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1.发明授权
公开(公告)号：US5151777A
公开(公告)日：1992-09-29
申请号：US422395
申请日：1989-10-16
IPC分类号： H05K7/20 , H01L23/373
CPC分类号： H01L23/3735 , H01L2224/32225 , Y10T428/12486
摘要： An interface device for thermally coupling an integrated circuit to a heat sink having a first material characterized by high thermal conductivity such as copper, where the copper completely surrounds a plurality of inner core regions. The plurality of inner core regions contain a low coefficient of thermal expansion material and are primarily disposed in the copper material in the region directly under the integrated circuit. The low expansion regions retard thermal expansion of the interface device during exposure to variations in the temperature, yet there are continuous paths of copper provided between the integrated circuit and heat sink to promote efficient heat transfer between the silicon chip to the heat sink through the high conductivity copper. In addition, high thermal resistance layers are provided for dielectric isolation between an integrated circuit chip and heat sink, when necessary, using this invention. This interface device is characterized by enhanced thermal dissipation yet provides a compatible coefficient of thermal expansion with the silicon integrated circuit and underlying heat sink.
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公开(公告)号：US06193385B1
公开(公告)日：2001-02-27
申请号：US09265681
申请日：1999-03-10
申请人： William M. Maki , Scott A. Kwit
发明人： William M. Maki , Scott A. Kwit
IPC分类号： F21V21108
CPC分类号： B60Q7/00 , E01F9/615 , F21L2/00 , F21W2111/10 , F21Y2115/10 , H05B33/0803 , Y02B20/341
摘要： A removable, reusable safety light comprises a light strip and a protective jacket. The light strip comprises a plurality of microlights, such as LEDs, connected together in parallel by electrical lead wires and encased in a weather and shock resistant microlight protective housing. Control circuitry is provided for controlling operation of the light strip, and comprises control electronics and a printed circuit board. A power source, such as a battery, is included for powering the light strip. The battery is connected to the plurality of microlights via the control circuitry. The control electronics, printed circuit board and battery are housed in a control circuitry housing affixed to the microlight housing tube. The protective jacket is configured to hold the light strip, and can be configured for removably mounting the safety light on an object or the clothing of an individual.
摘要翻译： 一个可拆卸的，可重复使用的安全灯包括一个灯条和一个保护套。 光条包括由电引线并联连接在一起的多个微光灯，例如LED，并被封装在防风雨和防震的微光保护壳体中。 提供控制电路用于控制光条的操作，并且包括控制电路和印刷电路板。 包括诸如电池的电源用于为光条供电。 电池通过控制电路连接到多个微光。 控制电子器件，印刷电路板和电池被容纳在固定到微光灯管管的控制电路外壳中。 保护套被配置为保持灯条，并且可以被配置为可拆卸地将安全灯安装在物体或个人的衣物上。
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公开(公告)号：US5233871A
公开(公告)日：1993-08-10
申请号：US786614
申请日：1991-11-01
CPC分类号： H05K5/0047 , G01P1/023
摘要： A microaccelerometer package is provided for use in on-board automotive safety control and navigational systems. The microaccelerometer package is constructed so as to minimize the influence of extraneous mechanical stress and vibrational resonance on the micromachined accelerometer. The microaccelerometer package includes a rigid housing in which there is a cavity for receiving the micromachined accelerometer unit and the signal-processing circuitry. The lower surface of the cavity is interrupted by a recess projecting below the plane of the lower surface. The micromachined accelerometer unit is secured within the recess so as to be below the plane of the lower surface. The signal-processing circuitry is supported by a substrate which is secured to the lower surface of the cavity. One edge of the substrate, on which are disposed a number of wire bond sites, partially projects over the accelerometer unit within the recess, but no further than a corresponding number of wire bond sites on the micromachined accelerometer unit. Electrically interconnecting the wire bond sites of the signal-processing circuitry and the micromachined accelerometer unit are a corresponding number of electrical conductors.
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