Mechanical quantity measuring device

摘要

In a mechanical quantity measuring device (1) having a sensor chip (2) which outputs a sense output (S) corresponding to a mechanical quantity acting on the object to be measured (4), and a flexible wiring board (3) which supports the sensor chip (2) and has a wire (6) to lead out the sense output (S) to outside, and in which in measuring the mechanical quantity, the sensor chip (2) and the flexible wiring board (3) are attached to the object to be measured (4), a cutout (5) is provided on the flexible wiring board (3) near the sensor chip (2) and on the side where the wire (6) is arranged for the sensor chip (2). Thus, change in the sense output (S) with time can be restrained.

主权项

1. A mechanical quantity measuring device having a sensor chip which outputs a sense output corresponding to a mechanical quantity acting on an object to be measured,
and a flexible wiring board which supports the sensor chip at a first area on a first side of the flexible wiring board, the flexible wiring board having a wire arranged for the sensor chip on the first side to lead out the sense output to outside, and in which in measuring the mechanical quantity, the sensor chip and the flexible wiring board are attached to the object to be measured, wherein the mechanical quantity measuring device has a cutout provided at a second area on the first side where the wire is arranged for the sensor chip, the second area being an area of the first side of the flexible wiring board that does not overlap the first area, and the wire being arranged so as not to cross the second area.