Patent ID: 7101793

Claim:
A method of manufacturing a power module, comprising the steps of: (a) preparing at least one relay terminal having one end and the other end which is electrically connected to a power semiconductor device, at least one dummy terminal having one end and the other end which is mountable on and removable from said one end of said relay terminal, and a control board having at least one through hole; (b) mounting said the other end of said dummy terminal on said one end of said relay terminal; (c) causing said one end of said dummy terminal to penetrate said through hole; (d) causing said one end of said relay terminal to penetrate said through hole by passing said dummy terminal through said through hole; and (e) removing said the other end of said dummy terminal from said one end of said relay terminal, wherein said one end of said dummy terminal has a smaller diameter than any other portion of said dummy terminal and than said relay terminal, and a boundary portion of said dummy terminal between said one end and said other portion of said dummy terminal has a diameter that tapers down toward said one end of said dummy terminal.