The industry-accepted definition of Pb-free is a product where the Pb
content is less than or equal to 0.1% (1000ppm).
The most significant industry initiative is the European Union's Reduction
of Hazardous Substances directive, 2002/95/EC (referred to as RoHS). This
governs the allowable product content of Pb and six other potentially hazardous
materials.
| Substances | Maximum Allowable Content (ppm, parts per million by weight) |
| Pb (lead) | 1000 |
| Hg | 1000 |
| Cd | 100 |
| Cr+6 | 1000 |
| Polybrominated biphenyl (PBBs) | 1000 |
| Polybrominated diphenyl ether (PBDE) | 1000 |
The directive states that these substances must be eliminated or reduced to
acceptable levels by July 1, 2006. Although the RoHS directive is intended for
products used in the European Union, it has emerged as the de facto global
standard for Pb-free products. Products that meet the levels defined above can
be considered to be RoHS-compliant.
Broadcom refers to RoHS-compliant parts as "Pb-free."
Yes, all Broadcom Pb-free parts are RoHS-compliant.
With the exception of Pb, Broadcom's non-Pb-free parts are RoHS-compliant.
"Green" is a generic term concerning the materials used in electronic
components. While "Green," "Pb-free," and "RoHS" are often used interchangeably,
"Green" can sometimes denote the elimination of materials or compounds in
addition to those specified by RoHS (such as halogens, bromine, etc.). However,
there is no consistent definition or standard for "Green" in the industry.
Broadcom's current Pb-free parts are RoHS-compliant and Broadcom is current
working with its manufacturing partners in preparation for anticipated industry
directives concerning a more formal definition of "Green" components. Broadcom
is committed to providing products that satisfy these directives.
Pb is typically used in the non-Pb-free packaging for Broadcom chips. For
Ball Grid Array (BGA) packages, Pb is typically used in the solder balls that
are used to solder the package to the system. For leadframe parts, Pb is
typically used as the lead finish.
Yes, Broadcom's flipchip packages are RoHS-compliant. Flipchip packages use
solder within the package to form the 1st level interconnect between the die
and the package. The long-term reliability of Pb-free solders for the 1st level
interconnect has not been established. Therefore, the RoHS directive has
exempted the solders used for the 1st level interconnect (chip to package) from
Pb-free requirements and Broadcom flipchip packages utilize this exemption to
achieve RoHS compliance. Broadcom's RoHS-compliant flipchip packages use
Pb-free solder balls to form the 2nd level (package-to-board) interconnect and
are compatible with a Pb-free surface mount process. Broadcom continues to work
with partners in the industry on developing a reliable Pb-free chip-to-package
interconnect solder.
Typically, the Pb-free version of a given part appends a "G" on the end of
the part number. For example, BCM1234KPB is the part number of the non-Pb-free
version and BCM1234KPBG is the part number of the Pb-free version. Contact
Broadcom Sales and Marketing for more specifics on actual part numbers and
Pb-free part availability.
All Broadcom package types are available in Pb-free versions. The
availability of specific products should be confirmed with Broadcom Sales and
Marketing.
For most products, Broadcom supports for Pb-free and non-Pb-free versions
for most products.
The support for non-Pb-free parts depends on many factors including market
demand. Broadcom anticipates that many products, over time, will migrate to
Pb-free-only versions based on market conditions. Contact Broadcom Sales and
Marketing for more product-specific details.
Broadcom parts are shipped with Pb-free and RoHS compliant labeling attached
on the shipping box. Additionally, Certificates of Compliance are available
from each supplier assembly site.