Sparsely-bonded CMOS hybrid imager

US9105548B2 · kind B2 · utility

Assignee

• CALIFORNIA INSTITUTE OF TECHNOLOGY · US

Inventors

• Thomas J. Cunningham · Pasadena, US
• Bruce R. Hancock · Altadena, US
• Chao Sun · Shanghai, CN
• Todd J. Jones · Altadena, US
• Matthew R. Dickie · Altadena, US
• Shouleh Nikzad · Valencia, US
• Michael E. Hoenk · Pasadena, US
• Christopher J. Wrigley · La Cañada Flintridge, US
• Kenneth W. Newton · Southside, US
• Bedabrata Pain · Los Angeles, US

Key dates

• Filing date: Jun 22, 2012
• Grant date: Aug 11, 2015
• Expiry date: Jan 19, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10F39/014
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A method and device for imaging or detecting electromagnetic radiation is provided. A device structure includes a first chip interconnected with a second chip. The first chip includes a detector array, wherein the detector array comprises a plurality of light sensors and one or more transistors. The second chip includes a Read Out Integrated Circuit (ROIC) that reads out, via the transistors, a signal produced by the light sensors. A number of interconnects between the ROIC and the detector array can be less than one per light sensor or pixel.