Patent ID: 8493762
Filing Date: 2013-07-23
Classification: H01L,H02M

Abstract:
1. A power semiconductor module comprising: a first semiconductor element constituting an upper arm of a first phase in a first circuit of a first system for driving a first electric device; a second semiconductor element constituting a lower arm of the first phase in the first circuit of the first system; a third semiconductor element constituting an upper arm of a first phase in a second circuit of a second system for driving a second electric device; a fourth semiconductor element constituting a lower arm of the first phase in the second circuit of the second system; a first conductor comprising a first joint surface joined to a positive electrode side of the first semiconductor element, and joined to a positive electrode side of the third semiconductor element; a second conductor comprising a first joint surface joined to a negative electrode side of the second semiconductor element, and joined to a negative electrode side of the fourth semiconductor element; a third conductor arranged between the first conductor and the second conductor, and comprising a first joint surface opposed to the first joint surface of the first conductor and joined to a negative electrode side of the first semiconductor element, and a second joint surface opposed to the first joint surface of the second conductor and joined to a positive electrode side of the second semiconductor element; and a fourth conductor arranged between the first conductor and second conductor, aligned with the third conductor, and comprising a first joint surface opposed to the first joint surface of the first conductor and joined to a negative electrode side of the third semiconductor element, and a second joint surface opposed to the first joint surface of the second conductor and joined to a positive electrode side of the fourth semiconductor element.