Your Trusted US-Based rigid flex pcb manufacturer - Chino
Looking for a trusted rigid PCB manufacturer or a flex-rigid PCB assembly partner that ensures precision, fast turnaround, and superior performance? At Sierra Assembly Technology, we’ve been helping engineers and decision-makers like you bring complex electronic designs to life right here in the USA. With 30+ years of experience, AS9100 Rev-D & ISO 9001-2015 certified processes, and state-of-the-art manufacturing, we make sure your PCBs meet the highest standards without compromising speed or cost. Whether you need rigid flex PCB manufacturing, quick turn flex PCB prototypes, or full-scale production runs, our team is ready to deliver solutions tailored to your specifications.
Benefits of Choosing Sierra Assembly
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Simplified Assembly - Reduce connections and solder joints, improving reliability.
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Space & Weight Efficiency - Flexible sections allow compact designs for modern electronics.
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Cost Savings - Avoid costly redesigns and assembly errors with prototype validation.
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Durability & Reliability - Flex layers absorb mechanical stress for longer life.
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Custom Design Support - Our engineering team works with you to optimize performance and manufacturability.
Why Work with Sierra Assembly?
We know that time, reliability, and precision are critical in electronics manufacturing. That’s why we focus on providing services that help you succeed:
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Made in the USA: Every PCB is fabricated and assembled domestically, ensuring consistent quality and fast shipping.
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Full-Service Capabilities: From rigid PCBs to flex PCB and rigid-flex designs, we handle it all, including prototyping, assembly, testing, and repair.
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Certified and Trusted: Our operations follow AS9100 Rev-D and ISO 9001-2015 standards. Conformal coating and potting comply with IPC-CC-830B standards, and all assemblies are RoHS compliant.
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Custom Solutions: Whether you need single prototypes or large-volume production, we tailor our solutions to your project’s requirements.
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Quick Turn Expertise: Need fast-turn flex PCB assemblies? We provide accelerated production options without sacrificing quality.
Flex & Rigid-Flex PCB Manufacturer Capabilities
We simplify complex electronics by offering a comprehensive range of services that make your project easier from design to delivery.
PCB Assembly Services Include:
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Rigid PCB Manufacturing: High-quality boards with single, double, or multi-layer configurations.
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Flex PCB & Rigid-Flex PCB Manufacturer Services: Lightweight, bendable, and durable circuits for space-constrained or dynamic applications.
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Prototyping & NPI (New Product Introduction): Validate your designs early to prevent errors and reduce overall costs.
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Surface Mount (SMT), Thru-Hole, and Mixed Technology: Full flexibility for your assembly needs.
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BGA Reworking, Conformal Coating, IC Programming: Precision services for high-reliability applications.
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X-Ray Inspection, Functional Testing: Ensure every assembly works perfectly.
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Cable & Wire Harness Assembly, Box Build Assembly: Complete end-to-end solutions.
Our Expertise in Rigid-Flex PCB Assembly
We offer rigid-flex PCB manufacturing, plus advanced services to support your complex designs:
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Feature
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Capability
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Layers
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1–12 for flex, up to 26 for rigid-flex
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Board Thickness
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0.1mm – 6mm
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Minimum Line/Space
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2/2 mil
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Minimum Hole
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0.004"
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Surface Finishes
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ENIG, HASL, Immersion Silver, Immersion Tin
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Bend Radius
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Single: 3–6x board thickness, multi-layer: 10–15x
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Turn Times
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Quick-turn: 1–5 days, Standard: 10 days
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Industries We Serve
Your PCB project deserves precision. That’s why we work with industries where failure isn’t an option:
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Aerospace & Defense: Rigid-flex PCBs for high-reliability applications.
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Medical Devices: Custom flex and rigid-flex circuits for compact and critical equipment.
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Automotive & Telematics: Durable, high-performance PCBs for advanced vehicles.
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Consumer Electronics & IoT: Miniaturized, high-density boards for wearables, smart devices, and industrial automation.
Quick Turn Flex PCB Solutions
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Prototype Flex PCB: Validate designs before full-scale production.
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Quick Turn Rigid-Flex PCB: 48–72-hour delivery options for urgent projects.
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Custom Specifications Supported: Unusual layer counts, bend radii, or complex HDI designs are no problem.
Why Sierra Assembly Is Your Go-To PCB Manufacturer
We combine experience, advanced US-based manufacturing, and a customer-first approach:
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Over 30 Years of Expertise: Delivering reliable PCB assemblies to engineers and OEMs.
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State-of-the-Art Facility: Automated SMT lines, high-precision assembly, and testing equipment.
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Flexible & Scalable Production: From rigid flex PCB prototypes to full production.
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Dedicated Project Managers: You have a single point of contact from design to delivery.
When you choose Sierra Assembly, you get a partner, not just a manufacturer. We work with you to ensure your PCBs are designed, fabricated, and assembled to perform exactly as intended. Let’s build your next PCB together. Request a quote or call 909-606-7700 to speak with our experts today.
Frequently Asked Questions
1. Can you handle rigid flex PCB manufacturing for complex designs?
Ans: Yes! Our team specializes in rigid flex PCBs, combining rigid and flexible layers to optimize space, durability, and performance for aerospace, medical, automotive, and consumer electronics.
1. What is the difference between a flex PCB and a rigid flex PCB?
Ans: A flex PCB is fully bendable and ideal for compact spaces. A rigid flex PCB combines rigid and flexible sections, giving strength where needed while allowing bends for dynamic applications.
3. Do you offer quick-turn flex PCB services for prototyping?
Ans: Absolutely. We provide fast-turn flex PCB production with 1–5-day options for prototypes, so you can validate designs and accelerate your product development without delays.
4. Are rigid flex PCBs suitable for high-reliability applications?
Ans: Absolutely. They are designed to handle mechanical stress, vibration, and high-density circuits, making them ideal for aerospace, medical, automotive, and industrial electronics.
5. What capabilities should I expect from a rigid flex PCB manufacturer?
Ans: Top manufacturers offer multilayer rigid-flex designs, precise bend radii, quick-turn prototypes, full prototyping & production services, and RoHS compliance.
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