Patent ID: 9064704
Filing Date: 2015-06-23
Classification: H01L

Abstract:
1. An integrated circuit, comprising a high frequency circuit, a switching element, a first ESD protection circuit block, and a second ESD protection circuit block, wherein the high frequency circuit is connected between a first terminal and a second terminal for inputting or outputting the radio frequency signals; each of the first and second ESD protection circuit block comprises a DC blocking capacitor connected between a first point and a second point, and at least one compound semiconductor ESD protection device connected between the first point and the second point in parallel with the DC blocking capacitor; the first point of the first ESD protection circuit block is connected to a branch node between the first terminal and the high frequency circuit and the second point of the first ESD protection circuit block is connected to one terminal of the switching element; and the first point of the second ESD protection circuit block is connected to the other terminal of the switching element and the second point of the second ESD protection circuit block is connected to the ground.