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:
Apr. 19, 2011
Filed:
Feb. 08, 2007
Feng-yu Yang, Hsinchu County, TW;
Mee-yu Hsu, Kaohsiung, TW;
Shu-hua Chan, Miaoli County, TW;
Yu-rung Peng, Taoyuan County, TW;
Yu-shen Mai, Kaohsiung, TW;
Wei-yang Chou, Kaohsiung County, TW;
Feng-Yu Yang, Hsinchu County, TW;
Mee-Yu Hsu, Kaohsiung, TW;
Shu-Hua Chan, Miaoli County, TW;
Yu-Rung Peng, Taoyuan County, TW;
Yu-Shen Mai, Kaohsiung, TW;
Wei-Yang Chou, Kaohsiung County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A mononuclear star-branched polymer dielectric material having a repeat unit of the formula (I):A-B  (I)wherein, A represents a multifunctional center having a functionality and a functional group with 'n' arms; n is an integer greater than 2. B represents a hydrolyzed or partially hydrolyzed compound of the formula (II): wherein, X represents H or CH; R represents H, alkyl or is selected from a group consisting of acetoxyl, t-butyl, t-butyldimethyl silyl, acid labile groups and acid stable groups; 'a' is an integer from 1 to 5; y and z are molar ratio and are the numbers satisfying y+z=1, 0<y≦1 and 0≦z<1.