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    • 1. 发明授权
    • Dynamic gating of polymers for isotropic properties
    • 用于各向同性的聚合物的动态门控
    • US5399305A
    • 1995-03-21
    • US73874
    • 1993-06-09
    • Arthur BrossThomas Walsh
    • Arthur BrossThomas Walsh
    • B29C45/26B29C45/00B29C45/27B29L31/34H05K3/00B29C45/17
    • B29C45/2708B29C45/00B29C2045/0098B29K2105/0079H05K3/0014
    • A polymeric article having isotropic properties is fabricated from anisotropic materials by orienting the polymer, as well as any fillers, in different directions at different planes through the polymeric article. In a first embodiment, molten polymer is passed between movable gate members (32 and 34) into cavity (30) of mold (28). The movable gate members (32 and 34) impart a strain on the molten polymer by moving in opposite directions (33 and 35) while the molten polymer is dispensed into the cavity (30). Reciprocating the movable gate members (32 and 34) yields a herringbone pattern. Having at least one movable gate member (38) have comb-like projections (40) can assure the strain is imparted deeper into the thickness of the polymeric article. In a second embodiment, molten polymer is passed through movable gates (96 and 100) on perpendicular sides of a mold cavity (94 and 98) where one movable gate (96) is located towards the top of the mold (84) and the other movable gate (100) is located towards the bottom of the mold (84). The gates (94 and 98) are simultaneously driven in directions (68 and 70) along their respective cavity sides while injecting polymer into the cavity. The finished article has a top layer (56) has polymer oriented (58) in a first direction and a bottom layer (52) with polymer oriented (54) in a perpendicular direction. Polymer is randomly oriented (62) between the top and bottom layer (56 and 52).
    • 具有各向同性特性的聚合物由各向异性材料制成,通过在聚合物制品的不同平面上使聚合物以及任何填料沿不同方向取向。 在第一实施例中,熔融聚合物在可移动门件(32和34)之间通到模具(28)的空腔(30)中。 可移动门构件(32和34)通过在熔融聚合物分配到空腔(30)中的同时沿相反方向(33和35)移动而对熔融聚合物施加应变。 往复运动的门构件(32和34)产生人字形图案。 具有至少一个可移动门构件(38)具有梳状突起(40)可以确保应变被更深地赋予聚合物制品的厚度。 在第二实施例中,熔融聚合物在模腔(94和98)的垂直侧通过可移动门(96和100),其中一个可移动门(96)朝向模具(84)的顶部定位,而另一个 活动门(100)位于模具(84)的底部。 沿着其各自的空腔侧同时沿方向(68和70)驱动门(94和98),同时将聚合物注入空腔。 最终制品具有在第一方向上具有聚合物取向(58)的顶层(56)和在垂直方向上具有聚合物取向(54)的底层(52)。 聚合物在顶层和底层(56和52)之间随机取向(62)。
    • 2. 发明授权
    • Apparatus for dynamic gating of polymers for producing molded articles
with isotropic properties
    • 用于生产具有各向同性的模制品的聚合物的动态门控装置
    • US5244378A
    • 1993-09-14
    • US806499
    • 1991-12-13
    • Arthur BrossThomas Walsh
    • Arthur BrossThomas Walsh
    • B29C45/26B29C45/00B29C45/27B29L31/34H05K3/00
    • B29C45/2708B29C45/00B29C2045/0098B29K2105/0079H05K3/0014
    • A polymeric article having isotropic properties is fabricated from anisotropic materials by orienting the polymer, as well as any fillers, in different directions at different planes through the polymeric article. In a first embodiment, molten polymer is passed between movable gate members (32 and 34) into cavity (30) of mold (28). The movable gate members (32 and 34) impart a strain on the molten polymer by moving in opposite directions (33 and 35) while the molten polymer is dispensed into the cavity (30). Reciprocating the movable gate members (32 and 34) yields a herringbone pattern. Having at least one movable gate member (38) have comb-like projections (40) can assure the strain is imparted deeper into the thickness of the polymeric article. In a second embodiment, molten polymer is passed through movable gates (96 and 100) on perpendicular sides of a mold cavity (94 and 98) where one movable gate (96) is located towards the top of the mold (84) and the other movable gate (100) is located towards the bottom of the mold (84). The gates (94 and 98) are simultaneously driven in directions (68 and 70) along their respective cavity sides while injecting polymer into the cavity. The finished article has a top layer (56) has polymer oriented (58) in a first direction and a bottom layer (52) with polymer oriented (54) in a perpendicular direction. Polymer is randomnly oriented (62) between the top and bottom layer (56 and 52).
