Appeal No. 1998-1097
Application No. 08/557,484
The claimed invention relates to a circuit arrangement
for reducing noise and eliminating cross-talk in a
semiconductor integrated circuit which includes a MIS (metal-
insulator silicon) capacitor. First and second capacitors are
connected in series between a substrate terminal and the MIS
capacitor, with a power supply connected between the first and
second capacitors. The power supply acts to control the
potential between the first and second capacitors to prevent a
digital signal transmitted to the substrate from entering a
separate circuit connected with the MIS capacitor.
Claim 1 is illustrative of the invention and reads as
follows:
1. A semiconductor circuit comprising:
a substrate terminal;
a first capacitor connected to said substrate terminal;
a second capacitor connected in series to said first
capacitor;
an MIS capacitor connected in series to said second
capacitor;
a connector terminal connected between said first
capacitor and said second capacitor; and
a reference potential-generating source for controlling
said connector terminal to an arbitrary potential connected to
the connector terminal.
2
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