JPS5498115A - Solid image pickup unit - Google Patents
Solid image pickup unitInfo
- Publication number
- JPS5498115A JPS5498115A JP509078A JP509078A JPS5498115A JP S5498115 A JPS5498115 A JP S5498115A JP 509078 A JP509078 A JP 509078A JP 509078 A JP509078 A JP 509078A JP S5498115 A JPS5498115 A JP S5498115A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- potential
- diffusion layer
- lowered
- gate
- 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
- Solid State Image Pick-Up Elements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
PURPOSE: To improve the sensitivity for blue light by sensing light by the surface of the Si substrate under a transparent electrode in a solid image pickup unit.
CONSTITUTION: When voltage VG is applied to the gate of MOS transistor 9 in pulses, a depletion layer is formed on the surface of Si substrate under transparent electrode 4 becuase poly-Si gate 8 is connected to drain diffusion layer 7. Carrier is accumulated in the depletion layer by the light irradiated through transparent electrode 4. Since this carrier is flowed to source diffusion layer 6 and the potential of layer 6 is lowered, charge from drain diffusion layer 7 is flowed. Then, since the potential of layer 7 is lowered, the potential of transparnt electrode 4 is lowered to exhaust the carrier of the depletion layer. On a basis of the operation above, optical signals are accumulated as potential change components of drain diffusion layer 7, and signals can be taken out to the external by applying the voltage to gate 11 in pulses.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP509078A JPS5498115A (en) | 1978-01-19 | 1978-01-19 | Solid image pickup unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP509078A JPS5498115A (en) | 1978-01-19 | 1978-01-19 | Solid image pickup unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5498115A true JPS5498115A (en) | 1979-08-02 |
Family
ID=11601685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP509078A Pending JPS5498115A (en) | 1978-01-19 | 1978-01-19 | Solid image pickup unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5498115A (en) |
-
1978
- 1978-01-19 JP JP509078A patent/JPS5498115A/en active Pending
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