A BODY FOR DIGITAL MICROPHONE AND A MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A body for a digital microphone and a manufacturing method thereof are provided to block electromagnetic or noise from the outside by forming a conductive metal film on inner circumference of each center hole. CONSTITUTION: A digital microphone body(40) comprises each center hole(42) and a conductive metal film(44). The center holes are formed on an insulating plate(41) of insulating resin such as epoxy. The conductive metal film is plated on the inner circumference of the center holes. A conductive metal film is formed with a metal having conductivity such as a copper. The conductive metal film blocks electromagnetic or noise into the inside of the center hole from outside. The conductive metal film is formed along the inner circumference of the center hole.