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:
Jul. 01, 1997
Filed:
Nov. 27, 1991
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Abstract
A pellicle structure comprises a frame having a vertical through opening and a pellicle film spread on the upper the upper end of the opening of the frame. The pellicle film has a coating layer comprising a coating agent formed at least on the inner surface thereof, and a bonding portion for bonding the end edge of the frame to the peripheral edge of the pellicle film through an adhesive layer. The coating agent, in the bonding portion, is dissolved or dispersed in the adhesive so that the pellicle substrate is directly contacted by and bonded to the adhesive. In forming this pellicle structure, an adhesive, capable of dissolving therein the coating agent which comprises the coating layer, is coated on the top end of the opening of the frame; the adhesive is contacted with the coating layer on the surface of the pellicle substrate, whereby the coating agent dissolves in the adhesive allowing direct contact of the adhesive with the pellicle substrate; and the adhesive is then cured, whereby the pellicle substrate is directly bonded to the frame without interposition of the coating layer.