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公开(公告)号：US6392530B2
公开(公告)日：2002-05-21
申请号：US86671101
申请日：2001-05-30
发明人： SUZUKI ETSUJI
摘要： A plurality of protective resistors can be easily inserted between circuit forming elements, and opposite ends of each protective resistor can be properly press-contacted to each circuit forming element. The protective resistor can be easily replaced when broken. A resistor array board comprises a porous plate having a plurality of through-holes arranged in array and opening at opposite surfaces thereof; and a plurality of protective resistors removably loosely inserted into the through-holes, respectively. Each of the protective resistors are resiliently retained by an electrically conductive spring element, and opposite ends of each of the protective resistors are press-contacted with the circuit forming elements which are arranged in opposing relation on surfaces of the porous plates.
摘要翻译： 多个保护电阻器可以容易地插入电路形成元件之间，并且每个保护电阻器的相对端可以适当地压接到每个电路形成元件。 破损时可以方便地更换保护电阻。 电阻器阵列板包括多孔板，其具有排列成阵列并在其相对表面处开口的多个通孔; 以及分别可移除地松动地插入到通孔中的多个保护电阻。 每个保护电阻由导电弹簧元件弹性地保持，并且每个保护电阻器的相对端部与在多孔板的表面上以相对关系布置的电路形成元件压接。
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公开(公告)号：US5661450A
公开(公告)日：1997-08-26
申请号：US560206
申请日：1995-11-21
申请人： Howard L. Davidson
发明人： Howard L. Davidson
CPC分类号： H04L25/0298 , H01C1/14 , H01C1/16 , H01C10/46 , Y10T29/49099
摘要： An array of termination resistors has symmetrical geometry producing essentially no net magnetic field and a resultant low inductance is fabricated on a substrate as disk resistors. Conductive through vias are formed in the substrate in an array pattern defining what will be resistor first and second contacts. Each disk resistor has one first contact located at the resistor disk center, and preferably four second contacts located symmetrically about the resistor disk and shared by four adjacent disk resistors. For each resistor, a annular-shaped disk of resistive material is fabricated on a first surface of the substrate, such that a central opening in the disk overlies at least the upper surface of a first contact via. The disk geometry and material determines its resistance. Next, a layer of conductive material is formed over the first surface of the substrate to cover at least the periphery of each disk, and to fill the central opening in each disk. This conductive material electrically couples at least the periphery of each resistive disk with each second contact via to define V.sub.T nodes, and also separately electrically couples the disk center to the underlying first contact via. Solder balls at the lower surface of each via provide an array of first and second contacts for each resistor for attaching the substrate to a printed wiring board or other substrate. An array may include hundreds of termination resistors having substantially real impedances in the range of 50 .OMEGA. to 100 .OMEGA. at frequencies up to about 12 GHz.
摘要翻译： 终端电阻器阵列具有基本上不产生净磁场的对称几何形状，并且在基板上制造作为圆盘电阻器的合成低电感。 通过通孔的导电以阵列图案形成在衬底中，该阵列图形限定了将是电阻器第一和第二接触的部件。 每个盘式电阻器具有位于电阻器盘中心处的一个第一触点，并且优选地四个位于电阻器盘对称并且由四个相邻的磁盘电阻器共享的四个第二触点。 对于每个电阻器，在衬底的第一表面上制造电阻材料的环形盘，使得盘中的中心开口至少覆盖第一接触通孔的上表面。 磁盘几何和材料决定其电阻。 接下来，在基板的第一表面上形成导电材料层，以覆盖至少每个盘的周边，并填充每个盘中的中心开口。 该导电材料至少将每个电阻盘的周边与每个第二接触通孔电耦合以限定VT节点，并且还将盘中心分别电耦合到下面的第一接触通孔。 在每个通孔的下表面处的焊球提供用于每个电阻器的第一和第二触点的阵列，用于将衬底附接到印刷线路板或其它衬底。 在高达约12GHz的频率下，阵列可以包括数百个终端电阻器，其具有基本上实际阻抗在50欧姆到100欧姆的范围内。
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公开(公告)号：US5929746A
公开(公告)日：1999-07-27
申请号：US543106
申请日：1995-10-13
CPC分类号： H01C1/14 , H01C7/06 , H05K1/141 , H05K1/167 , H05K3/0097 , H05K3/3442 , H05K3/403
摘要： A surface mounted thin film precision voltage divider is provided by incorporating two resistors on a single base of the same size and configuration as prior art surface mounted thin film precision resistors. Because the resistors were made at the same time, using the same materials and under the same conditions, the resistors react substantially equally to changes in temperature, aging, thermal shock, short time overload, high temperature exposure, resistance to bond exposure, moisture resistance, load life and low temperature operation. The voltage divider replaces two conventional surface mounted thin film precision resistors at a fraction of the cost.
摘要翻译： 通过在与现有技术的表面安装的薄膜精密电阻器相同的尺寸和配置的单个基底上并入两个电阻器来提供表面安装的薄膜精密分压器。 由于电阻是同时制造的，所以使用相同的材料并且在相同的条件下，电阻基本上等同于温度，老化，热冲击，短时间过载，高温暴露，耐接触粘接，耐潮湿性的变化 ，负载寿命和低温运行。 分压器代替了两种常规的表面贴装薄膜精密电阻器，成本仅为成本的一小部分。
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