Patent ID: 9620444
Date: 2017-04-11
CPC Classifications: H01L,H05K,Y02P

Claim:
1. A power semiconductor device encapsulated with a mold resin, comprising: a plurality of lead frames formed into like a wiring pattern; a power semiconductor element joined onto the lead frame; and a capacitor placed between mutually adjacent two of the lead frames; wherein the capacitor is characterized in that external electrodes of the capacitor are connected to the lead frames each through a stress-relaxation structure portion that is lower in rigidity than the capacitor; wherein joining structure of the capacitor and each of the lead frames comprises the stress-relaxation structure portion connected to the external electrode of the capacitor, and a solder that connects the stress-relaxation structure portion with the lead frame; and wherein the stress-relaxation structure portion is lower in rigidity than the solder; wherein the stress-relaxation structure portion has an electrode connection portion connected to the external electrode of the capacitor, and an electrode non-connection portion is not connected to the external electrode and the capacitor.