ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,442, issued on Dec. 2, was assigned to UNITED MICROELECTRONICS CORP. (Hsinchu, Taiwan).
"Adjustable capacitor device and method for adjusting capacitance value" was invented by Shih-Yuan Liu (Kaohsiung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An adjustable capacitor device and a method for adjusting a capacitance value are provided. The adjustable capacitor device includes a first variable resistor, a first comparator coupled between the first variable resistor and a first node, a first capacitor, a second capacitor, a first transistor coupled between the first node, the first capacitor and the second capacitor, and a second transistor ...