Application of design of experiment (DOE) in printed circuit board assembly (PCBA) industry
Loading...
Date
2005-03
Authors
Vaithilingam, Mathaeswari
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Printed circuit board assembly (PCBA) is a process of mounting and inserting
components to printed circuit board (PCB) by means of several principle processes such
as Manual Insertion, Auto Insertion (Axial & Radial), Wave Soldering, Surface Mount
Technology and Box Build.
Manufacturers of PCBA are forced to produce better quality with less cost in order to
stay in the business as globalization taking shape. To achieve such a goal,
manufacturers are forced to strive to attain and maintain high first pass-yield.
Hence, Design of Experiments (DOE) is one of the statistical tools that can be used by
the manufacturers of PCBA to purposefully evaluate and optimize designs and
processes; so that the manufacturers can achieve greater first pass yield and lower
wastage which attributes to decrease the product cost.
A project was implemented in a PCBA manufacturing company using the Full Factorial
Design with two levels for the wave sold~g process with the aid of MINIT AB
Software. And the objectives of the experiment were to: determine the key factors of the
process and optimize the process for higher yield.
The results of the experiments were marvelous, the yield at the wave soldering
increased 90.6 to 97.4. At the same time the key factors were identified and monitored
closely to minimize variations.
Description
Keywords
Manufacturers of PCBA are forced to produce better quality with less cost , in order to stay in the business