Semiconductor device manufacturing: process – With measuring or testing
Reexamination Certificate
2005-01-11
2005-01-11
Pert, Evan (Department: 2829)
Semiconductor device manufacturing: process
With measuring or testing
C702S081000
Reexamination Certificate
active
06841403
ABSTRACT:
Disclosed herein is a method for manufacturing semiconductor device and a method and apparatus for processing detected defect data, making it possible to quickly infer or determine a process and related manufacturing equipment that causes defects in a fabrication line of semiconductor devices, take remedy action, and achieve a constant and high yield. The method of the invention comprises quantitatively evaluating similarity of a defects distribution on a wafer that suffered abnormal occurrence of defects to inspection results for wafers inspected in the past, analyzing cyclicity of data sequence of evaluated similarity, evaluating relationship between the cyclicity of defects obtained from the analysis and the process method according to each manufacturing equipment in the fabrication line, and inferring or determining a causal process and equipment that caused the defects.
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Maeda Shunji
Noguchi Minori
Okabe Takafumi
Shishido Chie
Takagi Yuji
Hitachi , Ltd.
Pert Evan
Townsend and Townsend / and Crew LLP
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