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    • 10. 发明授权
    • Optical waveguide, package board having the same, and manufacturing method thereof
    • 光波导,具有该光波导的封装板及其制造方法
    • US07505661B2
    • 2009-03-17
    • US12078948
    • 2008-04-08
    • Han-Seo ChoJe-Gwang YooJoon-Sung KimSang-Hoon Kim
    • Han-Seo ChoJe-Gwang YooJoon-Sung KimSang-Hoon Kim
    • G02B6/10H01L21/00
    • B29D11/00663G02B6/136G02B6/43H05K1/0274H05K3/3436H05K2201/10121Y10T29/49155
    • An optical waveguide, a package board having the optical waveguide, and manufacturing methods thereof are disclosed. The method of manufacturing an optical waveguide includes: forming a first reflective bump and a second reflective bump, which have inclined surfaces formed on sides opposite to each other and which are disposed with a predetermined distance in-between, on one side of a first cladding; forming a core between the first reflective bump and the second reflective bump; and stacking a second cladding over the one side of the first cladding such that the second cladding covers the first reflective bump, the second reflective bump, and the core. With this method, inclined surfaces can be formed by stacking a metal layer on the lower cladding and then selectively etching the metal layer, which can reduce lead time and enable a high degree of freedom in design.
    • 公开了一种光波导,具有光波导的封装板及其制造方法。 制造光波导的方法包括:形成第一反射凸块和第二反射凸块,所述第一反射凸块和第二反射凸块具有形成在彼此相对的侧面上的倾斜表面,并且在第一包层的一侧上以预定距离设置 ; 在所述第一反射凸块和所述第二反射凸块之间形成芯; 以及在所述第一包层的所述一侧上堆叠第二包层,使得所述第二包层覆盖所述第一反射凸起,所述第二反射凸起和所述芯。 利用该方法,可以通过在下包层上层叠金属层然后选择性地蚀刻金属层来形成倾斜表面,这可以减少交货时间并且能够在设计上实现高自由度。