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:
Jun. 14, 2011
Filed:
Feb. 29, 2008
Guoqiang Zheng, Milpitas, CA (US);
Shoji Toyoda, Hong Kong, JP;
Ellis Cha, San Ramon, CA (US);
Zhu Feng, Pleasanton, CA (US);
Collins Lee, San Francisco, CA (US);
Guoqiang Zheng, Milpitas, CA (US);
Shoji Toyoda, Hong Kong, JP;
Ellis Cha, San Ramon, CA (US);
Zhu Feng, Pleasanton, CA (US);
Collins Lee, San Francisco, CA (US);
SAE Magnetics (HK) Ltd., Shatin, N.T., HK;
Abstract
A slider is formed with an ABS topography that eliminates the accumulation of lubricant swept from the surface of a rotating disk in an operating HDD. The topography includes air channeling grooves in which are formed backflow blocking elements that prevent the formation airflow patterns that would cause lubricant to be aspirated into the ABS topography of the slider and that create airflow patterns that sweep lubricant away from the ABS of the slider. The topography is first tested to make sure that the slider has the proper flying height and aerodynamic stability, then the backflow blocking elements are added to control the airflow, while maintaining the desired flying height and stability.