Abstract: A power component submount includes a ceramic substrate, a sputtering layer formed on the ceramic substrate, a conductive block formed on the sputtering layer, and three electroless plating layers that are sequentially stacked on the conductive block. The sputtering layer includes an electroplating portion. The conductive block is formed on the electroplating portion, and bottoms of the three electroless plating layers are connected to the ceramic substrate. Materials of the three electroless plating layers are gold, palladium, and gold, respectively; or, materials of the three electroless plating layers are nickel, palladium, and gold, respectively. One of the three electroless plating layers arranged away from the conductive block is provided for allowing a power component to be mounted thereon.

Abstract: A light emitting diode package structure and a method for manufacturing the same are provided. The LED package structure includes a substrate having a first and a second surface opposite to each other, a conductive structure including a first and a second conductive structure electrically connected with each other, a first gold layer disposed on the first conductive structure, a second gold layer disposed on the second conductive structure, an LED chip disposed on the first gold layer, and a package layer disposed on the first surface and encapsulating the first conductive structure, the first gold layer, and the LED chip. The first conductive structure is disposed on the first surface. The second conductive structure is disposed on the second surface. A thickness of the first gold layer is greater than 1 ?m. The second conductive structure is completely covered by the second gold layer.

Abstract: A circuit board structure is provided. The circuit board structure includes a substrate, a solder mask coupler, a supporter, and a chip. The substrate has a conductive structure. The solder mask coupler is disposed on the substrate. The supporter contacts the solder mask coupler, and the supporter is fixed on the substrate via the solder mask coupler. The chip is disposed on the substrate, and the chip is electrically connected with the conductive structure.

Abstract: A ceramic substrate and a method for manufacturing the same are provided. The ceramic substrate includes a spheroidal aluminum nitride powder, a plate-shaped aluminum nitride powder, a boron nitride powder, and an yttrium oxide powder. A percentage by weight of the spheroidal aluminum nitride powder ranges between 63% and 90%. A percentage by weight of the plate-shaped aluminum nitride powder ranges between 0.05% and 30%. A percentage by weight of the boron nitride powder ranges between 0.05% and 2%. A percentage by weight of the yttrium oxide powder ranges between 0.05% and 5%. The method includes a tape casting operation and a primary and pressureless sintering process.

Abstract: A ceramic metal composite substrate (CMCS) includes a metal core layer, two soldering layers, and two ceramic covering layers. The metal core layer includes copper, and the metal core layer has two metallic surfaces spaced apart from each other along a thickness direction by a predetermined thickness. The two soldering layers are respectively formed on the two metallic surfaces. The two ceramic covering layers are respectively fixed to the two metallic surfaces through the two soldering layers. Each of the two ceramic covering layers has a heat-transfer coefficient greater than or equal to 20 W/m·k, and a sum of thicknesses of the two ceramic covering layers and thicknesses of the two soldering layers is less than or equal to the predetermined thickness. Each of the two ceramic covering layers overlaps at least 80% of an area of the corresponding metallic surface along the thickness direction.

Abstract: A method for manufacturing a conductive circuit board includes the steps of: preparing a substrate having opposite upper and lower surfaces, and at least one via hole extending through the upper and lower surfaces and defined by an inner surface; forming a compound metal layer on at least one of the upper surface and the lower surface of the substrate and on the inner surface; etching the compound metal layer by a laser beam, so that a patterned metal circuit layer having a predetermined pattern formed on the substrate; and forming a surface finish layer on a top surface of the patterned metal circuit layer, so as to form a conductive circuit layer. A conductive circuit board manufactured therefrom is also enclosed.

Abstract: A ceramic metal composite substrate includes a metal core layer, two soldering layers, and two ceramic covering layers. The metal core layer is a metal-diamond composite layer, and the metal core layer has two metallic surfaces spaced apart from each other along a thickness direction by a predetermined thickness. The two soldering layers are respectively formed on the two metallic surfaces. The two ceramic covering layers are respectively fixed to the two metallic surfaces through the two soldering layers. Each of the two ceramic covering layers has a heat-transfer coefficient greater than or equal to 20 W/m·k, and a sum of thicknesses of the two ceramic covering layers and thicknesses of the two soldering layers is less than or equal to the predetermined thickness. Each of the two ceramic covering layers overlaps at least 80% of an area of the corresponding metallic surface along the thickness direction.

