METHOD AND STRUCTURE FOR TESTING AND CALIBRATING MAGNETIC FIELD SENSING DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jul 14, 2011
app pub date -
Jan 8, 2010
filing date -
Jan 8, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method of sensing a magnetic field including at least one magnetoresistive sensing element (100) in a circuit (101) includes supplying (702) a first plurality of currents to a stabilization line (116) disposed adjacent the magnetoresistive sensing element (100), applying (704) a second plurality of currents to a self test line (120) disposed adjacent the magnetic tunnel junction (100), one each of the first plurality of currents being supplied during one each of the second plurality of currents. Values sensed by the magnetic tunnel junction sensing element (100) in response to the supplying (702) of the first plurality of currents and the applying (704) of the second plurality of currents are sampled (706) and the sensitivity of the magnetic tunnel junction sensor (100) and electrical and magnetic offset are determined (708) from the sampled values. The temperature coefficient of offset may also be determined.
First Claim
Family
International Classification(s)
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