Semiconductor device manufacturing: process – Formation of semiconductive active region on any substrate – Amorphous semiconductor
Reexamination Certificate
2006-05-16
2006-05-16
Ngô, Ngân V. (Department: 2818)
Semiconductor device manufacturing: process
Formation of semiconductive active region on any substrate
Amorphous semiconductor
C438S674000, C438S680000
Reexamination Certificate
active
07045445
ABSTRACT:
Disclosed is a method for fabricating a semiconductor device by using a PECYCLE-CVD process. The method includes the steps of feeding source gas into a process chamber for predetermined time within one cycle, allowing reaction gas to flow in the process chamber at least until a plasma reaction is finished in the process chamber and feeding purge gas into the process chamber for a predetermined time within one cycle, thereby purging residual products remaining in the process chamber after source gas is reacted, forming plasma in the process chamber for a predetermined time within one cycle so as to allow reaction gas to react with plasma, thereby depositing a thin film on a wafer, and feeding purge gas into the process chamber for a predetermined time within one cycle, thereby purging residual products remaining in the process chamber after reaction gas is reacted. Superior step-coverage and uniformity of the thin film are achieved while depositing the thin film at a higher speed.
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Choi Seung Won
Kim Young Gi
Woo Sang Ho
Hynix / Semiconductor Inc.
Ladas & Parry LLP
Ngo Ngan V.
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