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    • 3. 发明申请
    • MIRRORS FOR POLYMER WAVEGUIDES
    • 聚合物波长镜
    • WO2004015463A1
    • 2004-02-19
    • PCT/SE2003/001252
    • 2003-08-06
    • ACREO ABROBERTSSON, Mats
    • ROBERTSSON, Mats
    • G02B5/08
    • G02B6/1221G02B6/12002G02B6/125G02B6/42G02B6/4214G02B6/4232G02B6/43G02B2006/12104
    • In a substrate (15) such as a printed circuit board having optical wave guides (11, 7, 9) in its surface layers a mirror structure (17) is directly attached to a plate (1) and has a reflective, tilted surface (25). The mirror structure projects from an inner portion of the surface of the plate into a recess (13) in the substrate surface, the recess being made in the optical waveguide. The reflective surface thereby deflects light travelling in the waveguide. It can deflect light issued from the plate, in the case where the plate is e.g. a laser chip, to be injected into the waveguide. The reflective surface can also deflect light travelling in the waveguide to be received by the plate in the case where the plate has a photodetecting capability. The plate, e.g. a semiconductor chip, can be surface mounted to the substrate. For that purpose the plate has solder pads (21) cooperating with solder bumps (19) and such mounting can give the plate a very accurate position at the substrate surface. The plate can also be a dummy plate acting only as a carrier of the mirror structure that then can contain a plurality of reflecting surfaces placed on top of each other for deflecting light from one level of optical waveguides to another level and thus acts as an optical via.
    • 在其表面层中具有光波导(11,7,9)的印刷电路板的基板(15)中,反射镜结构(17)直接附接到板(1)并具有反射的倾斜表面 25)。 反射镜结构从板的表面的内部突出到衬底表面中的凹部(13)中,凹部被制成在光波导中。 因此,反射表面偏转在波导中行进的光。 它可以使板发出的光偏转, 激光芯片,被注入到波导中。 在板具有光电检测能力的情况下,反射面也可以使在波导中行进的光偏转成被板接收。 板,例如 半导体芯片可以表面安装到基板上。 为此,该板具有与焊料凸块(19)配合的焊盘(21),并且这种安装可以使板在衬底表面处非常准确地位置。 板也可以是仅作为反射镜结构的载体的虚拟板,其然后可以包含放置在彼此顶部的多个反射表面,用于将光从一个级别的光波导偏转到另一个水平,因此用作光学 通过。