METHOD FOR ADJUSTING MECHANICAL IMPACT FORCE IN PROCESSING ELECTRONIC CHIP PARTS AND MECHANICAL IMPACT FORCE SENSOR

摘要

PURPOSE:To derive impact force which electronic chip parts receive by an exact value and to surely prevent the generation of a physical failure of the electronic chip parts caused by impact by providing a mechanical impact force sensor consisting of the same shape as the electronic chip parts and having piezoelectric property. CONSTITUTION:First of all, the mechanical impact force sensor 1 which consists of the same shape as electronic chip parts and has a piezoelectric property is prepared, and the sensor 1 is inserted into the recessed part 10 of a base 6. Subsequently, a measuring terminal 7 and a measuring terminal 8 are moved to the upper part and the lower part, respectively, and both the measuring terminals 7, 8 are allowed to abut on the external electrode 3 of the sensor 1. By impact force in this case, a voltage corresponding to whether the impact force is large or small is generated in the sensor 1. This output voltage is measured and recorded by the oscilloscope of a measuring instrument 9 through the measuring terminals 7, 8. Subsequently, the peak value of the output voltage generated first is converted to impact force by using a piezoelectric constant measured in advance with regard to the sensor 1, and impact force generated due to a fact that the measuring terminals 7, 8 abut on the sensor 1 at the time of measurement is derived. In such a way, the generation of a physical failure of the electronic chip parts caused by an impact can be prevented surely.