Wheatstone bridge containing bridge elements, consisting of a spin-valve system and a method for producing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 19, 2005
Grant Date -
Feb 5, 2004
app pub date -
Dec 9, 2002
filing date -
Jun 9, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a Wheatstone bridge containing bridge elements that are connected in a conventional manner and consisting of a spin-valve system, in addition to a method for producing the same. The aim of the invention is to produce a Wheatstone bridge, in which respective half-bridges lying adjacent to one another have a respective non-parallel bias magnetisation direction. To achieve this, the respective bridge elements that are not adjacent (1, 3 or 2, 4) are provided with a doping of implantable ions in quantities of between 1.10.sup.12 and 5.10.sup.16 atoms/cm2 beneath the pinned ferromagnetic layer of a GMR- or TMR-spin-valve layer system. During the bombardment of selected bridge areas (1, 3) or surface areas, which are not provided with a covering (5), with a low dose of low-energy ions, whose strengths are sufficiently great to enable the is ions to penetrate the pinned ferromagnetic layer, all surface areas or bridge elements (1, 2, 3, 4) are exposed to a homogeneous, targeted magnetic field of sufficient strength.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully