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Lead Free Soldering

Lead Free Circuit Board Assembly

Lead Free Rework

Lead Free PCB

ESP now offers a robust Lead free assembly process for Surface Mount Technology (SMT) and Through-Hole Technology (THT/PTH) Assemblies.  We offer RoHS compliant assemblies for both our domestic and overseas customers.

The transition to Lead Free will impact most aspects of manufacturing operations. We support customers through the challenging transition. ESP has the engineering, processes and capabilities to make your transition go smoothly and for you to quickly deliver lead-free products to market.

The ESP Offering Includes:

• Design Review
• BOM analysis
• RoHS Sourcing
• RoHS Manufacturing
• Material Declaration Sheets
• Lead-Free Assembly
• Assured Lead-Free Quality

Worldwide Compliance to New Environmental Standards

• Lead Free
• RoHS
• WEEE
• Green

New and Rework Lead-Free PCB Assemblies

Successful rework and assembly methods have been developed with lead-free solders for all types of components. Successful manufacturing and rework methods have been developed with lead-free solders (including Sn/Ag/Cu or Sn/Ag alloys) including components removal/replacement, jumper wires, trace and pad repairs and BGAs. The soldering parameters are adjusted to accommodate the higher melting temperature and lower wetability of the lead-free solder. We have developed practices and processes that deal with the issues related to handling, reworking, tracking and inspecting lead free PCB assemblies.

Our process studies have shown that reliable lead-free solder joints, with proper grain structures and inter-metallic formation, can be produced using appropriate manufacturing and rework processes utilized by Electronic Service Provider.  Please give us a call so we can help.

Lead Free rework including BGA reballing, removal and replacement services.

Lead Free PCB Information Links:

• Source: George Maharage Reviews "Lead-Free Soldering in Electronics" by Katsuaki Suganuma "Lead containing solders have been used as an interconnecting and surface coating material in various electrical and electronic applications for decades. The main driving forces that affect current and future requirements of solders for electronic applications are the demand on the level of performance and the concern over health hazards of lead. The latter concern had lead to government legislation and regulations that have continued to impact the future use of lead. Lead and its compounds have been rated as one of the top 17 chemicals that impose the greatest threat to human health. By 1st July 2006, companies selling electronics products to the European Union nations and China must ensure that their products and components comply with the Waste Electrical and Electronic Equipment (WEEE) directive in order to stay on the Single Market. This directive aims to minimize the impacts of electrical and electronic equipment on the environment during their life times and when they become waste. This means the manufacturers of electronic products will have to convert to a lead-free manufacturing process." EU European Lead Free and Heavy Metal Free Regulations (full text)

• Study and recommendations into using lead free printed circuit board finishes.

• "The effects of Lead Free on PCB Fabrication"

• Lead-Free Solder Initiative and Circuit Board Label FAQ's

• Is Lead-Free Really Free? by Bob Nevesl

• Intermetallic Growth on PWBs Soldered with Sn3.8Ag0.7Cu.

• UCLA-Pb-free solder and wetting reactions

• Lead-Free: Metallization for Flip-Chip Packaging

• Effect of PWB Plating on the Microstructure and Reliability of SnAgCu Solder Joints

• IPC Solder Products Value Council White Paper IPC-SPVC-WP-006 Round Robin Testing and Analysis Lead Free Alloys: Tin, Silver, Copper

• Danish EPA- Survey on Lead Free Solder Systems (PDF)

• Reflow Soldering -Am I in risk if I use tin-lead finished components in a lead-free process?

• Lead Free Magazine

• NIST-Review and Analysis of Lead-Free Solder Material Properties: Sn-Ag-Cu Properties and Creep Data

• NIST- Phase Diagrams & Computational Thermodynamics

• Database for Solder Properties with Emphasis on New Lead-free Solders

• Need More Sources-Try our Links Page

Please call us for your Lead Free Assembly work.  We are ready.

Electronic Service Provider, Inc.

Telephone: 206-388-4800     Fax: 206-575-4684

Location:    950 Andover Park East,  Seattle, WA 98188     

Information & Quotes: Service and Sales Team