We're Experienced Medical PCB Assemblers
Medical devices push design limits in every direction. They require tighter enclosures, smaller components, mixed signal integrity, and no tolerance for error. These boards power surgical tools, wearable monitors, implantable prep systems, and diagnostic analyzers, and they need to maintain stability over long duty cycles, and pass compliance testing without rework.
At Ninja Circuits, we prototype early-stage Class II and III medical devices with the same discipline as full production. Our assemblies follow IPC-A-610 Class ll and III standards We flag layout risks early, move fast when timelines are tight, and deliver boards ready for testing, validation, or regulatory review.
If your board supports life-critical decisions and operates beyond the bench, you need a partner who builds like it already matters. We’re responsive, detail-driven, and committed to getting it right the first time.
We're Experienced Medical device pcba engineers
PCBA PROTOTYPING
Prototypes are what we do every day. Our goal is to provide you with quality products that will validate your designs in as short a period of time as possible. Our staff can source all the components for your design, or provide labor only builds if you have all the components, or a combination of both. Let us know what you need.
PCB ASSEMBLY
Are you looking for a one-time build to bridge the gap between old and new products? Or perhaps support for legacy products? Ninja can provide you with fast turn options tailored to your needs that will help minimize your inventory requirements and still service your customers efficiently.
REPAIRS, UPGRADES, REPLACEMENTS
If you need assistance with a product already assembled, Ninja can help. Component upgrade or replacement, modifications, repairs, Ninja personnel have the skills and experience and equipment to help bring your existing product to the desired configuration.
SHORT-RUN PRODUCTION
Do you need to bring your product to market but your electronics manufacturer can't ramp up fast enough? Ninja can meet your short-run needs with fast turnaround of quantities to fit your demand.
Medical PCBA Applications we serve
Medical PCBs operate under a microscope, figuratively and literally. They’re built for devices that go into sterile environments, interact with the human body, or feed data into critical diagnostic systems.
We’ve assembled PCBs for wearable vitals monitors, blood analyzers, electrophysiology tools, and surgical robotics. These builds often involve fine-pitch micro BGAs, impedance-controlled traces, and isolation barriers between patient-contact and control zones. Many also require rigid-flex layouts, matched routing, and specialty coatings for cleanability or fluid exposure.
Whether you're prototyping a handheld diagnostic or updating a larger in-room system, we support fast iteration, documentation readiness, and high-reliability builds at every step. If your device touches the clinical workflow, we build it like it’s already in the field.
Testing Standards
Medical PCB assemblies are held to some of the most rigorous inspection standards in the industry. Our testing process can include:
- Visual inspection under magnification for solder joint quality, alignment, and contamination
- 3D Automated Optical Inspection (3D AOI) for dimensional accuracy and defect detection
- X-ray imaging for BGA, QFN, and fine-pitch verification
- Flying probe or custom fixture electrical testing for net validation, isolation, and shorts
- Builds aligned to IPC-A-610 Class III workmanship standards

- ITAR-ready documentation and secure material handling for sensitive programs
THE NINJA WAY
Ninja Circuits is a flexible, fast, and skilled pcb assembly manufacturer dedicated to developing the best and quickest pcb assembly prototypes in the USA. We offer exceptionally fast pcb assembly prototypes to engineers and innovators developing new products to improve and enhance our lives and the world we live in. Ninja Circuits is proud to be based in the USA, which allows Ninja Circuits to provide excellent communication, on-time delivery, quick turn PCB assembly, and responsive customer service.
Flexible
Flexibility is our strength. No two customers are alike. Ninja will tailor our services to your needs to provide you with the desired outcome for your project.
Fast
Ninja Circuits knows that the culmination of your project design is a working prototype. Waiting weeks or months for validation is not only frustrating but impedes schedules and time to market and is unacceptable. Ninja can provide you a quality product in as short amount of time possible.
SKILLED
Our personnel are trained with skills on par with anyone in the EMS industry. A poorly assembled product is a failure. Ninja delivers fast AND quality products every day and will ensure your project needs are met.
OUR certifications
Ninja Circuits is committed to providing quality to customers. Certifications, training, and experience are what we take pride in at every step of the way for every project.
WHAT OUR CUSTOMERS SAY
We appreciated the quick and creative response you provided in building this product. I was concerned about the robustness of this assembly, but you found a solution that secured the components in the box sufficiently.
INDUSTRY INSIGHTS
Contact Ninja for a quote today!
Contact Ninja for a quote today!
Medical device development doesn’t leave room for vague timelines or loose documentation. Your team needs clean builds, fast iteration, and support that understands what’s at stake. At Ninja Circuits, we work with Class II and III medical prototypes on a daily basis. We align our process to your specs, QA workflow, and submission strategy, whether you're validating a diagnostic, preparing for biocompatibility, or ramping up for a clinical pilot.
Our engineers work directly from your design files, flag issues early, and keep your project moving without back-and-forth delays. Every quote is based on your actual BOM and layout, not a guess or calculator.
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