Abstract:
A method and apparatus for interconnecting electronic circuits (104) using nearly pure soft annealed gold mechanically compressed within through-plated holes (111). The invention has its application in attaching integrated circuit dice (104) directly to circuit boards (110) by ball bonding gold wires (101) to the bonding pads (105) of the integrated circuit dice (104) in a substantially perpendicular relationship to the surfaces of the dice (104) and inserting the gold leads (101) into through-plated holes (111) of circuit boards (110) which provide an electrical and a mechanical connection once the leads (101) are compressed within the through-plated holes (111). The present invention also finds its application in the interconnection of sandwiched circuit board assemblies (200) where soft gold lead wires are inserted into axially aligned through-plated holes of the circuit boards (212, 214, 216, 217, 219, 221) and compressed so that the gold lead wires compress and buckle within the through-plated holes, forming an electrical connection between the circuit boards (212, 214, 216, 217, 219, 221).
Abstract:
Mechanical means and methods for delivery of solder preforms arranged in generally rectilinear patterns and oriented so that the ends of the solder preforms may join two planar surfaces upon the application of heat. Several embodiments facilitate the delivery of solder preforms in the forms of posts, clips and rings.
Abstract:
오븐 발진기 패키지는 적어도 회로 기판의 대향 측면들 상에 장착된 히터 및 결정 패키지를 포함한다. 비아가 히터로부터 결정 패키지로 열을 전달하기 위해 회로 기판의 본체를 통해 연장된다. 열 전도성 재료의 층이 회로 기판의 본체를 통해 연장되고, 회로 기판 및 그 상부에 장착된 다른 요소 전체에 걸쳐 열을 확산시키기 위해 비아와 열 결합 관계에 있다.
Abstract:
PURPOSE: An electronic circuit unit is provided to achieve improved soldering reliability and shield effect between the electronic circuit unit and a mother board. CONSTITUTION: An electronic circuit unit comprises a circuit board(1) having an upper surface on which electronic components are mounted so as to form a desired electric circuit and a lower surface having a plurality of first land portions(3) connected to the electric circuit; and a connector member(4) arranged in a lower portion of the circuit board. The connector member has an insulating resin portion(4a), a metallic shield plate(5) buried in the insulating resin portion, and a connector terminal(6) having a first terminal portion(6a) exposed and protruded from an upper surface of the insulating resin portion and a second terminal(6c) exposed and protruded from a lower surface of the insulating resin portion. The first terminal portion protruded from the upper surface of the connector terminal is electrically connected to the first land portions and the second terminal portion protruded from the lower surface is electrically connected to second land portions(11) of a mother board(10).
Abstract:
A probe card (321) is provided for contacting an electronic component with raised contact elements. In particular, the present invention is useful for contacting a semiconductor wafer (310) with resilient contact elements (301), such as springs. A probe card (321) is designed to have terminals to mate with the contact elements on the wafer (310). 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 (324) is prepared with contact posts on one side and terminals on the opposing side. An interposer (325) with spring contacts (333, 334) connects a contact (335) on the opposing side of the space transformer (324) to a corresponding terminal (332) on a probe card (321), which terminal (332) is in turn connected to a terminal (331) which is connectable to a test device such as a conventional tester.
Abstract:
A secondary battery pack according to one embodiment of the present invention includes a plurality of unit cells, a connection tab which is electrically connected to positive terminals or negative terminals of the unit cells and includes a protrusion part, a connection plate which is electrically combined with the connection tab and includes a through hole for receiving the protrusion part, and a protection circuit module which is electrically connected to the connection plate and includes a combination groove. The connection plate is located on a first surface of the protection circuit module facing the connection tab and faces the combination groove.