Method of encapsulating an electronic device
    23.
    发明授权
    Method of encapsulating an electronic device 失效
    封装电子设备的方法

    公开(公告)号:US5568684A

    公开(公告)日:1996-10-29

    申请号:US181072

    申请日:1994-01-14

    Inventor: Ching-Ping Wong

    Abstract: An electronic device (12, 13) is substantially enclosed by a fluid encapsulant (17). The fluid encapsulant consists essentially of a silicone resin and a catalyst selected from the group consisting of platinum and tin. The silicone resin is selected from the group consisting of polydimethlysiloxane, polymethylphenylsiloxane, polydimethyldiphenylsiloxane, and mixtures thereof. Such silicone resins comprise molecules terminating in vinyl components and hydride components. The molar ratio of vinyl components to hydride components is maintained within the range of five to twenty. As will be explained more fully later, this ratio of vinyl components to hydride components assures that the resin will remain substantially a liquid even after cure, due to limited cross-linking or polymerization during the cure. The electronic device is contained within a container (16) having a sealed cover (18) for containing the liquid encapsulant during the operation of the electronic device.

    Abstract translation: 电子设备(12,13)基本上由流体密封剂(17)封闭。 流体密封剂基本上由硅树脂和选自铂和锡的催化剂组成。 有机硅树脂选自聚二甲基硅氧烷,聚甲基苯基硅氧烷,聚二甲基二苯基硅氧烷及其混合物。 这种有机硅树脂包括终止于乙烯基组分和氢化物组分的分子。 乙烯基组分与氢化物组分的摩尔比保持在5至20的范围内。 如下文将更全面地说明的,乙烯基组分与氢化物组分的比率确保了即使在固化之后,由于固化期间交联或聚合的限制,树脂仍将基本上保持液体。 电子设备包含在具有用于在电子设备的操作期间容纳液体密封剂的密封盖(18)的容器(16)内。

    Method for fixturing modules
    24.
    发明授权
    Method for fixturing modules 失效
    固定模块的方法

    公开(公告)号:US5405566A

    公开(公告)日:1995-04-11

    申请号:US135645

    申请日:1993-10-14

    Abstract: A module, such as a terminal block (10), configured of a body (12) having an open end (20) and at least one window (24) spaced from the open end, is fixtured and sealed by way of a channel (28) comprised of a pair of parallel, spaced-apart, generally elastic walls (30,32) jointed by a bottom member (34). The walls (30,32) and the bottom member (34) run longitudinally a distance at least as long as the width of the terminal block (10) to allow the block to be received between, and to be held by, the walls. At least one protrusion extends out from a separate one of the walls (30,32) and the base member (34) for receipt in the window (24) in the terminal block to seal the same.

    Abstract translation: 诸如端子块(10)的模块由具有开口端(20)的主体(12)和与开口端间隔开的至少一个窗口(24)构成,通过通道(...)固定和密封 28)包括由底部构件(34)连接的一对平行的,间隔开的,大致弹性的壁(30,32)。 壁(30,32)和底部构件(34)纵向延伸至少与端子块(10)的宽度一样长的距离,以允许块被容纳在壁之间并由壁保持。 至少一个突出部从单独的一个壁(30,32)和基部构件(34)中伸出,以便接收在端子块中的窗口(24)中,以密封它们。

    Silicone encapsulant
    25.
    发明授权
    Silicone encapsulant 失效
    硅胶密封剂

    公开(公告)号:US5213864A

    公开(公告)日:1993-05-25

    申请号:US802579

    申请日:1991-12-05

    Inventor: Ching-Ping Wong

    Abstract: An electronic device encapsulant comprises polydimethyldiphenylmethylphenylsiloxane in which the mole ratio of the sum of the methyl-phenyl and diphenyl groups to the dimethyl groups is in the range of ten to forty percent. The normal bi-functional hydride terminations are replaced with tri-functional or tetra-functional hydride terminations.

