Skyworks Solutions, Inc.
METHODS RELATED TO MANAGING PARASITIC CAPACITANCE AND VOLTAGE HANDLING OF STACKED RADIO FREQUENCY DEVICES

Abstract:

Various implementations enable management of parasitic capacitance and voltage handling of stacked integrated electronic devices. A method can include providing a stack in a radio frequency switch arrangement, the stack arranged in relation to a ground plane, the stack including a plurality of switching elements coupled in series with one another, the stack having first and second ends, the first end including a respective terminal of a first one of the plurality of switching elements. The method can also include forming a first solder bump coupled to the respective terminal of the first one of the plurality of switching elements such that at least a portion of the first solder bump overlaps with one or more of the plurality of switching elements, an overlap dimension set in relation to a first threshold value in order to set a respective contribution to a parasitic capacitance of the radio frequency switch arrangement.