Tag Archives: pcb assembly

Protecting Your PCBs with Professional Conformal Coating Services

As electronic devices become smaller, more complex, and more widely used across harsh environments, protecting the internal circuitry becomes essential. Conformal coating is one of the most effective ways to safeguard printed circuit boards from moisture, corrosion, dust, vibration, and chemical exposure. At Board Assembly, our conformal coating services provide long-lasting environmental protection for PCBs used in industrial, medical, commercial, and aerospace applications.

Conformal coating is applied as a thin polymer layer—usually acrylic, silicone, epoxy, or polyurethane—designed to “conform” to the PCB’s shape and provide a protective barrier. Even a microns-thin coating can significantly extend the life of electronics, making it ideal for equipment exposed to fluctuating temperatures, humidity, chemicals, or outdoor environments.

conformal coating pcbOur process begins with thorough PCB cleaning, ensuring no contaminants interfere with adhesion. Depending on the project, we apply coatings using automated selective coating systems, brushing, spraying, or dipping. Complex assemblies with connectors, switches, or areas requiring masking are handled precisely, preventing material from covering critical contact points.

Different coating materials offer unique benefits. Acrylic coatings provide excellent moisture resistance and are easily repairable. Silicone coatings offer high-temperature stability and flexibility, making them ideal for automotive and aerospace electronics. Polyurethane coatings offer strong chemical and abrasion resistance. Epoxy coatings provide rigid, highly durable protection for severe industrial environments.

After application, boards are cured under controlled conditions. Our team verifies coating thickness, coverage, UV traceability, and masking accuracy to ensure full compliance with IPC-CC-830 standards. For assemblies requiring additional protection, conformal coating can be paired with potting and encapsulation services for deeper environmental sealing.

Conformal coating is especially valuable for industries such as renewable energy, automotive, marine, and industrial automation, where electronics face constant stress. By protecting circuits from corrosion and premature failure, companies reduce maintenance costs, extend equipment lifespan, and increase product reliability.

Learn more about our conformal coating services:
https://boardassembly.com/conformal-coating-service/

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smt technology chip

High-Precision SMT Assembly Services for Reliable Electronics Manufacturing

Surface Mount Technology (SMT) has become the backbone of modern electronics manufacturing, enabling compact designs, higher component density, and superior electrical performance. At Board Assembly, we provide advanced SMT assembly services designed for prototype development, small-batch runs, and full-scale production. Our expertise, state-of-the-art equipment, and commitment to quality ensure your printed circuit boards meet the highest industry standards.

SMT assembly involves placing miniature components directly onto the PCB surface without the need for drilled holes. This allows for faster manufacturing, reduced board size, and the ability to integrate complex circuitry into smaller devices. At Board Assembly, our automated pick-and-place SMT machines provide exceptional accuracy, ensuring precise positioning of even the smallest components such as micro-BGAs, 01005 packages, and high-pin-count ICs.

For every project, we begin with a thorough design and documentation review to ensure manufacturability. Our engineering team evaluates your Gerber files, BOM, and assembly drawings to verify compatibility with our SMT processes. This helps prevent redesign costs, minimize delays, and ensure seamless transition from prototype to production.

electronic circuit board smtOnce the assembly begins, solder paste is applied using tightly controlled stencil printing methods. This ensures proper solder volume, which is critical for component adhesion and long-term performance. Our automated reflow ovens use multi-zone temperature profiling to ensure consistent solder joints across every PCB. Whether your project requires leaded or RoHS-compliant lead-free soldering, Board Assembly adheres to strict temperature controls that guarantee reliability.

Quality assurance is a core part of our SMT assembly workflow. Every PCB undergoes AOI inspection, verifying solder joints, polarity, bridging, component alignment, and placement accuracy. For boards with hidden joints like BGAs, we perform X-ray inspection to evaluate internal connections. These extra steps ensure long-term durability and minimize field failure risks.

Whether you are developing medical devices, IoT solutions, consumer products, industrial equipment, or aerospace electronics, our SMT assembly capabilities support a wide range of applications. Combined with our additional services—such as conformal coating, box build assembly, and potting & encapsulation—we offer complete turnkey solutions to support your entire production lifecycle.

Learn more about our SMT capabilities at:
https://boardassembly.com/smt-assembly/

pcb-prototype

Make 2026 the Year You Launch Your Next Big Invention: How Yun Industrial Supports New Product Introduction

Have you been sitting on an invention idea, waiting for the perfect moment to turn it into a real product? With 2026 right around the corner, now is the ideal time to take action. Whether you’re an entrepreneur, inventor, engineer, or startup founder, this can be the year you bring your idea out of your head and into the marketplace. And the best part? You don’t have to do it alone.

pcb-fabrication-and-assembly-in-usaThe journey from concept to finished product begins with one of the most crucial stages in development: New Product Introduction (NPI). NPI is where your idea becomes a structured plan, your design becomes tangible, and your vision starts taking shape. It covers everything from planning and engineering to prototyping and testing—steps that ultimately determine your product’s success.

At Yun Industrial / ACME PCB Assembly, we specialize in making this stage efficient and achievable. With over 30+ years of experience in Electronic Manufacturing Services (EMS), our team has supported countless innovators by prototyping and assembling the printed circuit boards (PCBs) that make their inventions function.

From Concept to Prototype: Complete Support for Your PCB Needs

Worried that you don’t have a finalized PCB design or detailed schematics yet? That’s completely normal—and exactly where Yun Industrial’s engineering expertise becomes invaluable.

