Active solid-state devices (e.g. – transistors – solid-state diode – Heterojunction device – Field effect transistor
Patent
1994-05-03
1995-03-21
Ngo, Ngan V.
Active solid-state devices (e.g., transistors, solid-state diode
Heterojunction device
Field effect transistor
257192, 257280, 257285, H01L 29161, H01L 29205, H01L 29225
Patent
active
053998871
ABSTRACT:
A modulation doped field effect transistor (10) is formed to have a drain (28, 12, 11) that is vertically displaced from the source (16, 17) and channel (20, 21) regions. The transistor (10) has the source (16, 17), channel (20, 21) and a portion of the drain (28) arranged laterally so that current (27) flows from the source (16, 17) laterally to the drain (28, 12, 11). A heterojunction layer (18) on the channel region (20, 21) facilitates forming a two dimensional electron gas in the channel (20, 21) region which provides the transistor (10) with a high transconductance.
REFERENCES:
patent: 4710788 (1987-12-01), Dambkes et al.
patent: 4805003 (1989-02-01), Holm et al.
patent: 5077589 (1991-12-01), Holm et al.
patent: 5323030 (1994-06-01), Koscica et al.
patent: 5334865 (1994-08-01), Fathimulla et al.
Davis Kenneth L.
Holm Paige
Mellen Neal
Weitzel Charles E.
Hightower Robert F.
Motorola Inc.
Ngo Ngan V.
Parsons Eugene A.
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