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:
Mar. 27, 2007
Filed:
Aug. 28, 2003
Sung Q Lee, Daejon, KR;
Ki Bong Song, Daejon, KR;
Kang Ho Park, Daejon, KR;
Jun Ho Kim, Gyeongsangnam-do, KR;
Eun Kyoung Kim, Daejon, KR;
Kyi Hwan Park, Gwangju, KR;
Woo Sub Youm, Daejon, KR;
Sung Q Lee, Daejon, KR;
Ki Bong Song, Daejon, KR;
Kang Ho Park, Daejon, KR;
Jun Ho Kim, Gyeongsangnam-do, KR;
Eun Kyoung Kim, Daejon, KR;
Kyi Hwan Park, Gwangju, KR;
Woo Sub Youm, Daejon, KR;
Abstract
An apparatus capable of tracking a sample surface level in a z direction and oscillating a cantilever at resonant frequency by using a frequency separation scheme in non-contact mode and method thereof. The inventive apparatus includes a sensing unit for sensing a sample surface; a frequency transforming unit for transforming the sensed signal; a frequency combining unit for combining signals; and an actuating unit for actuating the sensing unit.