Patent ID: 7459956
Filing Date: 2008-12-02
Classification: G11C,H01C,H01G,H01L

Abstract:
1. A circuit for device trimming, the circuit comprising: at least one reference device to be trimmed having a reference electrical parameter; at least one trimming device to be coupled with the reference device for forming a trimmed reference device providing an altered reference electrical parameter based on a combination of the reference device and the trimming device; at least one electrical fuse based control module for controlling whether the trimming device is to be coupled with the reference device based on a state of the electrical fuse; and a comparison module for comparing an electrical parameter of a selected device against the altered electrical parameter provided by the trimmed reference device, wherein the reference device and the trimming device are reference and trimming resistors, wherein the trimmed reference device is the trimmed reference resistor, and wherein the electrical parameter is resistance, and wherein the selected device is an electrical fuse.