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公开(公告)号:US4387540A
公开(公告)日:1983-06-14
申请号:US298587
申请日:1981-09-02
申请人: Robert E. Harwood
发明人: Robert E. Harwood
CPC分类号: B24B41/06 , B24B19/165
摘要: A method of forming reference flats on a plurality of styli comprises the step of placing the styli lengthwise in parallel grooves disposed adjacent the surface of a first plate, allowing the top portions of the styli to project above the surface. A coating of wax is applied to the flat surface of a second plate. The wax-coated second plate is then pressed against the surface of the first plate until the top portions of the styli are held firmly against the surface of the second plate, after which the second plate is lifted from the first plate with the styli remaining adhered to the second plate. The exposed portions of the styli are lapped to form the reference flats by moving an abrasive surface in a direction along the lengthwise orientation of the styli.
摘要翻译: 在多个测针上形成基准平面的方法包括将测针长度方向放置在邻近第一板的表面设置的平行凹槽中的步骤,允许测针的顶部在表面上方突出。 将蜡涂层施加到第二板的平坦表面上。 然后将涂有蜡的第二板压在第一板的表面上,直到测针的顶部牢固地固定在第二板的表面上,然后第二板从第一板上抬起,测针保持粘附 到第二盘。 通过沿着测针的长度方向的方向移动研磨表面,研磨触针的暴露部分以形成基准平面。
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公开(公告)号:US4759829A
公开(公告)日:1988-07-26
申请号:US108664
申请日:1987-10-15
CPC分类号: H01L33/483 , H01L21/4871 , H01L33/40 , H01L33/641 , H01L2224/48463 , H01L2924/01327 , H01L2933/0075 , H01L33/62
摘要: A device header with a multilayer coating overlying its entire surface, and a method of making said header, are disclosed. The multilayer coating comprises an electrolytic nickel layer and a gold layer in the device mounting area of the header, whereas the rest of the header is coated with electroless nickel, a first gold layer, electrolytic nickel, and a second gold layer. In the fabrication, the electroless nickel layer is deposited over the entire header followed by the first gold layer. Upon removing these layers from the device mounting area, the first gold layer remaining on the rest of the header acts as a mask for the etching of the mounting area preparatory to deposition of electrolytic nickel and the second gold layer. The header has the advantage of the excellent coverage of electroless nickel over most of its surface, but with the advantage of high purity electrolytic nickel in the device mounting area.
摘要翻译: 公开了一种具有覆盖其整个表面的多层涂层的装置头部以及制造所述头部的方法。 多层涂层在集管的装置安装区域中包括电解镍层和金层,而集管的其余部分涂覆有无电镍,第一金层,电解镍和第二金层。 在制造中,无电镀镍层沉积在整个集管上,随后是第一金层。 在从装置安装区域移除这些层时,残留在集管的其余部分上的第一金层用作用于蚀刻沉积电解镍和第二金层的安装区域的掩模。 该头具有在其大部分表面上具有优异的化学镀镍覆盖的优点,但是在装置安装区域中具有高纯度电解镍的优点。
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公开(公告)号:US4693649A
公开(公告)日:1987-09-15
申请号:US735163
申请日:1985-05-17
IPC分类号: B23D1/26
CPC分类号: B23D1/26 , Y10T29/5148 , Y10T409/50082 , Y10T409/501968 , Y10T409/50246
摘要: An apparatus and method for imparting a sharp, defect-free outside corner of a desired angle to a metal workpiece are disclosed. The apparatus comprises two separate cutting tools, each with a distinct cutting direction. The tools are juxtaposed such that their leading surfaces are adjacent to each other and that their respective cutting edges intersect at the desired angle. This provides that the cutting directions of each tool are opposite one another. In using the improved cutting apparatus, the workpiece is secured and the apparatus must be movable along the x, y and z axes. By cutting the first and second surfaces of the workpiece in sequence with the first and second cutting edges of the present apparatus respectively, a sharp defect-free corner of the desired angle can be imparted to the workpiece. A specific application for the present invention is in the fabrication of intricate copper products, such as heatsinks for semiconductor devices.
摘要翻译: 公开了一种用于赋予金属工件所需角度的锋利的,无缺陷的外角的装置和方法。 该装置包括两个单独的切割工具,每个具有不同的切割方向。 工具并置,使得它们的前表面彼此相邻并且它们各自的切削刃以所需的角度相交。 这规定了每个工具的切割方向彼此相反。 在使用改进的切割设备时,工件被固定,并且设备必须能够沿x,y和z轴移动。 通过分别用本装置的第一和第二切削刃依次切割工件的第一和第二表面,可以对工件赋予所需角度的无锐角的尖角。 本发明的具体应用是制造复杂的铜制品,例如用于半导体器件的散热器。
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公开(公告)号:US4581629A
公开(公告)日:1986-04-08
申请号:US505492
申请日:1983-06-17
申请人: Maria Harvey , Robert E. Harwood
发明人: Maria Harvey , Robert E. Harwood
CPC分类号: H01L33/642 , H01S5/02272 , H01S5/02268 , H01S5/024 , H01S5/0425
摘要: An improved light emitting device, comprising a light emitting element affixed to a tapered quadrilateral mounting surface of a copper heatsink, is disclosed. The tapered mounting surface includes two slightly divergent mounting edges whereby the width of the mounting surface varies to accommodate light emitting elements of varying sizes. The angle of divergence between the two mounting edges should be kept small to provide accurate facet-to-edge alignment of the light emitting element to the mounting surface.
摘要翻译: 公开了一种改进的发光器件,其包括固定到铜散热片的锥形四边形安装表面的发光元件。 锥形安装表面包括两个略微发散的安装边缘,由此安装表面的宽度变化以适应不同尺寸的发光元件。 两个安装边缘之间的发散角度应保持较小,以提供发光元件与安装表面的准确的面对边对齐。
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