P

Inventor

DU MING HUA

SG7 patents
⚠️ This page may combine multiple inventors who share the name “DU MING HUA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

UNITED MICROELECTRONICS CORP

4 patents
US11476367B2Oct 18, 2022

Semiconductor device

UNITED MICROELECTRONICS CORP0 citations61
US11133418B2Sep 28, 2021

Semiconductor device and method for fabricating the same

UNITED MICROELECTRONICS CORP0 citations61
US10340391B2Jul 2, 2019

Semiconductor device and method for fabricating the same

UNITED MICROELECTRONICS CORP0 citations50
US10510549B2Dec 17, 2019

Method of fabricating a metal layer

UNITED MICROELECTRONICS CORP0 citations38

HONGQISHENG PREC ELECTRONICS QINHUANGDAO CO LTD

1 patent
US10681824B1Jun 9, 2020

Waterproof circuit board and method for manufacturing the same

HONGQISHENG PREC ELECTRONICS QINHUANGDAO CO LTD8 citations79

QING DING PREC ELECTRONICS HUAIAN CO LTD

1 patent
US11246225B2Feb 8, 2022

Circuit board with high reflectivity and method for manufacturing the same

QING DING PREC ELECTRONICS HUAIAN CO LTD0 citations55

HONGQISHENG PREC ELECTRONICS (QINHUANGDAO) CO LTD

1 patent
US9860977B1Jan 2, 2018

Transparent flexible printed circuit board and method for manufacturing the same

HONGQISHENG PREC ELECTRONICS (QINHUANGDAO) CO LTD0 citations38