An electronic component that can be prevented from being mounted on a circuit board with inclination, and a manufacturing method thereof are provided. Specifically, 100 parts by weight of a polyacetal copolymer containing 1. A shift operation is performed during an operation of reading or of writing. Excessive etching gas remaining after being adsorbed is removed. The moving electrodes and the fixed electrodes have generally planar major surfaces perpendicular to the plane of the substrate.