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Flux Guide/Tunnel Valve Structure With Conducting Contiguous Junction

IP.com Disclosure Number: IPCOM000014163D
Original Publication Date: 2000-Dec-01
Included in the Prior Art Database: 2003-Jun-19

Publishing Venue

IBM

Abstract

Disclosed is a new flux guide/tunnel valve structure which achieves conducting contiguous junction between the flux guide and the tunnel valve sensor. The conducting contiguous junction will provide higher flux coupling efficiency compared to the prior art insulating contiguous junction. In addition, the new structure provides straight side walls for the front flux guide implying better track width definition. The process sequence/steps for the new structure is: 1. Deposit bottom ferromagnetic shield. 2. Deposit insulation, flux guide, and insulation.