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. 20, 2006
Filed:
Sep. 19, 2003
Meng Ding, Mountain View, CA (US);
Kuok San Ho, Santa Clara, CA (US);
Tsann Lin, Saratoga, CA (US);
Huey-ming Tzeng, San Jose, CA (US);
Meng Ding, Mountain View, CA (US);
Kuok San Ho, Santa Clara, CA (US);
Tsann Lin, Saratoga, CA (US);
Huey-Ming Tzeng, San Jose, CA (US);
Hitachi Global Storage Technologies Netherland B.V., Amsterdam, NL;
Abstract
A method of forming an embedded read element is used in the fabrication process of a magnetic head assembly including write and read heads. In this method, three photolithographic patterning steps are applied for defining the designed height of the embedded read element, defining its designed width, and connecting it with conducting layers, respectively. An in-line lapping guide is also formed with a spacing in front of the embedded read element. In this method, two mechanical lapping steps are applied, one monitored by measuring the resistance of a parallel circuit of the embedded read element and the in-line lapping guide, and the other monitored by measuring the GMR response of the embedded read element.