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    • 1. 发明授权
    • Process for producing multilayer circuit board
    • 多层电路板生产工艺
    • US4810528A
    • 1989-03-07
    • US901335
    • 1986-08-28
    • Kazuo KondoHisaharu ShiromizuAsao MorikawaTsuneyuki Sukegawa
    • Kazuo KondoHisaharu ShiromizuAsao MorikawaTsuneyuki Sukegawa
    • C03C17/36H05K1/03H05K1/09H05K3/12H05K3/46B05D5/12
    • H05K3/4667H05K1/092H05K1/0306
    • A process for producing a multilayer circuit board composed of crystallized glass and copper-metallized circuit patterns, which comprises:(1) providing a green sheet of a crystallizable glass powder;(2) providing a copper paste comprising copper component (copper and/or copper oxide) and a glass powder in a proportion by weight of the copper component to the glass powder 95:5 to 75:25, copper oxide being calculated on copper;(3) printing a circuit pattern of the copper paste of step (2) on the green sheet of step (1);(4) coating on the green sheet of step (3) an insulating paste to form an insulating layer except for regions assigned for through holes;(5) printing on the insulating layer of step (4) a circuit pattern of the copper paste of step (2) and filling said holes with the copper paste make a conductive connection through said holes;(6) decomposing the binders by heating the product of step (5) under an oxidizing atmosphere at 400.degree.-850.degree. C.; and(7) heating the product of step (6) at 850.degree.-1050.degree. C. under a reducing atmosphere for a period of time sufficient to reduce copper oxide, sinter the product of step (6) and crystallize said glasses.After step (5), pairs of steps (4) and (5) are repeated to make multilayer circuit boards.
    • 一种由结晶玻璃和铜金属化电路图形成的多层电路板的制造方法,其特征在于,包括:(1)提供可结晶玻璃粉末的生片; (2)将铜成分(铜和/或氧化铜)和铜成分重量比的玻璃粉末提供给玻璃粉末95:5〜75:25,铜计算的铜膏; (3)在步骤(1)的生片上印刷步骤(2)的铜浆的电路图案; (4)在步骤(3)的生片上涂覆绝缘膏,以形成除了通孔的区域之外的绝缘层; (5)在步骤(4)的绝缘层上印刷步骤(2)的铜浆的电路图案并用铜浆填充所述孔,通过所述孔形成导电连接; (6)通过在400-850℃的氧化气氛下加热步骤(5)的产物来分解粘合剂; 和(7)在还原气氛下,在850〜-1050℃下加热步骤(6)的产物一段足以减少氧化铜的时间,烧结步骤(6)的产物并使所述玻璃结晶。 在步骤(5)之后,重复步骤(4)和(5),以制造多层电路板。