公开(公告)号：DE3883584T2

公开(公告)日：1994-04-21

申请号：DE3883584

申请日：1988-03-29

Applicant: IBM

Inventor： FEY DONALD ,  PIERSON MARK VINCENT ,  LEGG JOHN THOMAS

IPC: B21C23/24 ,  B21C25/02 ,  B21J5/06 ,  B29C45/14 ,  B29L31/34 ,  H01R43/20 ,  H05K1/09 ,  H05K3/10 ,  H05K3/40 ,  H01R43/16

Abstract: Method and apparatus utilizing the known technique of extrusion to form a plurality of very small pins, with diameters of 0,5 mm or smaller, in a substrate (14) of electrically nonconductive material. The number of pins is 360 or more, and the electrically conductive material described in the extrusion process is copper. A pin die (12) is formed with the same number and pattern of holes as are in a blank substrate, and it is positioned over an extrusion die (13) with matching orifices (19, 20) that is fixed on an extrusion press (46). A head die (11) presses the blank substrate firmly on the pin die during the extrusion operation, and when completed, the pins are sheared and the substrate is ejected as a new blank is positioned to repeat the cycle.

公开(公告)号：DE3883584D1

公开(公告)日：1993-10-07

申请号：DE3883584

申请日：1988-03-29

Applicant: IBM

Inventor： FEY DONALD ,  PIERSON MARK VINCENT ,  LEGG JOHN THOMAS

IPC: B21C23/24 ,  B21C25/02 ,  B21J5/06 ,  B29C45/14 ,  B29L31/34 ,  H01R43/20 ,  H05K1/09 ,  H05K3/10 ,  H05K3/40 ,  H01R43/16

Abstract: Method and apparatus utilizing the known technique of extrusion to form a plurality of very small pins, with diameters of 0,5 mm or smaller, in a substrate (14) of electrically nonconductive material. The number of pins is 360 or more, and the electrically conductive material described in the extrusion process is copper. A pin die (12) is formed with the same number and pattern of holes as are in a blank substrate, and it is positioned over an extrusion die (13) with matching orifices (19, 20) that is fixed on an extrusion press (46). A head die (11) presses the blank substrate firmly on the pin die during the extrusion operation, and when completed, the pins are sheared and the substrate is ejected as a new blank is positioned to repeat the cycle.