Patent ID: 8350357

Claim:
A semiconductor device comprising: a first region that includes a transmission circuit, a first connecting terminal, and a second connecting terminal; a second region that is placed alongside said first region, has a reference potential isolated from said first region, and includes a reception circuit, a third connecting terminal, and a fourth connecting terminal; a first inductor that is connected to said transmission circuit; a second inductor that is connected to said reception circuit, and is inductively coupled to said first inductor; a first bonding wire that forms at least part of said first inductor, and has two ends connected to said first connecting terminal and said third connecting terminal; a second bonding wire that forms at least part of said second inductor, and has two ends connected to said second connecting terminal and said fourth connecting terminal; a fifth connecting terminal formed in the first region and is connected to the second connecting terminal; a sixth connecting terminal that is formed in the first region; a seventh connecting terminal that is formed in the second region and is connected to the third connecting terminal; an eighth connecting terminal at is formed in the second region; a third bonding that has two ends connected to the sixth connecting terminal and the seventh connecting terminal, and forms part of the first inductor; and a fourth bonding wire that has two ends connected to the fifth connecting terminal and the eighth connecting terminal, and forms part of the second inductor.