IT994398B - IMPROVEMENT IN LIGHT EMITTING DIODES FOR LOW TEMPERATURE AND LOW VOLTAGE OPERATION - Google Patents
IMPROVEMENT IN LIGHT EMITTING DIODES FOR LOW TEMPERATURE AND LOW VOLTAGE OPERATIONInfo
- Publication number
- IT994398B IT994398B IT53070/73A IT5307073A IT994398B IT 994398 B IT994398 B IT 994398B IT 53070/73 A IT53070/73 A IT 53070/73A IT 5307073 A IT5307073 A IT 5307073A IT 994398 B IT994398 B IT 994398B
- Authority
- IT
- Italy
- Prior art keywords
- anode
- phosphor
- zno
- work function
- oct
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/26—Materials of the light emitting region
- H01L33/28—Materials of the light emitting region containing only elements of group II and group VI of the periodic system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L24/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/32—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/4501—Shape
- H01L2224/45012—Cross-sectional shape
- H01L2224/45015—Cross-sectional shape being circular
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45144—Gold (Au) as principal constituent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01006—Carbon [C]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01015—Phosphorus [P]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01047—Silver [Ag]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/12—Passive devices, e.g. 2 terminal devices
- H01L2924/1204—Optical Diode
- H01L2924/12041—LED
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/12—Passive devices, e.g. 2 terminal devices
- H01L2924/1204—Optical Diode
- H01L2924/12042—LASER
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
Abstract
1454085 Luminescent materials and uses thereof MINNESOTA MINING & MFG CO 11 Oct 1973 [12 Oct 1972 10 Sept 1973] 47612/73 Heading C4S [Also in Division H1] An L.E.D. comprises a single crystal of ZnO which exhibits a fluorescent efficiency of not less than 0.001 in a band between 3700Š and 4000Š at 77‹ K., and includes a substantially ohmic cathode 36 and a rectifying anode 34, the diode emitting violet light at room temperature. The cathode may be of low work function In, or Zn or tin oxide and/or indium oxide and preferably of work function # the work function of ZnO. The anode may be high work Cu, Ag, Au, Pt or C and ultra-violet responsive phosphor 30 may convert the L.E.D. emission. Jig 38 facilitates contact formation. Fig. 4 (not shown) is a coherent radiation source with reflector layers (60), (62), and Au anode (64). Mechanisms are discussed including decay of free excitons, and donors are provided to compensate acceptor concentration of <10 p.p.m. by heating in the presence of ZnS for example for Zn diffusion, followed by quenching. Crystals may be thin slabs from a single crystal or naturally grown and selected by laser or Hg arc excitation according to efficiency. Operation may be A.C. or D.C., the resistivity may be 1 # cm. for 10<SP>17</SP> electrons/c.c. and reduction of acceptor states provided by Li and Na and in amount <10<SP>16</SP>/c.c. is disclosed. Crystal orientation is discussed and surfaces preferably shaped to minimize internal reflection and to focus. Green fluorescence of as grown ZnO may be countered by excess Zn doping and removal of an outer layer. Detailed examples specify voltages and current densities, band gaps, dimensions and further electrode details, including as examples only, a plurality of point contacts provided by Au particles in silicate binder, Au needles with blue ZnS phosphor on the opposite crystal face, four anode dots, gold paste over a blue organic phosphor on the oxygen face, the same phosphor on the opposite face increasing brightness, Au coated silica, rough 10Á Au spheres, and cleaved or otherwise mechanically deformed evaporated films. Applications are specified. Reference is included to Specification 1,452,515.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29683772A | 1972-10-12 | 1972-10-12 | |
US05/396,003 US4081764A (en) | 1972-10-12 | 1973-09-10 | Zinc oxide light emitting diode |
Publications (1)
Publication Number | Publication Date |
---|---|
IT994398B true IT994398B (en) | 1975-10-20 |
Family
ID=26969841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT53070/73A IT994398B (en) | 1972-10-12 | 1973-10-11 | IMPROVEMENT IN LIGHT EMITTING DIODES FOR LOW TEMPERATURE AND LOW VOLTAGE OPERATION |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS4994293A (en) |
CA (1) | CA1011862A (en) |
CH (1) | CH569366A5 (en) |
DE (1) | DE2350911A1 (en) |
FR (1) | FR2203255B1 (en) |
GB (1) | GB1454085A (en) |
IT (1) | IT994398B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100643442B1 (en) | 1996-06-26 | 2006-11-10 | 오스람 게젤샤프트 미트 베쉬랭크터 하프퉁 | Light-emitting semiconductor component with luminescence conversion element |
US6057561A (en) * | 1997-03-07 | 2000-05-02 | Japan Science And Technology Corporation | Optical semiconductor element |
WO2000016411A1 (en) * | 1998-09-10 | 2000-03-23 | Rohm Co., Ltd. | Semiconductor light-emitting device and method for manufacturing the same |
CN114477993A (en) * | 2022-01-24 | 2022-05-13 | 仲恺农业工程学院 | ZnO material and basic property research method and application thereof |
-
1973
- 1973-10-10 DE DE19732350911 patent/DE2350911A1/en not_active Ceased
- 1973-10-11 GB GB4761273A patent/GB1454085A/en not_active Expired
- 1973-10-11 IT IT53070/73A patent/IT994398B/en active
- 1973-10-11 FR FR7336308A patent/FR2203255B1/fr not_active Expired
- 1973-10-11 CA CA183,112A patent/CA1011862A/en not_active Expired
- 1973-10-11 CH CH1449673A patent/CH569366A5/xx not_active IP Right Cessation
- 1973-10-11 JP JP48114321A patent/JPS4994293A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS4994293A (en) | 1974-09-06 |
FR2203255B1 (en) | 1976-11-19 |
DE2350911A1 (en) | 1974-04-18 |
FR2203255A1 (en) | 1974-05-10 |
CA1011862A (en) | 1977-06-07 |
GB1454085A (en) | 1976-10-27 |
CH569366A5 (en) | 1975-11-14 |
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