Semiconductor device manufacturing: process – Chemical etching – Vapor phase etching
Reexamination Certificate
2005-08-23
2005-08-23
Vinh, Lan (Department: 1765)
Semiconductor device manufacturing: process
Chemical etching
Vapor phase etching
C438S710000, C438S714000, C216S022000, C134S001100
Reexamination Certificate
active
06933239
ABSTRACT:
A method for removing conductive residue from a layer on a semiconductor substrate by exposing the substrate to a gas comprising a fluorine containing gas and a hydrogen containing gas. In one embodiment, the gas is excited to form a plasma that removes the conductive residue during fabrication of a magneto-resistive random access memory (MRAM) device.
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Chen Xiaoyi
Kumar Ajay
Yan Chun
Ying Chentsau
Applied Materials Inc.
Bach Joseph
Moser Patterson & Sheridan
Vinh Lan
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