MEMS RF switch module including a vertical via
First Claim
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1. An apparatus, comprising:
- a micro-electro-mechanical system (MEMS) die including at least one MEMS device and one or more MEMS contacts electrically coupled to the at least one MEMS device;
a cap coupled to the MEMS die to form an enclosure around the at least one MEMS device, the cap including one or more internal contacts, each internal contact being electrically coupled to a corresponding external contact by a via extending through the cap, wherein at least one of the internal contacts can be electrically coupled to at least one of the one or more MEMS contacts; and
a trace ring disposed within the enclosure and coupled to the at least one MEMS device, wherein one of an input terminal or an output terminal for the at least one MEMS device is coupled to the trace ring.
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Abstract
An apparatus and method to provide a micro-electromechanical systems (MEMS) radio frequency (RF) switch module with a vertical via. The MEMS RF switch module includes a MEMS die coupled to a cap section. The vertical via passes through the cap section to electrically couple an RF switch array of the MEMS die to a printed circuit board (PCB). In one embodiment, the MEMS die includes a trace ring surrounding at least a portion of the RF switch array so that a signal may enter or exit the MEMS RF switch module using the vertical via without crossing the trace ring.
47 Citations
18 Claims
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1. An apparatus, comprising:
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a micro-electro-mechanical system (MEMS) die including at least one MEMS device and one or more MEMS contacts electrically coupled to the at least one MEMS device; a cap coupled to the MEMS die to form an enclosure around the at least one MEMS device, the cap including one or more internal contacts, each internal contact being electrically coupled to a corresponding external contact by a via extending through the cap, wherein at least one of the internal contacts can be electrically coupled to at least one of the one or more MEMS contacts; and a trace ring disposed within the enclosure and coupled to the at least one MEMS device, wherein one of an input terminal or an output terminal for the at least one MEMS device is coupled to the trace ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus comprising:
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a MEMS die including an array of MEMS radio frequency (RF) switches and one or more MEMS contacts electrically coupled to at least one of the switches in the array; a cap coupled to the MEMS die to form an enclosure around the array, the cap including one or more internal contacts, each internal contact being electrically coupled to a corresponding external contact by a via extending through the cap, wherein at least one of the internal contacts can be electrically coupled to at least one of the one or more MEMS contacts; and a trace ring disposed within the enclosure and coupled to the array, wherein one of the input terminal or the output terminal is coupled to the trace ring. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification