Abstract: An electromechanical switch with a rigidified electrode includes an actuation electrode, a suspended electrode, a contact, and a signal line. The actuation electrode is disposed on a substrate. The suspended electrode is suspended proximate to the actuation electrode and includes a rigidification structure. The contact is mounted to the suspended electrode. The signal line is positioned proximate to the suspended electrode to form a closed circuit with the contact when an actuation voltage is applied between the actuation electrode and the suspended electrode.

Abstract: A micro-electromechanical device includes an actuation electrode and a suspended electrode. The actuation electrode is disposed on a substrate. The suspended electrode is suspended proximate to the actuation electrode. The suspended electrode includes support members and a plate member. Each of the support members is clamped at either end to the substrate via anchors and the plate member is supported by the support members. The support members are flexible in response to an actuation voltage that is applied between the actuation electrode and the suspended electrode to allow the suspended electrode to electrostatically pull towards the actuation electrode. A signal line is coupled to the suspended electrode.

Abstract: An electromechanical switch includes an actuation electrode, a cantilever electrode, a contact, a suspended conductor, and a signal line. The actuation electrode is mounted to a substrate, the cantilever electrode is suspended proximate to the actuation electrode, and the contact is mounted to the cantilever electrode. The suspended conductor is coupled to the contact and straddles a portion of the cantilever electrode. The signal line is positioned to form a closed circuit with the contact and the suspended conductor when an actuation voltage is applied between the actuation electrode and the cantilever electrode.

Abstract: According to one embodiment a microelectromechanical (MEMS) switch is disclosed. The MEMS switch includes a top movable electrode, and an actutaion electrode with an undoped polysilicon stopper region to contact the top movable electrode when an actuation current is applied. The undoped polysilicon stopper region prevents actuation charging that accumulates over time in a unipolar actuation condition.

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.

Abstract: According to one embodiment a microelectromechanical (MEMS) switch is disclosed. The MEMS switch includes a substrate, a plurality of actuation electrodes mounted on the substrate, a plurality of bottom electrodes mounted on the substrate, a capacitor having subcomponents mounted on the two or more bottom electrodes and a top bendable electrode mounted on the substrate. The top electrode collapses a first magnitude towards the actuation electrodes whenever a first voltage is applied to one or more of the actuation electrodes and collapses a second magnitude towards the actuation electrodes whenever a second voltage is applied to the actuation electrodes.

Abstract: According to one embodiment a microelectromechanical (MEMS) switch is disclosed. The MEMS switch includes a substrate, a bottom electrode mounted on the substrate, a top electrode mounted on the bottom electrode, an actuation electrode mounted on the substrate and a resistor coupled to the actuation electrode. The resistor prevents self-actuation at the actuation electrode whenever the switch is open.

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.

Abstract: A conductive bridge in a second conductive layer may be utilized to join a pair of spaced apart conductive strips in a first conductive layer. A gap between the first and second strips may be bridged by the bridge while isolating both the first and second strips and the bridge itself from another conductor which extends through the gap between the first and second strips.

Abstract: Coplanar waveguides have a center signal line and a pair of ground lines on either side formed of a sputtered material such as gold (Au). Such waveguides are subject to what is known as the edge effect at high frequency operation causing currents to concentrate and flow along adjacent edges of the lines. Providing a thicker plated layer only on adjacent edges of the lines provide substantial performance improvements over sputtered lines alone while saving significant amount of Au, thus reducing costs.

Abstract: Coplanar waveguides have a center signal line and a pair of ground lines on either side formed of a sputtered material such as gold (Au). Such waveguides are subject to what is known as the edge effect at high frequency operation causing currents to concentrate and flow along adjacent edges of the lines. Providing a thicker plated layer only on adjacent edges of the lines provide substantial performance improvements over sputtered lines alone while saving significant amount of Au, thus reducing costs.

Abstract: A microelectromechanical system switch may include a relatively stiff cantilevered beam coupled, on its free end, to a more compliant or flexible extension. A contact may be positioned at the free end of the cantilevered beam. The extension reduces the actuation voltage that is needed and compensates for the relative stiffness of the cantilevered beam in closing the switch. In opening the switch, the stiffness of the cantilevered beam may advantageously enable quicker operation which may be desirable in higher frequency situations.

Abstract: A conductive bridge in a second conductive layer may be utilized to join a pair of spaced apart conductive strips in a first conductive layer. A gap between the first and second strips may be bridged by the bridge while isolating both the first and second strips and the bridge itself from another conductor which extends through the gap between the first and second strips.

Abstract: Disclosed is an inductor without a gap spacer. The inductor includes a bobbin having at least one round of wire wound thereon to serve as a coil of the inductor, a first magnetic member coupled with the bobbin, and a second magnetic member having a first end and a second end, wherein the second magnetic member is inserted into the bobbin from the second end thereof and the first end has a protrusion for allowing the second magnetic member to be partially inserted into the bobbin, thereby forming a gap between these two magnetic members.

Abstract: Disclosed is a method for adjusting the inductance of an inductor at least including a bobbin, a first magnetic member having a concavity on a side wall thereof, and a second magnetic member having a protrusion at a first end thereof for preventing the second magnetic member from being completely inserted into the bobbin so as to form a gap between the first and second magnetic members. The method includes the steps of selecting a reference piece with a suitable thickness to be disposed between the protrusion of the second magnetic member and the side wall of the first magnetic member with the concavity and closely attached to both of them t as said second magnetic member is inserted into said bobbin, and partially removing the second magnetic member from a second end thereof according to the thickness of the reference piece so as to obtain a predetermined inductance value.

Abstract: A linear filter is disclosed including a metal core, a bobbin surrounded said metal core for spinning around electric lines to form coils thereon, a plurality of metal pins disposed on said bobbin for providing electrical signals to said coils, and a plug disposed between said metal core and said bobbin for filling a gap between said metal core and said bobbin to prevent said metal core from moving.

Abstract: Disclosed is a method for adjusting the inductance of an inductor at least including a bobbin, a first magnetic member having a concavity on a side wall thereof, and a second magnetic member having a protrusion at a first end thereof for preventing the second magnetic member from being completely inserted into the bobbin so as to form a gap between the first and second magnetic members. The method includes the steps of selecting a reference piece with a suitable thickness to be disposed between the protrusion of the second magnetic member and the side wall of the first magnetic member with the concavity and closely attached to both of them as said second magnetic member is inserted into said bobbin, and partially removing the second magnetic member from a second end thereof according to the thickness of the reference piece so as to obtain a predetermined inductance value.

Abstract: A bobbin for reeling thereon a plurality of threads and its producing method are provided. The bobbin includes a cylinder, a plurality of sleeves setting on the cylinder wherein the cylinder and the sleeves are made of different materials, and a plurality of pins inserting in the sleeves for holding the plurality of threads thereon.