Randy Li-Kai Chang

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Pingzhen City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Photoresist cleaning composition used in photolithography and a met...
- Patent number 10,072,237
- Issue date Sep 11, 2018
- VERSUM MATERIALS US, LLC
- Randy Li-Kai Chang
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...

Patents Applicationslast 30 patents

Information Patent Application
Photoresist Cleaning Composition Used in Photolithography and a Met...
- Publication number 20170037344
- Publication date Feb 9, 2017
- Air Products and Chemicals, Inc.
- Randy Li-Kai Chang
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...