High fill-factor sensor with reduced coupling

US7615731B2 · kind B2 · utility

Assignee

• Carestream Health, Inc. · US

Inventors

• Gregory N. Heiler · Hilton, US
• Timothy J. Tredwell · Fairport, US
• Mark D. Bedzyk · Pittsford, US
• Roger S. Kerr · Brockport, US
• Yuriy Vygranenko · Waterloo, CA
• Denis Striakhilev · Waterloo, CA
• Yongtaek Hong · Seoul, KR
• Jackson Chi-Sun Lai · Waterloo, CA
• Arokia Nathan · Waterloo, CA

Key dates

• Filing date: Sep 14, 2006
• Grant date: Nov 10, 2009
• Expiry date: Sep 14, 2026

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10F39/189

Abstract

A photosensor array includes data and scan lines (124, 148), circuitry of each data line/scan line pair formed in a backplane (110) on a substrate (102). On a first electrode scan line (148) a switching element (112) responds to a scan signal, connecting a first terminal (106) to a second terminal (108). A front plane (120) has sensing elements (122) indicating a measure of a received stimulus and including a charge collection electrode (130). An insulating layer (140) disposed between the backplane (110) and the front plane (120) contains at least a first via (136) connecting the first terminal (108) of the switching element (112) in the backplane (110) to a charge collection electrode (130) of the sensing element (122) in the front plane (120). A second via (126) connects between the second terminal (108) of the switching element (112) and the data line (124).