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    • 3. 发明申请
    • Electronic Device Sealing for A Downhole Tool
    • 井下工具电子装置密封
    • US20140185201A1
    • 2014-07-03
    • US14108297
    • 2013-12-16
    • Schlumberger Technology Corporation
    • Francois BarbaraVincent Martinez-Llorca
    • H05K5/06H05K7/14
    • H05K5/066E21B47/011H01L21/50H01L21/52H01L21/54H01L23/10H01L23/20H01L25/16H01L2924/0002H05K7/14H01L2924/00
    • Systems, methods, and devices that have a hermetic seal formed using reflow soldering are provided. The hermetic seal may protect electrical components within a packaging for use in downhole tools and/or other applications where the electrical components may be exposed to extreme environments. In one example, an electronic device includes a ceramic substrate having a plated ring. The electronic device also includes a metal lid. A high-temperature solder is disposed between the plated ring of the ceramic substrate and the metal lid. The electronic device includes a hermetically sealed cavity formed between the ceramic substrate and the metal lid. The hermetically sealed cavity is formed via a first bond between the plated ring of the ceramic substrate and the high-temperature solder, and via a second bond between the metal lid and the high-temperature solder. Moreover, the first and second bonds are formed using reflow soldering.
    • 提供了使用回流焊接形成气密密封的系统,方法和装置。 气密密封件可以保护包装内的电气部件以用于井下工具和/或电气部件可能暴露于极端环境的其它应用。 在一个示例中,电子设备包括具有电镀环的陶瓷基板。 电子设备还包括金属盖。 在陶瓷基板的镀覆环和金属盖之间设置高温焊料。 电子设备包括形成在陶瓷基板和金属盖之间的气密密封腔。 通过陶瓷基板的镀覆环和高温焊料之间的第一接合,以及金属盖和高温焊料之间的第二接合形成气密密封腔。 此外,第一和第二键通过回流焊接形成。