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GB959488A - A semi-conductor device - Google Patents

A semi-conductor device

Info

Publication number
GB959488A
GB959488A GB35379/61A GB3537961A GB959488A GB 959488 A GB959488 A GB 959488A GB 35379/61 A GB35379/61 A GB 35379/61A GB 3537961 A GB3537961 A GB 3537961A GB 959488 A GB959488 A GB 959488A
Authority
GB
United Kingdom
Prior art keywords
electrode
zone
semi
alloyed
electrodes
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
GB35379/61A
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.)
Siemens Schuckertwerke AG
Siemens Corp
Original Assignee
Siemens Schuckertwerke AG
Siemens 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 Siemens Schuckertwerke AG, Siemens Corp filed Critical Siemens Schuckertwerke AG
Publication of GB959488A publication Critical patent/GB959488A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D62/00Semiconductor bodies, or regions thereof, of devices having potential barriers
    • H10D62/10Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
    • H10D62/13Semiconductor regions connected to electrodes carrying current to be rectified, amplified or switched, e.g. source or drain regions
    • H10D62/141Anode or cathode regions of thyristors; Collector or emitter regions of gated bipolar-mode devices, e.g. of IGBTs
    • H10D62/148Cathode regions of thyristors

Landscapes

  • Thyristors (AREA)
  • Electrodes Of Semiconductors (AREA)

Abstract

959,488. Semi-conductor devices. SIEMENS - SCHUCKERTWERKE A.G. Sept. 29, 1961 [Sept. 30, 1960], No. 35379/61. Heading H1K. A PNPN semi-conductor device comprises a point form electrode on one of the inner zones, which lies adjacent a projection forming part of a large area electrode on the adjoining end zone so that a portion of high current density is provided. Figs. 2 and 3 show a semi-conductor body with four NPNP zones 6, 3a, 2, 3b respectively. A boron-gold foil is alloyed to P-zone 3b to provide ohmic contact 5 and a gold-antimony circular disc with a projection is alloyed to P-zone 3a to form the N-zone 6 and electrode 7. A small boron containing gold foil is alloyed to P-zone 3a to provide electrode 8. Electrodes 7 and 8 may be 50 Á apart. In operation, the positive pole of the load current source is connected to electrode 5 and the negative to electrode 7. Striking current may be applied through electrode 8 to effect conduction in thyratron manner between the main electrodes; quenching may be effected by providing current pulses in the opposite direction through electrode 8. The high current density between electrodes 7 and 8 in the projection area establishes the first highly conductive region which then spreads over the whole of electrode 7. The P-layer 3 may be provided by heating an N-type, 100 ohm cm. silicon wafer in the presence of aluminium at 1200‹ C. for 40 hours to give a doping concentration of about 10<SP>15</SP>/cm.<SP>3</SP> Etching separates the layer into two portions, 3a and 3b.
GB35379/61A 1960-09-30 1961-09-29 A semi-conductor device Expired GB959488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES70726A DE1156509B (en) 1960-09-30 1960-09-30 A semiconductor component having an essentially single-crystal semiconductor body and four zones of alternating conductivity type connected in series, and a method of manufacturing

Publications (1)

Publication Number Publication Date
GB959488A true GB959488A (en) 1964-06-03

Family

ID=7501986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35379/61A Expired GB959488A (en) 1960-09-30 1961-09-29 A semi-conductor device

Country Status (3)

Country Link
CH (1) CH386568A (en)
DE (1) DE1156509B (en)
GB (1) GB959488A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966276C (en) * 1953-03-01 1957-07-18 Siemens Ag Semiconductor arrangement with at least two control electrodes or groups of control electrodes for electronic scanning or switching arrangements

Also Published As

Publication number Publication date
DE1156509B (en) 1963-10-31
CH386568A (en) 1965-01-15

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