Abstract: A method of manufacturing a semiconductor device includes: preparing a semiconductor device comprising a first substrate, a second substrate disposed on the first substrate, inner terminals disposed between the first and second substrates, and a filling material disposed between the first and second substrates and between the inner terminals; loading the semiconductor device on a stage; irradiating an electromagnetic wave to the filling material in a direction parallel to a top surface of the first substrate by an electromagnetic wave generating unit; and scanning the filling material as the electromagnetic wave generating unit is moved in relation to the stage in a direction along a first side of the semiconductor device while maintaining the irradiating direction of the electromagnetic wave.

Abstract: A method of manufacturing a semiconductor device includes: preparing a semiconductor device comprising a first substrate, a second substrate disposed on the first substrate, inner terminals disposed between the first and second substrates, and a filling material disposed between the first and second substrates and between the inner terminals; loading the semiconductor device on a stage; irradiating an electromagnetic wave to the filling material in a direction parallel to a top surface of the first substrate by an electromagnetic wave generating unit; and scanning the filling material as the electromagnetic wave generating unit is moved in relation to the stage in a direction along a first side of the semiconductor device while maintaining the irradiating direction of the electromagnetic wave.

Abstract: Disclosed are a wavelength division multiplexing-passive optical network (WDM-PON) system using self-injection locking, an optical line terminal thereof, and a data transmission method. A wavelength division multiplexing-passive optical network (WDM-PON) system according to an aspect of the invention includes an optical line terminal. The optical line terminal includes a reflector that is installed at the input side of a multiplexer and reflects an optical signal having a predetermined wavelength, and a light source that generates a multimode optical signal to transmit the generated multimode optical signal to the multiplexer through the reflector, receives reflected light by the reflector, and oscillates at a wavelength of the received reflected light.