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:
Feb. 02, 2016
Filed:
Dec. 26, 2014
Industrial Technology Research Institute, Hsinchu, TW;
Shang-Chih Wang, Taichung, TW;
Shen Tsao, Hsinchu, TW;
Yu-Tsung Chiu, Taipei, TW;
Chun-Ti Chen, Hsinchu, TW;
Yu-Yang Su, New Taipei, TW;
Mu-Hsi Sung, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A method of manufacturing a metal foil with microcracks includes placing a metal foil between a first material sheet and a second material sheet and then rolling them to form a plurality of microcracks in the metal foil. The microcracks are penetrating, and a sidewall of each of the microcracks is an irregular rough surface. Two ends of each of the microcracks are acute angles. A sound-absorbing structure includes at least one metal foil and a base plate kept at a distance from the metal foil, wherein at least one resonant cavity air layer is formed between the metal foil and the base plate by the distance, and the metal foil has microcracks.