Special Processes: Conformal Coating, Potting & Programming

Precision EMS Manufacturing Beyond Basic Assembly

Standard circuit boards often fail in harsh industrial or outdoor environments. At OminiPCBA, our specialized post-assembly services transform standard boards into ruggedized hardware engineered for the most demanding real-world applications.

When moisture, corrosive chemicals, or high vibration threaten your device, long-term reliability is non-negotiable. Our integrated turnkey EMS supports every stage of production to ensure consistent field performance. For OEM procurement and design engineers, we eliminate the risk of environmental failure. We prioritize both speed and protection, ensuring your electronics maintain operational stability under any condition.

Our facility utilizes automated systems for conformal coating and precision potting and encapsulation, protecting sensitive components without manual handling risks. We provide high-speed IC programming as part of a synchronized workflow. Final functional testing (FCT) serves as the ultimate gatekeeper, rejecting any unit that fails under stress. Every PCBA exits our facility only after passing every rigorous quality checkpoint in our production flow.

Our Core Special Processes

OminiPCBA provides specialized turnkey PCBA services, featuring precision conformal coating, rugged potting and encapsulation, and secure IC programming for high-reliability EMS manufacturing.

Conformal Coating

Selective automated spray or dip coating for moisture and dust protection. Essential for automotive and outdoor electronics.

✓ Acrylic, Silicone, and Urethane options
✓ Selective automated dispensing
✓ UV-traceable inspection
✓ IPC-CC-830 & MIL-I-46058C standards

Potting & Encapsulation

Complete structural protection for extreme shock, vibration, and thermal cycling. Our potting solutions ensure long-term stability.

✓ Epoxy and Polyurethane resins
✓ Vacuum degassed dispensing
✓ Dual-component mixing systems
✓ Full environmental sealing

IC Programming

Secure and scalable firmware deployment for microcontrollers, FPGAs, and memory chips at the PCBA level.

✓ High-speed automated programming
✓ JTAG and ISP support
✓ Custom checksum verification
✓ Secure key injection (HSM integration)

Technical Specifications & Capabilities

Protecting sensitive electronic components from moisture, salt spray, and chemicals is critical. Our automated conformal coating process applies precise layers—ranging from 0.025mm to 0.125mm—adhering to IPC-CC-830 and MIL-I-46058C standards. UV inspection confirms uniform coverage, while vacuum degassed potting ensures bubble-free encapsulation for full shielding. All compounds meet UL 94 V-0 safety benchmarks, providing superior insulation and impact resistance.

OminiPCBA provides integrated IC programming and serialization using SWD, JTAG, I2C, and SPI protocols. We support both pre-programming and In-Circuit Serial Programming (ICSP) after assembly. Every unit undergoes rigorous checksum validation and firmware verification. We assign unique serial numbers to each PCBA for total traceability, ensuring no two units share an identity. Software versions are cross-checked a final time before shipment to eliminate configuration errors.

Our quality management system is built on IPC-A-610 Class 2 and 3 standards for high-reliability applications. We utilize a multi-stage inspection strategy, combining 3D AOI for surface verification with 3D AXI (X-ray) to inspect hidden joints under BGA and QFN components. This dual-layer approach identifies latent defects within multilayer stackups, ensuring long-term durability for industrial and automotive electronics where field failure is not an option.

Industry-Specific Applications

Rugged hardware requires superior engineering—standard builds simply fail under extreme stress. OminiPCBA specializes in ruggedized electronics, strengthening circuit boards to withstand thermal cycling, mechanical shock, and moisture where others falter.

Whether facing moisture, salt spray, or rapid temperature fluctuations, our conformal coating and encapsulation services provide an impenetrable barrier. Utilizing advanced materials and automated application, we protect your PCBA in mission-critical environments. From electric vehicles and industrial robotics to aerospace systems, we ensure signal integrity remains sharp and hardware remains resilient. High reliability is engineered into the process, not left to chance.

Zero-defect manufacturing starts before the first test cycle. We integrate 3D AOI and AXI (X-ray) at every production phase to intercept microscopic anomalies under pressure. For high-stakes applications like EV battery management systems or maritime electronics, we apply exacting standards to every layer. Quality is driven by systematic consistency—nothing is overlooked. Each unit performs as intended because our technical scrutiny is relentless from start to finish.

Medical Devices

ISO 13485 compliant assembly for diagnostic, monitoring, and therapeutic devices. Traceability down to the component level.

Automotive

Ruggedized electronics for EV controls, infotainment, and ADAS systems. Built to withstand vibration and temperature extremes.

Industrial IoT

Reliable connectivity modules and sensor arrays for smart factories and automation. High-volume, cost-effective production.

Energy & Power

High-power PCB assembly for inverters, BMS, and renewable energy infrastructure. Handling heavy copper and thermal management.

Telecom

Telecom infrastructure relies on signal integrity. High-frequency PCBAs support 5G networks and networking hardware through precision engineering and stability.

Robotics

Precision-engineered for motion. Specialized robotics PCB assembly optimizes motor control and sensor density, ensuring stability for complex automated hardware.

The Omini PCBA Advantage

Quality is not just a department at Omini; it's our foundational engineering discipline.

Quality Systems & Certifications

ISO 9001:2015 certified facility following IPC-A-610 Class 3 workmanship for high-reliability electronics.

Integrated EMS Services

Eliminate logistical delays by combining PCB assembly, coating, and programming under one roof.

Automated Precision

We utilize the latest in robotics for selective coating and potting to ensure 100% repeatability across batches.

Frequently Asked Questions

1.Why should I use Conformal Coating instead of Potting?

Conformal coating is ideal when weight and serviceability are important, providing protection against moisture and dust. Potting is superior for extreme vibration, shock, and total environmental exclusion (hermetic sealing).

2.Can Omini PCBA handle high-volume IC programming?

Yes. Our facility features high-speed automated gang programmers and off-line programming stations capable of processing thousands of units per day with 100% verification.

3.What standards do your special processes meet?

We strictly adhere to IPC-A-610 (Acceptability of Electronics), IPC-CC-830 (Conformal Coating), and MIL-I-46058C military standards where applicable.

4.Do you offer selective coating to keep connectors clean?

Absolutely. Our automated selective coating systems allow us to apply protection precisely where needed while keeping keep-out zones like connectors and switches completely clean without masking.