US 2016/0079218 A1 · ELECTROSTATIC PROTECTION DEVICE AND LIGHT-EMITTING MODULE

Abstract

An electrostatic protection device includes a base member formed of a high-resistance semiconductor material. External connecting lands are formed on a first principal surface of the base member along a first direction with a space therebetween. A diode section is formed in the first principal surface of the base member through a semiconductor forming process. The diode section is formed between formation regions of the external connecting lands along the first direction. A high concentration region is a region that has the same polarity as the base member and contains larger amounts of impurities than the base member. The high concentration region is formed in a ring shape enclosing the diode section in a plan view of the base member.

Claims7

Dependent claims

An electrostatic protection device comprising:

a base member formed of a semiconductor material;
and
a diode section formed on a first principal surface side of the base member through a semiconductor forming process,
wherein the base member has such resistivity that causes formation of a conductivity type inversion layer in the base member by applying a voltage from an exterior, carrying out heat treatment, and
the base member includes a high concentration region formed in a shape extending from the first principal surface to an interior of the base member so as to enclose the diode section in a plan view of the base member when seen from the first principal surface side, is of a same conductivity type as the base member, and has a higher impurity concentration than the base member.

2 more elements

Dependencies are inferred from the claim text.

Electrostatic protection device and light-emitting module

Life of this patent

Electrostatic protection device and light-emitting module

Life of this patent

Abstract

Claims7