Abstract: An intervertebral fusion device includes a structural ceramic body. The structural ceramic body has a bottom surface, a top surface, a peripheral surface connected between the bottom surface and the top surface, and at least one pore channel penetrating the bottom surface and the top surface. The inner surface of the pore channel is either a convex curved surface or a funnel-shaped surface. For the pore channel having the convex curved surface, the pore diameter of the pore channel gradually expands from the center of the pore channel to the top surface and the bottom surface. The pore diameter can also gradually expand from the bottom surface to the top surface. The peripheral surface of the structural ceramic body is wavy or zigzag.

Abstract: An intervertebral fusion device includes a structural ceramic body. The structural ceramic body has a bottom surface, a top surface, a peripheral surface connected between the bottom surface and the top surface, and at least one pore channel penetrating the bottom surface and the top surface. The inner surface of the pore channel is either a convex curved surface or a funnel-shaped surface. For the pore channel having the convex curved surface, the pore diameter of the pore channel gradually expands from the center of the pore channel to the top surface and the bottom surface. The pore diameter can also gradually expand from the bottom surface to the top surface. The peripheral surface of the structural ceramic body is wavy or zigzag.

Abstract: An intervertebral fusion device includes a structural ceramic body. The structural ceramic body has a bottom surface, a top surface, a peripheral surface connected between the bottom surface and the top surface, and at least one pore channel penetrating the bottom surface and the top surface. The inner surface of the pore channel is either a convex curved surface or a funnel-shaped surface. For the pore channel having the convex curved surface, the pore diameter of the pore channel gradually expands from the center of the pore channel to the top surface and the bottom surface. The pore diameter can also gradually expand from the bottom surface to the top surface. The peripheral surface of the structural ceramic body is wavy or zigzag.

Abstract: A method and a composite material used for free forming a bone substitute are provided. The composite material comprises a support cloth, and a partially hardened bone paste coated on the support cloth. The bone paste contains a mixture of calcium sulfate and calcium phosphate in a weight ratio of 1:1 to 1:4. The bone substitute can be made by laminating the composite material either on a bone model or not.

Abstract: A composite conducive to heat dissipation of an LED-mounted substrate includes a ceramic layer being of a thermal conductivity of 20˜24 W/mK; a metal layer being of a thermal conductivity of 100˜200 W/mK; and a graphite layer being of an in-plane thermal conductivity of 950 W/mK and a through-plane thermal conductivity of 3 W/mK, wherein the metal layer is disposed between the ceramic layer and the graphite layer. The composite has one side displaying satisfactory insulation characteristics and the other side displaying satisfactory heat transfer characteristics. The composite incurs low material costs and requires a simple manufacturing process.

Abstract: A method and a composite material used for free forming a bone substitute are provided. The composite material comprises a support cloth, and a partially hardened bone paste coated on the support cloth. The bone paste contains a mixture of calcium sulfate and calcium phosphate in a weight ratio of 1:1 to 1:4. The bone substitute can be made by laminating the composite material either on a bone model or not.

Abstract: A solid solution for use in bone regeneration. The solid solution includes two divalent cations, wherein a first divalent cation is calcium ion (Ca2+) and a second divalent cation is selected from the group consisting of magnesium ion (Mg2+), zinc ion (Zn2+), barium ion (Ba2+) and strontium ion (Sr2+). The solid solution also includes at least one anion, and the at least one anion comprises one or more of sulfate (SO42?), phosphate (PO42?), carbonate (CO32?), and silicate (SiO32?).

Abstract: A ceramic/metal composite structure includes an aluminum oxide substrate, an interface bonding layer and a copper sheet. The interface bonding layer is disposed on the aluminum oxide substrate. The copper sheet is disposed on the interface bonding layer. The interface bonding layer bonds the aluminum oxide substrate to the copper sheet. Some pores are formed near or in the interface bonding layer. A porosity of the interface bonding layer is substantially smaller than or equal to 25%.

Abstract: A sintered calcium sulfate ceramic material includes a plurality of major grains of calcium sulfate solid solutions, and a plurality of reaction grains located at boundaries of the major grains. Each of the reaction grains may be selected from the group consisting of calcium silicate and calcium phosphate. A. sinterable calcium sulfate ceramic material consisting of calcium sulfate and a sintering additive is also provided. The sintering additive comprises silica (SiO2).

Abstract: A fully reflective and highly thermoconductive electronic module includes a metal bottom layer, a transparent ceramic layer and a patterned metal wiring layer. The metal bottom layer has a lower reflective surface. The transparent ceramic layer has an upper surface and a lower surface. The lower surface of the transparent ceramic layer is bonded to the lower reflective surface of the metal bottom layer. The metal wiring layer is bonded to the upper surface of the transparent ceramic layer. The lower reflective surface reflects a first light ray, transmitting through the transparent ceramic layer, to the upper surface of the transparent ceramic layer. A method of manufacturing the fully reflective and highly thermoconductive electronic module is also disclosed.

