| 摘要 |
An oil filled pressure transducer utilizes a leadless sensor which is secured to a header comprising a glass pre-form and a header shell. The glass pre-form contains holes which accept header pins and another aperture or hole which accepts the oil fill tube. The diameter of the sensor is chosen to be almost as large as the inner diameter of the shell. In this manner, there is a small cut out over the portion of the sensor that would otherwise cover the oil fill tube. The sensor is mounted to the header using glass bonds. There is a very small space between the outer diameter of the sensor and the inner diameter header housing, which is filled with glass used to mount the sensor. Since there are no ball bonds or gold wires in the area between the surface of the sensor and the diaphragm, the distance between the sensor and metal diaphragm is drastically reduced, thereby substantially reducing the backpressure problem.
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