摘要:
An integrated circuit (IC) chip card includes a card body and an integrated IC chip module located in a recess provided by the card body on one side thereof. The IC chip module includes a substrate having outward-facing and inward-facing surfaces, and a first plurality of contact pads supportably interconnected to the outward-facing surface of the substrate for contact engagement with at least one appendage of a user. The IC chip module further includes a first IC chip supportably interconnected to the inward-facing surface of the substrate and electrically interconnected to the first plurality of contact pads for processing a biometric signal received therefrom. The IC chip module may also include a second plurality of contact pads supportably interconnected to the outward-facing surface of the substrate for engaging a contact card reader for contact communication signal transmissions and/or a first antenna supportably interconnected to the inward-facing surface of the substrate for contactless communication signal transmissions with a contactless card reader.
摘要:
A package is described for a radio frequency die that has a backside conductive plate. One example includes a conductive plate, a semiconductor die having a front side and a back side, the back side being attached to the plate, a radio frequency component attached to the plate, a dielectric filled cavity in the plate adjacent to the radio frequency component, and a redistribution layer attached to the front side of the die for external connection.
摘要:
A multi-layer printed circuit board includes an embedded capacitor substrate composed of a power source conductor layer and a ground conductor layer, the layers being disposed close to each other. The power source conductor layer has a first power source plane to supply power to a circuit element, and a second power source plane that is separated from the first power source plane by a gap and functions as a main power source. The first power source plane is partially connected to the second power source plane by a connecting line. The ground conductor layer has an opening at a position overlapping with a projected image when the connecting line is projected on the ground conductor layer. This structure suppresses propagation of the noise caused at the circuit element and reduces radiation noise in the printed circuit board.
摘要:
A wafer level method of making a micro-electronic and/or micro-mechanic device, having a capping with electrical wafer through connections (vias), comprising the steps of providing a first wafer of a semiconductor material having a first and a second side and a plurality of holes and/or recesses in the first side, and a barrier structure extending over the wafer on the second side, said barrier comprising an inner layer an insulating material, such as oxide, and an outer layer of another material. Then, metal is applied in said holes so as to cover the walls in the holes and the bottom of the holes. The barrier structure is removed and contacts are provided to the wafer through connections on the back-side of the wafer. Bonding structures are provided on either of said first side or the second side of the wafer. The wafer is bonded to another wafer carrying electronic and micro-electronic/mechanic components, such that the first wafer forms a capping structure covering the second wafer. Finally the wafer is singulated to individual devices.
摘要:
An interconnection structure for interconnecting circuitry on a first conductive layer to circuitry on a second conductive layer is provided. The interconnection structure of the present invention comprises a signal conductor via surrounded by a plurality of ground vias. The plurality of ground vias shield the signal conductor via, thus providing electrical isolation for the conductor via from the rest of the circuitry. One feature of the present invention is that the plurality of ground vias can be modified, adjusting their diameters and their placement relative to the signal conductor via, in order to affect the overall characteristic impedance of the interconnection structure. This feature is useful when propagating high frequency signals between signal traces on different conductive layers of a printed circuit board. In view of the high frequencies used in today's wireless communication systems, the interconnection structure proposed aids in the practical implementation of radio frequency modules by mitigating the effects of impedance discontinuities ordinarily present at signal trace-to-via transition regions.
摘要:
A stacked via structure (200) adapted to transmit high frequency signals or high intensity current through conductive layers of an electronic device carrier is disclosed. The stacked via structure comprises at least three conductive tracks (205a, 205b, 205c) belonging to three adjacent conductive layers (110a, 110b, 110c) separated by dielectric layers (120), aligned according to z axis. Connections between these conductive tracks are done with at least two vias (210, 215) between each conductive layer. Vias connected to one side of a conductive track are disposed such that they are not aligned with the ones connected to the other side according to z axis. In a preferred embodiment, the shape of these aligned conductive tracks looks like a disk or an annular ring and four vias are used to connect two adjacent conductive layers. These four vias are symmetrically disposed on each of said conductive track. The position of the vias between a first and a second adjacent conductive layers and between a second and a third adjacent conductive layers forms an angle of 45° according to z axis.
摘要:
Eine nicht lineare Hochfrequenzverstärkeranordnung (1), die geeignet ist, Ausgangsleistungen ≥ 1kW bei Frequenzen ≥ 1MHz zur Plasmaanregung zu erzeugen, umfassend: a. zwei LDMOS-Transistoren (S1, S2), die mit ihrem Sourceanschluss jeweils mit einem Masseverbindungspunkt (5) verbunden sind, wobei die LDMOS-Transistoren (S1, S2) gleichartig ausgebildet sind und in einer Baugruppe (Package) (3) angeordnet sind, b. einen Leistungsübertrager (7), dessen Primärwicklung (6) mit den Drainanschlüssen der LDMOS-Transistoren (S1, S2) verbunden ist, c. einen Signalübertrager (11), dessen Sekundärwicklung (13) mit einem ersten Ende mit dem Gateanschluss (15) des einen LDMOS-Transistors (Sl) verbunden ist und mit einem zweiten Ende mit dem Gateanschluss (17) des anderen LDMOS-Transistors (S2) verbunden ist, d. jeweils einen Rückkoppelpfad (34, 35) von dem Drainanschluss zu dem Gateanschluss (15, 17) jedes LDMOS-Transistors (S1, S2).