Circuit for blowing an electrically blowable fuse in SOI technologies
First Claim
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1. An electrically blowable fuse circuit comprising:
- a fuse which may be placed in a condition to be blown;
a first transistor having a body, a source, a drain, and a gate, said source connected to one end of said fuse and said drain connected to ground, said first transistor including a controllable parasitic device in said body; and
a second transistor connected to said parasitic device such that when said second transistor is turned on, said parasitic device turns on said first transistor, allowing said fuse to be blown when said fuse is placed in a condition to be blown.
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Abstract
An electrically blowable fuse circuit having a fuse which may be placed in a condition to be blown. The circuit includes a first transistor having a body, a source, a drain, and a gate. The source is connected to one end of the fuse and the drain is connected to ground. The first transistor further includes a controllable parasitic device in its body. A second transistor is connected to the parasitic device such that when the second transistor is turned on, the parasitic device turns on the first transistor, allowing the fuse to be blown when the fuse is placed in a condition to be blown.
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Citations
12 Claims
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1. An electrically blowable fuse circuit comprising:
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a fuse which may be placed in a condition to be blown;
a first transistor having a body, a source, a drain, and a gate, said source connected to one end of said fuse and said drain connected to ground, said first transistor including a controllable parasitic device in said body; and
a second transistor connected to said parasitic device such that when said second transistor is turned on, said parasitic device turns on said first transistor, allowing said fuse to be blown when said fuse is placed in a condition to be blown. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for blowing an electrically blowable fuse, said method comprising:
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connecting the source of a first transistor having a body, a source, a drain, a gate, and a controllable parasitic device in said body, to one end of said fuse, and connecting the drain to ground;
connecting a second transistor to said parasitic device such that when said second transistor is turned on, said parasitic device turns on said first transistor;
placing a voltage on the other end of said fuse, said voltage being sufficient to blow said fuse when said first transistor is turned on; and
turning on said second transistor. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification