Appeal 2006-2150
Application 09/995,927
compositions such that a period of one tensile strained layer and one
compressively strained layer exerts substantially no shear force on a
neighbouring structure. This appealed subject matter is adequately
represented by independent claim 1 which reads as follows:
1. A photovoltaic device comprising:
a plurality of quantum wells and
a plurality of barriers, said barriers alternating with said quantum
wells, one of said plurality of quantum wells and said plurality of barriers
comprised of tensile strained layers and the other of said plurality of
quantum wells and said plurality of barriers comprised of compressively
strained layers, said tensile strained layers and said compressively strained
layers having compositions such that a period of one tensile strained layer
and one compressively strained layer exerts substantially no shear force on a
neighbouring structure.
The references set forth below are relied upon by the Examiner in the
§ 102 and § 103 rejections before us:
Freundlich US 5,851,310 Dec. 22, 1998
Freundlich US 6,150,604 Nov. 21, 2000
Ekins-Daukes et al., Strain-balanced GaAsP/InGaAs quantum well solar
cells, 75 Applied Physics Letters no. 26, 4195-97 (1999)
Claims 1-6, 12, 13, 42, and 43 are rejected under 35 U.S.C. § 102(b)
as being anticipated by Ekins-Daukes.
Under 35 U.S.C. § 103(a):
Claims 7-11, 14, and 15 are rejected as being obvious over
Ekins-Daukes in view of Freundlich ‘310;
Claims 16 and 17 are rejected over Ekins-Daukes in view of
Freundlich ‘604;
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