US Patent Issued to Western Digital Technologies on March 31 for "Method for treatment of a glass substrate with improved edge strength" (American, Malaysian Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,028, issued on March 31, was assigned to Western Digital Technologies Inc. (San Jose, Calif.).

"Method for treatment of a glass substrate with improved edge strength" was invented by Shoji Suzuki (San Jose, Calif.), Christopher David Brisko (San Jose, Calif.) and Hsiung Hsiung Ng (Kuching, Malaysia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A filamentation process uses ultrafast laser pulses to form a line of filaments or perforations in a glass material in sheet form. The glass material is then cleaved using mechanical or thermal stress to form a glass substrate with a planar doughnut shape having an inner circular edge and an outer circular e...