Patent ID: 8519265
Filing Date: 2013-08-27
Classification: H01L

Abstract:
1. A power module comprising: a metal base; an electrode terminal including a bent portion bent into a square U shape; a nut and a nut holder housed inside the bent portion of the electrode terminal, the nut holder having a pair of major surfaces including a first surface and a second surface positioned opposite to the first surface, wherein the bent portion covers and is in direct contact with the first surface and the second surface; a circuit board having a first major surface with a semiconductor chip mounted on the circuit board, the circuit board having an upper electrode on the first major surface, the upper electrode being electrically connected to the semiconductor chip and soldered to one end of the electrode terminal located away from the bent portion, the circuit board having a lower electrode on a second major surface opposite to the first major surface, and the lower electrode being soldered to the metal base; and a casing having a lower end portion in contact with an end portion of the metal base, the casing having an upper portion in contact with an outer surface of the bent portion of the electrode terminal, and the casing being spaced from the circuit board and provided so as to cover the circuit board.