Patent Number: 6,801,469

Title: Method of providing voltage to a circuit

Abstract: As part of anti-fuse circuitry for a memory device, a preferred exemplary embodiment of the current invention provides a direct connection between an anti-fuse and a contact pad used to provide voltage to that anti-fuse. The contact pad also serves as a voltage source for at least one other part of the memory device. At least one circuit coupled to the anti-fuse is temporarily isolated from it in the event that a voltage present at the pad would damage the circuit or cause the circuit to improperly read the status of the anti-fuse. The contact pad is available during a probe stage of the in-process memory device, but once the device is packaged, access to that contact pad is prevented. At the back end of the production process, the anti-fuse may be accessed through a second pad, whose electrical communication with the anti-fuse is regulated.

Inventors: Cowles; Timothy B. (Boise, ID)

Assignee: Micron Technology, Inc.

International Classification: G11C 17/14 (20060101); G11C 17/16 (20060101); G11C 007/00 ()

Expiration Date: 10/05/2021