Abstract:
In a high frequency circuit property measurement method, prior to property measurements of a high frequency circuit with RF measurement probe heads, RF measurement probe heads are calibrated using a calibration pattern comprising a signal line having a characteristic impedance and extending on a dielectric substrate, a first GND pad having one end disposed close to and at an interval from a first end of the signal line, a second GND pad having one end disposed close to and at an interval from a second end of the signal line, and a conductor electrically coupling the first GND pad to the second GND pad.
Abstract:
A semiconductor integrated circuit device and a printed wired board which self-align to each other in an exact and precise manner. The semiconductor integrated circuit device has conductive bumps. The printed wired board has conductive recessed members at positions corresponding to the conductive bumps. Each of the conductive bumps is fitted into the corresponding conductive recessed member so that the printed wired board is aligned with the semiconductor integrated circuit device.