ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,283, issued on Oct. 21, was assigned to X-Celeprint Ltd. (Dublin).

"Micro-device structures with etch holes" was invented by Pierluigi Rubino (Cork, Ireland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A micro-device structure comprises a source substrate having a sacrificial layer comprising a sacrificial portion adjacent to an anchor portion, a micro-device disposed completely over the sacrificial portion, the micro-device having a top side opposite the sacrificial portion and a bottom side adjacent to the sacrificial portion and comprising an etch hole that extends through the micro-device from the top side to the bottom side, and a tether that...