Decibels (dB) are used in various fields such as electricity, communication, optics, sound, vibration and so on. Here, we summarize the basic definition of decibel (dB), significance of using it, its convenience, how it is used in various fields, and so on.
Currently, the method of using ultrasonic waves is common in wire bonding. Since the state of applying ultrasonic vibration affects the quality of bonding, it has been highlighted as an important parameter.
It is important to thoroughly consider vibration in advance when designing machine, and take measures not to generate or reduce vibration since it take time and cost to take measures once having vibration.
“Damping” is reducing the level of vibration on the surface of solid to convert vibration energy into thermal energy, while “vibration isolation” is equivalent to vibration isolation to reduce vibration transmission rate between vibration source and vibration receiving device.