ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,388, issued on Oct. 21, was assigned to DISCO Corp. (Tokyo).
"Dividing method of workpiece" was invented by Yohei Masuda (Tokyo), Yoshinori Kakinuma (Tokyo), Makoto Saito (Tokyo) and Kazuki Sugiura (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tape is stuck to the front surface of a workpiece in such a manner that the direction in which the stretch rate becomes the lowest when a predetermined force is applied to the tape is non-parallel to each of multiple planned dividing lines extending in a lattice manner. In this case, each of the multiple planned dividing lines does not extend along the direction perpendicular to this direction. This ...