Patent ID: 6891461

Claim:
A transformer comprising: a first inductor having an at least one trench, the at least one trench having a pair of walls and a bottom; a first conductor defining a first signal path along the pair of walls and the bottom of the at least one trench of the first inductor; a first magnetic layer defining a second signal path parallel to the first signal path along the pair of walls and the bottom of the at least one trench of the first inductor; a second inductor having an at least one trench, the at least one trench having a pair of walls and a bottom; a second conductor defining a third signal oath along the pair of walls and the bottom of the at least one trench of the second inductor; a second magnetic layer defining a fourth signal path parallel to the third signal path along the pair of walls and the bottom of the at least one trench of the second inductor.