Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shunpei Yamazaki0
Date of Patent
May 23, 2006
0Patent Application Number
108898000
Date Filed
July 13, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An electro-optical device having high operation performance and reliability, and a manufacturing method thereof. A TFT structure which is strong agains hot carrier injection is realized by disposing a Lov region 207 in an n-channel TFT 203 which forms a driver circuit. Further, Loff regions 217 to 220 and offset region are disposed in an n-channel TFT 304 which forms a pixel section, and a TFT structure of low OFF current value is realized. Further, by reducing the n-type impurity element contained in Loff regions 217 to 220 to approximately 1×1016 to 5×1018 atoms/cm3, further reduction of OFF current can be performed.
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