White Papers

Design for Manufacturing (DFM): Verifying Component Selection

by New Age Technologies

Abstract: When qualifying any component for a RoHS design or conversion, it is important to document in the item
master record what processes the component can withstand and how many heat cycles it can endure. A low
ESR capacitor in an 1812 package may indeed be RoHS compliant but only be RoHS process compatible to
certain processes. The equipment used to process the design must also be taken into account. Re-flow ovens
that were well suited for lead processing may limit the options available for RoHS processing. Through-hole
component selection and thermal relief is much more critical with RoHS processing than it was with SN63.
It is critical to qualify each component or family of components to a defined process or set of processes to
avoid quality and reliability issues.

Published: 2008

Choosing the Right EMS Provider for Medical Products Outsourcing

Advice for medical product OEMs on how to execute the supplier evaluation and selection process, detailing such issues as the three key process capabilities on which to evaluate suppliers; defining your outsourcing strategy; matching your business profile to the prospective vendor; requiring flexibility as a must-have for high-mix, low-volume products; finding a personality “fit”; understanding new product introduction strategy; recognizing enterprise resource planning as a key capability, and buying according to total acquisition cost rather than price.

Failure Mechanisms in High Voltage Printed Circuit Boards

High voltage designs often adhere to IPC, UL or MIL requirements. However, blindly following these specifications can cause heartburn when dealing with space constraints or insulation degradation experienced in severe environments. This white paper written by DfR Solutions provides clear and concise understanding of industry specifications, the mechanisms that induce failure in high voltage designs and how to avoid them.

Xbox 360 "Red Ring of Death" Hardware Failure

Since the product's introduction in November, 2005, a significant quantity of Microsoft's Xbox 360 game consoles have experienced a field malfunction that is indicated by three flashing red LEDs on the front of the console. This error function, which designates a critical hardware failure and renders the unit inoperable, is known among gamers as the "Red Ring of Death" and has spawned numerous user forums and web postings that claim to offer easy "fixes" for out-of-warranty units or for users who lack the patience to return their systems to an authorized repair center.

This white paper contains findings, conclusions, and recommendations for the proper equipment and techniques needed to repair the consoles and eliminate future recurrence of the problems.

Via In Pad Guidelines

In the assembly world, putting vias directly in surface mount pads is often not recommended. But for routing large or fine-pitch BGAs, bypass capacitors, thermal management, and grounding on high-frequency parts, via-in-pad can be an effective, if demanding, solution.

Global Impact of the Accelerating Cost Increase of Metals on the Assembly Electronics Industry

The participating members of the IPC Solder Products Value Council are compelled to clearly articulate the current situation regarding the global supply and demand of two crucial metallic elements to the Electronics Industry. The cost of tin and silver have reached 19-year highs and it is important for our industry to understand the implications of this kind of cost increase on the supply of solder alloys.

“Selecting an Electronics Manufacturing Services (EMS) Partner for Military/Government Applications: 7 Things You Must Know,” by Ed Evangelista of Federal Electronics,

Abstract: Seven things defense contractors must know before selecting an EMS partner for outsourcing military and government projects is the theme of a free white paper. This paper provides how-to advice on such issues as determining the appropriate outsourcing strategy; matching business profiles and capabilities; addressing product mix; enterprise resource planning; new product introductions, and cost strategies and issues. It is available at

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