Electrostatic protection circuit comprising plurality of protective elements
First Claim
1. A semiconductor device comprising, a first power supply wiring, a second power supply wiring, a first, a second and a third protective elements arranged in parallel, a first connecting wiring connecting in common one ends of said first, said second and said third protective elements, a second connecting wiring connecting the other ends of said first, said second and said third protective elements to said second power supply wiring, and a third connecting wiring connecting said first connecting wiring to said first power supply wiring, where said third connecting wiring has a resistance higher than that of said first connecting wiring.
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Abstract
A semiconductor device according to this invention comprises a first power supply (Vcc) wiring, a second power supply (Gnd) wiring, a first, a second and a third protective elements (3-1, 3-2 and 3-3), a first connecting wiring which connects in common one ends of the first, the second and the third protective elements, a second connecting wiring which connects the other ends of the first, the second and the third protective elements, and a third connecting wiring which connects the first connecting wiring and the first power supply wiring. The third connecting wiring has a resistance which is higher than that of the first connecting wiring.
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Citations
3 Claims
- 1. A semiconductor device comprising, a first power supply wiring, a second power supply wiring, a first, a second and a third protective elements arranged in parallel, a first connecting wiring connecting in common one ends of said first, said second and said third protective elements, a second connecting wiring connecting the other ends of said first, said second and said third protective elements to said second power supply wiring, and a third connecting wiring connecting said first connecting wiring to said first power supply wiring, where said third connecting wiring has a resistance higher than that of said first connecting wiring.
Specification