Login| Sign Up| Help| Contact|

Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0472631
Kind Code:
U
Application Number:
JP11513190U
Publication Date:
June 26, 1992
Filing Date:
October 31, 1990
Export Citation:
Click for automatic bibliography generation   Help
International Classes:
G01R31/26; H01L21/66; (IPC1-7): H01L21/66; G01R31/26