Abstract: A circuit board for semiconductor test includes first and second sub-circuit boards, and an insulating dielectric layer therebetween. Each sub-circuit board includes a substrate and circuits including upper and lower contacts. The insulating dielectric layer includes through holes, and connecting conductors disposed therein and electrically connected with the upper and lower contacts of two sub-circuit boards. The circuit board is defined with central and peripheral regions. The lower contacts of the first sub-circuit board in the central region are electrically connected with a probe head. The upper contacts of the second sub-circuit board in the peripheral region are electrically connected with a tester, larger in pitch than the lower contacts of the first sub-circuit board in the central region, and larger in amount than the lower contacts of the first sub-circuit board in the peripheral region. The circuit board has great power test uniformity.

Abstract: The present invention provides a photosensitive polyimide resin composition, which comprises (a) a photosensitive polyimide represented by formula (1); (b) a filler selected from one or more of alumina, graphene, inorganic clay, silica, and zinc oxide and having a particle diameter ranging from 10 nm to 1.0 ?m; (c) a photo radical initiator; (d) a radical polymerizable compound; and (e) a solvent for dissolving the photosensitive polyimide; wherein X is derived from a tetracarboxylic dianhydride, Y is derived from a diamine, and m is a positive integer from 1 to 5000.

Abstract: The present invention provides a photosensitive polyimide resin composition, which comprises (a) a photosensitive polyimide represented by formula (1); (b) titanium dioxide having a particle size of 0.2 ?m to 10 ?m; (c) a photo radical initiator; (d) a radical polymerizable compound; and (e) a solvent for dissolving the photosensitive polyimide; wherein X is derived from a tetracarboxylic dianhydride, Y is derived from a diamine, and m is a positive integer from 1 to 5000.

Abstract: A method for making a support structure for a probing device includes a step of providing a substrate having first internal conductive lines, a carrier having second internal conductive lines and a thickness less than 2 mm for packaging an integrated circuit chip, solder balls, and photoresist support blocks made by lithography in a way that the solder balls and the photoresist support blocks are disposed between the substrate and the carrier, the photoresist support blocks separately arranged from each other, and at least one of the photoresist support blocks is disposed between two adjacent solder balls. The method further includes a step of electrically connecting the first internal conductive lines with the second internal conductive lines respectively by soldering the carrier and the substrate with the solder balls by reflow soldering.

Abstract: A method for making a support structure for a probing device includes a step of providing a substrate having first internal conductive lines, a carrier having second internal conductive lines and a thickness less than 2 mm for packaging an integrated circuit chip, solder balls, and photoresist support blocks made by lithography in a way that the solder balls and the photoresist support blocks are disposed between the substrate and the carrier, the photoresist support blocks separately arranged from each other, and at least one of the photoresist support blocks is disposed between two adjacent solder balls. The method further includes a step of electrically connecting the first internal conductive lines with the second internal conductive lines respectively by soldering the carrier and the substrate with the solder balls by reflow soldering.

Abstract: The present invention is related to an illumination device capable of producing ambient light and whose structure can be efficiently manufactured and assembled. The illumination device comprises: a substrate electrically connect to a power supply, a plurality of light sources attached to a surface of the substrate, a reflection body with a reflection surface situated a distance from said plurality of light sources, a shell having a diffusion surface situated a distance from said reflection surface. The illumination device may further comprise a housing for receiving and supporting the substrate and the reflection body. The housing is configured to join with the shell and can be further attached to an external device receiving the ambient light. The light emitted from the light sources is reflected by the reflection body to the diffusion member and then radiates outwardly to the surrounding environment of the shell. The reflection surface of the reflection body is inclined at angle relative to the substrate.

Abstract: The present invention is related to an illumination device capable of producing ambient light and whose structure can be efficiently manufactured and assembled. The illumination device comprises: a substrate electrically connect to a power supply, a plurality of light sources attached to a surface of the substrate, a reflection body with a reflection surface situated a distance from said plurality of light sources, a shell having a diffusion surface situated a distance from said reflection surface. The illumination device may further comprise a housing for receiving and supporting the substrate and the reflection body. The housing is configured to join with the shell and can be further attached to an external device receiving the ambient light. The light emitted from the light sources is reflected by the reflection body to the diffusion member and then radiates outwardly to the surrounding environment of the shell. The reflection surface of the reflection body is inclined at angle relative to the substrate.

Abstract: An illuminating device equipped with an integrated one-piece transparent shell is provided according to one embodiment of the invention. The illuminating device may be connected to a television, a computer monitor or an audio apparatus such that the illuminating device projects ambient light onto background walls or surroundings in order to improve the comfort and viewing experience. In one embodiment of the invention, an illuminating device used for ambient light comprises: a circuit unit comprising a plurality of light sources emitting light and a transceiver accepting display information; a shell coupled with said circuit unit; wherein a portion of said shell is transparent; wherein the shell comprises a diffusion portion and a reflection portion, and wherein a portion of said emitted light is reflected by said reflection portion and dispersed by said diffusion portion.