ELECTROSTATIC PROTECTIVE ELEMENT AND LIGHT-EMITTING MODULE

摘要

PROBLEM TO BE SOLVED: To provide an electrostatic protective element that allows surely preventing a leakage current, in a structure using a base of a high-resistance semiconductor.SOLUTION: An electrostatic protective element 10 includes a base 20 composed of a high-resistance semiconductor material. On a first primary surface of the base 20, lands 22 and 23 for external connection are formed with a space along a first direction. On the first primary surface of the base 20, a diode part 30 is formed by a semiconductor process. The diode part 30 is formed between formation regions of the lands 22 and 23 for external connection along the first direction. A high-concentration region 40 has the same polarity as the base 20, and is a region containing more impurities than the base 20. The high-concentration region 40 is annular in the plan view of the base 20 and is formed in a shape surrounding the diode part 30.