Invention Grant
- Patent Title: Image sensors with a rolling shutter scanning mode and high dynamic range
-
Application No.: US15176342Application Date: 2016-06-08
-
Publication No.: US09936150B2Publication Date: 2018-04-03
- Inventor: Jaroslav Hynecek
- Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Applicant Address: US AZ Phoenix
- Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Current Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Current Assignee Address: US AZ Phoenix
- Agency: Treyz Law Group, P.C.
- Agent Joseph F. Guihan
- Main IPC: H04N5/335
- IPC: H04N5/335 ; H04N5/355 ; H01L27/146 ; H04N5/353 ; H04N5/349 ; H04N5/363

Abstract:
Imaging pixels may be operated in a rolling shutter scanning mode. Charge signal that is generated on a first chip may be capacitively coupled to signal processing circuits on a second chip. A capacitor may be placed in the signal path that provides signal coupling between the chips and stores overflow charge from pixels that have been exposed to high light level illumination. This enables high dynamic range using only a single charge integration time. The pixel may include an in-pixel negative feedback amplifier. The chip-to-chip electrical connections between the first and second chips may be realized at each pixel as a hybrid bond with a single bond per pixel. Image sensors fabricated using this technology may have small size pixels, high resolution, high dynamic range, and a single charge integration time.
Public/Granted literature
- US20170272667A1 IMAGE SENSORS WITH A ROLLING SHUTTER SCANNING MODE AND HIGH DYNAMIC RANGE Public/Granted day:2017-09-21
Information query