Appeal No. 1999-2464
Application No. 08/701,292
BACKGROUND
Appellants’ invention relates to a silicon structure which can be applied to a light
emitting device or solar battery. According to Appellants, the silicon materials of the
claimed invention provides excellent light absorption. Claims 1 and 12, which are
representative of the claimed invention, appear below:
1. Silicon having a structure comprising an aggregate of a plurality of
columnar silicon members mainly comprising silicon and having random
orientations,
the columnar silicon members being at least partially spaced from each other
whereby light reflected from one of the columnar silicon members can enter
another of the columnar silicon members.
12. A solar battery comprising a semiconductor layer for generating electron-
hole pairs by light absorption, wherein the semiconductor layer comprises
silicon having a structure comprising an aggregate of a plurality of columnar
silicon members mainly comprising silicon and having random orientations,
the columnar silicon members being at least partially spaced from each other
whereby light reflected from one of the columnar silicon members can enter
another of the columnar silicon members.
CITED PRIOR ART
As evidence of unpatentability, the Examiner relies on the following reference:
Maruyama et al. (Maruyama) 4,433,202 Feb. 21, 1984
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