Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2004-12-06
2009-02-17
Yam, Stephen (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C250S214100, C257S459000, C257S466000, C330S308000
Reexamination Certificate
active
07491925
ABSTRACT:
The aim of the invention is to configure a photodetector (10) such that no disadvantages are created for processing low luminous intensities on detectors known in prior art, especially when monolithically integrating the evaluation electronics. Said aim is achieved by a photodetector for processing low luminous intensities, comprising a monolithically integrated transimpedance amplifier and monolithically integrated evaluation electronics. An actual photocell component (20) is assigned to the chip face onto which the light preferably falls. Electronic circuit components (30) are arranged on the opposite chip face. Electrical connections (40) between the photocell and the electronic circuit are provided with an extension in the direction running perpendicular to the chip normal.
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Bach Konrad
Eckoldt Uwe
Einbrodt Wolfgang
Hoelke Alexander
Stahl Karl-Ulrich
Duane Morris LLP
Melexis GmbH
X-FAB Semiconductor Foundries AG
Yam Stephen
LandOfFree
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