Browse Prior Art Database

System Repair

IP.com Disclosure Number: IPCOM000089018D
Original Publication Date: 1977-Sep-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Myers, FR: AUTHOR [+3]

Abstract

This method provides for resuming the operation of a system either at a factory or in a customer's office when it has been determined that a given program will not operate properly and that a change in the logic design of the system is required. Due to significant chip, module, and card turn-around time, the system would not be operational in a customer's office for that length of time. The present method circumvents this problem and provides a means of making the system operational in hours or days rather than weeks or months.

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System Repair

This method provides for resuming the operation of a system either at a factory or in a customer's office when it has been determined that a given program will not operate properly and that a change in the logic design of the system is required. Due to significant chip, module, and card turn-around time, the system would not be operational in a customer's office for that length of time. The present method circumvents this problem and provides a means of making the system operational in hours or days rather than weeks or months.

As shown, when it has been determined that a chip redesign is required, that portion of the chip or the total chip is duplicated with a required correction by discretely wiring one or more new chips with the required function. These additional chips are contained on the same card, enlarged, if necessary, that carries the original circuitry. The discrete wiring is provided from the chip I/O to the required module I/O's by micro-surface welding one or more 1.5-mil insulated wires. Through discrete wiring as well as printed circuitry in the second level carrier, the desired function is created. This feature, then, serves for the interim period while the chip is being redesigned.

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