Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal – Electromagnetic or particle radiation
Patent
1994-11-30
1998-06-16
Saadat, Mahshid D.
Active solid-state devices (e.g., transistors, solid-state diode
Responsive to non-electrical signal
Electromagnetic or particle radiation
257185, 257186, 257187, 257444, H01L 31107, H01L 31072
Patent
active
057675600
ABSTRACT:
A photoelectric conversion device including: a photoelectric conversion portion having a light absorbing layer disposed between charge injection inhibition layers and having a predetermined forbidden band width Eg.sub.1, and a carrier multiplication portion including a single or a plurality of inclined band gap layers, the inclined band gap layer including a minimum forbidden band width Eg.sub.2 and a maximum forbidden band width Eg.sub.3 which are disposed to be in contact with each other to form a hetero junction and having, at the two ends thereof, forbidden band widths Eg.sub.4 which holds a relationship Eg.sub.2 <Eg.sub.4 <Eg.sub.3 in such a manner that the forbidden band width is continuously changed from the two forbidden band widths Eg.sub.2 and Eg.sub.3 to the forbidden band width Eg.sub.4, and the energy step in a conductive band of the hetero junction portion is larger than the energy step in a valence electron band, wherein at least the minimum forbidden band width Eg.sub.2 of portions which form the hetero junction is made of a high density p-type semiconductor.
REFERENCES:
patent: 4476477 (1984-10-01), Capasso et al.
patent: 4791469 (1988-12-01), Ohmi et al.
patent: 4886977 (1989-12-01), Gofuku et al.
patent: 4933731 (1990-06-01), Kimura
patent: 5019887 (1991-05-01), Niwa et al.
patent: 5084747 (1992-01-01), Miyawaki
patent: 5155351 (1992-10-01), Yamanobe et al.
Sze, Physics of Semiconductor Devices, 1981, p. 122.
Ripamonti et al., "Realization of a Staircase Photodiode: Towards a Solid-State Photomultiplier", 2107a Nuclear Instruments & Methods in Physics Research A, A288 (Mar. 1, 1990), pp. 99-103.
Canon Kabushiki Kaisha
Saadat Mahshid D.
Tang Alice W.
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