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:
Oct. 31, 2017
Filed:
Mar. 31, 2015
Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku, JP;
Kenji Shimada, Tokyo, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Chiyoda-ku, JP;
Abstract
A liquid semiconductor device cleaning composition used in a process of fabricating a semiconductor integrated circuit, for removing a hard mask or a dry etch residue while suppressing damage to a low-dielectric-constant interlayer dielectric film and cobalt or a cobalt alloy, where the liquid semiconductor device cleaning composition contains hydrogen peroxide at 10-30% by mass, potassium hydroxide at 0.005-0.7% by mass, aminopolymethylene phosphonic acid at 0.00001-0.01% by mass, at least one selected from amines and azoles at 0.001-5% by mass and water. A semiconductor device can be cleaned by bringing the liquid cleaning composition into contact with the semiconductor device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile