Login| Sign Up| Help| Contact|

Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0451140
Kind Code:
U
Application Number:
JP9295990U
Publication Date:
April 30, 1992
Filing Date:
September 04, 1990
Export Citation:
Click for automatic bibliography generation   Help
International Classes:
H01L21/301; H01L21/78; (IPC1-7): H01L21/78