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:
Jan. 11, 2005
Filed:
Apr. 30, 2001
Ladislav R. Pust, Savage, MN (US);
Youping Mei, Eden Prairie, MN (US);
Sunita Gangopadhyay, Chanhassen, MN (US);
Jumna P. Ramdular, Brooklyn Park, MN (US);
Mallika Kamarajugadda, Edina, MN (US);
Ladislav R. Pust, Savage, MN (US);
Youping Mei, Eden Prairie, MN (US);
Sunita Gangopadhyay, Chanhassen, MN (US);
Jumna P. Ramdular, Brooklyn Park, MN (US);
Mallika Kamarajugadda, Edina, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A head for a magnetic drive that includes a substrate with a thermal expansion rate CTE. A transducer in the head has a bond to the substrate and has a transducer thermal expansion rate CTEthat is greater than CTEA restraint layer in the substrate has a bond to one side of the transducer and has a first restraint layer thermal expansion rate CTEthat is lower than CTEThe restraint layer restrains protrusion of the transducer beyond the substrate at higher operating temperatures.