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US 7,126,836 B2Granted
Semiconductor device, system device using it, and manufacturing method of a semiconductor device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorYoshiyuki Tanaka
Life of this patent
Estimating the term…
Abstract
To reduce the size and the power consumption of a semiconductor device. A first circuit having a prescribed circuit function is provided. A second circuit which can be connected to the first circuit externally gives the first circuit a non-always-used particular function so that the first circuit can perform the particular function.
Claims3
A semiconductor device, comprising:
- a first circuit having a prescribed circuit function;
- wherein a second circuit is formed so as to be able to be connected externally to the first circuit so as to give the first circuit a non-always-used particular function and to thereby allow the first circuit to perform the particular function;
- the first circuit comprises a redundant circuit that is provided with wiring for forming prescribed logic blocks in the first circuit, and is configured in such a manner that its circuit function is determined by external redundancy setting;
- and
- the particular function includes a circuit for setting the redundant circuit.
2 more elements
A system device, comprising:
- a first device having a first circuit that provides a prescribed circuit function;
- and
- a second circuit electrically connected to the first circuit of the first device, the system device;
- wherein the second circuit gives the first circuit a non-always-used particular function and to thereby allow the first circuit to perform the particular function;
- each of the first device and the second device comprises an exchange circuit for serially supplying or receiving control signals for giving the particular function and a register for storing control signals for giving the particular function;
- and
- signals are serially exchanged between the first device and the second device, whereby the particular function is given to the first device.
4 more elements
Dependencies are inferred from the claim text.