Best-in-Class PCB Fabrication, Assembly, & Components.
Industry Leading PCB Designer's Tools.

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Standard & Custom PCBs Fabricated & Assembled in America

Since 1986, Sierra Circuits has developed a reputation for excellence in PCB prototype manufacturing, optimization, and assembly. From standard PCBs to advanced technology made from exotic metals.

Choose the PCB that’s right for you.

RF and Microwave PCBs

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PCB Component Sourcing and Stocking

Companies managing electronic components have been facing challenging times with successive waves of supply shortages, price hikes and lengthening lead times. By taking care of your PCB component sourcing or stocking, we help you reduce your product development time.

Offering alternatives to long lead times
List of trusted vendors
No supply chain disruptions

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PCB Mass Production

On top of our prototyping specialization, we now offer PCB mass production. Indeed, in 2022, Sierra opened its first facility for large-scale board fabrication with products and services, specializing in defense and space applications.

Flex and rigid-flex
HDI and microelectronics
Controlled impedance
Flying probe testing

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Flying Probe Testing for PCB Assembly

Flying probe testing for PCB assembly use test probes that fly, as the name suggests. The test probes move from one test point to another to detect defects in a board.

FPT is ideal for complex prototype circuits.
Speak to your account manager to add FPT to your order.
Flying probe testing requires ODB++ files.

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Turnkey PRO

The best value for full turnkey PCBs. Manufactured in the USA, fully assembled, and shipped in 5 days.

PCB fabrication, component procurement, and in-house assembly
Dedicated CAM engineer — BOM check, DFA check, and DFM check
Order zero-defect PCBs entirely online and get to market faster.

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Online PCB Fabrication

Instantly quote and order online! Standard technology, rigid PCBs up to 12 layers and 4-mil trace and space

1 – 1,500 completely assembled boards, fabricated to IPC-6012 class 2 specs
Large selection of surface finishes, materials. Options for edge plating, gold fingers, etc.
Zero defects, guaranteed! Complete DFM check by our CAM engineers

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Rigid PCBs

Get an instant quote online and manufacture your boards in as fast as 24 hours.

On-site inventory of the finest materials, up to 30 layers
Routed arrays, edge plating, bevels, and heat sinks
1-day turn-times available

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Flex & Rigid Flex

The highest quality PCBs that bend to the occasion. Guaranteed to perform under stress.

Freedom of design, including placement around edges and folds.
Reduced space and weight
Increased reliability and durability. Standard materials can withstand as many as 200,000 bending cycles.

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HDI PCBs

From medical implant devices to ITAR regulated boards, we fabricate the most reliable HDI PCBs in the U.S.

Blind vias, buried vias, and other microvia techniques
Laser direct imaging, fine lines, and via-in-pad technology
Down to 1.5-mil trace space, 2-mil holes

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Microelectronics PCBs

1.25-mil trace and space with laser-drilled holes at 2 mils, that's about as good as it gets.

Highly advanced and sophisticated small form factor products
IoT devices, wearables, and other portable devices
Medical miniaturization for direct implantation

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Aerospace & Defense PCBs

IPC 6012 class 3/ES PCBs in as fast as 2 days. Rugged, reliable boards, rigorously tested and fully documented.

Next day for standard FR-4 or double-sided PCBs
2–4 days for 4-layer to 8-layer PCBs — 5 days for 10+ layer PCBs
5–10 days for HDI, rigid-flex, flex, and metal core PCBs

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Controlled Impedance

Eliminate signal distortion. Maintain data integrity and signal clarity with impedance control.

Help with your stack-up throughout the design process
Design help, including routing traces, & component placement
Deliver fully assembled boards with -/+ 5% impedance tolerance

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No-Touch PCBs

Self-service boards, rapidly delivered. No-Touch is our fully-online automated PCB fabrication process.

3, 4, or 10 day turnaround
1 – 100 bare boards — built to IPC-A-610 Class 2 specs
Manage your own design and manufacturability — Automated DFM reports before you order

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PCB Assembly

Fully assembled PCBs that work the first time. Ready to ship in as quick as 24 hours.

SMT, BGA, through-hole, and mixed assembly
Rigid-flex PCB assembly
No limit on volume — whether a single prototype or a few thousand production boards

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PCB Design Support

Fully assembled PCBs that work the first time. Ready to ship in as quick as 24 hours.

SMT, BGA, through-hole, and mixed assembly
Rigid-flex PCB assembly
No limit on volume — whether a single prototype or a few thousand production boards

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Talk to a Sierra Circuits PCB Expert today

24 hours a day, 7 days a week.

Call us: +1 (800) 763-7503
Email us: through our Customer Care form

Turnkey PCBs

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

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Standard PCBs

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

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Advanced PCBs

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

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+1 800-763-7503