Abstract: A MEMS (microelectromechanical system) resonator assembly (100), comprising a support structure (102), a resonator element (101) suspended to the support structure (102), and an actuator for exciting the resonator element (101) to a resonance mode. The resonator element (101) vibrates at resonance frequency f0 and comprises at least one bulk acoustic resonator (110a, 110b). The ESR*A*f0 values of the resonator assembly (100) are in the range from 12 ?mm2 MHz to 83 ?mm2 MHZ.

Abstract: A MEMS (microelectromechanical system) resonator assembly (100), comprising a support structure (102), a resonator element (101) suspended to the support structure (102), and an actuator for exciting the resonator element (101) to a resonance mode. The resonator element (101) vibrates at resonance frequency f0 and comprises at least one bulk acoustic resonator (110a, 110b). The ESR*A*f0 values of the resonator assembly (100) are in the range from 12 ?mm2 MHz to 83 ?mm2 MHZ.

Abstract: A MEMS (microelectromechanical system) resonator assembly (100), comprising a support structure (102), a resonator element (101) suspended to the support structure (102), and an actuator for exciting the resonator element (101) to a resonance mode. The resonator element (101) comprises two bulk acoustic resonators (110a, 110b) and a flexural mode resonator (120). The flexural mode resonator (120) mechanically connects the two bulk acoustic resonators (110a, 110b), and the MEMS resonator assembly (100) is configured to vibrate in a collective resonance mode in which motions of the two bulk acoustic resonators (110a, 110b) are substantially in the same or 180 degrees shifted phase with respect to each other.

Abstract: A portfolio carrier constructed from a sheet material having central, left and right side portions. Score lines in the material define a pair of central panels with a separator panel, five right side panels, and five left side panels. The carrier is formed by (i) urging the major panels toward one another about score lines bounding the separator panel, (ii) urging the right side portion toward the central portion about a first score line, and folding the right side panels so that a middle panel forms a right side wall of the carrier, and remaining panels extend inward to define one or more interior compartments of the carrier, and (iii) urging the left side portion toward the central portion about a second score line, and folding the left side panels so that a middle panel forms a left side wall of the carrier, and remaining panels extend inward to define the compartments.