GB1062639A - Light emitting semiconductor devices - Google Patents

Light emitting semiconductor devices

Info

Publication number
GB1062639A
GB1062639A GB4943163A GB4943163A GB1062639A GB 1062639 A GB1062639 A GB 1062639A GB 4943163 A GB4943163 A GB 4943163A GB 4943163 A GB4943163 A GB 4943163A GB 1062639 A GB1062639 A GB 1062639A
Authority
GB
United Kingdom
Prior art keywords
circular
slice
region
semi
diameter
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
GB4943163A
Inventor
Christopher David Dobson
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB4943163A priority Critical patent/GB1062639A/en
Priority to DE1964ST023022 priority patent/DE1297230B/en
Publication of GB1062639A publication Critical patent/GB1062639A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Led Devices (AREA)
  • Led Device Packages (AREA)

Abstract

A light-emitting semi-conductor device comprises a circular or semi-circular slice of semi-conductor material of one conductivity type having two flat parallel faces and a peripheral edge surface normal to the faces and a flat region of opposite conductivity type lying within the slice and parallel to the faces, the region lying within a circular region concentric with the circular slice or a semi-circular region centrally positioned on the same diameter as the semi-circular slice, said circular or semi-circular region having a diameter or length which does not exceed a quarter of the diameter of the slice. A circular slice of n-Ga As has Zn diffused into it to form a circular concentric P-type region. The ratio between the diameter of the slice and that of the region is chosen such that light emitted from the PN junction will emerge from the slice without suffering total internal reflection. For GaAs, the ratio is 4 : 1. For mass production, a silic a coating is provided and Zn diffused in through holes in the silica formed by photo-resist techniques. Discs are cut out concentric with the diffused region and provided with Au contacts on opposite sides. In other embodiments a circular or semi-circular slice may be provided with a silvered surface to reflect light back through the slice whilst the diffused region may be a right parallelepiped lying within a circular region which has the above diameter ratio. In the case of a right parallelepiped (Fig. 3, not shown), the region may be positioned so that a Weierstrasse axis of the cylindrical slice passes through the centre of the region. Thus, any light emitted from the PN junction will be focused at a set point outside the slice.
GB4943163A 1963-12-13 1963-12-13 Light emitting semiconductor devices Expired GB1062639A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4943163A GB1062639A (en) 1963-12-13 1963-12-13 Light emitting semiconductor devices
DE1964ST023022 DE1297230B (en) 1963-12-13 1964-12-02 Semiconductor diode with light-emitting pn junction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4943163A GB1062639A (en) 1963-12-13 1963-12-13 Light emitting semiconductor devices

Publications (1)

Publication Number Publication Date
GB1062639A true GB1062639A (en) 1967-03-22

Family

ID=10452319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4943163A Expired GB1062639A (en) 1963-12-13 1963-12-13 Light emitting semiconductor devices

Country Status (2)

Country Link
DE (1) DE1297230B (en)
GB (1) GB1062639A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996037000A1 (en) * 1995-05-18 1996-11-21 Siemens Aktiengesellschaft Light-emitting semiconductor component

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10039435A1 (en) * 2000-08-11 2002-02-28 Osram Opto Semiconductors Gmbh Radiation-emitting semiconductor component used as an illuminating diode or semiconductor laser comprises an active layer, a contact surface and a cylindrical semiconductor body

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1081835A (en) * 1953-05-05 1954-12-23 Csf Modular light emitting device
US2983823A (en) * 1956-05-21 1961-05-09 Sprague Electric Co Optical radiation generating and detecting device
DE1052563B (en) * 1957-03-05 1959-03-12 Albrecht Fischer Dipl Phys Arrangement and manufacturing process for injection electroluminescent lamps
GB914645A (en) * 1959-11-20 1963-01-02 Standard Telephones Cables Ltd Improvements in or relating to semiconductor devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996037000A1 (en) * 1995-05-18 1996-11-21 Siemens Aktiengesellschaft Light-emitting semiconductor component

Also Published As

Publication number Publication date
DE1297230B (en) 1969-06-12

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