Patent · US Active

Method of making a transducer head

US9142231B2 · kind B2 · utility

2Cited by

11References

13Claims

0Family size

Assignee

Seagate Technology LLC · US

Inventors

Yongjun Zhao · Beijing, CN
Lien Lee · Windom, US
Lijuan Zou · Eden Prairie, US
Mark Ostrowski · Lakeville, US

Key dates

Filing date	Mar 11, 2013
Grant date	Sep 22, 2015
Priority date	—
Expiry date	Mar 11, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49052
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method of making a transducer head disclosed herein includes depositing a spacer layer on an NFT layer of the transducer head, forming an etch stop layer on a spacer layer of a transducer, depositing a cladding layer on the etch stop layer, and milling the cladding layer at a sloped angle such that the milling stops at the etch stop layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.