292 patents
Page 5 of 15
Utility
Low Power Static Random-access Memory
8 Dec 22
A low power SRAM (static RAM) for an image sensor includes a voltage generation circuit for providing a positive supply voltage VP and a negative supply VN, wherein VDD>Vp>Vn>Vgnd; a plurality of memory cells coupled to a respective plurality of column sense lines in a pixel array, the plurality of memory cells receiving differential inputs dp and dn; and a Gray counter coupled to switchably couple VP and VN to the differential inputs dp and dn of the plurality of memory cells.
Robert Johansson
Filed: 7 Jun 21
Utility
Stack Chip Air Gap Heat Insulator
8 Dec 22
Image sensors include a pixel die that is stacked on a logic die.
Sing-Chung Hu
Filed: 15 Aug 22
Utility
Image Sensor with Three Readout Approach for Phase Detection Autofocus and Image Sensing Pixels
8 Dec 22
An imaging device includes a plurality of photodiodes arranged in a photodiode array to generate charge in response to incident light.
Chengcheng Xu, Rui Wang, Wei Deng, Chun-Sheng Yang, Xueqing Wang
Filed: 8 Jun 21
Utility
Uniform Threshold Voltage Non-planar Transistors
24 Nov 22
Transistors having nonplanar electron channels in the channel width plane have one or more features that cause the different parts of the nonplanar electron channel to turn on at substantially the same threshold voltage.
Hui Zang, Gang Chen
Filed: 20 May 21
Utility
Pyramid-shaped Transistors
24 Nov 22
Transistors include a pyramid-shaped gate trench defined by a triangular shape or a trapezoidal shape in a channel width plane and a trapezoidal shape in a channel length plane.
Hui Zang, Gang Chen
Filed: 20 May 21
Utility
Uniform Threshold Voltage Non-planar Transistors
24 Nov 22
Transistors having nonplanar electron channels in the channel width plane have one or more features that cause the different parts of the nonplanar electron channel to turn on at substantially the same threshold voltage.
Hui Zang, Gang Chen
Filed: 20 May 21
Utility
Shallow Trench Isolation (Sti) Structure for Cmos Image Sensor
17 Nov 22
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
Crosstalk-suppressing Image Sensor
17 Nov 22
A crosstalk-suppressing image sensor includes a semiconductor substrate, an opaque layer, and a spectral filter.
Qin WANG, Chin Poh PANG
Filed: 17 May 21
Utility
Cmos Image Sensor with Led Flickering Reduction and Low Color Cross-talk
17 Nov 22
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
Process to Release Silicon Stress In Forming Cmos Image Sensor
10 Nov 22
Process to release Silicon stress in forming CMOS image sensor.
Yuanliang Liu, Hui Zang
Filed: 4 May 21
Utility
Optical Fingerprint Sensor for LCD Panel
3 Nov 22
An optical fingerprint sensor (OFPS) for use with a liquid-crystal display (LCD) panel having a backlight module is positioned under the backlight module and captures an image of a fingerprint sensing area on the LCD panel through an aperture in both a reflector and a metal shield of the backlight module.
Tsung-Wei WAN, Wei-Ping CHEN
Filed: 28 Apr 21
Utility
Pixel Layout with Photodiode Region Partially Surrounding Circuitry
3 Nov 22
An image sensor comprises a first photodiode region and circuitry.
Hui Zang, Yuanliang Liu, Keiji Mabuchi, Gang Chen, Bill Phan, Duli Mao, Takeshi Takeda
Filed: 28 Apr 21
Utility
Cmos Image Sensor with Multiple Sensitivities for High Dynamic Range Imaging and Led Flicker Mitigation
3 Nov 22
CMOS image sensor with multiple sensitivities for high dynamic range imaging and LED flicker mitigation.
Chengming Liu, Zhiqiang Lin, Duli Mao, Lingtao Jiang
Filed: 29 Apr 21
Utility
Dual Floating Diffusion Transistor with Vertical Gate Structure for Image Sensor
13 Oct 22
A pixel circuit includes a photodiode and a floating diffusion disposed in a semiconductor substrate.
Hui Zang, Gang Chen
Filed: 13 Apr 21
Utility
Pixel-array Substrate
6 Oct 22
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
Metal Grid Structure Integrated with Deep Trench Isolation Structure
6 Oct 22
A high k passivation layer, an anti-reflective coating layer, and a buffer layer are disposed over semiconductor substrate including photodiodes formed therein.
Seong Yeol Mun, Yibo Zhu, Keiji Mabuchi
Filed: 30 Mar 21
Utility
Uneven-trench Pixel Cell and Fabrication Method
6 Oct 22
An uneven-trench pixel cell includes a semiconductor substrate that includes a floating diffusion region, a photodiode region, and, between a front surface and a back surface: a first sidewall surface, a shallow bottom surface, a second sidewall surface, and a deep bottom surface.
Hui ZANG, Gang CHEN
Filed: 1 Apr 21
Utility
Current Steering Ramp Compensation Scheme and Digital Circuit Implementation
6 Oct 22
A ramp generator includes a plurality of switched current sources coupled in parallel between a resistor and ground.
Tao Sun
Filed: 30 Mar 21
Utility
Motion Detection System and Method
22 Sep 22
A motion-detection method includes for a motion-detection region in a first image of a scene, (i) determining a respective first pixel-value gradient at each of a plurality of pixel-coordinates within the motion-detection region, and (ii) determining a first feature-descriptor value as a function of the first pixel-value gradients and position vectors defined by the plurality of pixel-coordinates.
Hitoshi Watanabe
Filed: 22 Mar 22
Utility
Tilted Transfer Gate for Advanced Cmos Image Sensor
1 Sep 22
A pixel circuit includes a trench etched into a front side surface of a semiconductor substrate.
Qin Wang
Filed: 26 Feb 21