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    • 84. 发明申请
    • MULTILAYER PRINTED WIRING BOARD HAVING FILLED-VIA STRUCTURE
    • 多层印刷电路板具有填充结构
    • WO99044403A1
    • 1999-09-02
    • PCT/JP1999/000504
    • 1999-02-05
    • H05K3/10H05K3/38H05K3/42H05K3/46
    • H05K3/4661H05K3/108H05K3/381H05K3/382H05K3/421H05K3/423H05K2201/0129H05K2201/015H05K2201/0278H05K2201/09563H05K2201/096H05K2201/09745Y10T428/24273Y10T428/24322Y10T428/24917Y10T428/31681
    • A multilayer printed wiring board having a filled-via structure, advantageous to form a fine circuit pattern and excellent in the resistances to cracking in heat cycles and to thermal shock. Conductor circuits and resin insulating layers are alternately formed in multilayer, via holes are formed in the interlayer insulating resin layer, the surface of a plating layer exposed in the opening part of each via hole is flat and substantially flush with the surface of the conductor circuit, the thickness of the conductor circuit is less than half the diameter of the via holes, the inner wall of the opening part of the interlayer insulating resin layer is roughened, an electroless plating film is formed over the roughened wall surfaces, and each via hole is filled with an electroplating material, thus completing the via holes. The insulating resin of the interlayer resin insulating layer is a composite material of a fluorocarbon resin having an excellent fracture toughness and a heat-resistant thermoplastic resin, a composite material of a fluorocarbon resin and a thermosetting resin, or a composite material of a thermosetting resin and a heat-resistant thermoplastic resin.
    • 一种具有填充通孔结构的多层印刷线路板,有利于形成精细电路图案,并且在热循环和热冲击时具有优异的抗开裂性。 导体电路和树脂绝缘层交替地形成为多层,在层间绝缘树脂层中形成通孔,在每个通孔的开口部分露出的镀层的表面平坦且与导体电路的表面基本齐平 导体电路的厚度小于通孔直径的一半,层间绝缘树脂层的开口部的内壁变粗糙,在粗糙化的壁面上形成化学镀膜,并且每个通路孔 填充有电镀材料,从而完成通孔。 层间树脂绝缘层的绝缘树脂是具有优异的断裂韧性的氟碳树脂和耐热性热塑性树脂,氟碳树脂和热固性树脂的复合材料或热固性树脂的复合材料的复合材料 和耐热性热塑性树脂。
    • 89. 发明申请
    • ALUMINUM PRINTED CIRCUIT BOARD FOR LIGHTING AND DISPLAY BACKPLANES
    • 用于照明和显示背板的铝印刷电路板
    • WO2014121191A1
    • 2014-08-07
    • PCT/US2014/014428
    • 2014-02-03
    • CRYSTALPLEX CORPORATION
    • FREEMAN, William R.
    • H01L23/62F21V7/20
    • F21K9/20H01L33/486H01L33/54H01L33/641H01L2224/48091H01L2224/49109H05K1/053H05K2201/09745H05K2201/10106H01L2924/00014
    • Metal printed circuit boards, particularly aluminum based printed circuit boards are provided. Methods of making the metal printed circuit boards are also provided. Lighting systems, such as LED lighting systems, employing the disclosed metal printed circuit boards are also provided. Some embodiments include a method comprising screen printing on a mask; anodizing the aluminum with a rather thick layer (70um to 80um) of anodization to form a dielectric layer; patterning the anodized layer exposing the areas where traces and pads will later be located; zincating in preparation for electroless nickel (EN) deposition. The zincation step requires that the nitric acid etch is either eliminated or made less aggressive so that it does not remove significant amounts of the anodized dielectric layer. The zincate treatment itself removes some anodization (about 40um), which was the motivation for the excessively thick initial anodized layer; and EN plate deposition to desired thickness.
    • 提供金属印刷电路板,特别是铝基印刷电路板。 还提供了制造金属印刷电路板的方法。 还提供了采用公开的金属印刷电路板的诸如LED照明系统的照明系统。 一些实施例包括包括在掩模上的丝网印刷的方法; 用相当厚的阳极氧化层(70um至80um)阳极氧化铝以形成电介质层; 图案化阳极氧化层,暴露稍后将放置痕迹和垫的区域; 锌化制备无电镀镍(EN)沉积。 锌化步骤需要硝酸蚀刻被消除或制成较少侵蚀性,使得它不会去除大量的阳极化电介质层。 锌酸盐处理本身消除了一些阳极氧化(约40um),这是过厚的初始阳极氧化层的动机; 和EN板沉积到所需的厚度。