Abstract:
Die Erfindung betrifft ein elektrisch leitfähiges Kontaktelement (1). Das Kontaktelement (1) weist einen Klemm-Abschnitt (3) zum Festhalten und elektrischen Kontaktieren eines Drahtes (8) auf. Das Kontaktelement (1) weist auch einen flach ausgebildeten Lötabschnitt (7) auf, wobei der Lötabschnitt (7) eine Lötfläche (10) aufweist. Die Lötfläche (10) ist ausgebildet, mit einer Leiterplatte (9, 23) mittels Löten elektrisch verbunden zu werden. Das Kontaktelement (1) weist auch einen federnd ausgebildeten Federabschnitt auf (12, 14, 15, 16), welcher den Lötabschnitt (7) mit dem Klemm-Abschnitt (3) verbindet. Erfindungsgemäß ist das Kontaktelement (1) der eingangs genannten Art ausgebildet, auf der Lötfläche (10) selbstständig, insbesondere hilfsmittelfrei, zu stehen. Bevorzugt weist das Kontaktelement (1) einen Schwerpunkt auf, dessen Lotgerade (20) beim Stellen des Kontaktelements (1) auf die Lötfläche (10) durch die Lötfläche (10) verläuft.
Abstract:
Ein Sensor umfasst ein vorzugsweise mehrschichtiges Keramiksubstrat (2) und mindestens ein in, an oder auf dem Keramiksubstrat (2) angeordnetes Sensorelement (1). Das Sensorelement (1) ist über einen metallischen Kontakt (6) kontaktierbar, wobei der metallische Kontakt (6) über eine Lötverbindung hergestellt ist, die den Kontakt (6) elektrisch mit dem Sensorelement (1) verbindet und dabei eine feste mechanische Verbindung des Kontakts (6) gegenüber dem Keramiksubstrat (2) erzeugt. Des Weiteren ist ein Verfahren zur Herstellung des erfindungsgemäßen Sensors beansprucht.
Abstract:
When the ceramic substrate of a ceramic column grid array is connected with a large number of columns, a mounting jig is arranged on the ceramic substrate and a column is inserted into the hole of the mounting jig. When the columns are inserted one by one into the holes of the mounting jig, the productivity is low and the cost increases. A column suction head enables the columns to be inserted into all holes of the mounting jig at a time. Elongated holes are bored in the body at the same positions as those of the electrodes provided on the ceramic substrate of the ceramic column grid array and a suction hole is bored in the bottom of each elongated hole. When a column suction head is set on an arranging jig where the columns are arranged and air is sucked through the suction holes, the columns of the arranging jig are sucked into the elongated holes of the column suction head.
Abstract:
A microprocessor packaging architecture using a modular circuit board assembly that provides power to a microprocessor while also providing for integrated thermal and electromagnetic interference (EMI) is disclosed. The modular circuit board assembly comprises a substrate, having a component mounted thereon, a circuit board, including a circuit for supplying power to the component, and at least one conductive interconnect device disposed between the substrate and the circuit board, the conductive interconnect device configured to electrically couple the circuit to the component.
Abstract:
A microprocessor packaging architecture using a modular circuit board assembly that provides power to a microprocessor while also providing for integrated thermal and electromagnetic interference (EMI) is disclosed. The modular circuit board assembly comprises a substrate, having a component mounted thereon, a circuit board, including a circuit for supplying power to the component, and at least one conductive interconnect device disposed between the substrate and the circuit board, the conductive interconnect device configured to electrically couple the circuit to the component.
Abstract:
For any optically interconnected assembly, the packaging tasks include alignment of one or multiple optical devices (712), and attachement of aligned modules to a common substrate (702). The concept disclosed here is a packaging method to assemble pre-aligned optical modules (712) on a common structure called motherboard (702). The apparatus consists of two components: device carrier (704) or motherboard (702) with openings on the sides and adjustable plugs (706) in the form of pins or balls. The method and apparatus utilize plugs (706) as connection bridges between device carriers (704) and motherboard (702), allowing solid contacts and a rigid aligned structure among modules (712). The direct benefits include relaxation of dimensional tolerances on parts and elimination of the need for high-precision spacers.
Abstract:
For any optically interconnected assembly, the packaging tasks include alignment of one or multiple optical devices, and attachement of aligned modules to a common substrate. The concept disclosed here is a packaging method to assemble pre-aligned optical modules on a common structure called motherboard. The apparatus consists of two components: device carrier or motherboard with openings on the sides and adjustable plugs in the form of pins or balls. The method and apparatus utilize plugs as connection bridges between device carriers and motherboard, allowing solid contacts and a rigid aligned sturcture among modules. The direct benefits include relaxation of dimensional tolerances on parts and elimination of the need for high-precision spacers.
Abstract:
A probe card is provided for contacting an electronic component with raised contact elements. In particular, the present invention is useful for contacting a semiconductor wafer with resilient contact elements, such as springs. A probe card is designed to have terminals to mate with the contact elements on the wafer. In a preferred embodiment, the terminals are posts. In a preferred embodiment the terminals include a contact material suitable for repeated contacts. In one particularly preferred embodiment, a space transformer is prepared with contact posts on one side and terminals on the opposing side. An interposer with spring contacts connects a contact on the opposing side of the space transformer to a corresponding terminal on a probe card, which terminal is in turn connected to a terminal which is connectable to a test device such as a conventional tester.
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:
A socket (10, 40, 70, 100) for a leadless ceramic chip carrier (34, 66, 96) comprised of a ceramic material which is preferably substantially identical to the ceramic material composing the leadless chip carrier (34, 66, 96) (typically alumina). The use of the ceramic socket (10, 40, 70, 100) of the present invention provides an essentially exact match between the coefficients of thermal expansion of the chip carrier (34, 66, 96) and the socket and thereby eliminates the problems of the prior art regarding catastrophic failure of the solder joints. Another important feature of the novel leadless chip carrier socket (10, 40, 70, 100) of the present invention (in addition to its ceramic composition) is the incorporation of the decoupling function in the ceramic socket itself. As a result, undesirable lead inductance (present in prior art plastic molded sockets) is reduced as well as more efficient (relative to conventional decoupling schemes) utilization of printed wiring board (36, 68, 98, 106) ''real estate''.