Appeal No. 94-3365
Application 07/759,571
The mixed-crystal or crystalline chemical compound includes a
particularly formed Si-Ge film or CoSi . See specification,
2
pages 6 and 7, examples 1 and 2. The resulting composition is
said to be useful for electronic, electrooptic or optical
components. See specification, page 3, lines 4-5 in conjunction
with claim 1.
Claim 1 is representative of the subject matter on appeal
and reads as follows:
1. A method of making a crystalline element for an
electronic, electrooptic or optical component, comprising:
(a) providing a crystalline substrate having a buried
amorphous layer formed therein and a monocrystalline layer on
said amorphous layer and separated from said substrate by said
amorphous layer; and
(b) transforming said monocrystalline layer into a mixed-
crystal structure or a crystalline chemical compound, whereby
said amorphous layer is interposed between said substrate and
said structure or compound.
PRIOR ART
As evidence of obviousness, the examiner relied on the
following references:
Maeguchi 4,463,492 Aug. 7, 1984
Mao et al (Mao) 4,902,642 Feb. 20, 1990
(filed Aug. 24, 1988)
Ishizaka et al. (Ishizaka) 5,047,111 Sep. 10, 1991
(filed Oct. 16, 1987)
3
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