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:
Nov. 06, 2007
Filed:
May. 01, 2006
Jin Kyu Lee, Seoul, KR;
Dong Woo Yoo, Hwaseong-si, KR;
Seung Jae Yang, Jeonju-si, KR;
Kook Heon Char, Seoul, KR;
Joo Hyeon Park, Ulsan Metropolitan, KR;
Jin Kyu Lee, Seoul, KR;
Dong Woo Yoo, Hwaseong-si, KR;
Seung Jae Yang, Jeonju-si, KR;
Kook Heon Char, Seoul, KR;
Joo Hyeon Park, Ulsan Metropolitan, KR;
Seoul National University Industry Foundation, Seoul, KR;
Abstract
The present invention provides norbornene-based copolymers for which one monomer is at least selected from a group consisting of norbornene and dicyclopentadiene, and the other from norbornene-based comonomers of Formula 1 shown below: In Formula 1, R, Rand a are defined in this specification. The present invention provides insulating elements for multi-chip packages and antireflection films for the exposure process of semiconductor fabrication using said norbornene-based copolymers. Norbornene-based copolymers according to the present invention have low dielectric constant as well as high thermal stability and excellent solubility to various organic solvents.