RoHS Lead-Free Test and Inspection
Legislation is driving the need for lead-free and
environmentally friendly material sets in the printed
circuit board industry. The RoHS (Restriction of
Hazardous Substances) directive commonly know as the
'lead-free' directive. This directive restricts the
usage of Lead, Mercury, Cadmium Hexavalent chromium
(Chromium VI or Cr6+), Polybrominated biphenyls (PBB)
, Polybrominated diphenyl ether (PBDE).
This new material set means questions about the
reliability of products, process issues, and many other
considerations that have been long established for
tin-lead solders. In general lead-free is a less
forgiving process, which means that defect levels are
likely to increase and the need for inspection for
process control and defect containment will increase.
The creation of www.lead-freetest.com was to help
customers with gathering lead-free /RoHS data,
paper/articles,
events,
resources, etc. This
website is a compilation of what is happening in
lead-free in the industry and is a great resource for
customers of all types. This valuable resource is
available as a free service to our valued customers and
to others with an interest in lead-free.
A Study of Lead-Free Wave Soldering
(AIM) As lead-free in wave soldering increases,
questions about copper dissolution into lead-free alloys
have arisen. This study explores this question and
provides data and discussion to support the industry
issue.
Fragility of Pb-free Solder Joints
(SMTnet) Recent
investigations have revealed that Pb-free solder joints
may be fragile, prone to premature interfacial failure
particularly under shock loading, as initially formed or
tend to become so under moderate thermal aging.
This study explores this in depth.
RoHS Compliance and Pb-free Capability: One in the
Same?
(SMT) Though
many in the industry would lead you to believe that a
RoHS compliant product ensure lead-free process
capability, in fact, nothing could be further from the
truth. This paper explores this question in detail.
Agilent statement on the Restriction of Hazardous
Substances (RoHS) Directive
(Agilent
Technologies) Agilent Technologies provides a drawer
statement to customers on the RoHS situation.
China RoHS: Ready or not, it’s here
(Semiconductor International) Editorial style comments
on the China RoHS transition.
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Featured Lead-Free Links
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 Automated
Optical Inspection
Agilent's AOI portfolio provides 3D imaging and
visualization of paste, components and solder joints
while providing superior speed with no performance
compromise and the highest degree of flexibility.
 Automated
X-ray Inspection
Agilent's 5DX systems provide solder joint inspection
that catches more than 90% of all manufacturing defects
for the highest product quality and reliability.
 In-circuit
Test Electrical process test that provides the highest
level of coverage, highest throughput along with the
most accurate, repeatable and transportable platform on
the market.
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