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US 6,642,084 B2Granted
Methods for forming aligned fuses disposed in an integrated circuit
AssigneeMicron Technology, Inc.
InventorsBryan C. Carson, Mark L. Hadzor, Lucien J. Bissey
Life of this patent
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Abstract
An integrated circuit includes a first conductive layer, an insulator layer disposed on the first conductive layer, and a second conductive layer disposed on the insulator layer. A first fuse is disposed in the first conductive layer and provides a first signal, and a second fuse is disposed in the second conductive layer in alignment with the first fuse and provides a second signal.
Claims17
A method, comprising the steps of:
- forming a first fuse;
- forming a second fuse that is aligned with and not electrically in parallel with the first fuse;
- and
- forming an insulator between the first and second fuses.
1 more element
A method, comprising the steps of:
- forming a first fuse having a first terminal coupled to a first node;
- and
- stacking a second fuse onto the first fuse, the second fuse having a first terminal coupled to a second node.
A method, comprising:
- forming a first fuse in a first conductive layer, the first fuse having first and second terminals;
- and
- forming a second fuse in a second conductive layer such that first and second terminals of the second fuse are respectively aligned with and unconnected to the first and second terminals of the first fuse.
A method, comprising:
- forming first, second, third, and fourth circuit nodes;
- forming a first fuse in a first conductive layer, the first fuse having first and second terminals;
- forming a second fuse in a second conductive layer such that the second fuse is aligned with the first fuse, the second fuse having first and second terminals;
- respectively coupling the first and second terminals of the first fuse to the first and second circuit nodes;
- and
- respectively coupling the first and second terminals of the second fuse to the third and fourth circuit nodes.
3 more elements
A method, comprising:
- forming a first conductive member having a midsection and first and second ends;
- forming a second conductive member having a midsection and first and second ends;
- aligning the midsections of the first and second conductive members in a same direction;
- and
- aligning one of the first and second ends of the second conductive member with the midsection of the first conductive member.
2 more elements
A method, comprising:
- forming first and second aligned fuses in an integrated circuit;
- configuring the first fuse to provide a first signal to first circuit within the integrated circuit;
- and
- configuring the second fuse to provide a second signal to the first circuit or to a second circuit within the integrated circuit.
1 more element
Dependencies are inferred from the claim text.