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PCB Cost Optimization
We can review an existing product or design and propose methods for cost reduction. In many cases, layer reduction can be achieved by using smaller geometries for conductors and vias and the use of laser-drilled microvias.
Start Your Cost Optimization QuoteFACTORS THAT AFFECT THE COST OF PCB FABRICATION
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Material selection
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Board size
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Trace and space
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Processes
A few factors can increase the cost of PCB manufacturing. Our design engineering team will take a closer look at your project and identify the areas of improvement.
MATERIAL SELECTION
We review the selected PCB materials and suggest lower-cost options based on the board’s functionality and application.
- For frequencies less than 1 GHz, FR4 is recommended.
- For frequencies from 1 to 5 GHz, materials such as I-speed are suggested.
- For RF signals, special RF materials such as the Rogers 3000 series are suggested.
BOARD SIZE
We can reduce the size of your board by optimizing your layout.
- Using smaller component sizes could make you gain real estate on your board.
- Use SMD components instead of through-hole components. SMD components only require one layer whereas through holes occupy all the layers.
- Use microvias, blind and buried vias instead of through-hole vias to save space on your board.
TRACE AND SPACE
Another factor that drives up the manufacturing cost is the use of thinner traces and spaces. Below 4 mils, our production team will have to closely monitor your board fabrication, which will result in a more expensive PCB.
From a cost optimization standpoint, your traces and spaces should be greater than 4.25 mils.
PROCESSES
Manufacturing cost can be decreased by using lesser processing steps. Often, this means reducing the number of layers and laminations.
- Avoid using stacked vias as they require more steps (as we need to fill them with resin and cover them with copper) than staggered vias, thus increasing the fab cost.
- Prefer resin-filled vias in via-in-pads over conductive-filled vias as conductive-filled vias require electrolysis for filling.
WHAT ABOUT COMPONENTS?
When it comes to component cost reduction, we must analyze the types of components originally selected. We see on a regular basis customers going for higher-precision components, which are costlier, when cheaper alternatives are available.
- Don’t choose pricey mil-spec components if your application does not require military-grade specifications.
- Redundant components could also be identified. For instance, we often see designs with two resistances performing the same functions, such as I2C communication, you may have multiple pull up resistance on the SDA and SCLK signals. The extra resistances could be removed.
THE
PLUS
Our design engineers are experts in reducing our customers' PCB fab spend. They follow a set of best practices that only a manufacturer knows. Plus, they work closely with our manufacturing and assembly teams to make sure there are no unnecessary costs embedded in your project.
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WHY SIERRA
- Since we have considerable experience in dealing with PCB materials, fabrication and assembly processes, as well as components, we know which areas of your design can be improved to drive the price down. Plus, due to the close interaction between our layout and manufacturing teams, we can ensure a quality board free of rework costs.
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
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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