Title:
SUBSTRATE TREATING METHOD
Document Type and Number:
Japanese Patent JP3869499
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reproduce the temperature of a substrate with high accuracy by heat-treating a dummy substrate in a heat treatment chamber and, after putting the wall surface forming material of the heat treatment chamber in the same heat cycle as that used for the heat treatment of the wafer at the heat treatment of the substrate.
SOLUTION: Before a first wafer is heat-treated in a lamp anneal chamber 18, a dummy wafer taken out from a shelf chamber 24 is inserted into the chamber 18. Then the dummy wafer is heat-treated until the wall. surface forming material of the chamber 18 is put in the same heat cycle as that used for the heat treatment of the wafer by heating the dummy wafer by photoirradiation. When the wall surface forming material of the chamber 18 reproduces a normal heat cycle, the first wafer is inserted into the chamber 18 for heat treatment successively to the removal of the dummy wafer from the chamber 18. Thereafter, a plurality of wafers is heat-treated one by one according to the same recipe.
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Inventors:
Nishihara Hideo
Takatoshi Chiba
Masuhiro Masuda
Toshihiro Nakajima
Takatoshi Chiba
Masuhiro Masuda
Toshihiro Nakajima
Application Number:
JP21298496A
Publication Date:
January 17, 2007
Filing Date:
July 22, 1996
Export Citation:
Assignee:
Dainippon Screen Mfg. Co., Ltd.
International Classes:
H01L21/205; H01L21/677; H01L21/26; H01L21/68; (IPC1-7): H01L21/26; H01L21/205; H01L21/68
Domestic Patent References:
JP1236616A | ||||
JP8037158A | ||||
JP6267806A | ||||
JP7122621A | ||||
JP7201951A | ||||
JP7240400A |
Attorney, Agent or Firm:
Takeo Mamiya
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