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In Situ Forming Stand-Off Interconnection

IP.com Disclosure Number: IPCOM000039179D
Original Publication Date: 1987-Apr-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Ecker, ME: AUTHOR [+2]

Abstract

A method is provided for effecting a stand-off connection for surface mountable components/hybrid pin wire loop connections. The loop is formed so as to provide a protrusion of the wire a fixed distance above the surface of the wiring structure by a device that works as follows. (Image Omitted) As seen in Fig. 1, a wire feed assembly 1 dispenses insulated copper wire 2 into an adhesive 3 which is applied to the surface of a printed circuit card 4. An ultrasonic anvil 5 trails the wire 2 and embeds wire 2 into adhesive 3 which is a partially cured resin. A blade 6 severs the wire 2 when desired. The anvil 5 consists of two halves which move independently and contain grooves 7 so that anvil 5 acts as a wire-forming die set.

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In Situ Forming Stand-Off Interconnection

A method is provided for effecting a stand-off connection for surface mountable components/hybrid pin wire loop connections. The loop is formed so as to provide a protrusion of the wire a fixed distance above the surface of the wiring structure by a device that works as follows.

(Image Omitted)

As seen in Fig. 1, a wire feed assembly 1 dispenses insulated copper wire 2 into an adhesive 3 which is applied to the surface of a printed circuit card 4. An ultrasonic anvil 5 trails the wire 2 and embeds wire 2 into adhesive 3 which is a partially cured resin. A blade 6 severs the wire 2 when desired. The anvil 5 consists of two halves which move independently and contain grooves 7 so that anvil 5 acts as a wire-forming die set. The two halves of anvil 5 are guided along the z axis by keys (not seen) so that they maintain alignment but can move independently. The wire-feed assembly 1 has a cam sleeve 8 which serves to swivel wire dispenser 9 about point A. The sleeve 8 fits over support shaft 10. A wire snubber 11 is positioned in an open slot located between the wire-forming grooves 7 in the anvil 5. The wire snubber 11 is used to engage the wire loop when in the topmost position in the forming grooves to keep the loop end in position during swivel feed motion or downward motion of the movable part of the anvil 5. The wire loop is formed when the left half of the split anvil 5 has embedded and anchors the wire 2 while the right...