Macom Technology Solutions Holdings, Inc.

Rathnait Long

Douglas Carlson

Mihir S Patel

Richard Allen Cory

Scott Donahue

Gerald Comtois

Thomas A Winslow

An acoustic wave resonator has a first conductive layer, piezoelectrical material formed over the first conductive layer, and second conductive layer formed over the piezoelectric material. An alignment of the first conductive layer, piezoelectric material and second conductive area defines an active region of the resonator and the active region includes a core area and a plurality of fractals extending from or recessed into the core area. The fractals maximize a perimeter-to-area ratio of the active region of the resonator. The fractals increase electromechanical coupling and a quality factor of the resonator. The fractals can have a star shape, rounded shape, asymmetric shape, or other shape that optimizes the perimeter-to-area ratio of the active region to maximize performance of the resonator. A frame can be disposed over or within the piezoelectric material. The frame is raised above the second conductive layer or recessed below the second conductive layer.

Semiconductor device and method of forming high Khigh Q acoustic wave resonator

Examples of printed circuit boards (PCBs) with board configuration blocks and board edge projections are described. In one example, a PCB includes a core material and a metal layer comprising a plurality of metal traces on the core material. The plurality of metal traces can include component interconnect traces and a board configuration block. The board configuration block can include a plan diagram for the PCB, an operational diagram for the PCB, or a combination of plan and operational diagrams. In other examples, a PCB can include a core material having a peripheral edge. The peripheral edge can include one or more board edge scheme projections positioned within projection edge regions of the peripheral edge. The scheme projections have a projection shape based on operational characteristics for the PCB. In some cases, the board configuration blocks can be located on the board edge scheme projections.

Printed circuit board configuration blocks and edge projections

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North Andover, MA, United States of America

Rathnait Long