Abstract:
The present invention provides an electronic support (210) comprising: (A) a prepeg layer (214) comprising: (1) at least one reinforcement material (220); (2) at least one matrix material (216) in contact with at least a portion of the at least one reinforcement material (220); and (B) at least one layer (217) in contact with at least a portion (224) of at least one surface of the prepeg layer (214), the at least one layer (217) comprising at least one inorganic filler (218) and not greater than 25 weight percent of adhesive materials based on the total weight of at least one layer (217) on a total solids basis.
Abstract:
The present invention provides coated fiber strand comprising at least one fiber having a residue of an aqueous forming size composition applied to at least a portion of a surface of the at least one fiber, the aqueous forming size composition comprising: (a) at least one starch; (b) at least one film-forming material; (c) at least one lubricant; and (d) a plurality of discrete particles that provide interstitial space between the at least one fiber and at least one adjacent fibre sufficient to allow wet out of the fiber strand. In one embodiment of the invention, the fibers are glass fibers, the at least one starch comprises an oleophobic starch, the at least one film-forming material comprises a N-vinyl amide polymer, the at least one lubricant comprises an ester, and the particles are dimensionally stable particles selected from polymeric organic materials, non-polymeric organic materials, polymeric inorganic materials, non-polymeric inorganic materials, composite materials and mixtures thereof. In one non-limiting embodiment of the invention, the particles comprise hexagonal boron nitride particles and/or hollow particles formed from a copolymer of styrene and acrylic monomer. The present invention also provides a fabric incorporating the coated fabric strand and an electronic support and an electronic circuit board incorporating the fabric.
Abstract:
The present invention provides a coated fiber strand comprising at least one fiber having a layer of a dried residue of a resin compatible coating composition on at least a portion of a surface of the at least one fiber, the resin compatible coating composition comprising: a) a plurality of discrete, dimensionally stable particles formed from materials selected from the group consisting of organic materials, polymeric materials, composite materials and mixtures thereof that provide an interstitial space between the at least one fiber and at least one adjacent fiber, the particles having an average particle size of about 0.1 to 5 micrometers; b) at least one lubricious material; c) at least one polymeric film former; and d) at least one coupling agent, and a fabric incorporating at least one of the fiber strands.
Abstract:
The invention relates to a method for producing rewiring substrates (CSP) for integrated circuit packages using starting materials consisting of a layer of dielectric (1) and one or two layers of electrically conductive material (2, 20). According to said method current paths and contact surfaces (2', 20') are formed in a layer of electrically conductive material (2, 20) by photochemical structuring, access holes and/or access points (1') are formed in the dielectric (1) by plasma ablation and solder balls (3) are placed into the access holes and/or access points (1') and soldered to the current paths and contact surfaces (2', 20'). According to the invention, integrated circuit packages are formed by electrically joining integrated circuits (5) to the current paths and contact surfaces (2') of the rewiring substrates (CSP) created in this way.
Abstract:
A laminate comprising a conductor, such as a stainless steel foil, and a polyimide precursor resin layer and a photosensitive resin layer successively formed on the conductor, or a laminate for the preparation of an HDD suspension, comprising a stainless steel foil and a polyimide precursor resin layer and a photosensitive resin layer successively formed on the stainless steel foil. In particular, the use of a resin having repeating units derived from specified aromatic diamine and aromatic carboxylic dianhydride as the polyimide precursor resin enables an insulator to be very easily fabricated on the conductor with high fabrication accuracy and excellent reliability and, when the laminate is used in the production of an HDD suspension, enables an HDD suspension integral with circuit wiring to be provided with high accuracy.
Abstract translation:公开了一种显示装置用基板,其阻气性,柔软性,耐热性,尺寸稳定性,可操作性和二次加工性优异。 具体公开了一种用于显示装置的基板,其包括无机玻璃和布置在无机玻璃两侧的树脂层。 优选的是,树脂层的总厚度d um um um um um of of the d d d d d d d d d d d d d d d d d d d d d d d d d d d sub>为0.5-2.2。 更优选地,无机玻璃两侧的树脂层由相同的材料构成,具有与无机玻璃的厚度相等的厚度。 显示装置的基板在170℃下的平均线膨胀系数优选为20ppm·℃以下。
Abstract:
A passive electrical article includes a first electrically conductive substrate having a major surface and a second electrically conductive substrate having a major surface. The major surface of the second substrate faces the major surface of the first substrate. An electrically resistive layer is on at least one of the major surface of the first substrate and the major surface of the second substrate. An electrically insulative layer is between the first and second substrates and in contact with the electrically resistive layer. The insulative layer is a polymer having a thickness ranging from about 1 µm to about 20 µm. The insulative layer has a substantially constant thickness.
Abstract:
A method of making an improved interposer for use in forming an electrical connection between electrical components. The interposer includes a bi-lobate contact pad made of an elastomeric material embedded with conductive metallic granules.
Abstract:
The present invention provides an electronic support (10) comprising: (A) at least one woven fiber reinforcement material (20) formed from at least one fiber free of basalt glass; and (B) at least one matrix material (16) in contact with at least a portion of the at least one reinforcement material (20), the at least one matrix material (16) comprising at least one non-fluorinated polymer and at least one inorganic filler (18), wherein the at least one inorganic filler (18) comprises at least one non-hydratable, lamellar inorganic solid lubricant having a high electrical resistivity and wherein the at least one inorganic filler (18) comprises at least 6 weight percent of a total combined weight of the at least one inorganic filler (18) and the at least one matrix material (16) on a total solids basis.