Login| Sign Up| Help| Contact|

Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5780834
Kind Code:
U
Application Number:
JP15722480U
Publication Date:
May 19, 1982
Filing Date:
October 31, 1980
Export Citation:
Click for automatic bibliography generation   Help
International Classes:
H01L21/50; H01L21/60; (IPC1-7): H01L21/50; H01L21/60