Patent ID: 9620154
Date: 2017-04-11
CPC Classifications: G11B

Claim:
1. A computer-implemented method comprising, by one or more processors in electronic communication with a digital measurement unit and an ambient temperature control unit, wherein said digital measurement unit is in electrical communication with a plurality of tunneling magnetoresistive sensors, wherein each of said plurality of tunneling magnetoresistive sensors comprises a tunnel barrier, wherein each of said plurality of tunneling magnetoresistive sensors is structured according to a geometry, said geometry comprising an area designated A wherein said ambient temperature control unit is configured for controlling an ambient temperature at said plurality of tunneling magnetoresistive sensors: dividing said plurality of tunneling magnetoresistive sensors into at least two test groups; assigning each of said at least two test groups a temperature parameter value T for each test group of said at least two test groups, said test group comprising two or more test group tunneling magnetoresistive sensors: fitting, based on said data set, a survival fraction of form:  versus N performing finite element analysis for said geometry to yield a temperature rise of said tunnel barrier versus V determining, based on said temperature rise, a thermal conductance κ determining a tunnel barrier temperature  wherein P fitting  with  wherein k  wherein Z is a charge or a metal of an oxide material of said tunnel barrier, wherein α is a lattice constant of said metal, wherein U denotes a fittable activation energy of said tunnel barrier, and wherein γ and τ returning an analytical form for a dielectric breakdown voltage for said geometry, said analytical form comprising values of β, τ