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公开(公告)号:US06326677B1
公开(公告)日:2001-12-04
申请号:US09146826
申请日:1998-09-04
申请人: Terry R. Bloom , Stephen W. Burry , Lewis L. Seffernick , Robert M. VandenBoom , John Zdanys, Jr.
发明人: Terry R. Bloom , Stephen W. Burry , Lewis L. Seffernick , Robert M. VandenBoom , John Zdanys, Jr.
IPC分类号: H01L101
CPC分类号: H01C1/144 , H01C1/16 , H01L2924/15311 , H05K1/092 , H05K1/095 , H05K1/141 , H05K1/167 , H05K2201/10045 , H05K2201/10734 , H05K2203/041
摘要: A ball grid array resistor network has a substrate that has top and bottom surfaces. Resistors are disposed on the top surface. Conductors are disposed on the top surface, and each conductor is electrically connected to an end of each resistor. Vias extend through the substrate and are electrically connected to the conductors. Solder spheres are disposed on the bottom surface, and are electrically connected to the vias. A cover coat is disposed over the conductors and resistors. In an alternative embodiment, the vias are eliminated and the resistor network is formed on the bottom surface of the substrate. The resistor network provides a high density of resistors per unit area.
摘要翻译: 球栅阵列电阻网络具有具有顶表面和底表面的基底。 电阻器设置在顶表面上。 导体设置在顶表面上,并且每个导体电连接到每个电阻器的一端。 通孔延伸穿过基板并与导体电连接。 焊球设置在底表面上,并且电连接到通孔。 导体和电阻器上设置覆盖层。 在替代实施例中,消除了通孔,并且电阻网络形成在衬底的底表面上。 电阻网络提供每单位面积的高密度电阻。
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公开(公告)号:US4376085A
公开(公告)日:1983-03-08
申请号:US156387
申请日:1980-06-04
申请人: Stephen W. Burry
发明人: Stephen W. Burry
CPC分类号: B30B11/005 , B28B17/0081
摘要: In a hydraulic press for briquetting loose powders into green components, a load cell senses maximum compacting force. The maximum compacting force is compared with a compacting standard force known to effect a particular weight and density of compacted briquette. There is next operated a closed-loop servo network which adjusts the peak force to the standard force by varying the initial size of the cavity receiving the loose powders. Should the peak force be greater or less than standard force, an actuating mechanism is energized either to enlarge or diminish the die cavity for receiving the powder. If the peak force is too small, the initial die cavity size is enlarged so that a greater amount of powder is charged to the die cavity. The result is that when the final configuration of the briquette is reached, there will be greater density and greater weight to the briquette, causing it to more nearly approximate a standard briquette weight and density. Conversely, the die cavity is automatically initially reduced in the event that compacting maximum force is too great so that the final compacted briquette will contain less powder, thus reducing the density and weight and thereby adjusting the finished product to a standard briquette size and density.
摘要翻译: 在用于将松散粉末压块成绿色部件的液压机中,负载传感器感测最大压实力。 将最大压实力与已知压实压块的特定重量和密度的压实标准力进行比较。 接下来,运行一个闭环伺服网络,通过改变接收松散粉末的空腔的初始尺寸来调整标准力的峰值力。 如果峰值力大于或小于标准力,则致动机构被激励以增大或减小用于接收粉末的模腔。 如果峰值力太小,则初始模腔尺寸被扩大,使得更大量的粉末被填充到模腔中。 结果是当达到了团块的最终结构时,对于团块将具有更大的密度和更大的重量,导致其更接近近似于标准的团块重量和密度。 相反,在压实最大力太大的情况下,模腔自动初始地减少,使得最终压实的团块将含有较少的粉末,从而降低密度和重量,从而将成品调整成标准的团块尺寸和密度。
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公开(公告)号:US06239786B1
公开(公告)日:2001-05-29
申请号:US09201207
申请日:1998-11-30
申请人: Stephen W. Burry , Nelson T. Clark , Ronald J. Dedert , Mark Grube , Timothy L. Hartigan , David L. Poole , Dennis Raesner , Lewis L. Seffernick , Ronald Stuckey , Eric B. Taylor , Robert M. VandenBoom
发明人: Stephen W. Burry , Nelson T. Clark , Ronald J. Dedert , Mark Grube , Timothy L. Hartigan , David L. Poole , Dennis Raesner , Lewis L. Seffernick , Ronald Stuckey , Eric B. Taylor , Robert M. VandenBoom
IPC分类号: G09G508
CPC分类号: G06F3/0213 , G06F3/0338
摘要: A pointing stick for controlling the positioning, movement and operation of a cursor on the display screen. Specifically, there is a pointing stick that both directs a cursor and acts as the activation button for selecting items on the display screen by tapping on the pointing stick instead of clicking on a mouse button. Uniquely, the device is made of a shaft (12) having a longitudinal length oriented along a first axis (39) and having a top surface that is perpendicular to the first axis, there is a vertical force sensor (59, or 71), mounted on the top surface of the shaft, for sensing a vertical oriented force applied to the shaft along the first axis. Cap (24), has a cavity (81) with a top surface (79) therein, where the top surface of the shaft is positioned within the cavity and spaced from and juxtaposed to the top surface of the cavity. In one embodiment the vertical sensor includes first and second electrically conductive pads that are electrically isolated from each other. The vertical sensor also has a flexible conductive layer positioned next to the top surface of the cavity of the cap. Additionally, the vertical sensor has an electrically insulative spacer (78) shaped to position the first and second pads away from the flexible conductive layer. In a second embodiment, the vertical sensor comprises a pressure sensitive layer (60) located on the top surface of the shaft. Additionally, the alternative vertical sensor has a strain concentrator, shaped and positioned to concentrate a z-axis oriented force applied to the cap to effect the electrical conductivity of the pressure sensitive layer.
