Abstract: Provided are a method and apparatus for bonding an element, which has a transparency with respect to UV light, to a substrate. The method includes forming an aluminum layer on a surface of the substrate, disposing the element on the aluminum layer, and bonding the element to the aluminum layer by applying pressure on the element toward the aluminum layer and irradiating UV light on a bonding area between the element and the aluminum layer. The apparatus includes a holder, a pressurizing plate installed at the bottom of the holder to apply pressure on the element toward the substrate and formed of a material having a transparency to UV light, a UV light lamp which is installed in the inner space of the holder, and a collimating lens which is positioned between the UV light lamp and the pressurizing plate and collimates UV light emitted from the UV light lamp.

Abstract: An optical coupling device for coupling light to a core of an optical waveguide device. The optical coupling device is connected to the core of the optical waveguide device at a first end and convex at a second end opposite the first. The optical coupling device includes a waveguide connecting the first and second ends of the optical coupling device, for light transmission, and a cladding surrounding the waveguide.

Abstract: A compression bonding method includes patterning a metal bonding film in predetermined shapes on a substrate; and disposing a bonded element above the metal bonding film and applying heat to the substrate and pressure to the bonded element, thereby bonding the bonded element to the substrate having the metal bonding film. Since the compression bonding method allows bonded elements having various shapes and sizes to be bonded to a substrate at a low temperature and pressure, manufacturing is simplified, and the compression bonding method can be applied to various sealing and packaging processes.

Abstract: An optical coupling device for coupling light to a core of an optical waveguide device. The optical coupling device is connected to the core of the optical waveguide device at a first end and convex at a second end opposite the first. The optical coupling device includes a waveguide connecting the first and second ends of the optical coupling device, for light transmission, and a cladding surrounding the waveguide.

Abstract: Provided are a method and apparatus for bonding an element, which has a transparency with respect to UV light, to a substrate. The method includes forming an aluminum layer on a surface of the substrate, disposing the element on the aluminum layer, and bonding the element to the aluminum layer by applying pressure on the element toward the aluminum layer and irradiating UV light on a bonding area between the element and the aluminum layer. The apparatus includes a holder, a pressurizing plate installed at the bottom of the holder to apply pressure on the element toward the substrate and formed of a material having a transparency to UV light, a UV light lamp which is installed in the inner space of the holder, and a collimating lens which is positioned between the UV light lamp and the pressurizing plate and collimates UV light emitted from the UV light lamp.