Symposium Conference Proceedings


Author: Eric Camden
Company: Foresite, Inc
Date Published: 5/19/2011   Conference: Symposium

Abstract: Manufacturers face many challenges cleaning today’s smaller components with tighter pitch and lower standoff. With every manufacturing dollar needing to go further than ever there is a movement to save money in the cleaning operations. There are many reasons a company would move to a batch type washer over the traditional inline washing systems. The vast amount of floor space these units consume as well as the utilities and operators needed to maintain the cleaning operation can add up to a real burden on resources of all types. It is this type of thinking that is driving companies to move to shorter inline and batch type cleaners. Of course the capacity of this type of machine will greatly impact the amount of product that can be completed in a timely manner. The limitation of throughput on the smaller equipment will eliminate this option for almost all major contract manufacturers so we are going to focus on the high mix/low volume sector. This group includes Military, Aerospace, and Medical markets as well as others. This paper will compare traditional large in-line cleaning systems to batch (dishwasher) style as well as other batch systems. Each has unique advantages and drawbacks that must be considered when choosing a cleaning system to effectively remove flux residues from your assembly. KEY WORDS Batch Cleaning Flux Removal PCBA Cleaning Challenge

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