    Abstract translation: 电子器件密封剂包括聚二甲基二苯基甲基苯基硅氧烷,其中甲基 - 苯基和二苯基与二甲基之和的摩尔比在十至百分之四十的范围内。 正常的双官能氢化物终端用三官能或四官能氢化物终止物代替。

    Silicone encapsulated devices
    27.
    发明授权
    Silicone encapsulated devices 失效
    硅胶封装装置

    公开(公告)号:US4592959A

    公开(公告)日:1986-06-03

    申请号:US673011

    申请日:1984-11-19

    Inventor: Ching-Ping Wong

    Abstract: A method of extending the shelf-life of an uncured silicone resin formulation which includes a primary amine therein comprises adding an acid to the formulation in a molar quantity approximately equal to the number of moles of primary amine present in the formulation, said acid being volatile at or below the curing temperature of the resin formulation.

    Abstract translation: 包括伯胺在内的未固化的有机硅树脂配方的保质期的方法包括以约等于制剂中存在的伯胺的摩尔数的摩尔量向制剂中加入酸,所述酸是挥发性的 处于或低于树脂制剂的固化温度。

    Encapsulated electronic circuit
    28.
    发明授权
    Encapsulated electronic circuit 失效
    封装电子电路

    公开(公告)号:US4508758A

    公开(公告)日:1985-04-02

    申请号:US453004

    申请日:1982-12-27

    Inventor: Ching-Ping Wong

    CPC classification number: H01L21/56 H01L23/296 H01L2924/0002 Y10T29/49146

    Abstract: In the manufacture of encapsulated hybrid circuits from a substrate having a plurality of such circuits contained thereon, individual devices are first mounted on the circuit, encapsulant having a yield point stress and viscosity so as not to creep or flow is applied around the periphery of each circuit on the substrate so as to form a wall or dam around each such circuit except for the bonding pads for external connection of each circuit, a second encapsulant is then flow coated over the circuit and devices contained thereon within the previously formed wall such that the second encapsulant is retained within the wall. The encapsulants are then cured or dried and the individual encapsulated circuit can then be further processed such as by separating the individual circuits on the substrate and applying external connectors to the bonding pads.

    Abstract translation: 在从包含多个这样的电路的基板制造封装的混合电路中,首先将单独的器件安装在电路上,具有屈服点应力和粘度的密封剂,以便不会蠕变或流动施加在每个 电路,以便除了用于每个电路的外部连接的接合焊盘之外围绕每个这样的电路形成一个壁或坝,然后将第二密封剂流过涂覆在电路上,并且其上装载在先前形成的壁内的装置,使得 第二密封剂保留在壁内。 然后将密封剂固化或干燥,然后可以进一步处理单个封装的电路,例如通过分离衬底上的各个电路并将外部连接器施加到接合焊盘。

    Method of removing a cured epoxy from a metal surface
    29.
    发明授权
    Method of removing a cured epoxy from a metal surface 失效
    从金属表面去除固化的环氧树脂的方法

    公开(公告)号:US4171240A

    公开(公告)日:1979-10-16

    申请号:US900367

    申请日:1978-04-26

    Inventor: Ching-Ping Wong

    Abstract: A method of removing a cured epoxy from a surface is disclosed. The method comprises treating at least the epoxy with a suitable swelling agent to swell the epoxy. The swelled epoxy is then treated with an oxidizing agent to oxidize the swelled epoxy. The oxidized epoxy is then treated with an etchant comprising sulfuric acid to remove the epoxy from the surface.

    Abstract translation: 公开了从表面除去固化的环氧树脂的方法。 该方法包括用合适的溶胀剂处理至​​少环氧树脂以溶胀环氧树脂。 然后用氧化剂处理溶胀的环氧化物以氧化溶胀的环氧树脂。 然后用包含硫酸的蚀刻剂处理氧化的环氧树脂以从表面除去环氧树脂。

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