Invention Grant
US09129874B1 Light sensor having IR cut interference filter with color filter integrated on-chip
有权
具有红外线截止干涉滤光片的光传感器，集成片上滤色片
- Patent Title: Light sensor having IR cut interference filter with color filter integrated on-chip
- Patent Title (中): 具有红外线截止干涉滤光片的光传感器，集成片上滤色片
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Application No.: US14461561Application Date: 2014-08-18
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Publication No.: US09129874B1Publication Date: 2015-09-08
- Inventor: Zhihai Wang , Nicole D. Kerness , Stanley Barnett
- Applicant: Maxim Integrated Products, Inc.
- Applicant Address: US CA San Jose
- Assignee: Maxim Integrated Products, Inc.
- Current Assignee: Maxim Integrated Products, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Advent, LLP
- Main IPC: H01L31/0232
- IPC: H01L31/0232 ; H01L27/146
Abstract:
Techniques are described to furnish a light sensor that includes a patterned IR interference filter integrated with a patterned color pass filter. In one or more implementations, the light sensor includes a substrate having a surface. An IR interference filter configured to block infrared light is disposed over the surface of the substrate. The light sensor also includes one or more color pass filters placed above or below the IR interference filter. The color pass filters are configured to filter visible light to pass light in a limited spectrum of wavelengths to the one or more photodetectors.
Public/Granted literature
- US3118435A Crank case breather Public/Granted day:1964-01-21
Information query
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