Abstract:
A probe card assembly (500) includes a probe card (502), a space transformer (506) having resilient contact structures (probe elements) (524) mounted directly to and extending from terminals (522) on a surface thereof, and an interposer (504) disposed between the space transformer (506) and the probe card (502). The space transformer (506) and interposer are "stacked up" so that the orientation of the space transformer (506), hence the orientation of the tips of the probe elements (524), can be adjusted without changing the orientation of the probe card. Suitable mechanisms (532, 536, 538, 546) for adjusting the orientation of the space transformer (506), and for determining what adjustments to make, are disclosed. Multiple die sites on a semiconductor wafer (508) are readily probed using the disclosed techniques, and the probe elements (524) can be arranged to optimize probing of an entire wafer (508). Composite interconnection elements (200) having a relatively soft core (206) covercoated by a relatively hard shell (218, 220) as the resilient contact structures are described.
Abstract:
The present disclosure is concerned with a special electric component (1) such as a motor, an accumulator, or an electric subassembly having at least one soldering pin (100), in particular at least two soldering pins, for solder joining the special electric component to a printed circuit board (210, 210A), wherein the at least one soldering pin has a connection end (101) that comprises a front section (110) at the free end of the soldering pin and a first section (120) adjacent the front section, where the front section has a width (w1) that is smaller than the width (w2) of the first section, in particular wherein the width of the front section is at least 25% smaller than the width of the first section, in particular at least 50% smaller. The present disclosure is also concerned with a printed circuit board assembly and an electric device.
Abstract:
A power module (100) arranged to receive an input voltage and to deliver an output voltage, comprising a supporting layer (110) with first and second main surfaces (111, 109) and a rim (122) surrounding the main surfaces. The power module (100) also comprises at least one component (112, 113, 114, 115) on or in the supporting layer (110) which protrudes a first perpendicular distance (d 1 ) from one of the main surfaces. The power module (100) additionally comprises connectors (116-119; 120-123) for attaching the power module (100) to an external component (10). The one or more connectors (116-119; 120-123) protrude a second distance (d 2 ) from said rim (122) in a perpendicular direction from one of the main surfaces (111, 109), so that the at least one component is at a predefined distance (d 4 , d 5 ) from the external component (10) when the power module is attached to the external component (10).
Abstract:
Die Erfindung betrifft ein elektrisches Kontaktierungselement für übereinander angeordnete elektrische Trägerkomponenten in einem Elektronikgehäuse, wobei das Kontaktierungselement einen U-förmig ausgebildeten Grundkörper aufweist. Erfindungsgemäß ist das elektrische Kontaktierungselement (1) als flexibler Abstandshalter zwischen zwei übereinander angeordneten Trägerkomponenten ausgebildet.
Abstract:
An optical transceiver module having aplurality of optical subassemblies (1001 and a printed circuit board (150) is disclosed The transceiver module includes lead frame connectors (12,22) for connecting the optical subassemblies to the printed circuit board The lead frame connectors include a stamped and bent conductive lead structure (30) that is encased in an insert injection molded plastic casing (32) The plastic casing provides electrical insulation for the conductors in the lead frame as well as mechanical support for the finished component The lead frame connectors connect to the leads associated with the optical subassemblies and are surface mounte onto the printed circuit board to establish connectivity betwedn the optical subassembly and the printed circuit board The lead frame assemblies are generally more reliable and less expensive than using flexible printed circuit board structures to establish electrical connectivity between optical subassemblies and transceiver printed circuit boards
Abstract:
A high frequency coax via structure is configured with a stripped semi-rigid cable (no shield), and an inductive compensation loop to mitigate transition discontinuity between that via structure's center conductor and the pad to which the center conductor is connected. The performance of top-to-bottom microwave transitions at high frequencies (e.g., 1 to 12 GHz) for such boards is enhanced. A non-metallized via hole embodiment that is configured with surrounding ground vias provides a greater degree of compensation for connection pads associated with greater capacitance (such as those coupled to a component).
Abstract:
An electronic device package is attached to a printed wiring board with an interposer formed from a sheet of material to contain a lower surface and an elevated upper surface that surrounds the lower surface and a plurality legs along the edge of the upper surface. The electronic device package is attached to the upper surface. The lower surface is attached to the printed wiring board. The legs are attached to the printed wiring board. The transition between the lower surface and the upper surface are in staircase pattern, as are the legs. Vent slots are included in the transition between the lower and upper surfaces.