GB1197061A - Semi-Conductor Devices - Google Patents

Semi-Conductor Devices

Info

Publication number
GB1197061A
GB1197061A GB54996/66A GB5499666A GB1197061A GB 1197061 A GB1197061 A GB 1197061A GB 54996/66 A GB54996/66 A GB 54996/66A GB 5499666 A GB5499666 A GB 5499666A GB 1197061 A GB1197061 A GB 1197061A
Authority
GB
United Kingdom
Prior art keywords
wafer
layer
semi
impurity
face
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
GB54996/66A
Inventor
Michael Albert Stacey
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries Ltd
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
Priority to GB5288/66A priority Critical patent/GB1200596A/en
Application filed by Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB54996/66A priority patent/GB1197061A/en
Publication of GB1197061A publication Critical patent/GB1197061A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/70Bipolar devices
    • H01L29/74Thyristor-type devices, e.g. having four-zone regenerative action
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/66007Multistep manufacturing processes
    • H01L29/66075Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
    • H01L29/66227Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
    • H01L29/66363Thyristors

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Insulating Films (AREA)

Abstract

1,197,061. Semi-conductor devices. JOSEPH LUCAS (INDUSTRIES) Ltd. 2 Nov., 1967 [8 Dec., 1966], No. 54996/66. Addition to 1,124,762. Heading H1K. In the method of producing a three layer semi-conductor device according to Specification 1,124,762 in which a raised portion is formed on one face of a wafer, the opposite face is masked to define an outer area and an inner area which lies completely within the projection of the raised portion on to that face, and an impurity is diffused into the wafer until three layers are produced with the junctions extending to said opposite face, the masking layer is of silicon nitride. A layer of silicon nitride is deposited on a silicon wafer by reacting silane with ammonia in the presence of excess hydrogen. The layer is then photomasked and etched using hydrofluoric acid to produce the mask. If the wafer is N-type the impurity diffused-in may be gallium or aluminium, and if the wafer is P-type the impurity may be phosphorus. A further region may be produced to form an SCR.
GB54996/66A 1966-11-25 1966-12-08 Semi-Conductor Devices Expired GB1197061A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5288/66A GB1200596A (en) 1966-11-25 1966-11-25 Improvements in or relating to diffusion masks for semiconductor diffusion processes
GB54996/66A GB1197061A (en) 1966-11-25 1966-12-08 Semi-Conductor Devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5288/66A GB1200596A (en) 1966-11-25 1966-11-25 Improvements in or relating to diffusion masks for semiconductor diffusion processes
GB54996/66A GB1197061A (en) 1966-11-25 1966-12-08 Semi-Conductor Devices

Publications (1)

Publication Number Publication Date
GB1197061A true GB1197061A (en) 1970-07-01

Family

ID=35266804

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5288/66A Expired GB1200596A (en) 1966-11-25 1966-11-25 Improvements in or relating to diffusion masks for semiconductor diffusion processes
GB54996/66A Expired GB1197061A (en) 1966-11-25 1966-12-08 Semi-Conductor Devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB5288/66A Expired GB1200596A (en) 1966-11-25 1966-11-25 Improvements in or relating to diffusion masks for semiconductor diffusion processes

Country Status (1)

Country Link
GB (2) GB1200596A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311572A (en) * 1976-07-19 1978-02-02 Handotai Kenkyu Shinkokai Method of making semiconductor device

Also Published As

Publication number Publication date
GB1200596A (en) 1970-07-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees