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Sierra Circuits is Your PCB Fab and Assembly One-Stop Shop

Author Profile img: The Sierra Circuits Team

By The Sierra Circuits Team

March 28, 2018 | 0 Comments


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Sierra Circuits is more than just a leading PCB manufacturer. We are a one-stop shop for all your PCB assembly needs. We provide in-house fabrication, assembly and turnkey services within five days or less.

Shipping boards between vendors can lead to delays, miscommunications and other logistical headaches making it difficult to stick to your timeline, manage cost and hit your quality. At Sierra Circuits, we are your quickturn one-stop source for all of your PCB manufacturing needs. From fabrication to assembly, Sierra Circuits will create, source components and populate your boards on site at our Silicon Valley production facilities.

No more miscommunication between multiple vendors, no more delays, Sierra Circuits is exactly what you have been looking for!





Receive fabrication and assembly prices within minutes. Upload your fabrication and assembly files as one order.
We handle it all, including ordering and receiving components. Sierra checks multiple sources for components, so you don’t have to. We work with several distributors, including Digi-key and Mouser.
Prevent delays: find out the pricing and availability of components within minutes. Go through our seven-point checklist before ordering.


Quote online and receive your quote instantly. Sierra Circuits is proud to be a select group of PCB companies to offer this tool. Complete your assembly quote online in minutes.
Our online quoting allows you to order assembly in five days or less. We provide competitive prices and fast delivery times.
  • No Charge For Stencils
  • No Charge For Tooling
  • No Charge For Pinwork & AOI




  • ISO 9001:2008 certified
  • ISO:13485:2003 certified
  • RoHS
  • MIL-PRF-55110
  • ITAR


  • Through-Hole Assembly — Components are mounted by inserting leads into holes which are then covered by solder.
  • SMT Assembly — Components are mounted by placing them directly onto the PCB’s surface.
  • Mixed Technology Assembly — Both Through-Hole and SMT components are housed on the PCB.

Also read: Juki Pick-and-Place Assembly Machine in Action


  • Single or double-sided mixed technology or SMT (Surface Mount) for PCB assembly.
  • BGA, micro-BGA, QFN, CSP and any leadless devices assembly with 100% x-ray inspection.
  • PCB board components, including all types of BGAs, QFNs, CSPs, 0201, 01005, POP, and Pressfit components in small quantities.
  • DFA process identifies almost all manufacturing issues before actual assembly saving production holdups.


Traditional PCB Assembly tooling fees cover a broad range of services. A majority of them fall under NRE charges, or non-recurring engineering charges. Sierra Circuits waives the tooling fees on all orders. The chart below describes what the tooling costs covers. Check out the differences between traditional tooling procedures and the more modern procedures Sierra provides.

Sierra Circuits’ Methods

Traditional Methods
    • Using LDI offers better layer-to-layer
Traditional Printing
  • Artwork programs include plot files for
    individual film generation (NRE) and
    individual negatives (tooling).
Automated Testing
    • Flying probe benefits include “soft touch”
      gold pins leave little to no markings on
      your pads for better assembly quality.
Traditional Testing
  • Test fixture drill programs (NRE).
  • Test fixture programs (NRE).
  • Test fixture plates (Tooling), which can be
    dedicated or temporary.
Assembly — NRE Fees Waived
  • Pick and Place programs (NRE).
  • Stencils, typically stainless steel (tooling).
  • Dedicated fixturing for reflow (tooling).
  • Pick and Place programs (NRE).
  • Stencils, typically stainless steel (tooling).
  • Dedicated fixturing for reflow (tooling).

Quote and order your circuit boards online with our Turnkey PRO tools in just a few minutes.

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