Claims
- 1. A charge-to-voltage converter of a floating diffusion output type for producing a signal voltage by injecting signal charge packets transferred from a charge transfer region into a floating diffusion region via an output gate, said converter comprising:a precharge drain region supplied with a reset voltage; a floating diffusion region; a plurality of diffusion regions formed between said floating diffusion region and said precharge drain region, only one of said diffusion regions being directly adjacent said floating diffusion region; first and second channel regions formed between adjacent ones of said diffusion regions; a first precharge gate electrode formed over said first channel region; a second precharge gate electrode formed over said second channel region; and the charge-to-voltage conversion factor being selectively changed in response to gate voltages selectively applied to said first and second precharge gate electrodes and wherein said floating diffusion region is connected only to the output gate, said first precharge gate and an output terminal.
Priority Claims (1)
Number |
Date |
Country |
Kind |
4-082707 |
Mar 1992 |
JP |
|
Parent Case Info
This is a continuation, of application Ser. No. 08/566,476 filed Dec. 4, 1995 now abandoned which is a continuation of Ser. No. 08/323,052 filed Oct. 12, 1994 now abandoned which is a continuation of Ser. No. 08/026,017 filed Mar. 4, 1993, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4939560 |
Narabu et al. |
Jul 1990 |
|
4993053 |
Itoh et al. |
Feb 1991 |
|
5306932 |
Miwada |
Apr 1994 |
|
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0 192 142 |
Feb 1986 |
EP |
0 321 953 |
Dec 1988 |
EP |
1 116 398 |
Feb 1983 |
GB |
56-36162 |
Apr 1981 |
JP |
59-52877 |
Sep 1982 |
JP |
58-130564 |
Aug 1983 |
JP |
60-050671 |
Aug 1985 |
JP |
62-49653 |
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62-245670 |
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JP |
Continuations (3)
|
Number |
Date |
Country |
Parent |
08/566476 |
Dec 1995 |
US |
Child |
08/789519 |
|
US |
Parent |
08/323052 |
Oct 1994 |
US |
Child |
08/566476 |
|
US |
Parent |
08/026017 |
Mar 1993 |
US |
Child |
08/323052 |
|
US |