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:
May. 22, 2012
Filed:
Jan. 29, 2009
Akihiko Nakamura, Kawasaki, JP;
Junichi Katsuragawa, Kawasaki, JP;
Yasumasa Iwata, Kawasaki, JP;
Tokyo Ohka Kogyo Co., Ltd., Kawasaki-Shi, JP;
Abstract
A treatment liquid permeation unit comprises: at least one vibration unit; and a vibration transmission unit for transmitting a vibration from the vibration unit. The vibration transmission unit is positioned between an adhesive with which a wafer is combined to a supporting plate or an adhesive adhered to a surface of the wafer and the vibration unit. A vibration from the vibration unit is transmitted via the vibration transmission unit. This promotes the treatment liquid for dissolving the adhesive to permeate the adhesive to which the treatment liquid is supplied. Therefore, the treatment liquid can more uniformly permeate the adhesive in a shorter time. This allows the treatment liquid for dissolving the adhesive to permeate the adhesive with which the wafer is combined to the supporting plate or to permeate the adhesive adhered to the surface of the wafer in a shorter time.