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US 2019/0154518 A1Published application
Semiconductor device and semiconductor system
AssigneeRenesas Electronics Corporation
InventorsKan TAKEUCHI, Shinya KONISHI, Fumio TSUCHIYA, Masaki SHIMADA
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Abstract
An object of the present invention is to provide a technique of duplexing monitor circuits in which a common cause failure can be eliminated. A semiconductor device has: a first monitor circuit monitoring that temperature or voltage of the semiconductor device is within a normal operation range; and a second monitor circuit monitoring normal operation of the first monitor circuit. The first and second monitor circuits generate information of temperature or voltage on the basis of different principles.
Claims13
A semiconductor device comprising:
- a first monitor circuit monitoring that temperature or voltage of the semiconductor device is within a normal operation range;
- and
- a second monitor circuit monitoring normal operation of the first monitor circuit,
- wherein the first and second monitor circuits generate information of temperature or voltage on the basis of different principles.
1 more element
A semiconductor system comprising:
- a semiconductor device;
- and
- a nonvolatile storage device,
- wherein the semiconductor device comprises:
- a first monitor circuit generating first information according to temperature or voltage of the semiconductor device;
- a second monitor circuit;
- a correction circuit generating correction information for correcting second information generated by the second monitor circuit to third information according to temperature or voltage of the semiconductor device in accordance with the first information, and stores it into the nonvolatile storage device;
- and
- a check circuit monitoring normal operation of the first monitor circuit on the basis of the first information of the first monitor circuit and the third information, and
- wherein the first and second monitor circuits generate the first information and the second information on the basis of different principles.
7 more elements
Dependencies are inferred from the claim text.