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    • 36. 发明授权
    • Dual port pressure sensor
    • 双口压力传感器
    • US08307714B1
    • 2012-11-13
    • US13151404
    • 2011-06-02
    • Stephen R. HooperWilliam G. McDonald
    • Stephen R. HooperWilliam G. McDonald
    • G01L7/00
    • G01L19/141G01L13/025G01L19/0038
    • A dual port pressure sensor has a lead frame having a flag having a first opening and a second opening. The lead frame has a flag having a first opening and a second opening. An encapsulant holds the lead frame. The encapsulant is over a top of the flag and a bottom of the flag is uncovered by the encapsulant. A first opening in the encapsulant is aligned with and larger than the first opening in the flag, and a second opening in the encapsulant is aligned with the second opening in the flag. A pressure sensor transducer is attached to the bottom of the flag and covers the first opening in the flag and provides an electrically detectable correlation to a pressure differential based on a first pressure received on its top side and a second pressure received on its bottom side. An integrated circuit is attached to the bottom of the flag and is electrically coupled to the pressure sensor. A lid forming an enclosure with the bottom of the flag. The pressure sensor transducer receives the first pressure through the first opening in the encapsulant and the first opening in the flag and the second pressure through the second opening in the encapsulant, the second opening in the flag, and the enclosure.
    • 双端口压力传感器具有带有具有第一开口和第二开口的标志的引线框架。 引线框架具有具有第一开口和第二开口的标志。 密封剂保持引线框架。 密封剂在标志的顶部之上,标志的底部被封装剂覆盖。 密封剂中的第一开口与标志中的第一开口对准并且大于标志中的第一开口,并且密封剂中的第二开口与标记中的第二开口对齐。 压力传感器传感器连接到标志的底部并覆盖标志中的第一开口,并且基于在其顶侧接收的第一压力和在其底侧上接收的第二压力而提供与压力差的电可检测的相关性。 集成电路连接到标志的底部并且电耦合到压力传感器。 盖子形成与旗子底部的封闭物。 压力传感器传感器通过密封剂中的第一开口和标志中的第一开口接收第一压力,并且通过密封剂中的第二开口,标志中的第二开口和外壳接收通过第二压力的第一压力。