We currently provide custom quotes for all your Lead Free circuit boards. We also provide Instant Online Pricing for Lead free boards. Just go to Web PCBs and quote your boards with Lead-free material and Lead-free HAL finish.
Q. Can Sierra Proto Express produce Lead Free PCBs?
Answer: Yes. We can and have been providing customers lead free circuit boards
since early 2005.
We currently provide custom quotes for all your Lead Free circuit boards. We also provide Instant Online Pricing for Lead free boards. Just go to Web PCBs and quote your boards with Lead-free material and Lead-free HAL finish.
In the spirit of educating our customers, we have given details below so you can fully appreciate the ramifications of RoHS /WEEE compliance to PCBs and PCB assembly.
The main thrust of the RoHS requirement is that 6 hazardous substances may not exceed strict limits set by these directives. These substances are lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl and polybrominated biphenyl ethers. These substances are limited to 1000 parts per million (0.1%) with the exception of cadmium which is restricted to 100 parts per million (0.01%). For the printed circuit board industry the restrictions on lead and polybrominates (used as flame retardants in plastics, i.e. epoxy resins) are far reaching.
Call and speak to a
Personal Service Representative about
your order, products and more 1-800-763-7503 x 500
Q. How do all these new directives about lead free affect my PCBs?
Answer:
For many years the electronic industries have used tin/lead solder to join the components to the printed circuit boards. The board fabricators have also used tin/lead solders as a surface finish to protect the copper from corrosion. The 63/37 tin lead ratio of solder fit well within the assembly thermal parameters and the physical limitations of the base materials. The standard FR-4 laminates were also compatible with the wave solder systems. RoHS requirements have changed the rules! With the new directive, tin lead solders are not allowed and therefore major changes are required in the printed circuit board fabrication and assembly arenas to adapt to this.
Q. So what is Sierra's solution?
Answer:
Sierra Proto Express has addressed these concerns in a manner that is beneficial to both the assembler and the end user of the printed circuit boards that we manufacture. Our lead free boards are made with laminate that have a higher Td (decomposition temperature) to withstand the increased temperature and dwell times required during assembly. The plating finishes that we can offer are also RoHS compatible. Currently the most commonly used lead free material is Isola IS410 and the lead-free finishes like immersion gold, immersion silver, immersion white tin or Lead free HASL (using SN100CL lead free solder from Florida CirTech). Sierra Proto Express has invested considerable time in research, process evaluation and capital expenditures to provide a reliable lead free product.
Sierra Proto Express is committed to helping you convert to the requirements of RoHS/WEEE directives.
Q. How do I order lead free PCBs from Sierra Proto Express?
Answer: If you have a lead free board design and want a quote, please go to our custom quote form and upload your file. We will send you a quote within two hours.
Call today to speak with an Account Representative at
1-800-763-7503 x 500.
To get a quote submit your gerber files to
www.protoexpress.com/customquote
