JPS5512792A - Voltage reference diode - Google Patents
Voltage reference diodeInfo
- Publication number
- JPS5512792A JPS5512792A JP8625478A JP8625478A JPS5512792A JP S5512792 A JPS5512792 A JP S5512792A JP 8625478 A JP8625478 A JP 8625478A JP 8625478 A JP8625478 A JP 8625478A JP S5512792 A JPS5512792 A JP S5512792A
- Authority
- JP
- Japan
- Prior art keywords
- junction
- diode
- substrate
- smaller
- enveloping
- 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
Abstract
PURPOSE: To reduce the noise draft by enveloping the periphery of P-N junction of a temperature compensation diode by a P-N junction having a smaller depth than the first-mentioned P-N junction.
CONSTITUTION: In the periphery of a P-N junction J3 of a temperature compensating forward diode, provided is a P-N junction J4 enveloping the junction J3 and having a smaller depth than the latter. By so doing, the difference of impurity concentration between the junction J3 in the bulk and the substrate is made smaller than that between the junction J4 exposed to the substrate surface and the substrate, so that the forward voltage in the juction J3 is smaller than the forward voltage of the junction J4. In consequence, the electric current can hardly flow in the surface region, and the electric current flows only through the PN junction J3 in the bulk. It is therefore possible to obtain at a high yield a voltage reference diode which has a small drift and which is less liable to suffer unstable factors at the boundary between the junction and the protective film.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8625478A JPS5512792A (en) | 1978-07-14 | 1978-07-14 | Voltage reference diode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8625478A JPS5512792A (en) | 1978-07-14 | 1978-07-14 | Voltage reference diode |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5512792A true JPS5512792A (en) | 1980-01-29 |
Family
ID=13881674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8625478A Pending JPS5512792A (en) | 1978-07-14 | 1978-07-14 | Voltage reference diode |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5512792A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6269686A (en) * | 1985-09-24 | 1987-03-30 | Rohm Co Ltd | Semiconductor device |
JPS6322753U (en) * | 1986-07-28 | 1988-02-15 | ||
JPH02185069A (en) * | 1988-12-02 | 1990-07-19 | Motorola Inc | Semiconductor device having high-energy stopping power and temperature-compensated stopping voltage |
US5233214A (en) * | 1989-09-14 | 1993-08-03 | Robert Bosch Gmbh | Controllable, temperature-compensated voltage limiter |
-
1978
- 1978-07-14 JP JP8625478A patent/JPS5512792A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6269686A (en) * | 1985-09-24 | 1987-03-30 | Rohm Co Ltd | Semiconductor device |
JPS6322753U (en) * | 1986-07-28 | 1988-02-15 | ||
JPH02185069A (en) * | 1988-12-02 | 1990-07-19 | Motorola Inc | Semiconductor device having high-energy stopping power and temperature-compensated stopping voltage |
US5233214A (en) * | 1989-09-14 | 1993-08-03 | Robert Bosch Gmbh | Controllable, temperature-compensated voltage limiter |
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