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    • 3. 发明授权
    • Hermetic seal and controlled impedance RF connections for a liquid metal micro switch
    • 用于液态金属微动开关的密封和阻抗RF连接
    • US06825429B2
    • 2004-11-30
    • US10403743
    • 2003-03-31
    • Lewis R. DoveMarvin Glenn Wong
    • Lewis R. DoveMarvin Glenn Wong
    • H01H904
    • H01H29/28H01H2029/008
    • One or more LIMMS devices on a substrate, possibly having same-surface signal conductors, are hermetically sealed by either: (a) Enclosing each entire LIMMS device beneath a common or respective outer cover that is separate from the LIMMS device(s) and impervious to contaminants; or (b) Fabricating each LIMMS device such that its individual cover block (which is already a component of the LIMMS and is not a separate outer cover) can be hermetically sealed against the substrate. Each case must limit the effects of the hermetic seal upon impedances. In case (a) the substrate is covered with a layer of dielectric material matching the ribbon-like footprint of the perimeter of the separate outer cover. In case (b), the entire (solid) footprint of the LIMMS cover block on the substrate receives a layer of dielectric material, which may itself then be covered, save for near its perimeter, with suitable adhesive. In case (a) the outer cover may be soldered to the perimeter footprint. In case (b) the cover block may be soldered to dielectric layer. In another embodiment for cases (a) and (b) glass frit is used in place of solder. Disturbances to signal line impedance may be compensated by changes in signal conductor width. The layer of suitable dielectric material may be a thin sheet or gasket of previously patterned ceramic material, or it may be formed by the application of a thick film paste. Suitable thick film dielectric materials deposited as a paste and subsequently cured include the KQ 150 and KQ 115 thick film dielectrics from Heraeus and the 4141 A/D thick film compositions from DuPont.
    • 可能具有相同表面信号导体的衬底上的一个或多个LIMMS器件通过以下方式密封:(a)将每个整个LIMMS器件封闭在与LIMMS器件分开的通用或相应的外盖下方,并且不可渗透 污染物 或(b)制造每个LIMMS装置,使其单独的盖块(其已经是LIMMS的部件并且不是单独的外盖)可以与衬底气密密封。 每种情况都必须限制气密密封对阻抗的影响。 在(a)的情况下,衬底被与分离的外盖的周边的带状足迹相匹配的介电材料层覆盖。 在(b)的情况下,衬底上的LIMMS覆盖块的整个(实心)占地面积接收一层电介质材料,该材料层本身可以用合适的粘合剂在其周边附近被覆盖。 在(a)的情况下,外盖可以焊接到周边覆盖区。 在(b)的情况下,盖块可以焊接到电介质层。 在(a)和(b)的情况的另一实施例中,使用玻璃料代替焊料。 信号线阻抗的干扰可以通过信号导体宽度的变化来补偿。 合适的介电材料层可以是先前图案化的陶瓷材料的薄片或垫片,或者可以通过施加厚膜糊形成。 作为糊料沉积并随后固化的合适的厚膜电介质材料包括来自Heraeus的KQ 150和KQ 115厚膜电介质和来自DuPont的4141A / D厚膜组合物。
    • 4. 发明授权
    • Formation of signal paths to increase maximum signal-carrying frequency of a fluid-based switch
    • 信号路径的形成,以增加基于流体的开关的最大信号承载频率
    • US06894237B2
    • 2005-05-17
    • US10413855
    • 2003-04-14
    • Marvin Glenn WongJulius K. BotkaLewis R. Dove
    • Marvin Glenn WongJulius K. BotkaLewis R. Dove
    • H01H59/00H01H29/00H01H29/30
    • H01H29/30H01H29/004H01H2029/008
    • A switch has a channel plate that defines at least a portion of a number of cavities. A switching fluid is held within one or more of the cavities, and is movable between at least first and second switch states in response to forces that are applied to the switching fluid. A plurality of planar signal conductors extend from edges of the switch to within the one or more cavities holding the switching fluid, and are in wetted contact with the switching fluid. Corners in paths of the planar signal conductors may be limited to greater than 90°, about 135°, or equal to or greater than 135°. In one embodiment, signal path corners are so limited, but the planar signal conductors do not extend to the edges of the switch. In another embodiment, the one or more cavities holding the switching fluid are at least partly defined by a bent switching fluid channel.
