Semiconductor device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsYuki Okamoto, Yoshiyuki Kurokawa
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Abstract
An object of the present invention is to provide a semiconductor device including an oscillator circuit including a circuit between inverters. In the circuit, a sum of the length (a1) of a wiring path between a terminal A and a terminal C1 and a length (b1) of a wiring path between a terminal D1 and a terminal B is substantially equal to a sum of the length (a2) of a wiring path between the terminal A and a terminal C2 and the length (b2) of a wiring path between a terminal D2 and the terminal B.
Claims20
A semiconductor device comprising an oscillator circuit comprising:
- first to n-th inverters;
- a first circuit configured to store first data;
- and
- a second circuit configured to store second data,
- wherein n is an odd number of 3 or more,
- wherein a first terminal of the first circuit is electrically connected to an output terminal of the i-th inverter,
- wherein i is one of 1 to n−1,
- wherein a second terminal of the first circuit is electrically connected to an input terminal of the i+1-th inverter,
- wherein a first terminal of the second circuit is electrically connected to the output terminal of the i-th inverter,
- wherein a second terminal of the second circuit is electrically connected to the input terminal of the i+1-th inverter, and
- wherein a sum of a length of a wiring path between the output terminal of the i-th inverter and the first terminal of the first circuit and a length of a wiring path between the second terminal of the first circuit and the input terminal of the i+1-th inverter is substantially equal to a sum of a length of a wiring path between the output terminal of the i-th inverter and the first terminal of the second circuit and a length of a wiring path between the second terminal of the second circuit and the input terminal of the i+1-th inverter.
A semiconductor device comprising an oscillator circuit comprising:
- a first inverter;
- a second inverter;
- a third inverter;
- a first circuit configured to store first data;
- and
- a second circuit configured to store second data,
- wherein a first terminal of the first circuit is electrically connected to an output terminal of the first inverter,
- wherein a second terminal of the first circuit is electrically connected to an input terminal of the second inverter,
- wherein a first terminal of the second circuit is electrically connected to the output terminal of the first inverter,
- wherein a second terminal of the second circuit is electrically connected to the input terminal of the second inverter, and
- wherein a sum of a length of a wiring path between the output terminal of the first inverter and the first terminal of the first circuit and a length of a wiring path between the second terminal of the first circuit and the input terminal of the second inverter is substantially equal to a sum of a length of a wiring path between the output terminal of the first inverter and the first terminal of the second circuit and a length of a wiring path between the second terminal of the second circuit and the input terminal of the second inverter.
Dependencies are inferred from the claim text.