Method for bonding two surfaces together
    1.
    发明授权
    Method for bonding two surfaces together 失效
    将两个表面粘合在一起的方法

    公开(公告)号:US5462628A

    公开(公告)日:1995-10-31

    申请号:US232417

    申请日:1994-04-25

    Abstract: Certain organic polymeric materials are capable of reversibly accepting or donating electrons from a reducing entity. The redox sites in the polymer accept electrons and, as a result, a change in the properties of the polymer occurs. This change is useful in modifying or etching the polymeric material. The material can be modified by incorporation of metallic seeds into the material at a controlled depth. The seeds are incorporated by interaction of cations of the metals with the redox sites in the polymer, which cause the reduction of the cations to form the neutral metallic seeds. Subsequent exposure of the polymeric material containing the seeds to an electroless bath causes further deposition of metal having the desirable characteristic of good adhesion to the polymeric material. Etching of the polymeric material can be carried out as a result of an increase in solubility of the polymer in aprotic solvents when its redox sites have accepted electrons. The increased solubility allows openings to be etched in certain areas of the polymeric material that have been reduced, leaving other areas unchanged.

    Abstract translation: 某些有机聚合材料能够可逆地接受或捐赠来自还原剂的电子。 聚合物中的氧化还原位点接受电子,结果发生聚合物的性质变化。 该改变可用于改性或蚀刻聚合物材料。 可以通过在受控的深度将金属种子并入材料中来修饰材料。 种子通过金属阳离子与聚合物中的氧化还原位点的相互作用而引入,这导致阳离子还原形成中性金属种子。 随后将含有种子的聚合材料暴露于无电镀浴中,导致具有对聚合物材料具有良好粘附性的所需特性的金属的进一步沉积。 聚合物材料的蚀刻可以作为聚合物在非质子传递溶剂中当其氧化还原位点已经接受电子时的溶解度增加的结果进行。 增加的溶解度允许在已经还原的聚合物材料的某些区域中蚀刻开口,留下其它区域不变。

    Electromagnetic head with separate addressability resolution and imaging
resolution functions
    4.
    发明授权
    Electromagnetic head with separate addressability resolution and imaging resolution functions 失效
    电磁头具有独立的寻址能力分辨率和成像分辨率功能

    公开(公告)号:US4725850A

    公开(公告)日:1988-02-16

    申请号:US027710

    申请日:1987-03-19

    CPC classification number: B41J2/43

    Abstract: An electromagnetic printhead is fabricated with a common flux returning backplate and an array of writing elements extending from the common backplate. The writing elements consist of large pedestals and small pedestals. The placement of the large pedestals provides addressability resolution; the small pedestals provide imaging resolution. The large pedestals accept electromagnetic flux from addressing conductors and transfer the flux through the respectively related small pedestals to an image receptor. There are several fabrication techniques which are eased by the separation of addressability resolution and imaging resolution, primarily because the wide separation of the large pedestals required for the addressing conductors mandate relatively massive removal of material and thus suggest relatively low precision machining techniques. The imaging resolution requires both high spacial precision and accurate dimension control, normally achievable by relatively high precision techniques. With the functions addressability resolution and imaging resolution functions separately provided, the best and most economical techniques may be used for each. The magnetic flux path for recording may be either vertical or in-plane, and the flux return may be common via the relatively low reluctance path provided by very large area paths through the mass of nonferromagnetic material to the common flux returning backplate. This simplified printhead lends itself to the use of standard flexible circuit fabrication techniques for the addressing conductors.

    Abstract translation: 制造电磁打印头具有常见的磁通返回背板和从公共背板延伸的书写元件阵列。 书写元素由大型基座和小座构成。 大基座的放置提供了可寻址性分辨率; 小基座提供成像分辨率。 大基座接受来自寻址导体的电磁通量,并将磁通通过相应的小基座转移到图像接收器。 存在通过分离寻址能力分辨率和成像分辨率而减轻的几种制造技术,主要是因为寻址导体所需的大基座的宽分离需要相对大量的材料去除并因此提出相对低精度的加工技术。 成像分辨率需要高空间精度和精确的尺寸控制,通常可以通过相对较高的精度技术实现。 通过独立提供的功能寻址能力分辨率和成像分辨率功能,可以使用最佳和最经济的技术。 用于记录的磁通路径可以是垂直的或平面的,并且磁通返回可以通过通过穿过非铁磁材料的非常大的面积路径提供给相同的磁通返回背板而提供的相对低的磁阻路径是共同的。 这种简化的打印头本身适用于寻址导体的标准柔性电路制造技术。

    Flexible finned heat exchanger
    7.
    发明授权
    Flexible finned heat exchanger 失效
    柔性翅片换热器

    公开(公告)号:US5022462A

    公开(公告)日:1991-06-11

    申请号:US492601

    申请日:1990-03-12

    Abstract: A heat exchanger for cooling an array of electric circuit chips disposed on a common substrate is formed as a flexible sheet of thermally conducting material with upstanding fins for transference of heat from the chips to a coolant flowing through the fins. Pin fins may be employed with air coolant. The sheet may be provided with corrugations set between sites of the chips for improved flexibility to accommodate individual orientations of the chips. The sheet is sufficiently large to cover an array of chips and is thermally joined, as by use of a thermally conductive grease, to the chips. The sheet hermetically seals the chips from contamination by the coolant. For liquid coolant, the heat exchanger may be fabricated of copper with a nickel coating, wherein the copper provides the heat conduction and the nickel protects the copper from a corrosive coolant such as water. In one embodiment of the heat exchanger, the fin thickness, the fin spacing and the sheet thickness are all approximately equal, a typical sheet thickness being approximately two mils. Another embodiment uses air cooling, and uses metal pin fins bonded to a metal sheet which is moderately thin and flexible. Transverse motion between the sheet and the array of chips is introduced concurrently with the application of pressure between the sheet and the chips to reduce the thickness of the layers of grease between the chips and the sheet, thereby to improve thermal conductivity between the heat exchanger and each of the chips.

    Abstract translation: 用于冷却设置在共同基板上的电路芯片的阵列的热交换器形成为具有用于将热从芯片传递到流过翅片的冷却剂的直立翅片的导热材料的柔性片。 引脚散热片可以与空气冷却剂一起使用。 片材可以设置在芯片的位置之间设置的波纹,以提高柔性以适应芯片的各个取向。 片材足够大以覆盖芯片阵列,并且通过使用导热油脂与芯片热连接。 片材气密地密封芯片以免受冷却剂的污染。 对于液体冷却剂,热交换器可以由具有镍涂层的铜制成,其中铜提供热传导,并且镍保护铜免受诸如水的腐蚀性冷却剂的影响。 在热交换器的一个实施例中,翅片厚度,翅片间距和片材厚度大致相等,典型的片材厚度约为2密耳。 另一实施例使用空气冷却,并且使用结合到中等薄度和柔性的金属片的金属销散热片。 片材与芯片阵列之间的横向运动与片材和芯片之间的压力施加同时引入,以减小芯片和片材之间的润滑脂层的厚度,从而改善热交换器和 每个芯片。

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