US Patent Issued to GlobalWafers on March 17 for "Non-contact systems and methods for determining distance between silicon melt and reflector in a crystal puller" (Missouri Inventor)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,700, issued on March 17, was assigned to GlobalWafers Co. Ltd. (Hsinchu, Taiwan).

"Non-contact systems and methods for determining distance between silicon melt and reflector in a crystal puller" was invented by Richard Joseph Phillips (St. Peters, Mo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A measurement system includes a target object at least partially visible through an opening in a crystal puller. The crystal puller has a silicon melt in a crucible and a reflector defining a central passage through which a crystal is pulled. A detector array captures light through the opening. The detector array is directed to a surface of the silicon m...