Abstract:
Disclosed are a light scanning unit and a method of synchronizing the scanning operation of such light scanning unit. The light scanning unit includes a deflection, mirror that is driven to oscillate so as to deflect and scan a light beam in a bidirectional scanning path. The synchronization, of a scanning operation may be made at least in part in consideration of the direction of flow of the current that is supplied to drive the deflection mirror to oscillate.
Abstract:
Semiconductor packages, module substrates and semiconductor package modules having the same are provided. The semiconductor package module includes a module substrate provided with a plurality of signal wires on an upper surface thereof, a package substrate disposed on the module substrate, a semiconductor chip disposed on one surface of the package substrate, and a plurality of external connection terminals disposed on another surface of the package substrate.