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An Air-Assisted "Airless" Conformal Coating Process

Technical Library | 1999-08-27 09:18:58.0

A need to move beyond aerosol sprays and dipping leads to a development that answers tough requirements for controlled coverage, low waste, and environmental restrictions.

Nordson ASYMTEK

Conformal Coating Process Characterization Considerations

Technical Library | 2013-09-25 20:57:24.0

Conformal coating is an enabling process that allows for the ruggedizing of electronic devices and modules. As the process increases the durability of electronics that are subjected to various end-use environmental conditions, it adds value to the product. While it does add value, consumers and manufacturers expect the electronics to work when subjected to dirt, humidity, moisture, corrosive materials, and various other contaminants. This expectation results in a drive to minimize the cost of the process. The lowest cost of ownership for a conformal coating process occurs by utilizing automated selective conformal coating equipment.

Nordson ASYMTEK

Thermal Residue Fingerprinting: A Revolutionary Approach to Develop a Selective Cleaning Solution

Technical Library | 2009-07-01 09:24:25.0

During the last 5 years, the processes to remove flux residues especially for lead-free and challenging geometries have demonstrated new cleaning obstacles which have to be overcome.i A new methodology has been recently developed to further increase the propensity for successful cleaning.ii At the core of this method is the thermal identification of the residue matrix. Thermal energy changes the physical state, i.e. transitions between liquid, solid and gas phases. By taking advantage of such specific information during phase transitions, the cleaning process can be tailored to such settings, which in turn increases the cleaning success significantly.

ZESTRON Americas

Back to Basics – Why Clean?

Technical Library | 2011-06-28 16:10:29.0

ZESTRON America’s spring edition of ZESTRON News goes back to basics providing the latest information on the topics of cleaning in the electronics manufacturing industry.

ZESTRON Americas

Dispensing EMI Shielding Materials: An Alternative to Sputtering

Technical Library | 2020-02-26 23:24:02.0

Shielding electronic systems against electromagnetic interference (EMI) has become a hot topic. Technological advancements toward 5G standards, wireless charging of mobile electronics, in-package antenna integration, and system-inpackage (SiP) adoption are driving the need to apply more effective EMI shielding and isolation to component packages and larger modules. For conformal shielding, EMI shielding materials for exterior package surfaces have mostly been applied with a physical vapor deposition (PVD) process of sputtering, leveraging front-end packaging technologies to back-end packaging applications. However, sputtering technology challenges in scalability and cost along with advancements in dispensable materials are driving considerations for alternative dispensing techniques for EMI shielding.

Nordson ASYMTEK

Considerations in Dispensing Conformal Coatings

Technical Library | 1999-08-27 09:27:10.0

Conformal coating is a material that is applied to electronic products or assemblies to protect them from solvents, moisture, dust or other contaminants that may cause harm. Coating also prevents dendrite growth, which may result in product failure. This paper will discuss the variables that affect the application of conformal coatings, and review in detail those variables that impact the process of selective coating of printed circuit boards.

Nordson ASYMTEK

Dam and Fill Encapsulation for Microelectronic Packages

Technical Library | 1999-08-27 09:29:49.0

Contract packaging houses have to contend with a large mix of die types and products. Flexibility and quick turnaround of package types is a must in this industry. Traditional methods of die encapsulation, (i.e., use of transfer-molding techniques), are only cost effective when producing a large number of components. Liquid encapsulants now provide similar levels of reliability1, and are cost effective...

Nordson ASYMTEK

Agilent 3070

Agilent 3070

Used SMT Equipment | In-Circuit Testers

2) Controller(s) B180L & RP5700 ** includes switch boxes and cables ** (2) ASRU C Cards (2) Control Xt Cards (18) Hybrid Double Density Pin Cards (2) 6624 Power Supplies (1) Printer Condition: Complete & Operational “Passes Diagnostics”

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Speedline UP 2000 Hi E

Speedline UP 2000 Hi E

Used SMT Equipment | Screen Printers

  2002 Speedline UP 2000 Hi E Screen Printer   Refurbished by OEM in 2006   Serial: 21223   Features: Cognex 5000; 4 Axis Motion Control; Tactile Sensor; Pass Through Conveyor; 2D Post Print Inspection; Y Snuggers; Vacuum Stencil Wiper;

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Seica Strategy

Seica Strategy

Used SMT Equipment | In-Circuit Testers

  2006 Seica Strategy In-Circuit Tester Power: 110V; 60Hz Note: The system passes all system diagnostics. It will be licensed and supported by Seica. Features: O/S: Windows 7 960 Analog Channels Open IC Pin Detection Manual Bar Code R

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