Document Type and Number:
Japanese Patent JPS5512432
Kind Code:
Y2
Application Number:
JP6779974U
Publication Date:
March 18, 1980
Filing Date:
June 10, 1974
Export Citation:
International Classes:
H01L23/12; H01L23/02; H01L23/04; H01L23/06; H01L23/14; (IPC1-7): H01L23/12; H01L23/02