| US 7,525,083 B2 | ||
| Radiation detector with an epitaxially grown semiconductor body | ||
| Arndt Jaeger, Regensburg (Germany); and Peter Stauβ, Pettendorf (Germany) | ||
| Assigned to Osram Opto Semiconductors GmbH, Regensburg (Germany) | ||
| Filed on Sep. 29, 2005, as Appl. No. 11/240,987. | ||
| Claims priority of application No. 10 2004 047 645 (DE), filed on Sep. 30, 2004; and application No. 10 2005 001 280 (DE), filed on Jan. 11, 2005. | ||
| Prior Publication US 2007/0241260 A1, Oct. 18, 2007 | ||
| Int. Cl. H01J 40/14 (2006.01); H01L 27/00 (2006.01) | ||
| U.S. Cl. 250—226 [250/208.1; 250/239] | 27 Claims |
| 1. A radiation detector comprising:
an epitaxially grown semiconductor body comprising a III-V semiconductor material and having a radiation entry side; and
a plurality of detector elements each having an active region provided for radiation reception and for signal generation,
the plurality of detector elements being monolithically integrated into the semiconductor body, wherein a signal generated
in a first detector element of the plurality of detector elements can be tapped off separately from a signal generated in
a second detector element of the plurality of detector elements,
each of the active regions of the first detector element and the second detector element is arranged between a barrier layer
and a counter-barrier layer, and the barrier layer and the counter-barrier layer are of different conduction types,
the first detector element and the second detector element are each assigned a contact layer and a counter-contact layer,
and the contact layer and the counter-contact layer are monolithically integrated into the semiconductor body,
at least one of the contact layer and the counter-contact layer is arranged between two adjacent ones of the plurality of
detector elements, and the contact layer and the counter-contact layer are of different conduction types,
the conduction types in the semiconductor body between two adjacent active regions, are identical,
the first detector element is partly transmissive to visible radiation, and
the visible radiation that passes through the first detector element generates a signal in the second detector element.
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