The European Union's Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS) bans the use of cadmium, hexavalent chromium, lead, mercury, PBBs (polybrominated
biphenyls), and PBDEs (polybrominated diphenyl ethers) in electronic product and
components. This policy went into effect in July 2006. Due to
environmental concerns, the need for lead-free solutions in electronic
components and systems has received considerable attention within the
semiconductor and electronics industries.
Digital Control Systems, Inc. (DCS) and many of our customers are affected by
this legislation, in particular as it relates to lead in soldering matierals. This
legislation is similar to the Chlorofluorocarbon (CFC) elimination requirements
but the impact of lead free solders is much wider than the effects caused by CFC
elimination. Lead is a major constituent in traditional tin-lead solders.
compatibility issues are the primary concern with moving to lead-free components
and solders. Certain alloys, when
used on a component or board coated with lead-tin solder, can form
intermetallics, which will reduce the resulting solder joints mechanical
integrity. Alternative lead-free
solder alloys are being developed, but their introduction into electronics
manufacturing has been slow due to the major changes to current manufacturing
processes, electronic components, and inspection requirements.
solder alloys generally require higher temperatures, up to 260°C, as opposed to
215°C, to insure optimal solder joints, which can affect the reliability of
boards and components. DCS has focused its efforts on sourcing, testing and qualifying
lead free solders and components.
While the industry strives to create lead-free alternatives that are equally durable, some applications (i.e. certain medical equipment, etc.) is exempt from complaince with the RoHS Directive. In these cases, the well-established performance of lead solder may be considered critical, and lead-based solder may be specifically requested. Generally speaking, though, DCS has successfully made the transition to RoHS-compliant materials and processes.
DCS is closely monitoring the ongoing legislation and
implementation of RoHS-style standards across various industries and locations.
Digital Control Systems, Inc. is primarily
dedicated to ensuring our compliance and the compliance of our customers and
partners. DCS is a green business,
and we are committed to providing the most environmentally responsible products
Control Systems, Inc. manufacturers robust parametric controls and gas sensors
for the Laboratory, HVAC, Greenhouse and Industrial marketplaces worldwide. Our product portfolio includes the AirSense™ line of CO2 Monitors, the Multistat™ Temperature Controls, and Servomax™ Speed Controls. Digital Control Systems, Inc is committed to your success.
Restriction of the use of certain Hazardous Substances (RoHS)
Read Digital Control Systems' statement on
the European Union's Directive for the Restriction on the use of certain Hazardous Substances (RoHS). Click