Patent ID: 11876044
Assignee: NANYA TECHNOLOGY CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for activating a backup unit of a memory through a fuse element, wherein the memory includes a normal memory cell and the backup unit, wherein the backup unit of the memory is activated when the normal memory cell is unavailable, comprising:
providing the fuse element connected to the backup unit of the memory, wherein the fuse element includes:
an active area, including:
a source region electrically connected to the backup unit; and
a drain region beside the source region,

a gate region disposed on the active area; and
a shallow trench isolation (STI) structure surrounding the active area,

applying a stress voltage on the drain region of the fuse element;
accumulating electrons in a portion of the STI structure adjacent to the active area; and
generating a conductive path through the drain region and the source region so that the fuse element is conductive; and
after generating the conductive path through the drain region and the source region, activating the backup unit through the fuse element which is conductive.