Patent ID: 8188572
Filing Date: 2012-05-29
Classification: H01L,H03H

Abstract:
1. An integrated semiconductor filter comprising: a first terminal; a second terminal; a third terminal; a first diode coupled between the first and third terminals; a second diode; a first zener diode coupled in series with the second diode wherein the series combination of the second diode and the first zener diode is coupled in parallel with the first diode and wherein the first diode, the second diode, and the first zener diode form a first capacitor having a first capacitance value; a third diode coupled between the second and third terminals; a fourth diode; a second saner diode coupled in series with the fourth diode wherein the series combination of the fourth diode and the second zener diode is coupled in parallel with the third diode and wherein the third diode, the fourth diode, and the second zener diode form a second capacitor having a second capacitance value; a fifth diode coupled in parallel with the third diode wherein the fifth diode forms a third capacitor having a third capacitance value and wherein the third diode, the fourth diode, the fifth diode, and the second zener diode form a first branch capacitor of the integrated semiconductor filter, the first branch capacitor having a fourth capacitance value that is approximately two and one-half to seven and one-half pico-farads at frequencies that are no greater than one Mhz; and an inductor coupled to at least the second terminal of the integrated semiconductor filter.