Abstract:
A liquid crystal apparatus in which an anisotropic conductive layer made of organic resin containing several electrically conductive particles having substantially identical particle sizes is disposed between lead electrodes of a liquid crystal device and the lead electrodes of a drive circuit board, thermocompression bonding being applied to make the electrically conductive particles in direct contact with both lead electrodes to allow both lead electrodes to be electrically connected with each other. Further, at least one of the lead electrodes of a common electrode in the liquid crystal device and of the circuit board corresponding to the common electrode includes a number of separated electrodes that are spaced apart, and the pitches and widths of the separated electrodes are in the range of .+-.30% around the average values for pitch and width for the separated electrodes.
Abstract:
A wiring board includes: a substrate; a first seed layer provided on the substrate; a first conductive layer provided on the first seed layer; a first insulating layer provided on the first conductive layer; a second seed layer provided on the first insulating layer; and a second conductive layer provided on the second seed layer. An area of the first insulating layer is smaller than an area of the first conductive layer. An area of the second conductive layer is smaller than the area of the first insulating layer. A region of the first insulating layer not overlapping the second conductive layer includes a first region surrounding the second conductive layer and a second region outside the first region. A surface roughness of the second region is larger than a surface roughness of the first region.
Abstract:
A sheet for manufacturing a component carrier includes a first structure having first filler particles in a resin matrix, and a second structure stacked with the first structure and having second filler particles in a resin matrix, wherein a hollow volume in a respective one of the second filler particles is larger than in a respective one of the first filler particles.
Abstract:
According to embodiments of the present invention, an ink composition is provided. The ink composition includes a plurality of nanostructures distributed in at least two cross-sectional dimension ranges, wherein each nanostructure of the plurality of nanostructures is free of a cross-sectional dimension of more than 200 nm. According to further embodiments of the present invention, a method for forming a conductive member and a conductive device are also provided.
Abstract:
An electronic device including an electronic unit and a redistribution layer is disclosed. The electronic unit has connection pads. The redistribution layer is electrically connected to the electronic unit and includes a first insulating layer, a first metal layer and a second insulating layer. The first insulating layer is disposed on the electronic unit and has first openings disposed corresponding to the connection pads. The first metal layer is disposed on the first insulating layer and electrically connected to the electronic unit through the connection pads. The second insulating layer is disposed on the first metal layer. The first insulating layer includes first filler particles, and the second insulating layer includes second filler particles. The first filler particles have a first maximum particle size, the second filler particles have a second maximum particle size, and the second maximum particle size is greater than the first maximum particle size.
Abstract:
A printed wiring board includes an interlayer resin insulating layer including resin and inorganic particles, a via conductor formed through the insulating layer, a first conductor layer formed on the first surface of the insulating layer and including a land portion of the via conductor on the first surface, and a second conductor layer formed on second surface of the insulating layer and connected to bottom of the via conductor. The bottom of the via conductor has diameter of 20 to 35 μm, the first conductor layer has thickness of 3 to 12 μm, the insulating layer has thickness of 1 to 15 μm, the second conductor layer has thickness of 1 to 12 μm, and the second conductor and insulating layers are formed such that T1/T2 is 0.06 to 7.00 where T1 represents the thickness of the second conductor layer, and T2 represents the thickness of the insulating layer.
Abstract:
This conductive paste is such that the printing properties and sintering properties are superior and is formed such that resistance of wiring after sintering is lowered. This conductive paste is characterized by being formed from copper-based metal particles and by an aspect ratio (dmax/dmin), which is defined as the ratio of the maximum diameter (dmax) and minimum diameter (dmin) for the metal particles, being greater than or equal to 1.0 and smaller than 2.2.
Abstract:
A polymer composition that comprises an aromatic polyester, a laser activatable additive, and a mineral filler is provided. The mineral filler has a median size of about 35 micrometers or less and the laser activatable additive has a mean size of about 1000 nanometers or less.
Abstract:
A anisotropic conductive film includes: an electrically insulating adhesive layer; electrically conductive particles disposed in lattice form in the electrically insulating adhesive layer; a reference electrically conductive particle defined, an electrically conductive particle closest to the reference electrically conductive particle defined as a first electrically conductive particle, an electrically conductive particle equally close or next closest to the reference electrically conductive particle regarding the first electrically conductive particle defined as a second electrically conductive particle. The second electrically conductive particle absent from lattice form axis including the reference electrically conductive particle and first electrically conductive particle. A projection image in the anisotropic conductive film longitudinal direction of the reference electrically conductive particle and first electrically conductive particle or second electrically conductive particle overlap and the anisotropic conductive film projection image in a short-side direction the reference electrically conductive particle and second electrically conductive particle or first electrically conductive particle overlap.
Abstract:
A circuit board and an electronic device having the circuit board that includes a ceramic sintered body, a through conductor and a metal wiring layer. The ceramic sintered body includes a through hole penetrating from a first main surface to a second main surface thereof. The through conductor is in the through hole and has first and second ends. The metal wiring layer covering the first end and electrically connected to the through conductor. The through conductor includes: a first portion having a hollow cylinder shape, in contact with an inner wall of the through hole and extending from the first end to the second end; and a second portion having a columnar shape and disposed inside the first portion. The second portion has an average grain size of the metal larger than that in the first portion.