Patent ID: 8212152
Filing Date: 2012-07-03
Classification: H01G,H05K,Y02P

Abstract:
1. An electronic device comprising: a multilayer capacitor formed in a nearly rectangular parallelepiped shape and having a first terminal electrode and a second terminal electrode arranged at respective ends thereof; and a circuit board having a first land and a second land arranged thereon, in which the first terminal electrode of the capacitor is fixed to the first land and in which the second terminal electrode is fixed to the second land, wherein the circuit board has a slit having a C shape with two ends formed so as to open toward the second land side and surround the first land, when viewed from a direction perpendicular to a principal surface of the circuit board, wherein the slit is not formed between the first land and the second land in plan view, and no slit is formed between the first land and the second land in plan view, wherein an imaginary straight line connecting one end and the other end of the slit intersects with the capacitor when viewed from the direction perpendicular to the principal surface of the circuit board, wherein a first region of the circuit board surrounded by the slit and the imaginary straight line is configured to vibrate in the direction perpendicular to the principal surface of the circuit board, and has a side defined by the imaginary straight line and is free to vibrate relative to the circuit board, wherein a second region outside the first region has a side defined by the imaginary straight line and is fixed relative to the circuit board, and wherein the second terminal electrode is fixed to the second region, the first terminal electrode vibrates relative to the second region and the second terminal electrode, and the second terminal electrode is configured to not vibrate relative to the second region or the circuit board.