Method of forming through holes in printed wiring board substrates
    101.
    发明授权
    Method of forming through holes in printed wiring board substrates 失效
    在印刷线路板基板上形成通孔的方法

    公开(公告)号:US5352325A

    公开(公告)日:1994-10-04

    申请号:US98637

    申请日:1993-07-28

    Applicant: Yoji Kato

    Inventor: Yoji Kato

    Abstract: The present invention is a method of forming micro through holes in printed wiring board substrate materials by means of chemical etching.In a typical printed wiring board substrate material consisting of a resinous dielectric base material, (which may or may not incorporate glass fibers), clad on both sides by a conductive layer, after the dielectric material in specific locations where through holes are to be formed is exposed by typical processes in which the conductor layer is selectively removed by etching, said exposed dielectric material is first softened, then removed by chemical etching involving several steps and procedures as well as a variety of chemical solutions, under vibratory agitation, forming through holes in said locations of 100 microns diameter or less.Employing the method of the present invention it is possible to determine the position, size and shape of the through hole required and also by means of plating to connect the conductive layers through the dielectric forming micro plated through holes in printed wiring boards.

    Abstract translation: 本发明是通过化学蚀刻在印刷线路板基板材料中形成微通孔的方法。 在由树脂电介质基材(其可以或可以不包括玻璃纤维)组成的典型的印刷线路板基板材料中,在导电层的两侧上包覆在介电材料在要形成通孔的特定位置之后 通过通过蚀刻选择性地去除导体层的典型工艺暴露,首先软化所述暴露的电介质材料,然后通过涉及几个步骤和程序的化学蚀刻以及各种化学溶液在振动搅拌下除去,形成通孔 在直径为100微米或更小的所述位置。 采用本发明的方法,可以确定所需通孔的位置,尺寸和形状,并且还可以通过电镀来连接通过印刷电路板中的电介质形成微电镀通孔的导电层。

    Reduced cycle process for the manufacture of printed circuits, and a
composition for carrying out said process
    105.
    发明授权
    Reduced cycle process for the manufacture of printed circuits, and a composition for carrying out said process 失效
    打印电路制造的减少循环过程,以及执行加工过程的组成

    公开(公告)号:US5104687A

    公开(公告)日:1992-04-14

    申请号:US541500

    申请日:1990-06-21

    Abstract: A process for manufacturing printed circuits provided with through holes, which comprises a cleaning pretreatment including a possible treatment by an organic solvent, a treatment in an alcaline solution of permanganate and a treatment for permanganate reduction, and a subsequent metallization treatment including a treatment for conditioning the walls of the through holes, a treatment for mordanting the copper surfaces, a precatalysis treatment, a catalysis treatment and a metallization treatment by a chemical copper both, wherein three treatments, namely reducing the permanganate, conditioning the walls of the through holes and mordanting the copper surfaces, are performed in a single step. The treatment for conditioning the walls of the through holes is performed by means of non-surfactant, water soluble polymers belonging to the group of the cationic polyelectrolytes. The composition for carrying out three treatments in a single step comprises an acid, hydrogen peroxide, a stabilizer for the hydrogen peroxide and a non-surfactant conditioner belonging to the group of the cationic polyelectrolytes.

    Abstract translation: 一种制造具有通孔的印刷电路的方法,其包括清洁预处理,其包括可能的有机溶剂处理,在高锰酸盐的碱性溶液中的处理和用于高锰酸盐还原的处理,以及随后的金属化处理,包括调理处理 通孔的壁,用于对铜表面进行媒染的处理,预催化处理,催化处理和通过化学铜两者的金属化处理,其中三种处理,即还原高锰酸盐,调节通孔的壁和媒染 铜表面在一个步骤中进行。 用于调节通孔壁的处理通过非表面活性剂,属于阳离子聚电解质组的水溶性聚合物进行。 用于在单一步骤中进行三次处理的组合物包含酸,过氧化氢,用于过氧化氢的稳定剂和属于阳离子聚电解质组的非表面活性剂调节剂。

    Process for treating plastics with alkaline permanganate solutions
    107.
    发明授权
    Process for treating plastics with alkaline permanganate solutions 失效
    用碱性高锰酸盐溶液处理塑料的工艺

    公开(公告)号:US4859300A

    公开(公告)日:1989-08-22

    申请号:US296361

    申请日:1989-01-09

    CPC classification number: C23C18/1617 H05K3/0055 H05K2203/0796

    Abstract: The permanganate process for treating plastics, e.g., printed circuit boards, to enhance the adhesion of metal plating to the plastic is improved by employing electrolysis to either maintain a certain permanganate level in the operating bath or to regenerate a spent or used bath.

    Abstract translation: 通过使用电解来维持操作浴中的某种高锰酸盐水平或再生废水或使用的浴,改善了处理塑料(例如印刷电路板)以增强金属镀层对塑料的粘附性的高锰酸盐方法。

    Metal plating process
    108.
    发明授权
    Metal plating process 失效
    金属电镀工艺

    公开(公告)号:US4751106A

    公开(公告)日:1988-06-14

    申请号:US911453

    申请日:1986-09-25

    Abstract: A process for the formation of a plated through-hole printed circuit board comprising treating a circuit board base material as follows:1. condition with an oxidant solution;2(A). contact with a copper etchant that etches copper and neutralizes oxidant residues on the surface to be plated; and2(B). contact with a conditioner that conditions the board surface for enhanced catalyst adsorption; or2(A). contact with a neutralizer for oxidant residues that neutralizes said residues and conditions the board surface for enhanced catalyst adsorption; and2(B). contact with a copper etchant; and3. catalyze the board; and4. plate electroless metal onto catalyzed surfaces from a plating solution containing a source of halide ions in a concentration of at least 0.1 moles per liter of solution.The process is characterized by the absence of a step of acceleration and contains fewer processing steps than prior art processes.

    Abstract translation: 一种用于形成电镀通孔印刷电路板的方法,包括如下处理电路板基材:1.用氧化剂溶液的状态; 2(A)。 与腐蚀铜并消除待镀表面上的氧化剂残留物的铜蚀刻剂接触; 和2(B)。 与调节板表面的调理剂接触以增强催化剂吸附; 或2(A)。 与用于中和所述残留物的氧化剂残余物的中和剂接触,并且调节板表面以增强催化剂吸附; 和2(B)。 与铜蚀刻剂接触; 和3.催化董事会; 和4.从含有浓度为每升溶液至少0.1摩尔的卤离子源的电镀溶液将催化表面上的无电镀金属镀到板上。 该方法的特征在于不存在加速步骤,并且比现有技术方法包含较少的加工步骤。

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