US PATENT SUBCLASS 257 / 47
.~ In bipolar transistor structure


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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).