The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2021
Filed:
Aug. 09, 2016
Hamamatsu Photonics K.k., Hamamatsu, JP;
Takafumi Ogiwara, Hamamatsu, JP;
Yuta Kondoh, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Abstract
Provided is a laser processing method including a first step of forming a first modified region along a cutting line by converging laser light on an object having a surface and a back surface with the back surface as an incident surface and moving a first converging point along the cutting line set to pass between an effective region and an ineffective region adjacent to each other while maintaining a distance between a surface and the first converging point at a first distance, and a second step of forming a second modified region along the cutting line by converging the laser light on the object with the back surface as the incident surface and moving a second converging point along the cutting line while maintaining a distance between the surface and the second converging point at a second distance larger than the first distance.