摘要翻译: 用于控制显示屏上光标的定位,移动和操作的指示杆。 具体来说,有一个指点杆既指向光标,也可以作为激活按钮,通过点击指点杆而不是单击鼠标按钮来选择显示屏幕上的项目。 独特地,该装置由具有沿着第一轴线(39)定向并且具有垂直于第一轴线的顶表面的纵向长度的轴(12)制成,存在垂直力传感器(59或71) 安装在轴的顶表面上,用于感测沿着第一轴施加到轴的垂直取向力。 盖(24)具有其中具有顶表面(79)的空腔(81),其中轴的顶表面位于空腔内并与空腔的顶表面间隔开并且并置。 在一个实施例中,垂直传感器包括彼此电隔离的第一和第二导电焊盘。 垂直传感器还具有靠近盖的腔的顶表面定位的柔性导电层。 另外,垂直传感器具有形状为将第一和第二焊盘定位成远离柔性导电层的电绝缘间隔件(78)。 在第二实施例中,垂直传感器包括位于轴的顶表面上的压敏层(60)。 此外,备选的垂直传感器具有应变集中器,其形状和定位以集中施加到盖的z轴取向的力以实现压敏层的导电性。
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公开(公告)号:US6097277A
公开(公告)日:2000-08-01
申请号:US186453
申请日:1998-11-05
申请人: Steven N. Ginn , James N. Hufford , John Zdanys, Jr. , Stephen W. Burry , Lewis L. Seffernick , Robert M. VandenBoom
发明人: Steven N. Ginn , James N. Hufford , John Zdanys, Jr. , Stephen W. Burry , Lewis L. Seffernick , Robert M. VandenBoom
IPC分类号: H01C1/01 , H01C1/16 , H01L23/498 , H05K1/16 , H05K3/34
CPC分类号: H05K3/3436 , H01C1/01 , H01C1/16 , H01L23/49816 , H01L2924/0002 , H01L2924/3011 , H05K1/167 , H05K2201/09745 , H05K2201/10992 , H05K2203/041 , Y02P70/613
摘要: A resistor network has a substrate with top and side surfaces. Resistors are located on the side surfaces. Several side conductors are located on the side surface and are electrically connected to the resistors. Several top conductors are located on the top surface and are electrically connected to the side conductors. Each top conductor has a cavity. A solder sphere is partially located in the cavity and is electrically and mechanically connected to the top conductor by reflowed solder paste. A cover coat covers the side conductors and the resistors. The resistor network provides a high density of resistors per unit area.
摘要翻译: 电阻网络具有具有顶表面和侧表面的基底。 电阻器位于侧面。 多个侧导体位于侧表面并且电连接到电阻器。 几个顶部导体位于顶表面上并且电连接到侧导体。 每个顶部导体都有一个空腔。 焊球部分地位于空腔中,并通过回流焊膏与顶部导体电连接和机械连接。 覆盖层覆盖侧导体和电阻器。 电阻网络提供每单位面积的高密度电阻。
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公开(公告)号:US4413967A
公开(公告)日:1983-11-08
申请号:US415358
申请日:1982-09-07
申请人: Stephen W. Burry
发明人: Stephen W. Burry
CPC分类号: B28B17/0081 , B30B11/005
摘要: In a hydraulic press for briquetting loose powders into green compacts, a load cell senses maximum compacting force. The maximum compacting force is compared with a compacting standard force known to effect a particular weight and density of compacted briquette. There is next operated a closed-loop servo network which adjusts the peak force to the standard force by varying the initial size of the cavity receiving the loose powders. Should the peak force be greater or less than standard force, an actuating mechanism is energized either to enlarge or diminish the die cavity for receiving the powder. If the peak force is too small, the initial die cavity size is enlarged so that a greater amount of powder is charged to the die cavity. The result is that when the final configuration of the briquette is reached, there will be greater density and greater weight to the briquette, causing it to more nearly approximate a standard briquette weight and density. Conversely, the die cavity is automatically initially reduced in the event that compacting maximum force is too great so that the final compacted briquette will contain less powder, thus reducing the density and weight and thereby adjusting the finished product to a standard briquette size and density.
摘要翻译: 在用于将松散粉末压块成压坯的液压机中,负载传感器感测到最大压实力。 将最大压实力与已知压实压块的特定重量和密度的压实标准力进行比较。 接下来,运行一个闭环伺服网络,通过改变接收松散粉末的空腔的初始尺寸来调整标准力的峰值力。 如果峰值力大于或小于标准力,则致动机构被激励以增大或减小用于接收粉末的模腔。 如果峰值力太小,则初始模腔尺寸被扩大,使得更大量的粉末被填充到模腔中。 结果是当达到了团块的最终结构时,对于团块将具有更大的密度和更大的重量,导致其更接近近似于标准的团块重量和密度。 相反,在压实最大力太大的情况下,模腔自动初始地减少,使得最终压实的团块将含有较少的粉末,从而降低密度和重量,从而将成品调整成标准的团块尺寸和密度。
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