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Model management for predictive accuracy
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Model Management for Predictive Accuracy

The current trend of miniaturization in products and substrates is expected to continue in most advanced electronic products. Telecommunication and computer applications typically need high density connection boards incorporating smaller passive components, finer pitch IC’s and area array packages.

Probability Distribution FunctionThe key factor in the technically successful evolution is the development of new interconnection processes, such as the use of conductive adhesive with very fine grained inter-connection materials. Consequence is that higher accuracy is required for placing Surface Mount Devices (SMD’s) at the carrier footprints (Figure 1), to ensure together with high precision placed bonding material the required bond quality.

Moreover, very high economical pressures are pushing production facilities to assemble products at very low cost. This requires a continuous reduction in the number of rejects through reliable and stable (in control) assembly processes without the need of inspection systems.

Credit / Source: Assembléon

Read Article...

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Ionic residues on the surface of printed circuit assemblies

Posted by Rosen Arabadzhiev

As a result of equipment damage I have a problem with a cleanliness of printed circuit assemblies. One whole production batch was polluted by ionic residues... »»

Screen blade length

Posted by esoderberg

I have always gone with blade length equal to board width plus 2 inches - 1 inch either side. Is there any technical reason that I could not use a longer blade, say 2.5 inches on either side?... »»

Bubbles in conformal coat

Posted by floydf

I am having trouble with little air bubbles in my conformal coat. It ranges from a few pin sized bubble to looking like spit. We are using Dow 2620 silicone conformal coat applied with a PVA sprayer machine... »»

More Forum Topics:

Programming Mydata...

CP 6 communication error...

Meridian 1030 failures...

Visit the Forum... Have a Question? Ask for Free...


Northwest Design-2-Part Show

Trade Show / Exhibition | The Job Shop Company - Design-2-Part Shows

Wed, September 16, 2009 | Metropolitan Exposition Center, Portland, OR, USA

America's largest and longest running contract manufacturing shows for the sourcing of custom parts, services and design. Regional tradeshows covering the USA provide OEMs the opportunity to meet local and national job shops... »»

Autotestcon 2009

Trade Show/Exhibition IEEE

Mon, September 14 | Disneyland Resort, Anaheim, CA, USA

IEEE AUTOTESTCON is the United States' largest conference focused on automatic test systems for US military systems, and has been held annually since 1965. This year's conference theme, "Mission Assurance through Advanced ATE" will guide the technical program and focus us on the future of automatic test... »»

Engineering Documentation Control / CM Seminar

Seminar / Course | EC3 Corp

Thu, September 17 | Best Western Alpenglo Lodge & Conference Center, Portland, Winter Park, CO, USA

"Bridging The Gap" between Design Engineering and Operations by exceptional Configuration Management. Sets the stage for innovation. Basics and more about engineering releases, bills of material, requesting changes and making changes... »»

More Events:

Control Systems Technology - SCADA and PLC Training...

2009 Medical Electronics Symposium: Drivers for Technology, Health, and the Economy

Schematic Capture with Altium Designer...

Visit the Event Calendar... Add Your Event Now...

Career Center


SMT Operator

Ultimate Staffing Services

Fremont, CA, USA

Must have exp working with FUJI machines - CP4, CP & IP, DEK Machine and GSM with minimum supervision. Must have recent experience working with machines... »»

Manufacturing Engineer: PCB/Electronics


Knoxville, TN, USA

To review engineering documentation for manufacturability and to support transitioning projects to production... »»

SMT Operator Technician

LACE Technologies

St. Charles, IL, USA

We are looking for an individual that values hard work and understands the opportunity of working with a mid-sized company for growth potential...»»

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SMT Process Engineer...

Design Engineer...

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Sr. Manufacturing Engineer

Desired Field: Engineering

Lakewood, CA, USA

A Manufacturing Engineer with over 20 years of experience in developing manufacturing processes for automated and manual assembly... »»

Manufacturing/Process Engineer

Desired Field: Production, Engineering


High Reliability and Commercial electronics manufacturing experience with Circuit Card Assembly (CCA), Electro-Mechanical... »»

Technical Specialist

Desired Field: Maintenance, Production, Technical Support

Kemaman, Malaysia

Conduct repairs and troubleshooting of production equipment to avoid / minimize production downtime...»»

More Resumes:

Quality Control/Production and Management...

Experienced Engineer...

SMT Equipment Technician...

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Industry Associations Events


SMTA - Surface Mount Technology Association is a non-profit international association of companies and individuals (totalling 4,000) involved in all aspects of advanced electronics assembly, surface mount and related technologies. Membership Info

SMTA Certification for SMT Processes and Six Sigma Green Belt


Next Event: Capital Expo & Tech Forum - September 10


IPC - Association Connecting Electronics Industries is a US-based trade association dedicated to the competitive excellence and financial success of its nearly 2,600 member companies which represent all facets of the electronic interconnection industry, including design, printed wiring board manufacturing and electronics assembly. Membership Info

Training & Certification Programs

Standards & Publications - Online Store

Next Event: electronica/Productronica India, IPCA Expo - Bangalore, India - September 8 - 11

SMTnet Express
September 03, 2009

Subscribers: 26190

SMTnet Members:

Companies: 7805

Users: 27501


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