Patent ID: 6625554
Filing Date: 2003-09-23
Classification: G01R

Abstract:
A magnetic field probe system for determining a magnetic field distribution of an integrated circuit inside an integrated circuit package, comprising:a measuring probe for measuring an induced voltage produced by an electromagnetic field of said integrated circuit at a height above said integrated circuit on a same order of magnitude as a distance between said integrated circuit's current carrying lines, said measuring probe comprising a first termination point coupled with a second termination point by an electronic circuit; a voltage measuring device for measuring said induced voltage; and a switch in which a first end is coupled to said measuring probe via said first and second termination points and a second end is coupled to said voltage measuring device and to ground, wherein when said switch is in a first position, said first termination point is coupled to said voltage measuring device and said second termination point is coupled to ground, and when said switch is in a second position, said first termination point is coupled to ground and said second termination point is coupled to said voltage measuring device.