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:
Jun. 13, 2023
Filed:
Aug. 31, 2021
Applicant:
Century Technology (Shenzhen) Corporation Limited, Shenzhen, CN;
Inventors:
Po-Liang Chen, New Taipei, TW;
Yung-Fu Lin, New Taipei, TW;
Hirohisa Tanaka, Neihu, TW;
Yasunori Shimada, Neihu, TW;
Assignee:
Century Technology (Shenzhen) Corporation Limited, Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/673 (2006.01); B65G 47/92 (2006.01); H01F 7/02 (2006.01); H01F 41/02 (2006.01); H01L 33/00 (2010.01);
U.S. Cl.
CPC ...
H01L 21/67336 (2013.01); B65G 47/92 (2013.01); H01F 7/02 (2013.01); H01F 41/0253 (2013.01); H01L 33/00 (2013.01);
Abstract
A method for making an adsorption device includes: providing and etching a substrate to form a plurality of receiving grooves spaced apart from each other; forming a magnetic film in each of the plurality of receiving grooves; and forming a magnet in each of the plurality of receiving grooves. Each receiving groove includes a bottom wall and a side wall coupling the bottom wall. The magnetic film covers the bottom wall and the side wall of each of receiving groove.