A capacitance type dynamic quantity sensor has a first substrate, a second
substrate disposed over the first substrate, and first and second
electrodes each disposed on a main surface of a respective one of the
first and second substrates. Each of the first and second electrodes has
through-holes formed in a portion thereof. A third substrate is disposed
between and connected to the main surface of each of the first and second
substrates. A vibration member is mounted on the third substrate so as to
confront the first and second electrodes with gaps therebetween. The
vibration member is mounted on the third substrate to undergo vibrational
movement in response to application of an acceleration or an angular
velocity to the vibration member so that the capacitance type dynamic
quantity sensor detects a dynamic quantity in accordance with a change in
capacitance between the first and second electrodes due to vibrational
movement of the vibration member.