Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal – Electromagnetic or particle radiation
Reexamination Certificate
2006-06-19
2008-12-16
Pert, Evan (Department: 2826)
Active solid-state devices (e.g., transistors, solid-state diode
Responsive to non-electrical signal
Electromagnetic or particle radiation
C257S248000, C257SE31122, C438S758000, C438S778000, C438S144000
Reexamination Certificate
active
07466002
ABSTRACT:
A detector configuration determines the direction of illumination incident on a photosensitive device. Multiple mask layers include holes which form an interlayer optical path through which radiation reaches a photodetector. The interlayer optical path provides a selected nominal maximum signal angle and the detector senses when radiation is received at or near that angle. In one embodiment, three holes in three metallization layers provide an arbitrarily narrow interlayer optical path with improved angular detection relative to that provided by two holes. An illumination direction-sensing array may use multiple instances of the detector configuration. The detector configuration may provide enhanced utility and economy by being adapted to use only those fabrication steps used for fabricating other primary circuits on an IC.
REFERENCES:
patent: 4857721 (1989-08-01), Dunavan et al.
patent: 5264910 (1993-11-01), Hill
patent: 5995229 (1999-11-01), Omi
patent: 6274862 (2001-08-01), Rieger
patent: 6316814 (2001-11-01), Nagata et al.
patent: 6642506 (2003-11-01), Nahum et al.
patent: 6875974 (2005-04-01), Muesch et al.
patent: 7214920 (2007-05-01), Gazeley
patent: 2001/0026322 (2001-10-01), Takahashi et al.
patent: 2002/0053635 (2002-05-01), Schroter et al.
patent: 2004/0159774 (2004-08-01), Mishina et al.
patent: 2004/0173737 (2004-09-01), Shimomura et al.
patent: 2005/0017158 (2005-01-01), Kojima
patent: 0 747 719 (1996-12-01), None
U.S. Appl. No. 11/396,368, filed Mar. 31, 2006, Sesko.
Christensen O'Connor Johnson & Kindness PLLC
Mitutoyo Corporation
Pert Evan
Sandvik Ben P
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