Patent · US Active

Segmented focal plane array architecture

US9918023B2 · kind B2 · utility

14Cited by
40References
24Claims
0Family size

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Inventors

Key dates

Filing dateDec 13, 2013
Grant dateMar 13, 2018
Priority date
Expiry dateMay 16, 2034

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10F39/809
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

Various techniques are provided for implementing a segmented focal plane array (FPA) of infrared sensors. In one example, a system includes a segmented FPA. The segmented FPA includes a top die having an array of infrared sensors (e.g., bolometers). The top die may also include a portion of a read-out integrated circuit (ROIC). The segmented FPA also includes a bottom die having at least a portion of the ROIC. The top and the bottom dies are electrically coupled via inter-die connections. Advantageously, the segmented FPA may be fabricated with a higher yield and a smaller footprint compared with conventional FPA architectures. Moreover, the segmented FPA may be fabricated using different semiconductor processes for each die.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.