JPS5593276A - Semiconductor multiple wavelength light emissionous device - Google Patents
Semiconductor multiple wavelength light emissionous deviceInfo
- Publication number
- JPS5593276A JPS5593276A JP39279A JP39279A JPS5593276A JP S5593276 A JPS5593276 A JP S5593276A JP 39279 A JP39279 A JP 39279A JP 39279 A JP39279 A JP 39279A JP S5593276 A JPS5593276 A JP S5593276A
- Authority
- JP
- Japan
- Prior art keywords
- ingaasp
- layers
- wings
- electrodes
- inp
- 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.)
- Pending
Links
Landscapes
- Led Devices (AREA)
Abstract
PURPOSE: To take out light radiation of each LED from a single window, forming multi-layer of LEDs whose luminous oeak differs by degrees, on one semiconductor substrate.
CONSTITUTION: Based on an InP substrate, layers n+-InP 2-1∼2-4, p-InGaAsP 3-1∼3-4, n-InGaAsP 4-1∼4-4, p-InGaAsP 5-1∼5-4, InP high-resistance 6-1∼6-4 and p-layers 7-1∼7-4, as well as electrodes 8-1∼8-4 and 9-1∼9-4 are arranged in the given order, and the round luminous face 10 and wings 11 and 11' for taking out electrode are provided. Electrodes 8 are taken out from each wings 11 of respective layers 5, while electrodes 9 being taken out form each wings 11'. Concentration of layer 7 is selected to be in the middle of concentrations of layers 2 and 4. Constituent ratio of InGaAsP is one and the same in one unit. However, if constituent ratio is changed so that upper unit has broader band gap then the lower unit, the upper units do not absorb light radiated, thus the light radiation of wavelength λ1∼λ2 from the face 10 become possible.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP39279A JPS5593276A (en) | 1979-01-09 | 1979-01-09 | Semiconductor multiple wavelength light emissionous device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP39279A JPS5593276A (en) | 1979-01-09 | 1979-01-09 | Semiconductor multiple wavelength light emissionous device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5593276A true JPS5593276A (en) | 1980-07-15 |
Family
ID=11472524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP39279A Pending JPS5593276A (en) | 1979-01-09 | 1979-01-09 | Semiconductor multiple wavelength light emissionous device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5593276A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0717452A2 (en) * | 1994-12-12 | 1996-06-19 | Motorola, Inc. | Film carrier tape for semiconductor devices |
-
1979
- 1979-01-09 JP JP39279A patent/JPS5593276A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0717452A2 (en) * | 1994-12-12 | 1996-06-19 | Motorola, Inc. | Film carrier tape for semiconductor devices |
EP0717452A3 (en) * | 1994-12-12 | 1997-01-29 | Motorola Inc | Film carrier tape for semiconductor devices |
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