发明名称 |
CCD Imagers with multiplication register |
摘要 |
In a CCD imager 1, charge is accumulated in pixels of an image area 2 representative of the intensity of incident radiation and is subsequently transferred to a store section 3 and then on a row by row basis to an output register 4 by applying suitable drive pulses to electrodes 7 and 8. Signal charge in the output register 4 is transferred to a multiplication register 5 by drive pulses applied to electrodes 9 and 10 to give charge transfer in the direction shown by the arrows. One or more drive pulses applied to the electrodes of the multiplication register 5 are of sufficiently large amplitude to produce high field regions in the register element to cause signal multiplication by impact ionisation. This gives a low noise amplification of the signal charge, the multiplied signal charge being detected at charge detection circuit 6. <IMAGE> |
申请公布号 |
EP0866501(B1) |
申请公布日期 |
2004.12.15 |
申请号 |
EP19980301428 |
申请日期 |
1998.02.26 |
申请人 |
E2V TECHNOLOGIES (UK) LIMITED |
发明人 |
BURT, DAVID JAMES;BELL, RAYMOND THOMAS |
分类号 |
H01L27/148;H04N5/372;H04N5/376;(IPC1-7):H01L27/148 |
主分类号 |
H01L27/148 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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