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Patents Grants
last 30 patents
Information
Patent Grant
Method, equipment, and recording medium for controlling exposure ac...
Patent number
6,662,145
Issue date
Dec 9, 2003
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
METHOD OF INCREASING OVERLAY ACCURACY IN AN EXPOSURE STEP AND OVERL...
Patent number
6,553,137
Issue date
Apr 22, 2003
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of correcting alignment
Patent number
6,338,971
Issue date
Jan 15, 2002
Mitsubishi Denki Kabushiki Kaisha
Tsuneo Yasuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photolithography processing based on fresh calibration parameter va...
Patent number
6,338,925
Issue date
Jan 15, 2002
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Exposure method, exposure apparatus and semiconductor device manufa...
Patent number
6,239,858
Issue date
May 29, 2001
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of improving registration accuracy and method of forming pat...
Patent number
6,229,618
Issue date
May 8, 2001
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Overlay error determination mark considering influence of aberration
Patent number
6,165,656
Issue date
Dec 26, 2000
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Aberration estimation reticle for determining overlay error
Patent number
5,939,226
Issue date
Aug 17, 1999
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of alignment in exposure step through array error and shot e...
Patent number
5,856,054
Issue date
Jan 5, 1999
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of aligning reticle pattern
Patent number
5,792,580
Issue date
Aug 11, 1998
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Measuring method of a relative positional deviation of reticle pattern
Patent number
5,773,180
Issue date
Jun 30, 1998
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of determining position offset of a pattern
Patent number
5,671,165
Issue date
Sep 23, 1997
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Semiconductor device and fabrication method therefor
Publication number
20030104292
Publication date
Jun 5, 2003
Mitsubishi Denki Kabushiki Kaisha
Yoshikatu Tomimatu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY