Browse Prior Art Database

Data Acquisition System for Component Lot Trace

IP.com Disclosure Number: IPCOM000105390D
Original Publication Date: 1993-Jul-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 4 page(s) / 111K

Publishing Venue

IBM

Related People

Imahara, K: AUTHOR

Abstract

Disclosed is a data acquisition system which is designed to generate a data base of electrical components mounted on a printed wiring board (PWB), that is serially identified, and equipped in a product then shipped to the customers. The uniqueness of this system is that the data base generation has been completed automatically at a point of card assembly provided the vintage data of components are ready prior to the production.

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This is the abbreviated version, containing approximately 52% of the total text.

Data Acquisition System for Component Lot Trace

      Disclosed is a data acquisition system which is designed to
generate a data base of electrical components mounted on a printed
wiring board (PWB), that is serially identified, and equipped in a
product then shipped to the customers.  The uniqueness of this system
is that the data base generation has  been completed automatically at
a point of card assembly provided the vintage data of components are
ready prior to the production.

      The conventional method depended on a manual data input at the
end of manufacturing process by using keyboard and scanner.  An
advantage of this system is to reduce the workload required in the
data collection in a case of mass-production.  Another advantage is
to upgrade data integrity by avoiding key-in miss-operation, etc.
The data base are transferred to the host system and consolidated to
a relational data base of total quality management, then the quality
inquiry can be made by searching machine serial, card serial, and
component's vintage code in which manufacturing data are summarized.
The purpose of developing this system is to establish a component
traceability so that a failure analysis can be accelerated, then a
quick decision can be made and a quick recovery of field and
manufacturing line can be expected by performing risk management in a
case of a quality disaster.

      Fig. 1 illustrates the hardware schematic of this system.
The card serial ID (2) on the Printed Wiring Board (3) is recognized
by the scanner (1).  The components (6) are prepared for
manufacturing in the cartridge (4) of a mounting machine and/or a
manual operation stage provided one cartridge is controlled to be
refilled with the same component and vintage code, and are mounted on
a card according to the same sequence of the data input.  The data
input of comp...