    • 开关具有限定多个空腔的至少一部分的通道板。 开关流体保持在一个或多个空腔内,并且响应于施加到开关流体的力,可在至少第一和第二开关状态之间移动。 多个平面信号导体从开关的边缘延伸到保持开关流体的一个或多个空腔内,并与开关流体接触。 平面信号导体的路径中的角可以限制在大于90°,​​大约135°或等于或大于135°。 在一个实施例中,信号路径角受到限制,但是平面信号导体不延伸到开关的边缘。 在另一个实施例中,保持开关流体的一个或多个空腔至少部分地由弯曲的开关流体通道限定。
    • 5. 发明授权
    • Multi-layer assembly of stacked LIMMS devices with liquid metal vias
    • 具有液态金属通孔的堆叠LIMMS器件的多层组装
    • US06759610B1
    • 2004-07-06
    • US10455031
    • 2003-06-05
    • Lewis R. DoveMarvin Glenn Wong
    • Lewis R. DoveMarvin Glenn Wong
    • H01H2900
    • H01H29/28H01H2029/008
    • The number of LIMMS devices in an assembly is increased by stacking multiple layers of LIMMS devices on top of one another, and interconnecting those device layers at an array of solder pads using solder balls. Each device layer uses vias to bring the needed conductors to the array of solder pads. All signals for the entire multi-layer assembly can be routed through the bottom LIMMS device layer to pass, through another array of solder pads onto a “mother substrate” of ceramic or other material that carries the multi-layer assembly. Alternatively, signals may enter or leave the upper LIMMS device layer by way of a flexible printed circuit harness. Vias may pass, either directly or by “dog legs” on interior surfaces, completely through the bottom LIMMS device layer, and through other device layers as needed. Opposing vias formed in the pair of substrates in a device layer have interior non-contacting pads that are bridged by a small ball of liquid metal held in place by a hole in a dielectric layer. Using patterned layers of dielectric to form bridging holes, cavities, channels and interconnecting passages for the LIMMS devices of both layers facilitates these needed vias and traces. Suitable thick film dielectric materials that may be deposited as a paste and subsequently cured include the KQ 150 and KQ 115 thick film dielectrics from Heraeus and the 4141A/D thick film compositions from DuPont.
    • 组装中LIMMS器件的数量通过将多层LIMMS器件堆叠在一起而增加,并且使用焊球将焊盘阵列上的那些器件层互连在一起。 每个器件层使用通孔将所需的导体带到焊盘阵列上。 用于整个多层组件的所有信号可以通过底部LIMMS器件层通过另一个焊盘阵列传递到陶瓷或承载多层组件的其它材料的“母体衬底”上。 或者,信号可以通过柔性印刷电路线束进入或离开上LIMMS设备层。 通孔可以直接或通过内表面上的“狗腿”完全通过底部LIMMS设备层,并根据需要通过其他设备层。 在器件层中的一对衬底中形成的相反的通孔具有内部非接触焊盘,其通过由电介质层中的孔保持就位的液体金属的小球桥接。 使用图案化的电介质层形成桥接孔,用于两层的LIMMS器件的空腔,通道和互连通道便于这些所需的通孔和迹线。 可以作为糊料沉积并随后固化的合适的厚膜电介质材料包括来自Heraeus的KQ 150和KQ 115厚膜电介质和来自DuPont的4141A / D厚膜组合物。
    • 6. 发明授权
    • Method and apparatus for computer-aided design of different-sized RF
modular hybrid circuits
    • 用于不同尺寸RF模块混合电路的计算机辅助设计的方法和装置
    • US05999861A
    • 1999-12-07
    • US872285
    • 1997-06-10
    • Lewis R. DoveDaniel J. Miller
    • Lewis R. DoveDaniel J. Miller
    • G06F17/50G06F19/00G06G7/66
    • G06F17/5068
    • A method and apparatus is presented for designing an RF modular hybrid circuit assembly. The apparatus comprises a rule-based control mechanism, a graphical user interface and a library of RF hybrid elements including model front- and back-sides, and input/output instances. The method comprises the steps of initializing standardized front- and back-plane models, adding input/output instances along the perimeter of the back-plane, designing the hybrid circuit on the front-plane and combining the two planes to arrive at an RF modular hybrid layout design. A data library of RF hybrid elements is provided to facilitate rapid prototyping. The final design is then sent concurrently to a photo-plotter and a laser subsystem for printing the thick-film and cutting the PTHs respectively.
    • 提出了一种用于设计RF模块化混合电路组件的方法和装置。 该装置包括基于规则的控制机制,图形用户界面和包括模型前端和后端以及输入/输出实例的RF混合元件库。 该方法包括以下步骤:初始化标准化的前平面模型和后平面模型,沿着背面的周边添加输入/输出实例,在前平面上设计混合电路并组合两个平面以得到RF模块 混合布局设计。 提供RF混合元件的数据库,以促进快速原型设计。 然后将最终设计同时发送到光绘图仪和用于印刷厚膜并分别切割PTH的激光子系统。