JPS5580378A - Preparation of luminous diode indicator - Google Patents
Preparation of luminous diode indicatorInfo
- Publication number
- JPS5580378A JPS5580378A JP15663578A JP15663578A JPS5580378A JP S5580378 A JPS5580378 A JP S5580378A JP 15663578 A JP15663578 A JP 15663578A JP 15663578 A JP15663578 A JP 15663578A JP S5580378 A JPS5580378 A JP S5580378A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- passage
- preparation
- deterioration
- lowering
- 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 prevent scraps of electrodes from encroaching in wafer and to prevent the lowering and deterioration of luminous efficiency.
CONSTITUTION: On the back of the formed LED wafer 2 of a pn-junction 1 an electrode 3 and an electrode 5 are provided leaving thereby on the surface a passage 4 of a cutter blade. After preparing a groove 6 deeper than the pn-junction 1 in the center of the passage, it is separated into LED 7. The element 7 is etched so as to remove strain and to fix the electrode surface between lead wires 8. A contact area is large enough because both sides of the element are covered with electrodes. According to said method a leakage current passage is not formed and therefore the lowering and deterioration of luminous efficiency can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15663578A JPS5580378A (en) | 1978-12-11 | 1978-12-11 | Preparation of luminous diode indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15663578A JPS5580378A (en) | 1978-12-11 | 1978-12-11 | Preparation of luminous diode indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5580378A true JPS5580378A (en) | 1980-06-17 |
Family
ID=15631971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15663578A Pending JPS5580378A (en) | 1978-12-11 | 1978-12-11 | Preparation of luminous diode indicator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5580378A (en) |
-
1978
- 1978-12-11 JP JP15663578A patent/JPS5580378A/en active Pending
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