SMT, PCB, EMS Technical Articles

SMD Nomenclature - in Plain English

Nov 13, 2000 | TopLine Dummy Components

Free 40 page booklet explains about SMD component nomeclature. Lot of drawings. Easy to read. Want to know what 1206 means? Or the difference between a TQFP and LQFP? It's all included....

Publisher: TopLine Dummy Components

TopLine Dummy Components

TopLine has the widest selection of daisy chain test packages and practice boards. In stock CCGA, BGA, CSP, QFP, and test vehicle boards. TopLine is your one stop shop for mechanical samples.

MILLEDGEVILLE, Georgia, USA

Manufacturer

Stencil Cleaner Meets Stringent EPA Rules

Jul 14, 2000 | Chuck Currie

The acronym "EPA" has cast almost as much fear in the hearts of industry as the letters "IRS." The Environmental Protection Agency has a plan to improve its image and actually help manufacturers attain their goals and ISO 14001 requirements....

Publisher: Smart Sonic Stencil Cleaning Systems

Smart Sonic Stencil Cleaning Systems

Our Ultrasonic Stencil cleaners and 440-R-SMT Detergent are US & CA EPA Certified cleaners, that are environmentally and user safe. We are your single source for cleaning any type of solder paste from any fine pitch stencil.

Cleveland, Ohio, USA

Consultant / Service Provider, Manufacturer

Reflow Profiling: The Benefits of Implementing a Ramp-to-Spike Profile

Jun 27, 2000 | David Suraski

This paper shall discuss the appropriate guidelines and troubleshooting methods for reflow profiling, and in particular shall focus upon the benefits of implementing the linear ramp-to-spike profile....

Publisher: AIM Solder

AIM Solder

AIM is a leading global manufacturer of solder assembly materials for the electronics industry.

Montreal, Quebec, Canada

Manufacturer

Environmentally Certified Technologies: A Case Study

Jun 21, 2000 | William C. Schreiber

There was once a time when precision cleaning required minimal thought. Just about anything that was dirty could be placed inside a vapor degreaser and emerge clean and dry in a matter of minutes. Today, precision cleaning decisions are seemingly endless with ever-changing environmental regulations, user safety issues and product compatibility concerns. Technologies range from spray-in-atmosphere to ultrasonics to spray under immersion using aqueous, solvent or semiaqueous chemistries. Which method works and with what chemistry? Will the process be safe or even allowed by the regulating agencies?...

Publisher: Smart Sonic Stencil Cleaning Systems

Smart Sonic Stencil Cleaning Systems

Our Ultrasonic Stencil cleaners and 440-R-SMT Detergent are US & CA EPA Certified cleaners, that are environmentally and user safe. We are your single source for cleaning any type of solder paste from any fine pitch stencil.

Cleveland, Ohio, USA

Consultant / Service Provider, Manufacturer

Dam and Fill Encapsulation for Microelectronic Packages

Aug 27, 1999 | Steven J. Adamson and Christian Q. Ness

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......

Publisher: ASYMTEK Products | Nordson Electronics Solutions

ASYMTEK Products | Nordson Electronics Solutions

A leader in automated fluid dispensing, jetting, and conformal coating. Products include stand-alone dispensing workstations and fully automated, in-line conveyorized systems with advanced process controls.

Carlsbad, California, USA

Manufacturer

Considerations in Dispensing Conformal Coatings

Aug 27, 1999 | John P. Byers and Christopher E. Havlik

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....

Publisher: ASYMTEK Products | Nordson Electronics Solutions

ASYMTEK Products | Nordson Electronics Solutions

A leader in automated fluid dispensing, jetting, and conformal coating. Products include stand-alone dispensing workstations and fully automated, in-line conveyorized systems with advanced process controls.

Carlsbad, California, USA

Manufacturer

Conductive Adhesive Dispensing, Process Considerations

Aug 27, 1999 | Alan Lewis and Alec Babiarz.

Dispensing conductive adhesives in an automated factory environment creates some special challenges. A robust production process starts with understanding the adhesives in their fluid state and which important parameters must be controlled. Developing this understanding requires experience with a large number of materials and valves over time. Common uses of conductive adhesives in surface mount applications, die attach applications, and gasketing are addressed. As vendors of dispensing equipment, the authors see a constant stream of such applications. Dispensing requirements, techniques, and equipment resulting from this experience are discussed. Guidelines for optimizing quality and speed are given....

Publisher: ASYMTEK Products | Nordson Electronics Solutions

ASYMTEK Products | Nordson Electronics Solutions

A leader in automated fluid dispensing, jetting, and conformal coating. Products include stand-alone dispensing workstations and fully automated, in-line conveyorized systems with advanced process controls.

Carlsbad, California, USA

Manufacturer

An Air-Assisted "Airless" Conformal Coating Process

Aug 27, 1999 | Steven Felstein, Joan Lum

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....

Publisher: ASYMTEK Products | Nordson Electronics Solutions

ASYMTEK Products | Nordson Electronics Solutions

A leader in automated fluid dispensing, jetting, and conformal coating. Products include stand-alone dispensing workstations and fully automated, in-line conveyorized systems with advanced process controls.

Carlsbad, California, USA

Manufacturer

Parasitic Extraction for Deep Submicron and Ultra-deep Submicron Designs

Aug 09, 1999 | Cadence Design Systems, Inc.

Shrinking process technologies and increasing design sizes continually challenge design methodologies and EDA tools to develop at an ever-increasing rate. Before the complexities of deep submicron (DSM), gate and transistor delays dominated interconnect delays, and enabled simplified design methodologies that could focus on device analysis. The advent of DSM processes is changing all of this, invalidating assumptions and approximations that existing design methodologies are based upon, and forcing design teams to re-tool. High-capacity parasitic extraction tools are now critical for successful design tape-outs....

Publisher: Cadence Design Systems, Inc.

Cadence Design Systems, Inc.

World's leading EDA company.

San Jose, California, USA

Consultant / Service Provider

Alternatives to HASL: Users Guide for Surface Finishes

Aug 09, 1999 | Dan T. Parquet and David W. Boggs, Merix

A great deal of controversy continues to surround the use of Hot Air Solder Leveling (HASL) in the production of printed circuit boards (PCBs). The financial burden, technological limitations and environmental issues surrounding the HASL process continue to grow. This requires an in-depth review by the printed circuit board manufacturing plant, as well as the assembly operation and instrument designers ( OEMs), to determine what alternative surface finishes are appropriate....

Publisher: Viasystems Group, Inc.