High density image sensor

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11309348
APP PUB NO 20210074758A1
SERIAL NO

16567210

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present disclosure relates to a CMOS image sensor having a doped isolation structure separating a photodiode and a pixel device, and an associated method of formation. In some embodiments, the CMOS image sensor has a doped isolation structure separating a photodiode and a pixel device. The photodiode is arranged within the substrate away from a front-side of the substrate. A pixel device is disposed at the front-side of the substrate overlying the photodiode and is separated from the photodiode by the doped isolation structure. Comparing to previous image sensor designs, where an upper portion of the photodiode is commonly arranged at a top surface of a front-side of the substrate, now the photodiode is arranged away from the top surface and leaves more room for pixel devices. Thus, a larger pixel device can be arranged in the sensing pixel, and short channel effect and noise level can be improved.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Yimin Hsinchu, TW 108 974
Sze, Jhy-Jyi Hsin-Chu, TW 133 526
Takahashi, Seiji Hsinchu, TW 153 1143
Wang, Chen-Jong Hsin-Chu, TW 120 1630
Yaung, Dun-Nian Taipei, TW 560 5970

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Oct 19, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Oct 19, 2029
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 19, 2033
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00