Conventional Tin-Lead and RoHS-Compliant Lead-Free Components
ثبت نشده
چکیده
1 While lead-frame and wire-bond packages can be provided as eutectic or lead-free, currently Altera flip-chip packages are RoHS compliant. We use Exemption #15 for the first Level Connections between the flip-chip die to the substrate (RoHS Exemption #15: Lead in solders to complete a viable electrical connection between the semiconductor die and the carrier within the integrated circuit flip-chip packages). For the remainder of this application note, the term Pb-free is used to refer to the BGA solutions provided with Pb-free package solder balls. This is considered the second Level Connections between the package and the PCBs.
منابع مشابه
Challenges in Manufacturing Reliable Lead-Free and RoHS-Compliant Components
The push for lead-free or RoHS-compliant products is resulting in significant changes in packaging materials. Manufacturers of electronic equipment require materials that consistently withstand peak reflow temperatures of 240°C to 260°C. Reflow soldering at these extreme temperatures, especially after extended moisture exposure, introduces several challenges that must be solved to produce relia...
متن کاملElimination of Cadmium and Lead from Autocatalytic Nickel Chemistry for Electronics Applications
The elimination of compounds such as lead (Pb) and cadmium (Cd) from electrical and electronic equipment as a result of the Restriction of Hazardous Substances (RoHS) annex of the European Union’s Waste from Electrical and Electronic Equipment (WEEE) Directive 2002/95/EC is rapidly approaching the deadline of July 1, 2006. While the RoHS annex to the WEEE directive specifically refers to restri...
متن کاملISA Standard 71.04: Changes Required for Protection of Today's Process Control Equipment
Corrosion-induced failures remain frequent in electronics products used in industrial environments. The International Society for Automation (ISA) Standard 71.04-1985 provides a classification system using corrosion (or reactivity) monitoring to determine the corrosive potential of an environment towards electronic equipment. Changes to electronic equipment mandated by the European Union direct...
متن کاملA Novel Design for Production of Efficient Flexible Lead-Free Shields against X-ray Photons in Diagnostic Energy Range
Background: Lead-based radiation shields are widely used in radiology departments to protect both workers and patients from any unnecessary exposure to ionizing radiation. Recently there has been a great deal of concern expressed about the toxicity of lead. Human lead toxicity is well documented. In that light, production of environmentally-friendly lead-free radiation shields with less weight ...
متن کاملRoHS Implementation Challenges
Implementation of the RoHS presents special challenges for small and medium sized companies. Limited staff and dependence on outsourced services creates cost burdens for smaller OEMs. The first major challenge is conversion of existing product Bills of Materials. Conversion is usually much more involved than just re-specifying RoHS compliant parts on the AVL. For some components, it may be diff...
متن کامل