Abstract: Provided is a apparatus for testing reliability of a semiconductor sample including: a sample mounting part for mounting the semiconductor sample on an upper center part thereof, and mounting components having an evaluation circuit board at an upper peripheral part thereof; a heating block formed to have a tip shape and mounted on a lower part of the semiconductor sample to maintain a test temperature; a cooling block separated from the heating block and surrounding the heating block to cool the temperature of the components; and a fixing block for raising and lowering the semiconductor sample.

Abstract: Provided are a planar optical waveguide and a method of fabricating the same which is adapted to a planar optical component and an optical component for use in a optical communication. The planar optical waveguide includes: a lower cladding layer formed on a substrate, a core formed on the lower cladding layer, a dielectric layer covering the core, and an upper cladding layer formed on the lower cladding layer having the dielectric layer. By forming the dielectric layer having a low refractive index between the core and the clad, a difference of refractive indices between the core and the clad increases so that light is densely focused into the core, thereby forming a single mode having a strong energy to minimize a propagation loss.

Abstract: Provided are a planar optical waveguide and a method of fabricating the same which is adapted to a planar optical component and an optical component for use in a optical communication. The planar optical waveguide includes: a lower cladding layer formed on a substrate, a core formed on the lower cladding layer, a dielectric layer covering the core, and an upper cladding layer formed on the lower cladding layer having the dielectric layer. By forming the dielectric layer having a low refractive index between the core and the clad, a difference of refractive indices between the core and the clad increases so that light is densely focused into the core, thereby forming a single mode having a strong energy to minimize a propagation loss.