MICRODEVICE ASSEMBLY HAVING A FINE GRAIN GETTER LAYER FOR MAINTAINING VACUUM
    4.
    发明申请
    MICRODEVICE ASSEMBLY HAVING A FINE GRAIN GETTER LAYER FOR MAINTAINING VACUUM 审中-公开
    具有用于维护真空的精细颗粒容器的MICRODEVICE组件

    公开(公告)号:WO2004094298A3

    公开(公告)日:2005-01-20

    申请号:PCT/US2004003405

    申请日:2004-02-05

    Abstract: A microdevice assembly (20) that includes a device microstructure (22), a housing (30), and a fine grain getter layer (40). The housing (30) has a base portion (32) and a lid (34). The device microstructure (22) is attached to the base portion (32) and the lid (34) is hermetically sealed to the base portion (32). The housing (30) defines a cavity (38) surrounding the device microstructure (22). The fine grain getter layer (40) is on an interior side (42) of the lid (34) for maintaining a vacuum in the cavity (38) surrounding the device microstructure (22). The lid (34) may be made of metal or have at least a metallic surface in the region where the fine grain getter layer (40) is applied. The fine grain getter layer (40) has a sub-micron grain size. There is also a method for making the microdevice assembly (20).

    Abstract translation: 包括器件微结构(22),壳体(30)和细颗粒吸气剂层(40)的微器件组件(20)。 壳体(30)具有基部(32)和盖(34)。 装置微结构(22)附接到基部(32),并且盖(34)被气密地密封到基部(32)。 壳体(30)限定围绕器件微结构(22)的空腔(38)。 细颗粒吸气剂层(40)位于盖(34)的内侧(42)上,用于在包围装置微结构(22)的空腔(38)内保持真空。 盖(34)可以由金属制成,或者在施加微粒吸气剂层(40)的区域中至少具有金属表面。 细颗粒吸收剂层(40)具有亚微米粒度。 还有一种制造微型装置组件(20)的方法。

    METHOD AND APPARATUS FOR ANALYZING THE EFFECT OF DIFFERENT EXECUTION PARAMETERS ON THE PERFORMANCE OF A DATABASE QUERY
    7.
    发明申请
    METHOD AND APPARATUS FOR ANALYZING THE EFFECT OF DIFFERENT EXECUTION PARAMETERS ON THE PERFORMANCE OF A DATABASE QUERY 审中-公开
    分析不同执行参数对数据库查询性能的影响的方法和装置

    公开(公告)号:WO2007068667A1

    公开(公告)日:2007-06-21

    申请号:PCT/EP2006/069535

    申请日:2006-12-11

    CPC classification number: G06F17/30306 G06F17/30433 G06F17/30471

    Abstract: A database application re-uses one or more query execution strategies for a given logical query, and saves historical data concerning query execution performance under differing execution parameters. The historical data is analyzed to identify environmental variables and/or imported variables which significantly affect execution performance. Preferably, an auxiliary data structure includes, for each of multiple execution strategies, a respective set of imported and environmental variables and respective average cost measure, such as execution time. An analytical tool compares multiple different strategies to identify imported and/or environmental variables which caused a different strategy to be used, and resultant average cost. Preferably, the tool can also compare variation within the same strategy.

    Abstract translation: 数据库应用程序重新使用给定逻辑查询的一个或多个查询执行策略,并在不同的执行参数下保存有关查询执行性能的历史数据。 分析历史数据,以识别显着影响执行绩效的环境变量和/或导入变量。 优选地,对于多个执行策略中的每一个,辅助数据结构包括相应的一组导入和环境变量以及相应的平均成本度量,诸如执行时间。 分析工具比较了多种不同的策略来识别导致使用不同策略的进口和/或环境变量,从而导致平均成本。 优选地,该工具还可以比较相同策略中的变化。

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