301 patents
Utility
SiGe photodiode for crosstalk reduction
16 Jan 24
SiGe photodiode for crosstalk reduction.
Heesoo Kang, Bill Phan, Seong Yeol Mun
Filed: 9 Jun 21
Utility
Image sensor with elevated floating diffusion
9 Jan 24
A pixel cell with an elevated floating diffusion region is formed to reduce diffusion leakage (e.g., gate induced drain leakage, junction leakage, etc.).
Seong Yeol Mun, Heesoo Kang
Filed: 2 Jul 20
Utility
Thin, multi-lens, optical fingerprint sensor adapted to image through cell phone displays
9 Jan 24
A multiple-lens optical fingerprint reader for reading fingerprints through a display has a spacer; and multiple microlenses with concave and convex surfaces in a microlens array, each microlens of multiple lenses focuses light arriving at that microlens from a finger adjacent the display through the spacer forms an image on associated photosensors on a photosensor array of an image sensor integrated circuit.
Jau-Jan Deng, Kuang-Ju Wang, Chun-Jen Wei
Filed: 27 Oct 21
Utility
Circuit and method for image artifact reduction in high-density, high-pixel-count, image sensor with phase detection autofocus
9 Jan 24
In an embodiment, a method of reducing resistance-capacitance delay along photodiode transfer lines of an image sensor includes forking a plurality of photodiode transfer lines each into a plurality of sublines coupled together and to a first decoder-driver at a first end of each subline; and distributing selection transistors of a plurality of multiple-photodiode cells among the plurality of sublines.
Selcuk Sen, Liang Zuo, Rui Wang, Xuelian Liu, Min Qu, Hiroaki Ebihara
Filed: 3 Feb 22
Utility
Signal-charge estimator and method
9 Jan 24
A method for estimating a signal charge collected by a pixel of an image sensor includes determining an average bias that depends on the pixel's floating-diffusion dark current and pixel-sampling period.
Boyd Fowler, Andreas Suess
Filed: 20 Jul 22
Utility
Devices and methods for obtaining three-dimensional shape information using polarization and time-of-flight detection pixel cells
9 Jan 24
In some embodiments, an imaging system is provided.
Badrinath Padmanabhan, Boyd Fowler, Alireza Bonakdar, Richard Mann
Filed: 8 May 20
Utility
Flare-suppressing image sensor
2 Jan 24
Embodiments disclosed herein reduce petal flare.
Gang Chen, Qin Wang, Chao Niu
Filed: 2 Aug 21
Utility
Shallow trench isolation (STI) structure for CMOS image sensor
2 Jan 24
A shallow trench isolation (STI) structure and method of fabrication includes forming a shallow trench isolation (STI) structure having a polygonal shaped cross-section in a semiconductor substrate of an image sensor includes a two-step etching process.
Seong Yeol Mun, Heesoo Kang, Xiang Zhang
Filed: 13 May 21
Utility
Electrical isolation in pixel-array substrates using combination of doped semiconductor guard rings and overlapping isolation trenches
2 Jan 24
Yuanwei Zheng, Sing-Chung Hu, Gang Chen, Dyson Tai, Lindsay Grant
Filed: 18 Jun 20
Utility
Light-trapping image sensors
2 Jan 24
A light-trapping image sensor includes a pixel array and a lens array.
Alireza Bonakdar, Zhiqiang Lin, Lindsay Grant
Filed: 30 Jan 20
Utility
Pixel, associated image sensor, and method
12 Dec 23
A pixel includes a semiconductor substrate, a low-κ dielectric, and a photodiode region in the semiconductor substrate.
Hui Zang, Cunyu Yang, Gang Chen
Filed: 20 Nov 19
Utility
Optical fingerprint sensor with spoof detection and associated method
12 Dec 23
An optical fingerprint sensor with spoof detection includes a plurality of lenses, an image sensor including a pixel array that includes a plurality of first photodiodes and a plurality of second photodiodes, and at least one apertured baffle-layer having a plurality of aperture stops, wherein each second photodiode is configured to detect light having passed through a lens and at least one aperture stop not aligned with the lens along an optical axis.
Paul Wickboldt, Jau-Jan Deng, Shih-Hsin Hsu
Filed: 8 Sep 21
Utility
HV driver for rolling clamp in image sensor
12 Dec 23
An imaging system includes a pixel array with pixel circuits, each including a photodiode, a floating diffusion, a source follower transistor, and a row select transistor.
Lei Zou, Sindre Mikkelsen
Filed: 28 Apr 23
Utility
CMOS image sensor pixel for high dynamic range capturing
28 Nov 23
An image sensor element includes a transfer transistor TX, a LOFIC select transistor LF, a photodiode PD, and a first overflow path OFP.
Yoshiharu Kudo
Filed: 27 Dec 21
Utility
CMOS image sensor with LED flickering reduction and low color cross-talk
7 Nov 23
CMOS image sensor with LED flickering reduction and low color cross-talk are disclosed.
Duli Mao, Bill Phan, Seong Yeol Mun, Yuanliang Liu, Alireza Bonakdar, Chengming Liu, Zhiqiang Lin
Filed: 17 May 21
Utility
Pixel-array substrate
7 Nov 23
A pixel-array substrate includes (i) a semiconductor substrate including a photodiode region and a floating diffusion region, and (ii) a vertical-transfer-gate structure that includes a trench and a gate electrode.
Hui Zang, Gang Chen
Filed: 1 Apr 21
Utility
Pointed-trench pixel-array substrate and associated fabrication method
7 Nov 23
A pointed-trench pixel-array substrate includes a floating diffusion region and a photodiode region formed in a semiconductor substrate.
Hui Zang, Gang Chen
Filed: 26 Oct 20
Utility
Pixel-array substrate and associated method
10 Oct 23
A pixel-array substrate includes a floating diffusion region and a first photodiode formed in a semiconductor substrate.
Hui Zang, Gang Chen
Filed: 26 Oct 20
Utility
Endoscope imager and associated method
10 Oct 23
An endoscope imager includes a system-in-package and a specularly reflective surface.
Yi-Fan Lin, Wei-Ping Chen, Jau-Jan Deng, Suganda Jutamulia
Filed: 21 Sep 16
Utility
Method for passivating full front-side deep trench isolation structure
26 Sep 23
A method for forming a deep trench isolation structure for a CMOS image sensor includes providing a trench that extends from a first side toward a second side of a semiconductor substrate.
Shiyu Sun
Filed: 23 Dec 19