Electronics Manufacturing Technical Articles

Electronics Manufacturing Technical Articles

Papers and articles related to SMT, PCB & EMS industry.


  • Europlacer SMT Pick & Place Machines
  • Reflow Ovens
  • Precision, fluid dispensing systems for low volume, high mix, R&D, and high volume 24x7 production
  • Soldering Robots
  • Electronics manufacturing training materials - IPC, solder
  • PCB X-Ray Inspection
  • PCB Rework Tools
752 SMT / PCB Technical Articles

Soldering Faster At Lower Temperatures: A Performance Comparison

May 09, 1999 | Doug Wilkerson, Technical Services Manager.

Studies and tests of comparative soldering iron thermal performance at low temperatures - Metcal direct power soldering technology compared to conventional stored energy soldering irons from leading manufacturers. ...

Publisher: Metcal

Metcal

Manufacturer of high-performance precision rework systems for the electronics bench. Product lines include: Hand Soldering and Desoldering, Convection Rework products, Fume Extraction and Fluid Dispensing tools.

Cypress, California, USA

Adhesives/Dispensing, Manufacturer of Assembly Equipment, Repair/Rework, Soldering

Hand Soldering, Electrical Overstress, and Electrostatic Discharge

May 09, 1999 | Ron LaValley, Edwin Oh

This paper will give the reader a general understanding of EOS and ESD phenomena. It specifically addresses hand soldering's role in EOS and ESD and how to protect against and test for potential problems. It discusses how Metcal Systems address EOS and ESD concerns and how they differ from conventional soldering systems....

Publisher: Metcal

Metcal

Manufacturer of high-performance precision rework systems for the electronics bench. Product lines include: Hand Soldering and Desoldering, Convection Rework products, Fume Extraction and Fluid Dispensing tools.

Cypress, California, USA

Adhesives/Dispensing, Manufacturer of Assembly Equipment, Repair/Rework, Soldering

Extending Soldering Iron Tip Life

May 09, 1999 | Metcal

This Technical Note discusses the construction of solder tips, the various failure modes associated with tip plating (cracking, wear, corrosion, and dewetting), how to diagnose those failure modes, and specific practices that can be taken to minimize or eliminate each one....

Publisher: Metcal

Metcal

Manufacturer of high-performance precision rework systems for the electronics bench. Product lines include: Hand Soldering and Desoldering, Convection Rework products, Fume Extraction and Fluid Dispensing tools.

Cypress, California, USA

Adhesives/Dispensing, Manufacturer of Assembly Equipment, Repair/Rework, Soldering

Surface Mount Rework Techniques

May 09, 1999 | Brian Moylan

This Technical Note outlines, step by step, the easiest ways to remove and replace surface mounted devices, using the lowest possible temperatures. This document discusses the following topics: Removal and replacement of discrete and passive components (capacitors, resistors, SOTs), Removal of two-sided components (SOICs, SOJs, TSOPs), Removal of quad components (PLCCs, QFPs), Replacement of quad components including fine-pitched devices. ...

Publisher: Metcal

Metcal

Manufacturer of high-performance precision rework systems for the electronics bench. Product lines include: Hand Soldering and Desoldering, Convection Rework products, Fume Extraction and Fluid Dispensing tools.

Cypress, California, USA

Adhesives/Dispensing, Manufacturer of Assembly Equipment, Repair/Rework, Soldering

Managing the transition on a global scale -- changing the cleaning agent means changes to equipment, processes, process control specifications and standards.

May 09, 1999 | William G. Kenyon, Sr. Research Associate

The production of electronics began with hand soldering, followed by manual cleaning, which reached its peak during the NASA program. Each step in the process tended to be considered on a stand alone basis, without thought being given to the preceding and following steps. Since each step had its own set of specifications, this led to a "patchwork" approach to overall quality....

Publisher: DuPont

DuPont

World's most dynamic science company, creating sustainable solutions for a better, safer and healthier life.

Wilmington, Delaware, USA

Components/Substrates, Laminates, Manufacturer of Assembly Material

Manufacturing Considerations When Implementing Voc-Free Flux Technology

May 07, 1999 | David Scheiner, Senior Technical Service Engineer Kester

In 1990 the United States Environmental Protection Agency Issued the Clean Air Act. The Clean Air Act and subsequent amendments are designed to limit the use of chemicals that contain volatile organic compounds (VOCs). The document goes into great detail setting limits for allowable VOC emissions for different industries....

Publisher: Kester

Kester

A leading global supplier of assembly materials to the electronic assembly, component and microelectronic marketplaces.

Itasca, Illinois, USA

Manufacturer of Assembly Material, Soldering

SMT Process Recommendations Defect Minimization Methods for a No-Clean SMT Process

May 07, 1999 | Kurt Rajewski

Key competitive advantages can be obtained through the minimization of process defects and disruptions. In today's electronic manufacturing processes there are many variables to optimize. By gaining an understanding of what the defects are, and where they come from, is a key step in the process towards defect free/six sigma manufacturing. In the last decade, Surface Mount Technology processes have been slowly converting towards the No-Clean philosophy. This new trend has spawned new processing issues which need to be addressed. This paper will investigate solutions to current problems in the processing of No-Clean SMT processes....

Publisher: Kester

Kester

A leading global supplier of assembly materials to the electronic assembly, component and microelectronic marketplaces.

Itasca, Illinois, USA

Manufacturer of Assembly Material, Soldering

Soldering to Gold Over Nickel Surfaces

May 07, 1999 | Dennis Bernier

There are many things that can go wrong when soldering to gold plate over nickel surfaces. First of all, we know that gold and solder are not good friends, as any time solder comes into contact with gold, something seems to go wrong. Either the solder bonds to the gold and eventually pulls off as the tin and gold cross-migrate, leaving voids; or the solder completely removes the gold and is expected to bond to the metal which was under the gold....

Publisher: Kester

Kester

A leading global supplier of assembly materials to the electronic assembly, component and microelectronic marketplaces.

Itasca, Illinois, USA

Manufacturer of Assembly Material, Soldering

Characterization of No Clean Solderpaste Residues: The Relationship to In-Circuit Testing

May 07, 1999 | Merlin Kister, Kester Solder

Many manufacturers have now completed the conversion to no clean solder paste. Many factors governed this initial conversion, among those being cosmetics, solder ability, and process ability. In circuit testing or probing through no clean solder paste residues has topically not been a major factor in the conversion decision for several reasons. Due to board design, solder paste was only used on one side of the board and not subjected to testing......

Publisher: Kester

Kester

A leading global supplier of assembly materials to the electronic assembly, component and microelectronic marketplaces.

Itasca, Illinois, USA

Manufacturer of Assembly Material, Soldering

The Nature of White Residue on Printed Circuit Assemblies

May 07, 1999 | Dennis F. Bernier, Vice President, Research & Development, Kester Solder

White residue remaining after cleaning circuit board assemblies can be caused by a variety of chemicals and reactions. Rosin and water-soluble fluxes, circuit board resins and epoxies, component materials and other contamination all contribute to this complex chemistry. This paper discusses many of the sources of the residues that seem to be an ever-increasing occurrence....

Publisher: Kester

Kester

A leading global supplier of assembly materials to the electronic assembly, component and microelectronic marketplaces.

Itasca, Illinois, USA

Manufacturer of Assembly Material, Soldering

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