Abstract: The present invention relates to a heat sink structure and a manufacturing method thereof, in which a plurality of heat radiation fin parts, which is configured to radiate heat, is fixed to a heat radiation surface of a heat sink main body part by laser welding, such that thicknesses of and intervals between the plurality of heat radiation fin parts may be minimized, heat dissipation performance may be improved, a weight may be greatly reduced, and production lead time and manufacturing costs may be significantly reduced by manufacturing only the heat sink main body part by casting.

Abstract: A home appliance includes an electrical equipment compartment disposed in an upper portion of the home appliance, and including an upper side that is open, an electrical equipment compartment cover to cover the open upper side of the electrical equipment compartment, and including a speaker hole, a microphone accommodating portion which protrudes upward from an upper side of the electrical equipment compartment cover and including an accommodating space and a front portion that includes microphone holes laterally spaced apart from each other and which face toward a front of the home appliance, a microphone unit including a printed circuit board (PCB) disposed in the accommodation space behind the microphone holes and including microphone chips mounted on the PCB, and a speaker unit disposed in the electrical equipment compartment to correspond to the speaker hole.

Abstract: Embodiments of the present invention relate to a biodegradable scaffold for replacing tissue or inducing tissue regeneration and a preparation method thereof, wherein the scaffold comprises at least one woven silk tube layer and a collagen layer inside the tube layer. The scaffold is excellent in terms of tissue regeneration and mechanical properties and causes little or no immune response after implantation. Thus, the scaffold can be effectively used as a matrix for the regeneration of ligaments and tendons and the repair of injured muscles.

Abstract: The present invention provides ink-jet printing ink for organic semiconductors, and, more particularly, provides ink-jet printing ink for organic semiconductors, which can be used to form a uniform crystalline thin film. The ink-jet printing ink of the present invention includes a mixed solvent composed of a first solvent and a second solvent having a higher boiling point and lower surface tension than the first solvent, thus forming a uniform crystalline thin film in a volatilization process. Further, the present invention provides a circular organic thin film transistor having a high field-effect mobility of about 0.12 cm2V1S?1.

Abstract: Embodiments of the present invention relate to a biodegradable scaffold for replacing tissue or inducing tissue regeneration and a preparation method thereof, wherein the scaffold comprises at least one woven silk tube layer and a collagen layer inside the tube layer. The scaffold is excellent in terms of tissue regeneration and mechanical properties and causes little or no immune response after implantation. Thus, the scaffold can be effectively used as a matrix for the regeneration of ligaments and tendons and the repair of injured muscles.

Abstract: The present invention provides ink-jet printing ink for organic semiconductors, and, more particularly, provides ink-jet printing ink for organic semiconductors, which can be used to form a uniform crystalline thin film The ink-jet printing ink of the present invention includes a mixed solvent composed of a first solvent and a second solvent having a higher boiling point and lower surface tension than the first solvent, thus forming a uniform crystalline thin film in a volatilization process. Further, the present invention provides a circular organic thin film transistor having a high field-effect mobility of about 0.12 cm2V1S?1.