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US 2003/0147188 A1Published application
ESD-protecting circuit and LSI using the same
AssigneeOki Electric Industry Co., Ltd.
InventorKatsuhiro Hisaka
Life of this patent
Estimating the term…
Abstract
An ESD-protecting circuit is connected between a terminal pad and an internal circuit formed in an LSI. The ESD-protecting circuit includes first and second conductive lines, connected in parallel to the terminal pad; first and second protecting elements, connected to the first and second conductive lines, respectively; and first and second resistive elements formed on the first and second conductive lines, respectively.
Claims30
An ESD-protecting circuit, connected between a terminal pad and an internal circuit formed in an LSI, comprising:
- first and second conductive lines, connected in parallel to the terminal pad;
- first and second protecting elements, connected to the first and second conductive lines, respectively;
- and
- first and second resistive elements formed on the first and second conductive lines, respectively.
1 more element
An LSI, comprising:
- an I/O terminal pad connected to an external circuit;
- an internal circuit, comprising an I/O buffer;
- and
- an ESD-protecting circuit, connected between the I/O terminal pad and I/O buffer, wherein
- the ESD-protecting circuit comprises:
- (1) first and second conductive lines, connected in parallel to the terminal pad;
- (2) first and second protecting elements, connected to the first and second conductive lines, respectively;
- and
- (3) first and second resistive elements formed on the first and second conductive lines, respectively.
6 more elements
An LSI, comprising:
- a power-supply terminal;
- a ground terminal;
- a power-supply line connected between the power-supply terminal and ground terminal;
- an internal circuit, connected to the power-supply line;
- and
- an ESD-protecting circuit connected on the power-supply line, wherein
- the ESD-protecting circuit comprises:
- (1) first and second conductive lines, connected in parallel to the terminal pad;
- (2) first and second protecting elements, connected to the first and second conductive lines, respectively;
- and
- (3) first and second resistive elements formed on the first and second conductive lines, respectively.
8 more elements
An LSI, comprising:
- an I/O terminal pad connected to an external circuit;
- a power-supply terminal;
- a ground terminal;
- a power-supply line connected between the power-supply terminal and ground terminal;
- an internal circuit, which comprises an I/O buffer and is connected to the power-supply line;
- a first ESD-protecting circuit, connected between the I/O terminal pad and I/O buffer;
- and
- a second ESD-protecting circuit connected on the power-supply line, wherein
- each of the first and second ESD-protecting circuit comprises:
- (1) first and second conductive lines, connected in parallel to the terminal pad;
- (2) first and second protecting elements, connected to the first and second conductive lines, respectively;
- and
- (3) first and second resistive elements formed on the first and second conductive lines, respectively.
10 more elements
Dependencies are inferred from the claim text.