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    • 5. 发明授权
    • Multilayer ceramic parts
    • 多层陶瓷件
    • US5683790A
    • 1997-11-04
    • US514796
    • 1995-08-14
    • Kazuaki SuzukiMakoto KobayashiTaro MiuraKeizou Kawamura
    • Kazuaki SuzukiMakoto KobayashiTaro MiuraKeizou Kawamura
    • C04B35/64C04B37/00H01L21/48H01P1/203H01P7/08H01P11/00H05K3/46B32B3/00B32B15/00C03C8/22C03C27/04
    • H01L21/4857H01P11/008Y10S428/901Y10T428/12618Y10T428/24917Y10T428/24926
    • A multilayer ceramic part including dielectric ceramic layers and internal conductor layers is prepared by forming dielectric ceramic layers from an oxide system dielectric ceramic material having a sintering completion temperature between the melting point and the boiling point of the internal conductor. A pattern of internal conductor is formed on dielectric ceramic layers. The dielectric ceramic layers are placed one on another so as to sandwich the internal conductor pattern therebetween. The laminate is fired at or above the melting point of the internal conductor, optionally in an atmosphere having a controlled oxygen partial pressure. Since the dielectric ceramic material has an improved dielectric constant and dielectric loss and the internal conductor is densified and improved in surface property, the part is improved in resonator Q value and other properties. This minimizes the occurrence of defective parts in which the internal conductor is separated from the dielectric ceramic layer and minimizes a failure in the internal conductor layer.
    • 通过从具有在内部导体的熔点和沸点之间的烧结完成温度的氧化物系介电陶瓷材料形成介电陶瓷层来制备包括电介质陶瓷层和内部导体层的多层陶瓷部件。 在介电陶瓷层上形成内部导体的图形。 电介质陶瓷层一个接一个地放置在其间夹着内部导体图案。 层压体在内部导体的熔点以上或任意地在具有受控氧分压的气氛中烧制。 由于介电陶瓷材料具有改善的介电常数和介电损耗,并且内部导体致密化并且表面性能得到改善,所以该部件在谐振器Q值和其它性能方面得到改善。 这使得内部导体与介电陶瓷层分离的缺陷部件的发生最小化,并使内部导体层的故障最小化。
    • 8. 发明授权
    • Cooling device of multi-chip module
    • 多芯片模块冷却装置
    • US5751062A
    • 1998-05-12
    • US571711
    • 1995-12-13
    • Takahiro DaikokuFumiyuki KobayashiNoriyuki AshiwakeKenichi KasaiKeizou KawamuraAkio Idei
    • Takahiro DaikokuFumiyuki KobayashiNoriyuki AshiwakeKenichi KasaiKeizou KawamuraAkio Idei
    • H01L23/36H01L23/433H01L23/367
    • H01L23/4338H01L2224/73253
    • A cooling device of a multi-chip module has micropackages that are independent of thermal deformation and easy to assembly and disassembly. The multi-chip module includes a multi-layer substrate on which the micropackages, each encasing an LSI chip, are mounted, and a housing formed integrally with a cooler. Each of the micropackages includes a first heat conduction member, having a cap portion for receiving the LSI chip and a first fin made of the same material as the cap portion to be integral therewith, and a substrate fixed to the cap portion of the first heat conduction member, the LSI chip being mounted on the substrate which is securely fixed to the cap portion of the heat conduction member while being fixedly joined at the back surface thereof to an inner surface of the cap portion of the first heat conduction member. Second heat conduction members, each including a base portion and a second fin, are disposed to engage with the first fins and be pressed against the cooler by a spring, respectively.
    • 多芯片模块的冷却装置具有独立于热变形和易于组装和拆卸的微封装。 多芯片模块包括多层基板,其上安装有每个包装LSI芯片的微封装以及与冷却器一体形成的壳体。 每个微封装包括第一导热构件,具有用于容纳LSI芯片的盖部分和与其一体形成的与盖部分相同的材料制成的第一鳍片,以及固定到第一热量帽盖部分的基板 所述LSI芯片被安装在所述基板上,所述基板被牢固地固定到所述导热部件的盖部,同时在其背面牢固地接合到所述第一导热部件的盖部的内表面。 每个包括基部和第二翅片的第二热传导构件设置成与第一翅片接合并且分别通过弹簧压靠在冷却器上。