2024
Semiconductor packaging method and semiconductor package device
TONGFU MICROELECTRONICS CO LTD0 citations61
US12074183B2Aug 27, 2024
Semiconductor packaging method and semiconductor package device
TONGFU MICROELECTRONICS CO LTD0 citations50
US11990432B2May 21, 2024
Semiconductor packaging method and semiconductor package device
TONGFU MICROELECTRONICS CO LTD0 citations50
US11990398B2May 21, 2024
Semiconductor package device having chip substrate with pads around photosensitive region
TONGFU MICROELECTRONICS CO LTD0 citations50
US11948911B2Apr 2, 2024
Semiconductor packaging method and semiconductor package device
TONGFU MICROELECTRONICS CO LTD0 citations50
AVANTGARDE SHANGHAI ENVIRONMENTAL TECH CO LTD
3 patentsUS11926709B2Mar 12, 2024
Method for recycling waste polyester
AVANTGARDE SHANGHAI ENVIRONMENTAL TECH CO LTD0 citations43
US11655351B2May 23, 2023
Method for recycling waste polyester with continuous alcoholysis and transesterification
AVANTGARDE SHANGHAI ENVIRONMENTAL TECH CO LTD0 citations43
US11572452B2Feb 7, 2023
Method for recycling continuous alcoholysis of waste polyester material
AVANTGARDE SHANGHAI ENVIRONMENTAL TECH CO LTD0 citations43