Patent ID: 9177182
Filing Date: 2015-11-03
Classification: G06K,H01L,H03K

Abstract:
1. A semiconductor device for wireless communication, comprising: a first terminal serving as an antenna coupling terminal to couple with an antenna and input with an alternating current signal via the antenna; a p-channel first MISFET having a source-drain path coupled between the first terminal and a first power supply voltage terminal to drive the antenna; an n-channel second MISFET having a source-drain path coupled between the first terminal and a second power supply voltage terminal to drive the antenna; and a rectifying circuit section coupled to the first terminal and the p-channel first MISFET, wherein the rectifying circuit section includes: wherein the rectifying circuit section uses the alternating current signal input to the first terminal via the antenna to generate a third power supply voltage having a value higher than that of a first power supply voltage at the first power supply voltage terminal and higher than a voltage occurring at the first terminal when the alternating current signal has a maximum amplitude, wherein the third power supply voltage is applied as a bulk voltage of the first MISFET, wherein the third power supply voltage is generated from the output node of the second rectifying circuit, and wherein a fourth power supply voltage is generated from the output node of the first rectifying circuit.