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NEPCON South China '16

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APEX 10

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Atlantic Design/MDM 10

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EDS 10

Atlantic Design/MDM 11

ATLANTIC DESIGN & MFG '13

Atlantic Design/MDM 09

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NEPCON South China '13

ATExpo & IPC MW 08

EDS 07

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Autotestcon 11

Multi tradeshow Product Preview '12

AATE/IPC Midwest 10

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ATE and IPC MW 09

Productronica 09

APEX 09

electronica 08

SMTAI and productronica '13

Atlantic Design/MDM 08

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	Austin American Intros New Cleaning Technology

	Burnet, TX — Austin American Technology (AAT) has introduced a new cleaning technology. Dubbed Progressive Energy Dynamics (PED), this new approach specifically addresses the industry's latest challenges of cleaning around and under tightly spaced components in a lead-free environment. PED began with computational fluid dynamics (CFD) modeling in an effort to maximize mechanical, thermal and chemical energy in the various functional stages of a cleaner. According to the company, the emergence of lead-free and the use of components with spacing down to 1-mil have placed new demands on cleaning in terms of both residue removal and maintaining adequate throughput. There has been a tendency in the industry to "throw horsepower" at the problem, resulting in unwieldy, energy-hungry cleaning systems. Unfortunately, larger pumps and bigger blowers don't solve the problem because they don't really address the problem. Higher pressures and flows at the wrong point in the process can create more harm than good. Three specific steps were identified as necessary: soften the outer, solvent-depleted shell and flux matrix; introduce fluid jets with sufficient energy to create flow channels in the matrix; and erode bulk flux residue via the flow channels. Once these parameters were identified, a PED system of manifolds, nozzles and pump technology was designed to optimize the cleaning process by applying carefully calculated pressures, flows and spray patterns at specific points in the machine. Real-world testing was conducted with boards densely populated with 0603 chip capacitors (average standoff height of 1-mil) and reflow soldered with lead-free paste in a worst-case air environment. The PED system resulted in significant improvements in both residue removal and conveyor speed over standard technology. PED began with computational fluid dynamics (CFD) modeling in an effort to maximize mechanical, thermal and chemical energy in the various functional stages of a cleaner. For more information, contact: Austin American Technology Corp., 401 Industrial Boulevard, Burnet, TX 78611 512-756-4150 Web: http://www.aat-corp.com See at APEX Booth #2249.