Semiconductor device manufacturing: process – Chemical etching – Liquid phase etching
Reexamination Certificate
2008-04-08
2008-04-08
Sarkar, Asok Kumar (Department: 2891)
Semiconductor device manufacturing: process
Chemical etching
Liquid phase etching
C257SE21228, C510S175000
Reexamination Certificate
active
07354868
ABSTRACT:
This invention provides methods of fabricating semiconductor devices, wherein an alloy layer is formed on a semiconductor substrate to form a substrate structure, which methods include using an aqueous solution diluted ammonia and peroxide mixture (APM) to perform cleaning and/or wet etching treatment steps on the substrate structure.
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Han Jeong-Nam
Kim Yu-Kyung
Ko Hyung-ho
Kwon Doo-won
Mun Chang-Sup
Mills & Onello LLP
Samsung Electronics Co,. Ltd.
Sarkar Asok Kumar
LandOfFree
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