Appeal No. 2005-0188
Application No. 09/949,541
Claim 1 is illustrative of the claimed invention, and it
reads as follows:
1. An integrated circuit trim resistor structure with on-
chip heaters, comprising:
providing a substrate with at least one isolation
structure;
a doped polysilicon trim resistor structure on said
isolation structure; and
at least one heating structure on said isolation
structure adjacent to said trim resistor structure and
separated from said trim resistor structure by a heat
conducting electrical insulator.
The references relied on by the examiner are:
Spraggins et al. (Spraggins) 5,466,484 Nov. 14, 1995
Singh et al. (Singh) US 2002/0008302 A1 Jan. 24, 2002
(effective filing date Apr. 26, 2000)
Claims 1, 3, 4, 9, 11 and 12 stand rejected under 35 U.S.C.
§ 103(a) as being unpatentable over Spraggins in view of Singh.
Reference is made to the supplemental brief, the reply brief
and the answer for the respective positions of the appellants and
the examiner.
OPINION
We have carefully considered the entire record before us,
and we will reverse the obviousness rejection of claims 1, 3, 4,
9, 11 and 12.
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