Patent ID: 8594967

Claim:
A method for measuring a temperature rise induced by bias current/bias voltage in a magnetic tunnel junction, the method comprising: (a) applying an external time-changing magnetic field to the magnetic tunnel junction; (b) measuring different first outer pin flip field values under different temperature values; (c1) calculating a plurality of delta temperature values according to the different temperature values; (c2) calculating a plurality of delta first outer pin flip field values according to the different first outer pin flip field values; (c3) correlating the delta temperature values with the delta first outer pin flip field values to form a first equation; (d) measuring different second outer pin flip field values under different bias current/bias voltage values; (e) correlating the different bias current/bias voltage values with the measured different second outer pin flip field values; and (f) correlating temperature values and bias current/bias voltage values according to the results produced by (c3) and (e).