    • 具有各向同性特性的聚合物由各向异性材料制成,通过在聚合物制品的不同平面上使聚合物以及任何填料沿不同方向取向。 在第一实施例中,熔融聚合物在可移动门件(32和34)之间通到模具(28)的空腔(30)中。 可移动门构件(32和34)通过在熔融聚合物分配到空腔(30)中的同时沿相反方向(33和35)移动而对熔融聚合物施加应变。 往复运动的门构件(32和34)产生人字形图案。 具有至少一个可移动门构件(38)具有梳状突起(40)可以确保应变被更深地赋予聚合物制品的厚度。 在第二实施例中,熔融聚合物在模腔(94和98)的垂直侧通过可移动门(96和100),其中一个可移动门(96)朝向模具(84)的顶部定位,而另一个 活动门(100)位于模具(84)的底部。 沿着其各自的空腔侧同时沿方向(68和70)驱动门(94和98),同时将聚合物注入空腔。 最终制品具有在第一方向上具有聚合物取向(58)的顶层(56)和在垂直方向上具有聚合物取向(54)的底层(52)。 聚合物在顶层和底层(56和52)之间是随机取向的(62)。
    • 5. 发明授权
    • High density probe
    • 高密度探头
    • US5225777A
    • 1993-07-06
    • US830875
    • 1992-02-04
    • Arthur BrossThomas J. Walsh
    • Arthur BrossThomas J. Walsh
    • G01R1/073H01L21/66
    • G01R1/07342
    • There is disclosed a high density test probe assembly, and method of fabricating it. The probe assembly has a multitude of wire-like probe elements whose exposed tips are spaced on centers X and Y to match the centers of closely spaced surface pads of a VLSI circuit. Interconnections to and from the probe elements (for connection to external test equipment) are provided by a multi-layer arrangement of insulating and conducting layers within the body of the probe assembly. The tips of the probe elements are canted relative to vertical so that when the probe assembly is pushed down into mating position onto a VLSI circuit, the probe elements uniformly deflect laterally in one direction only and give a "wiping" action in contacting surface pads of the VLSI circuit together with a desired normal contact force. The method of fabricating the probe assembly includes forcing all of the probe elements through staggered vias in the multilayer arrangement. This step simultaneously makes desired electrical interconnections to the probe elements, precisely aligns and captivates the probe elements, and bends (cants) their ends so that they deflect uniformly in one direction only when the probe assembly is mated with a VLSI circuit.
    • 公开了一种高密度测试探针组件及其制造方法。 探针组件具有多个线状探针元件,其暴露的尖端在中心X和Y上间隔开以匹配VLSI电路的紧密间隔的表面焊盘的中心。 与探头元件(用于连接到外部测试设备)的互连通过探针组件的主体内的绝缘和导电层的多层布置提供。 探针元件的尖端相对于垂直方向倾斜,使得当探针组件被向下推入到VLSI电路中的配合位置时,探针元件仅在一个方向上均匀地偏转横向,并在接触表面垫中的“擦拭” VLSI电路与所需的正常接触力一起。 制造探针组件的方法包括通过多层布置中的交错通孔迫使所有探针元件。 该步骤同时使得对探针元件的期望的电互连,精确地对准和捕获探针元件,并且使其端部弯曲(倾斜),使得仅当探针组件与VLSI电路配合时,它们在一个方向上均匀偏转。