Abstract:
A method of forming a film is provided. Nanoparticles are deposited on a surface of a substrate using a liquid deposition process. The nanoparticles are linked to each other and to the surface using linker molecules. A coating having a surface energy of less than 70 dyne/cm is deposited over the film to form a coated film. The coated film has an RMS surface roughness of 25 nm to 500 nm, a film coverage of 25% to 60%, a surface energy of less than 70 dyne/cm; and a durability of 10 to 5000 microNewtons. Depending on the particular environment in which the film is to be used, a durability of 10 to 500 microNewtons may be preferred. A film thickness 3 to 100 times the RMS surface roughness of the film is preferred.
Abstract:
The invention relates to a method for creating a substrate for printed or coated functionality. The method comprises obtaining a base web substrate comprising cellulose and/or wood fibres, coating the base web substrate with a barrier layer, and coating the barrier layer with a top coat layer comprising mineral and/or pigment particles. The invention relates also to a substrate for printed or coated functionality, comprising a base web substrate layer comprising cellulose and/or wood fibres, a barrier layer, coated on the base web substrate layer, and a top coat layer comprising mineral and/or pigment particles, coated on the barrier layer. The invention relates also to a functional device and its use.
Abstract:
A method of manufacturing a wiring board including forming a base substrate, forming a first insulation layer on a first surface of the base substrate and a second insulating layer on a second surface of the substrate opposing the first surface, forming an IVH (Interstitial Via Hole) that penetrates the base substrate, and cutting the first insulating layer in a first area and cutting the second insulating layer in a second area offset from said first area to form a first substrate laminated to a second substrate with the base layer interposed therebetween, the second substrate having a smaller mounting area than that of the first substrate such that the first substrate extends beyond an edge of the second substrate.
Abstract:
A wiring board and method of forming the wiring board. The wiring board includes a first substrate, and a second substrate having a smaller mounting area than a mounting area of the first substrate. A base substrate is laminated between the first substrate and the second substrate such that the first substrate extends beyond an edge of the second substrate, and at least one via formed in at least one of the first substrate or the second substrate. A thickness of a portion of the base substrate that is sandwiched between the first substrate and the second substrate is greater than a thickness of a portion of the base substrate that is not sandwiched between the first substrate and the second substrate.
Abstract:
A carrier body for electrical or electronic component elements or circuits, the carrier body being electrically nonconductive or virtually nonconductive. In order to simplify the carrier body while at the same time providing extremely improved heat dissipation, the invention process that the carrier body is provided integrally with heat-dissipating or heat-supplying cooling elements.
Abstract:
An adhesive for bonding and securing a semiconductor chip to a circuit board and electrically connecting the electrodes of the two, and containing an adhesive resin composition and an inorganic filler being contained in an amount of 10 to 200 parts by weight of 100 parts by weight of the adhesive resin composition.
Abstract:
An object of the present invention is to provide a multilayered printed circuit board having a short wiring distance of the conductor circuits, wide option of the design of the conductor circuits and additionally excellent in reliability since cracking scarcely takes place in the interlaminar resin insulating layers in the vicinity of via-holes. The present invention is a multilayered printed circuit board comprising: a conductor circuit and an interlaminar resin insulating layer serially formed on a substrate in alternate fashion and in repetition, wherein a connection of the conductor circuits through the interlaminar resin insulating layers is performed by a via-hole, wherein via-holes in different level layers among the via-holes are formed so as to form a stack-via structure, and wherein at least one of the land diameters of the above-mentioned via-holes in different level layers having the stack via structure is different from the land diameters of other via-holes.
Abstract:
A printed wiring board is provided which includes an interlayer dielectric layer formed on a substrate from a curable resin having flaky particles dispersed therein. The printed wiring board is excellent in cooling/heating cycle resistance and packaging reliability while maintaining a satisfactory heat resistance, electrical insulation, heat liberation, connection reliability and chemical stability. Also a method of producing a printed wiring board is proposed in which an imprint method using a mold having formed thereon convexities corresponding to wiring patterns and viaholes to be formed being buried in an interlayer dielectric layer is used to form the wiring patterns and viaholes by transcribing the concavities of the mold to the interlayer dielectric layer. The imprint method permits to form the wiring patterns and viaholes but assures an easy and accurate transcription without any optical transcription or complicated etching. Thus, a multilayer printed wiring board excellent in insulation reliability and interlayer connection and having fine wiring patterns formed therein can be mass-produced extremely easily and inexpensively.
Abstract:
An object of the present invention is to provide a polyester film having excellent dimensional stability to temperature and humidity.The present invention is a polyester containing a dicarboxylic acid component and a diol component, wherein (i) the dicarboxylic acid component contains not less than 5 mol % and less than 50 mol % of a recurring unit represented by the following formula (A) and more than 50 mol % and not more than 95 mol % of a recurring unit represented by the following formula (B): wherein RA is an alkylene group having 2 to 10 carbon atoms, wherein RB is a phenylene group or naphthalenediyl group; and (ii) the diol component contains 90 to 100 mol % of a recurring unit represented by the following formula (C): —O—RC—O— (C) wherein RC is an alkylene group having 2 to 10 carbon atoms, and a film comprising the same.
Abstract:
An electronic package 100 comprising a semiconductor device 105, a heat spreader layer 110, and a thermal interface material layer 115 located between the semiconductor device and the heat spreader layer. The thermal interface material layer includes a resin layer 120 having heat conductive particles 125 suspended therein. A portion of the particles are exposed on at least one non-planar surface 135 of the resin layer such that the portion of exposed particles 130 occupies a majority of a total area of a horizontal plane 140 of the non-planar surface.