ELECTRICAL INTERCONNECTORS AND CONNECTOR ASSEMBLIES

• US 3,862,790 A
• Filed: 07/10/1972
• Issued: 01/28/1975
• Est. Priority Date: 07/22/1971
• Status: Expired due to Term

• Current Assignee: Plessey Overseas Limited (Marconi Holdings Company Limited)
• Original Assignee: Geoffrey Michael Garner, James Thomas Lynch, Kenneth Fearnside, Rodney John Hurditch, Terrence Ardern Davies, Tony Edward Lanham
• Inventors: Davies, Terrence Ardern, Garner, Geoffrey Michael, Hurditch, Rodney John, Lynch, James Thomas, Lanham, Tony Edward, Fearnside, Kenneth
• Primary Examiner(s): Frazier, Roy D.
• Assistant Examiner(s): Lewis, Terrell P.
• Application Number:
  US05/270,384
• Time in Patent Office: 932 Days
• Field of Search: 339/17,18,19,95,59,154,278,218,219,275,156,176,174 174/68.5
• US Class Current: 439/66
• CPC Class Codes: H01L 23/5385 Assembly of a plurality of insulating substrates
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H05K 3/325 by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor adaptations of leads inserted in holes for press-fit connections H05K3/308
• CPC Class Codes: H05K 3/368 parallel to each other H05K3/361 takes precedence

Abstract

An electrical interconnector for interconnecting individual pads (1) of a first row of pads with corresponding pads (1) of a second row of pads parallel to the first row, which comprises a number of separate parallel conductors (3) running across the space s between the rows of pads, and insulating material 4 retaining the conductors in position relatively to each other, such that the separation p of adjacent conductors in the direction of the rows is less than the dimension a of a pad measured in the same direction. Accurate positioning of the interconnector relatively to the pads is not necessary. Two applications of the interconnector to stacks of insulating boards (2) carrying integrated circuit chips are described, one application also offering the facility of connection to circuits external of the stack.

Claims

1. An electrical circuit assembly which includes a stack of insulating boards having contact pads on their surfaces, each pad extending to an edge of a surface of a board and continuing thence for at least part of the depth of the board to form a land, the lands of a board constituting a row of a co-ordinate array;

an insulating plate carrying conductive strips running perpendicular to the rows of the array and constituting columns of the array; and

an interconnector between the lands and the conductive strips capable of interconnecting individual pads of a first row of pads with corresponding pads in a second row of pads spaced from and parallel to the first row, which interconnector comprises a parallipiped of insulating material having first and second surfaces capable of touching the first and second rows of pads respectively, and, extending through the insulating material from the first to the second surface, a number of spaced parallel cylindrical conductors enclosed within the parallipiped throughout their length and having their transverse end surfaces exposed, the insulating material of the parallipiped retaining the separate conductors in position relatively to each other such that the separation of adjacent conductors in the direction of said rows is less than the dimension of a pad measured in the direction of the rows, and in which the separation of adjacent conductors in a direction perpendicular to said rows is less than the dimension of a pad measured in said perpendicular direction.

2. An electrical interconnector as claimed in claim 1 in which a conductor has a coating which forms a bond between the conductor and the insulating material.

3. An assembly as claimed in claim 1 in which a conductive strip is connected to a conductor over which a connection to an external circuit can be established.

4. An assembly as claimed in claim 1 in which a conductive strip is angled at an edge of an insulating plate to provide a test contact area.