Methods and apparatus are described relating to an electronic device which includes at least one configurable resistive element. Each such configurable resistive element includes at least one multi-layer thin film element exhibiting giant magnetoresistance. The resistance value of each configurable resistive...http://www.google.com/patents/US6469927?utm_source=gb-gplus-sharePatent US6469927 - Magnetoresistive trimming of GMR circuits
