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3631311
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Information
Patent Grant
3631311
References
Source
Patent Number
3,631,311
Date Filed
Not available
Date Issued
Tuesday, December 28, 1971
52 years ago
CPC
H01L27/0772 - Vertical bipolar transistor in combination with resistors only
H01L21/161 - Preparation of the foundation plate, preliminary treatment oxidation of the foundation plate, reduction treatment
H01L21/761 - PN junctions
H01L27/00 - Devices consisting of a plurality of semiconductor or other solid state components formed in or on a common substrate
Y10S148/049 - Equivalence and options
Y10S148/085 - Isolated-integrated
US Classifications
257 - Active solid-state devices
148 - Metal treatment
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