JPS5271976A - Semiconductor device - Google Patents
Semiconductor deviceInfo
- Publication number
- JPS5271976A JPS5271976A JP14799275A JP14799275A JPS5271976A JP S5271976 A JPS5271976 A JP S5271976A JP 14799275 A JP14799275 A JP 14799275A JP 14799275 A JP14799275 A JP 14799275A JP S5271976 A JPS5271976 A JP S5271976A
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor device
- pattems
- anodization
- letters
- identify
- 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
- Structure Of Printed Boards (AREA)
- Wire Bonding (AREA)
Abstract
PURPOSE: To identify the name, type, etc. of semiconductor devices by forming undulation pattems expressing symbols and letters through anodization of an Al film on the rear of a semiconductor substrate formed on its front surface with a wiring layer.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14799275A JPS5271976A (en) | 1975-12-11 | 1975-12-11 | Semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14799275A JPS5271976A (en) | 1975-12-11 | 1975-12-11 | Semiconductor device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5271976A true JPS5271976A (en) | 1977-06-15 |
Family
ID=15442697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14799275A Pending JPS5271976A (en) | 1975-12-11 | 1975-12-11 | Semiconductor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5271976A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6933041B2 (en) * | 1998-03-03 | 2005-08-23 | Acktar Ltd. | Method for producing high surface area foil electrodes |
-
1975
- 1975-12-11 JP JP14799275A patent/JPS5271976A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6933041B2 (en) * | 1998-03-03 | 2005-08-23 | Acktar Ltd. | Method for producing high surface area foil electrodes |
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