Germanium based focal plane array for the short infrared spectral regime

Light detecting structures comprising a Si base having a pyramidal shape with a wide incoming light-facing pyramid bottom and a narrower pyramid top and a Ge photodiode formed on the Si pyramid top, wherein the Ge photodiode is operable to detect light in the short wavelength infrared range, and met...

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Bibliographische Detailangaben
Hauptverfasser: Kapach, Omer, Bakal, Avraham, Levy, Uriel
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Light detecting structures comprising a Si base having a pyramidal shape with a wide incoming light-facing pyramid bottom and a narrower pyramid top and a Ge photodiode formed on the Si pyramid top, wherein the Ge photodiode is operable to detect light in the short wavelength infrared range, and methods for forming such structures. A light detecting structure as above may be repeated spatially and fabricated in the form of a focal plane array of Ge photodetectors on silicon.