US PATENT SUBCLASS 257 / 47
.~ In bipolar transistor structure
Current as of:
June, 1999
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257 /
HD
ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)
44
DF
WITH METAL CONTACT ALLOYED TO ELEMENTAL SEMICONDUCTOR TYPE PN JUNCTION IN NONREGENERATIVE STRUCTURE
{3}
47
.~ In bipolar transistor structure
DEFINITION
Classification: 257/47
In bipolar transistor structure:
(under subclass 44) Subject matter wherein the alloyed pn junction device is a bipolar transistor, i.e., a transistor structure whose working current passes through semiconductor material of both polarities (p and n).