Abstract: The present invention discloses a method that can improve the sintering ability of calcium sulfate. The material can be used as a bio-material. This method is prepared by pre-mixing +1 and/or +2 and/or +3 and/or +4 and/or +5 valence element and/or its chemical compounds which serves as a sintering additive to calcium sulfate. During sintering, the sintering additive may form a compound and/or a glass and/or a glass-ceramic to assist the densification of the calcium sulfate. The strength and biocompatibility of the specimen after sintering are satisfactory.

Abstract: A sintered calcium sulfate ceramic material includes a plurality of major phases of calcium sulfate solid solutions, and a plurality of reaction phases located at boundaries of the major phases. Each of the reaction phases may be selected from the group consisting of calcium silicate and calcium phosphate. A sinterable calcium sulfate ceramic material consisting of calcium sulfate and a sintering additive is also provided. The sintering additive comprises silica (SiO2).

Abstract: A ceramic/metal composite structure includes an aluminum oxide substrate, an interface bonding layer and a copper sheet. The interface bonding layer is disposed on the aluminum oxide substrate. The copper sheet is disposed on the interface bonding layer. The interface bonding layer bonds the aluminum oxide substrate to the copper sheet. Some pores are formed near or in the interface bonding layer. A porosity of the interface bonding layer is substantially smaller than or equal to 25%. A method of manufacturing the ceramic/metal composite structure is also provided.

Abstract: A method of manufacturing a ceramic/metal composite structure includes the steps of: providing a ceramic substrate; forming a metal interface layer on the ceramic substrate; placing a copper sheet on the metal interface layer; heating the ceramic substrate, the metal interface layer and the copper sheet so that the metal interface layer forms strong bonds with the ceramic substrate and the copper sheet. Multiple stages of pre-oxidizing processes are performed on the copper sheet at different temperatures and in different atmospheres with different oxygen partial pressures before the copper sheet is placed on the metal interface layer. The metal interface layer provides a wetting effect for the copper sheet to the ceramic substrate at a high temperature so that the copper sheet wets a surface of the aluminum oxide.

Abstract: A porous bio-material and a method of preparation thereof. The method includes the following steps. First, a body is formed by mixing a bio-ceramic powder, a water-absorbing natural organic material and a liquid. The water-absorbing natural organic material is selected from the group consisting of carrageenan and agar. Then, the body is partially dried to form a machinable porous bio-material. The sizes of pores and porosity can be tailored by controlling the extent of drying so that the porous bio-material with acceptable strength can be obtained.

Abstract: A space filled drug release structure and a method of manufacturing the same are disclosed. The structure is composed of a highly water-absorbing polymeric matrix and drug particles dispersed in the matrix. The matrix has pores and passages interconnecting the pores together. Because some water is present in the matrix, gastric acid can easily penetrate into the matrix to reach each drug particle. The surface of each drug particle is therefore possible to contact with the gastric acid. The drug releasing rate is therefore fast. Such structure is helpful for those drugs with low dissolution ability in the gastric acid.

Abstract: A method of manufacturing a ceramic/metal composite structure includes the steps of: performing a multi-stage pre-oxidizing process on the copper sheet; placing the copper sheet on a ceramic substrate; and heating the copper sheet and the ceramic substrate to a joining temperature to join the copper sheet and the ceramic substrate together to enhance interface strength between the copper sheet and the ceramic substrate according to the multi-stage pre-oxidizing process. The multi-stage pre-oxidizing process includes a first stage of pre-oxidizing process and a second stage of pre-oxidizing process, and the first and second stages of pre-oxidizing processes are performed in atmospheres with different oxygen partial pressures and at different temperatures.

Abstract: A fully reflective and highly thermoconductive electronic module includes a metal bottom layer, a transparent ceramic layer and a patterned metal wiring layer. The metal bottom layer has a lower reflective surface. The transparent ceramic layer has an upper surface and a lower surface. The lower surface of the transparent ceramic layer is bonded to the lower reflective surface of the metal bottom layer. The metal wiring layer is bonded to the upper surface of the transparent ceramic layer. The lower reflective surface reflects a first light ray, transmitting through the transparent ceramic layer, to the upper surface of the transparent ceramic layer. A method of manufacturing the fully reflective and highly thermoconductive electronic module is also disclosed.

Abstract: The present invention discloses a method that can improve the sintering ability of calcium sulfate. The material can be used as a bio-material. This method is prepared by pre-mixing +1 and/or +2 and/or +3 and/or +4 and/or +5 valence element and/or its chemical compounds which serves as a sintering additive to calcium sulfate. During sintering, the sintering additive may form a compound and/or a glass and/or a glass-ceramic to assist the densification of the calcium sulfate. The strength and biocompatibility of the specimen after sintering are satisfactory.

Abstract: A package assembly with a heat dissipating structure includes a thermal conductive lower metal layer, an electric insulating ceramic layer, a patterned upper metal layer and an electronic component. The electric insulating ceramic layer is disposed on and bonded to the thermal conductive lower metal layer. The patterned upper metal layer is disposed on and bonded to the electric insulating ceramic layer. The patterned upper metal layer is a single-layered metal layer and has an opening from which the electric insulating ceramic layer is exposed. The electronic component is disposed in the opening of the patterned upper metal layer, mounted on the electric insulating ceramic layer through a thermally conductive adhesive or solder, and electrically connected to the patterned upper metal layer.