Browse Prior Art Database

Programmable Flexible Tape Cable

IP.com Disclosure Number: IPCOM000089344D
Original Publication Date: 1977-Oct-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Burns, TA: AUTHOR [+3]

Abstract

As shown in Fig. 1, a flexible tape cable 1 provides a single cable design that has the capability of interconnection to an active right or left or both right and left circuitry. Shorting sections 2 and 3 are provided on one end of the tape cable 1. Removing the shorting section by scribing or cutting off the entire corner, as shown at dotted line 4, removes the shorting interconnection that prevents the connection from operating. One cable can be connected to operate from one set of conductors 5, if necessary, or the other set 6, or both sets 5 and 6 by appropriately removing the shorting bars 2 and 3.

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Programmable Flexible Tape Cable

As shown in Fig. 1, a flexible tape cable 1 provides a single cable design that has the capability of interconnection to an active right or left or both right and left circuitry. Shorting sections 2 and 3 are provided on one end of the tape cable
1. Removing the shorting section by scribing or cutting off the entire corner, as shown at dotted line 4, removes the shorting interconnection that prevents the connection from operating. One cable can be connected to operate from one set of conductors 5, if necessary, or the other set 6, or both sets 5 and 6 by appropriately removing the shorting bars 2 and 3.

The cable can then be easily connected to printed-circuit pads via the termination pads provided. Fig. 2 is a cross section of one termination pad 7 taken along lines A-A of Fig. 1. As shown in Fig. 2, the cable 1 comprises a bottom laminate 8 and a top laminate 9, with a conductor 10 expanded for ease of connection to a printed-circuit board (not shown). Reflowed eutectic solder 11 covers both sides of the widened conductor 10 in preparation for connection to the pad of the circuit board. The cutout opening 12 in the top laminate is larger than the cutout opening 13 in the bottom laminate 8 for support of the conductor 10 while providing access to the connection. The cutout opening 12 may be shaped other than circular to permit strain relief to termination pads 7 while allowing access to the interconnection for rework.

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