ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,767, issued on Oct. 28, was assigned to SHIN-ETSU HANDOTAI Co. LTD. (Tokyo).
"Single crystal manufacturing apparatus" was invented by Keisuke Mihara (Nishigo-mura, Japan), Kazuya Yanase (Nishigo-mura, Japan), Nobuaki Mitamura (Nishigo-mura, Japan) and Kiyotaka Takano (Annaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A single crystal manufacturing including: main chamber; pulling chamber; thermal shield member provided so as to face a silicon melt; rectifying cylinder provided on the thermal shield member so as to enclose the silicon single crystal being pulled up; cooling cylinder provided so as to encircle the silicon single crystal bei...