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GB1340461A - Method of forming a radio frequency transistor device - Google Patents

Method of forming a radio frequency transistor device

Info

Publication number
GB1340461A
GB1340461A GB1469672A GB1469672A GB1340461A GB 1340461 A GB1340461 A GB 1340461A GB 1469672 A GB1469672 A GB 1469672A GB 1469672 A GB1469672 A GB 1469672A GB 1340461 A GB1340461 A GB 1340461A
Authority
GB
United Kingdom
Prior art keywords
grid
layer
deposited
shaped
base region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1469672A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RCA Corp filed Critical RCA Corp
Publication of GB1340461A publication Critical patent/GB1340461A/en
Expired legal-status Critical Current

Links

Classifications

    • H10W20/40—
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D99/00—Subject matter not provided for in other groups of this subclass
    • H10P95/00—

Landscapes

  • Bipolar Transistors (AREA)

Abstract

1340461 Semi-conductor devices RCA CORPORATION 29 March 1972 [5 April 1971] 14696/72 Heading H1K The N-type discrete emitter regions 24 of an overlay transistor are surrounded, as viewed in a direction perpendicular to the plane of the device surface 14, by a grid-shaped layer 32 of P<SP>+</SP> material deposited on the surface 14 in contact with the base region 22. A P<SP>+</SP> grid 34 may also be present within the base region 22, produced by diffusion of impurities into and through the layer 32. The grid-shaped layer 32 may be of the same semi-conductor material as the main body 12, e.g. Si, or may be of a different material. It may be monocrystalline, deposited only in a grid-shaped window 28 in an oxide or nitride layer 26, or polycrystalline, deposited initially over the entire surface and then selectively removed from the layer 26 to leave only the grid 32. A further insulating layer 36 covers the grid 32 and is in turn covered by the common emitter contact layer 38.
GB1469672A 1971-04-05 1972-03-29 Method of forming a radio frequency transistor device Expired GB1340461A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13134271A 1971-04-05 1971-04-05

Publications (1)

Publication Number Publication Date
GB1340461A true GB1340461A (en) 1973-12-12

Family

ID=22449028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1469672A Expired GB1340461A (en) 1971-04-05 1972-03-29 Method of forming a radio frequency transistor device

Country Status (9)

Country Link
JP (1) JPS5222230B1 (en)
AU (1) AU465586B2 (en)
BE (1) BE781644A (en)
CA (1) CA950130A (en)
DE (1) DE2215546A1 (en)
FR (1) FR2132229B1 (en)
GB (1) GB1340461A (en)
IT (1) IT950987B (en)
NL (1) NL7204468A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2204889B1 (en) * 1972-10-27 1975-03-28 Sescosem
GB2086135B (en) * 1980-09-30 1985-08-21 Nippon Telegraph & Telephone Electrode and semiconductor device provided with the electrode

Also Published As

Publication number Publication date
FR2132229A1 (en) 1972-11-17
IT950987B (en) 1973-06-20
AU465586B2 (en) 1973-10-11
NL7204468A (en) 1972-10-09
DE2215546A1 (en) 1972-10-12
CA950130A (en) 1974-06-25
BE781644A (en) 1972-07-31
FR2132229B1 (en) 1977-08-26
JPS5222230B1 (en) 1977-06-16
AU4078172A (en) 1973-10-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee