The performance, thermal and power management system is configured to perform DVFS calibration, temperature compensation adjustment, aging calibration, and DC offset calibration in an IC. Methods related to the conversion of the tractor are also disclosed. A noise characteristic of the subset of Doppler data is calculated, and a signal characteristic of the subset of Doppler data is identified. Either device may be contained in an industry standard 7-PIN electro-absorption modulated laser package. The invisible information recording part is, for example, a magnetic recording layer, a write-once optical recording layer or an integrated circuit memory, in which information can be recorded and erased. Multiple via plugs having ends coupled to the TaSiN layer are disposed in the interlayer insulating layer.