Chang-Hu Tsai

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Tai-Nan City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Method for reducing critical dimension and semiconductor etching me...
- Patent number 7,268,086
- Issue date Sep 11, 2007
- United Microelectronics Corp.
- Chang-Hu Tsai
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD FOR DISPLAYING AN ONLINE ELECTRONIC DOCUMENT
- Publication number 20240354046
- Publication date Oct 24, 2024
- Kdan Mobile Software Ltd.
- PO-CHOU SU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ONLINE SIGNATURE SYSTEM, METHOD AND ELECTRONIC APPARATUS
- Publication number 20230133618
- Publication date May 4, 2023
- Kdan Mobile Software Ltd.
- Chang-Zhou Tsai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR REDUCING CRITICAL DIMENSION AND SEMICONDUCTOR ETCHING ME...
- Publication number 20070051696
- Publication date Mar 8, 2007
- Chang-Hu Tsai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ETCHING OF SILICON NITRIDE WITH IMPROVED NITRIDE-TO-OXIDE SELECTIVI...
- Publication number 20060292883
- Publication date Dec 28, 2006
- Chang-Hu Tsai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PATTERNING METHOD
- Publication number 20060068593
- Publication date Mar 30, 2006
- Chang-Hu Tsai
- H01 - BASIC ELECTRIC ELEMENTS