Method of manufacturing multilayer electronic components
    95.
    发明授权
    Method of manufacturing multilayer electronic components 失效
    制造多层电子部件的方法

    公开(公告)号:US5758398A

    公开(公告)日:1998-06-02

    申请号:US673833

    申请日:1996-06-27

    Abstract: A method of manufacturing a plurality of multilayer electronic components, comprises the steps of: (a) Manufacturing a laminated sheet (1) in which layers of ceramic tape are each provided on one side with a pattern of electrodes; are stacked so that the electrode patterns on consecutive layers are offset back and forth with respect to one another, and are pressed together, cutting the laminated sheet into segments in which consecutive electrodes with a gas cooled laser beam, are alternately exposed at a different segment edge with a gas cooled laser beam; sintering the segments and providing electrical contacts which interconnect the electrodes exposed at given segment edges.

    Abstract translation: 一种制造多层多层电子部件的方法,包括以下步骤:(a)制造层叠片(1),其中一面具有电极图形的陶瓷带层; 层叠,使得连续层上的电极图案相对于彼此前后偏移,并被压在一起,将层叠片材切割成具有气体冷却激光束的连续电极的段,在不同的部分交替地暴露 边缘与气体冷却的激光束; 烧结段并提供电接触,​​其互连在给定段边缘处暴露的电极。

    Method for soldering a ceramic body of an electrical component into a
metal housing
    97.
    发明授权
    Method for soldering a ceramic body of an electrical component into a metal housing 失效
    将电气部件的陶瓷体焊接到金属壳体中的方法

    公开(公告)号:US5337939A

    公开(公告)日:1994-08-16

    申请号:US115933

    申请日:1993-09-01

    Inventor: Christian Block

    CPC classification number: B23K1/0016

    Abstract: A method for soldering a ceramic body of an electric component, such as a microwave resonator, into a metal housing, includes applying a tin layer over the ceramic body provided with an electrically conductive layer. A high-melting-point lead-tin passivation layer is applied to a surface of the housing to be soldered to the ceramic body.

    Abstract translation: 将诸如微波谐振器的电气部件的陶瓷体焊接到金属外壳中的方法包括在设置有导电层的陶瓷体上涂覆锡层。 将高熔点铅锡钝化层施加到要焊接到陶瓷体的壳体的表面。

    Method and apparatus for inspection of solder joints utilizing shape
determination from shading
    98.
    发明授权
    Method and apparatus for inspection of solder joints utilizing shape determination from shading 失效
    使用阴影形状确定检查焊点的方法和装置

    公开(公告)号:US5064291A

    公开(公告)日:1991-11-12

    申请号:US504460

    申请日:1990-04-03

    Applicant: Kurt Reiser

    Inventor: Kurt Reiser

    Abstract: Inspection of solder joints utilizing ilumination, reflected light intensity measurements to determine surface heights and comparison with predetermined inspection criteria to determine the integrity of the solder joint. A solder fillet (16b) is sequentially illuminated from first and second angles and optically scanned and reflected light intensity values at incremental values of inclination are measured. The heights of the fillet wall (16d) at predetermined points and the integrity of the fillet (16b) are determined using the measured reflected light intensity values and either using real-time computation or accessing an array of predetermined incremental inclination values as a function of the reflected light intensity values. Alternatively, the ratio of the sensed reflected light intensity values at each point may be used as an input variable to a one dimensional look-up table or for real-time computation. The solder fillet may be coated with a matte coating.

    Abstract translation: 使用照明,反射光强度测量来检查焊点以确定表面高度,并与预定的检查标准进行比较,以确定焊点的完整性。 焊接圆角(16b)从第一和第二角度顺序地照射,并且测量以渐变值倾斜的光学扫描和反射光强度值。 使用测量的反射光强度值确定在预定点处的圆角壁(16d)的高度和圆角(16b)的完整性,并且使用实时计算或访问预定增量倾斜值的阵列作为 反射光强度值。 或者,每个点处的感测反射光强度值的比率可以用作一维查找表的输入变量或用于实时计算。 焊锡圆角可以涂有无光泽涂层。

    Solder/polymer composite paste and method
    99.
    发明授权
    Solder/polymer composite paste and method 失效
    焊剂/聚合物复合材料和方法

    公开(公告)号:US5062896A

    公开(公告)日:1991-11-05

    申请号:US502090

    申请日:1990-03-30

    Abstract: An improved solder/polymer fluxless composite paste interconnection material having a low reflow temperature to form electrical contacts having good bonding strength and low contact resistance. The present pastes comprise a major proportion of a meltable metal alloy powder filler, free of noble metals and preferably free of lead, a minor proportion of a solution of a temperature-stable thermoplastic polymer having a softening temperature above the melting temperature of the metal powder filler in a volatile solvent which evaporates during reflow, and a minor proportion of a fluxing agent having a boiling point lower than the reflow temperature of the composition and higher than the melting point of the eutectic alloy powder filler. An oxide-free, partially coalesced metal alloy connection is obtained, which is polymer strengthened and reworkable at a low reflow temperature, per se, or in the presence of polymer solvent.

    Abstract translation: 具有低回流温度的改进的焊料/聚合物无焊剂复合糊剂互连材料,以形成具有良好的接合强度和低接触电阻的电触点。 本发明的糊料主要包括不含贵金属,优选不含铅的可熔融金属合金粉末填料的主要部分,较小比例的软化温度高于金属粉末的熔融温度的温度稳定的热塑性聚合物溶液 在回流时蒸发的挥发性溶剂中的填料,以及沸点低于组合物的回流温度并且高于共晶合金粉末填料的熔点的助熔剂的一小部分。 获得无氧化物,部分聚结的金属合金连接,其在低回流温度下或在聚合物溶剂的存在下聚合物增强并可再加工。

    METHOD AND LASER PROCESSING SYSTEM FOR LASER WELDING

    公开(公告)号:US20250058407A1

    公开(公告)日:2025-02-20

    申请号:US18706603

    申请日:2022-11-04

    Abstract: A method for laser welding a first and an at least partially overlapping second workpiece sheet along a machining path includes: detecting a distance from a reference to the first and to the second sheet at a plurality of positions; determining a gap width between the sheets based on the distances; and welding together the sheets by radiating the beam along the path and forming a weld seam. The laser beam power is adapted to the respective gap width along the path. A laser machining system for welding sheets using a machining laser beam includes: a distance measuring device detecting a distance to a first and second sheet at a plurality of positions; deflection optics guiding the beam along a machining path; and a control device determining a gap width between the sheets based on the distances. The control device adapts the laser beam power to the respective gap width.

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