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. 17, 2009
Filed:
Sep. 21, 2007
Jin Cheol Kim, Gyunggi-do, KR;
Jun Rok OH, Seoul, KR;
Tae Kyoung Kim, Gyunggi-do, KR;
Sang Jun Yoon, Seoul, KR;
Hwa Young Lee, Gyunggi-do, KR;
Jin Cheol Kim, Gyunggi-do, KR;
Jun Rok Oh, Seoul, KR;
Tae Kyoung Kim, Gyunggi-do, KR;
Sang Jun Yoon, Seoul, KR;
Hwa Young Lee, Gyunggi-do, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon, KR;
Abstract
Disclosed is an insulating material for a printed circuit board, including a liquid crystal polyester resin and ceramic powder, thus exhibiting a temperature coefficient of capacitance ranging from −300 to +300 ppm/° C. in the temperature range of −55˜125° C. and a dielectric constant ranging from 5 to 40. This insulating material has superior dielectric properties, and a small change in dielectric constant depending on the change in temperature, and thus exhibits high reliability when applied to high-frequency circuits.