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In a race to build tomorrow, the smallest details can have the greatest impact on design integrity, product quality, and speed to market. Since 1986, Sierra Circuits has developed a reputation for excellence in PCB prototype manufacturing, optimization, and assembly.
Your time is priceless. Upload your PCB design files and get an instant online quote for the industry's fastest turnaround time.
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PCBs Fabricated in The United States
Component Supply Chain Visibility
In-House Assembly Options at Scale
Personalized Stack-up Assistance & CAM Engineers
Sierra Circuits has advanced PCB industry standards since 1986. Our engineers can fabricate complex technology that the others won't even try.
From standard PCBs to advanced technology made from exotic metals. Choose the PCB that's right for you.
Turnkey PRO™Fabrication, Procurement, & Assembly. PCBs fully assembled in as fast as 5 days. Start Quote |
Standard PCBsFabrication. Procurement & Assembly optional. Flexible and transparent for advanced creators. Start Quote |
Advanced PCBsComplex technology, with a dedicated CAM Engineer. Stack-up assistance included. Start Quote |
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| Board Type | Quick-turn Rigid PCB prototypes | Standard Rigid PCBs | Rigid, Flex & Rigid-Flex, HDI, Aerospace & Mil-Spec |
| Assembly & Components | Components Included Assembly to IPC-A-610-Class 2 specs | Components & Assembly Optional | Components & Assembly Optional |
| Layer Count | 2, 4, 6, 8-layer boards | Up to 12 layer boards | Up to 30 layer boards |
| Turn Time | 5, 7, and 10 business days | 1 , 2, 3, 4, 5 and 10 business days | Same Day Available - up to 4 Weeks |
| Materials | FR-4 lead-free | FR4, FR4-06, FR4-lead free | FR-4 / High-Temp. FR4 / Rogers / Polyimide / Aluminum Clad / Metal Core / Highspeed / Others |
| Plate Finish | ENIG / HASL | ENIG / HASL / Electrolytic Hard Gold / Electrolytic Soft Gold / Immersion Silver | Electrolytic Hard Gold / Soft Gold / Selective Gold / ENIG / OSP (Shikoku F2) / OSP (Entek) / Immersion Silver / Leaded & Lead-Free HASL |
| Qualifications | Built to IPC-6012 Class 2 Specs No microsection certs or IPC coupons | Built to IPC-6012 Class 2 Specs No microsection certs or IPC coupons | IPC-6012 Class 1, 2, 3, 3D / IPC-6013, Class 1, 2, 3 / MIL-PRF-31032 / MIL-PRF-55110 /ISO 9001:2015 / ISO 13485:2016 / Others |
| Board Thickness | 0.031″ / 0.062″ / 0.093″ | 0.125” / 0.093″ / 0.062″ / 0.047″ / 0.040″ / 0.031″ / 0.020” / 0.014” / 0.010” | Full Range Available |
| Copper Weight | Inner layer copper: 1 oz. Outer layer (finished) copper: 1 oz or 2 oz. | Inner layer copper: 1 oz. Outer layer (finished) copper: 1 oz or 2 oz. | Inner layer copper: .33oz, up to 6oz. Outer layer (finished) copper: 1oz, up to 6oz. |
| Minimum Trace / Space | 4 mil (0.004″) trace / space | 2 mil (0.002″) trace / space | 1.5 mil (0.0015″) trace / space |
| Zero Defect Guarantee | Reduce Re-Spins. Zero Defects, Guaranteed! | Reduce Re-Spins. Zero Defects, Guaranteed! | Reduce Re-Spins. Zero Defects, Guaranteed! |
| Our Pitch |
Turnkey PRO is the Best Value for MOST PCBA Customers. Turnkey PRO sources the whole package, creating a thread from design to delivery. Fabricating PCBs. Procuring parts. Assembling your boards. Order Zero-Defect PCBs entirely online and get to market faster. |
Order the most reliable PCBs, entirely online. Get an instant online quote with expanded options for edge plating, gold fingers, additional materials, and surface finishes. Component Procurement and In-house Assembly optional. Order Zero-Defect PCBs a-la carte for maximum flexibility. |
The world's most advanced PCBs, proudly made in The United States. Exotic materials, blind, buried, and micro-vias, built-up laminations, and the highest signal integrity in the industry. Engineers at the world's most innovative companies choose Sierra Circuits for the most reliable PCBs, made in America. |
| Get an Instant Online Quote | Get an Instant Online Quote | Get a Custom Quote | |
| + Full Specifications for Turnkey PRO | + Full Specifications for Standard PCBs | + Full Capabilities for Advanced PCBs |
Not sure which boards are right for you?
Upload your Design Files and Get a Custom Quote.
Trusted by innovators since 1986
In the race to build tomorrow, Sierra Circuits engineers and PCB designers continually patent new technologies, crossing design barriers—to help innovators bring new products to market.
Other Ways Sierra Circuits Can Help
We have many resources designed to help you, no matter where you are in your journey to becoming a PCB expert.
PCB Manufacturing & Assembly Processes
Knowing how your boards are manufactured and assembled will help you design boards that are cost-effective and technically robust.
Learn PCB ManufacturingSupport
Need help with your Stackup? Want to find out what our chip stock looks like? Have questions about your order? We're here to help.
Contact SupportShare Project with your Engineers
Access Sierra Circuits Project Access (SPX) Portal. Just like our Customer Portal, SPX is encrypted and fully protected.
Visit the SPX Portal
Turn-times as fast as 1 day.
Sierra Circuits can manufacture your PCB and have it expedited to you within 24 hours. Full turnkey boards, with assembly and components in as fast as 5 days. Get an Instant, Itemized Quote
Fabrication, Procurement, & Assembly. PCBs fully assembled in as fast as 5 days.
- Bundled together in an entirely-online process
- Reviewed and tested by Engineers
- DFA & DFM Checks on every order
- Shipped from Silicon Valley in as fast as 5 days
Fabrication. Procurement & Assembly optional. Flexible and transparent for advanced creators.
- Rigid PCBs, built to IPC-6012 Class 2 Specs
- 2 mil (0.002″) trace / space
- DFM Checks on every order
- 24-hour turn-times available
Complex technology, with a dedicated CAM Engineer. Stack-up assistance included.
- Complex PCB requirements
- Mil-Spec & Class 3 with HDI Features
- Blind & Buried Vias
- Flex & Rigid-Flex boards