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    • 4. 发明授权
    • Method for manufacturing build-up multi-layer printed circuit board by using yag laser
    • 通过使用yag激光制造积层多层印刷电路板的方法
    • US06405431B1
    • 2002-06-18
    • US09467780
    • 1999-12-20
    • Dong ShinKeon Yang ParkYoung Hwan ShinByung Kook SunJae Heun Joung
    • Dong ShinKeon Yang ParkYoung Hwan ShinByung Kook SunJae Heun Joung
    • H01K310
    • H05K3/4652H05K3/0035H05K3/0038H05K2201/0358H05K2201/09518Y10T29/49126Y10T29/49155Y10T29/49165
    • A method for manufacturing a build-up multi-layer printed circuit board is disclosed in which a YAG laser is used upon the formation of a via hole in the multi-layer printed circuit board, such that it can have the following advantages: the manufacturing process would become simple; the component packaging density and freedom for the design of the board would be improved; and a high speed of signal process would be ensured. The method for manufacturing a build-up multi-layer printed circuit board includes the steps of: forming a first printed circuit pattern on a copper clad laminate (CCL) by applying a general photo-etching process, the CCL having a copper foil on the one face thereof; stacking a resin-coated (on one face) copper foil (RCC) on the CCL with the first printed circuit pattern formed thereon, and heating and pressing this structure; irradiating a YAG laser to the board with said RCC stacked so as to form a via hole at a predetermined position by removing said RCC; carrying out an electroless and electro copper plating on the board with the via hole formed therein to form a plated layer; and forming a second printed circuit pattern on said plated layer to electrically connect the layers on which the first and second printed circuit patterns are formed.
    • 公开了一种用于制造积层多层印刷电路板的方法,其中在多层印刷电路板中形成通孔时使用YAG激光器,使得其可以具有以下优点:制造 过程变得简单; 组件封装密度和板的设计自由度将得到改善; 并且可以确保信号处理的高速度。 用于制造积层多层印刷电路板的方法包括以下步骤:通过施加一般的光蚀刻工艺在覆铜层压板(CCL)上形成第一印刷电路图案,将具有铜箔的CCL 一面; 在其上形成有第一印刷电路图案的CCL上堆叠树脂涂覆(一面)铜箔(RCC),并加热并压制该结构; 用所述RCC将YAG激光照射到所述板上,以便通过去除所述RCC在预定位置形成通孔; 在其上形成有通孔的板上进行化学镀和电镀铜以形成镀层; 以及在所述镀层上形成第二印刷电路图案,以电连接形成有第一和第二印刷电路图案的层。