Patent ID: 8659861

Claim:
An electronic component device comprising: a package substrate including an upper electrode arranged on an upper surface of the package substrate and a lower electrode arranged on a lower surface of the package substrate; and an electronic component element mounted on the package substrate; wherein the package substrate includes an electro-static discharge protection element disposed therein; the electro-static discharge protection element includes a cavity portion disposed inside the package substrate and a pair of opposed discharge electrodes disposed inside the cavity portion; the electro-static discharge protection element is located between a signal line disposed inside the package substrate and an electro-static discharge ground electrode disposed on a surface of the package substrate; the signal line includes an upper portion and a lower portion, the upper portion directly contacting one of the pair of opposed discharge electrodes and the upper electrode, and the lower portion directly contacting the one of the pair of opposed discharge electrodes and the lower electrode; the electro-static discharge ground electrode is separate and distinct from a ground electrode dedicated to the electronic component element; the electro-static discharge ground electrode is dedicated to the electro-static discharge protection element; and the electro-static discharge ground electrode is directly connected to the other one of the pair of opposed discharge electrodes by only a via hole filled with electrode paste.