ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,512,352, issued on Dec. 30, was assigned to Beijing Tongmei Xtal Technology Co. Ltd. (Beijing).
"Ventilated puck" was invented by Wei Gao (Fremont, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ventilated puck is provided. The ventilated puck includes an upper box, a spider plate, and a lower box. In particular, the upper box is fitted on the lower box to form a hollow structure, in which the spider plate is disposed. A ventilation channel for communicating the hollow structure with an external environment is provided in the upper box, or in the lower box or at interface between the upper box and the lower box. The ventilated puck of the prese...