ROHS COMPLIANT CIRCUIT BOARDS

KINGSIGNAL'S ROHS COMPLIANT CIRCUIT BOARDS

RoHS, or the Restriction of Hazardous Substances, focuses on six specific materials that should no longer be used, or should have limited use in printed circuit boards:

Of the above list, most of us would immediately identify the first few but the last two on the list are fire retardants that are specific to plastic. It also includes information on four different classes of phthalates.

The Max concentration amount is applied to the use amounts per product and it is determined by the weight of Homogenous material in your PCBs.

Types Of PCB Solder Mask Colors



RoHS Restricted Materials
Banned SubstanceRoHS LIMIT: MCV* PPM
Lead (Pb)1000
Mercury (Hg)1000
Cadmium (Cd)100
Hexavalent Chromium (Cr+6)1000
Polybrominated Biphenyl (PBB)1000
Polybrominated Diphenyl Ether (PBDE)1000

Identification of RoHs Boards

One of the significant aspects of becoming an organization that follows the RoHS compliance is that it has to accurately label the printed circuit boards and other material that meets or follows these guidelines. Like any other RoHS PCBs, we would rather offer you as much documents as possible so you are sure that the materials you are using are appropriate and harmless.

With regard to circuit boards that are compliant with RoHS, this will comprise the RoHS Certificate of Conformance to each shipment and the packaging of all relevant items will bear the RoHS/Pb-Free labels.

RoHs Compliant Surface Finishes and Materials

Surface FinishesShelf LifeCo-Planarity
ENIG12+ MonthsYes
Immersion Silver6-12 MonthsYes
Immersion Tin3-6 MonthsYes
Lead Free HASL12+ MonthsModerate
OSP6-12 MonthsYes

Substrate materials include a variety of Isola, Polyclad Rogers, Getek and Nelco products, for varied electrical performances and loss rates. Most RoHS-compliant PCBs can use multiple options from each of these lists.

CONTACT US

For customers who require new products with complex circuit boards and have tight release schedules, we provide technology and expertise from prototype to production. You can contact us through the methods below to discuss your project with our technical experts immediately. We will be in touch within 24 Reply within hours.
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