Abstract: A ceramic submount for a semiconductor device and a method for manufacturing the same are provided. The ceramic submount includes a ceramic core board, an electrode layer, and a solder unit. The electrode layer is disposed on one side of the ceramic core board. The solder unit includes a buffer containing layer and a soldering layer. A cross-section of the solder unit has an inversed-trapezoid shape. The buffer containing layer is disposed on a surface of the electrode layer. A receiving space is concavely formed on a top surface of the buffer containing layer, and the soldering layer is filled in the receiving space. The buffer containing layer surrounds the soldering layer.

Abstract: A printed circuit board (PCB) is disclosed. The PCB includes a substrate having a plurality of through holes, a plurality of thermally-conductive blocks disposed in the through holes respectively, bonding structures respectively disposed in each through holes, and a metal circuit formed on the substrate. Particularly, the thermally-conductive block is tightly attached to the inner wall of the through hole through the bonding structure. In brief, the bonding structure includes a metal block and metal layers coated on both surfaces of the metal block to replace the conventional adhesive layer made of epoxy resin to tightly fix the thermally-conductive block in the through hole.

Abstract: A manufacturing method of a circuit board. The manufacturing method includes: providing a first substrate; forming an opening on the first substrate; disposing a second substrate, which has a plurality of through holes in the opening; forming an adhesive layer between the first substrate and the second substrate; forming a bonding layer on the first substrate and the second substrate; forming a metal layer on the bonding layer; and patterning the metal layer to form a circuit layer. A circuit board is also disclosed in the disclosure.

Abstract: This disclosure is related to a circuit board structure with an embedded ceramic substrate. A circuit substrate includes an insulating base, a first copper foil and a through-hole portion. A ceramic substrate is disposed in the through-hole portion and includes a ceramic substrate and a second copper foil. A plurality of positioning parts are arranged between the insulating base and the ceramic base. An adhesive layer is disposed between the insulating base and the ceramic base to seal the through-hole portion. A metal layer is disposed on the first copper foil and the second copper foil to cover the adhesive layer exposed from the through-hole portion. The metal layer is patterned to form a circuit layer. This disclosure also provides a manufacturing process of a circuit board structure with an embedded ceramic substrate.

Abstract: A chip packaging structure and a method for fabricating the same are provided. The chip package structure includes a conductive substrate, a dam and a metal shielding layer. The conductive substrate includes a substrate, vias and electrodes. The substrate has first and second board surfaces opposite to each other. The vias penetrate through the first board surface and the second board surface, and a part of the vias is disposed in a first die-bonding region on which a chip is to be arranged. The electrodes extend from the first board surface to the second board surface through the vias. The dam is formed on the first board surface to surround the first die-bonding region, and the dam has a height higher than that of the chip. The metal shielding layer covers the dam and a part of the first board surface that do not overlap with the electrodes.

Abstract: A method for manufacturing a conductive circuit board includes the steps of: (a) preparing a substrate having opposite upper and lower surfaces, and at least one through hole extending through the upper and lower surfaces and defined by an inner surface; (b) forming a metal base layer on at least one of the upper and lower surfaces and on the inner surface; (c) etching the metal base layer by a laser beam so that the at least one of the upper and lower surfaces and the inner surface are formed with a patterned metal base layer; and (d) forming a metal circuit layer on the at least one of the upper and lower surfaces and on the inner surface to increase a thickness of the patterned metal base layer. A conductive circuit board manufactured therefrom is also enclosed.

Abstract: The present invention provides a TSV-based oscillator WLP structure and a method for fabricating the same. The method of the present invention comprises steps: providing a silicon base having an oscillator unit disposed thereon; forming on the silicon base at least one package ring surrounding the oscillator unit; and disposing a silicon cap on the package ring to envelop the oscillator unit. The present invention adopts a cap and a base, which are made of the same material, to effectively overcome the problem of thermal stress occurring in a conventional sandwich package structure. Further, the present invention elaborately designs the wiring on the lower surface of the base to reduce the package size and decrease consumption of noble metals.

Abstract: The present invention provides a TSV-based oscillator WLP structure and a method for fabricating the same. The method of the present invention comprises steps: providing a silicon base having an oscillator unit disposed thereon; forming on the silicon base at least one package ring surrounding the oscillator unit; and disposing a silicon cap on the package ring to envelop the oscillator unit. The present invention adopts a cap and a base, which are made of the same material, to effectively overcome the problem of thermal stress occurring in a conventional sandwich package structure. Further, the present invention elaborately designs the wiring on the lower surface of the base to reduce the package size and decrease consumption of noble metals.