ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,217,801, issued on Feb. 4, was assigned to Micron Technology Inc. (Boise, Idaho).

"Bias voltage schemes during pre-programming and programming phases" was invented by Vinh Q. Diep (Hayward, Calif.), Yingda Dong (Los Altos, Calif.) and Ching-Huang Lu (Fremont, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Control logic can perform operations including obtaining, for each dummy wordline of a set of dummy wordlines, a respective set of step-up voltage parameters, wherein each set of step-up voltage parameters includes a step ratio corresponding to the dummy wordline, and causing a bias voltage with respect to each dummy wordline of the set of dummy ...