Document Type and Number:
Japanese Patent JPS5623898
Kind Code:
Y2
Application Number:
JP7210274U
Publication Date:
June 04, 1981
Filing Date:
June 20, 1974
Export Citation:
International Classes:
H01L25/18; H01L23/12; H01L23/50; H01L25/00; H01L25/04; H03B1/00; H03B5/04; H03B7/06; H03L1/02; H03L7/00; (IPC1-7): H01L25/04; H03B7/06