We guide you through every step of early development, including:

  • Initial planning and feasibility review

  • PCB design assistance and layout optimization

  • Component sourcing from trusted suppliers

  • Prototype fabrication

  • Testing, debugging, and rework when needed

If your invention includes mechanical parts, housings, molded components, or metal structures, we can connect you with additional vendors through our extensive network. This ensures you’re supported far beyond the PCB—giving you a complete path from idea to physical prototype.

With a working prototype in hand, you’ll be well-prepared to:

  • Present to investors

  • Conduct functional testing

  • Gather user feedback

  • Begin small-batch or large-scale production

Full-Service PCB Assembly for Every Stage of Development

Our capabilities go far beyond basic assembly. Yun Industrial / ACME PCB offers a comprehensive suite of services, including:

  • Prototype PCB Assembly

  • Turnkey PCB Assembly

  • SMT (Surface Mount Technology)

  • Thru-Hole Assembly

  • BGA Assembly & Rework

  • Lead-Free Assembly

  • Box Builds / Electromechanical Assemblies

We also support add-on manufacturing processes such as injection molding, metal work, and finishing services, making us a one-stop partner for your invention journey.

Make 2026 Your Year of Innovation

 

Too many great ideas never make it past the brainstorming stage. Let 2026 be the year you take the next step toward launching your invention. With the right engineering and manufacturing partner, your idea can become a working prototype—and eventually, a successful product.

Contact Yun Industrial / ACME PCB Assembly today to start prototyping the PCBs your innovation needs and make 2026 the year your product becomes reality.

Printed Circuit Board Fabrication

Printed Circuit Board Manufacturing vs. PCB Assembly: Understanding the Difference

There Are Differences Between Printed Circuit Board Manufacturing and Printed Circuit Board Assembly, But You Might Be Asking What Are They?

In the world of electronics, the terms Printed Circuit Board (PCB) Manufacturing and PCB Assembly are often used interchangeably—but they actually refer to two distinct processes. Understanding the difference is essential when choosing the right partner for your electronic product development.

At Yun Industrial / ACME PCB Assembly, we specialize in both PCB manufacturing and assembly services, ensuring customers receive complete, end-to-end solutions with unmatched quality and precision.

What Is PCB Manufacturing?

PCB manufacturing is the process of creating the physical printed circuit board from scratch. This involves several intricate steps, including:

  • Designing the board layout using CAD software

  • Creating a PCB prototype to test design accuracy

  • Layering copper and insulating materials to form conductive paths

  • Etching, drilling, and plating to create traces and vias

  • Applying solder masks and silkscreens for protection and labeling

Essentially, PCB manufacturing is about producing the bare board—the foundation that will later hold the electronic components. This stage requires high-precision machinery and engineering expertise to ensure the final board meets performance, safety, and durability standards.

What Is PCB Assembly?

Once the bare board is manufactured, the next step is PCB assembly (PCBA). This is where the circuit board comes to life. The process involves soldering electronic components—such as resistors, capacitors, IC chips, and connectors—onto the PCB according to the design specifications.

PCB assembly can use Surface Mount Technology (SMT), Through-Hole Technology (THT), or a combination of both, depending on the application. This stage requires precise placement, temperature control, and soldering quality to ensure reliable electrical connections and functionality.

ACME PCB Assembly: Your One-Stop PCB Partner

At Yun Industrial ACME PCB Assembly, we provide both manufacturing and assembly services, eliminating the need to work with multiple vendors. As an ISO 9001:2015 certified Electronics Manufacturing Service (EMS) provider and IPC A-610 certified trainer, we uphold the highest industry standards for quality and reliability.

Every PCB we produce meets the strict guidelines of IPC 600, ensuring consistency, durability, and peak performance. Whether you need a prototype or large-scale production, ACME delivers the best value, competitive pricing, and on-time delivery—every time.

Contact us today to learn more about how ACME PCB Assembly can bring your next project from concept to completion.

Contact us today to learn more.

Declaration of Metal Conflict-Free Metal

At Yun Industrial Co., Ltd. dba: ACME PCB Assembly, we are fully committed to ethical sourcing and responsible business practices throughout our entire supply chain. We proudly declare that all metals used in our production processes are Conflict-Free, ensuring that none of our materials contribute to human rights violations or illegal trade activities.

Our Commitment to Responsible Sourcing

ACME PCB Assembly takes a proactive approach to ensure that metals such as Gold (Au), Tungsten (W), Tantalum (Ta), Cobalt (Co), and Tin (Sn) used in our electronic assemblies are not sourced from mines or suppliers involved in conflicts within the Democratic Republic of the Congo (DRC) or neighboring regions. We conduct continuous audits, supplier verifications, and compliance assessments to ensure that all materials are obtained through legitimate and ethical trade channels.

Our team works closely with suppliers who adhere to the guidelines established by the U.S. Dodd-Frank Wall Street Reform and Consumer Protection Act (Section 1502) and the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas.

Verified Conflict-Free Supply Chain

As a U.S.-registered company, ACME recognizes that trade routes originating directly from the DRC or transiting through Rwanda, Burundi, Uganda, Tanzania, and Kenya are classified by the United Nations Security Council as “non–conflict-free.” To maintain transparency and accountability, we ensure that none of our metal sources are connected to these regions or any non-governmental military groups.

We hereby confirm that all metals used in ACME PCB Assembly products are Democratic Republic of Congo Conflict-Free.

Quality, Integrity, and Customer Partnership

Our commitment to conflict-free sourcing reflects our broader mission—to be a trusted partner to our clients by consistently providing superior quality products, competitive pricing, and on-time delivery. As a full-service contract electronics manufacturer, we offer both Surface Mount (SMT) and Thru-Hole (PTH) assembly capabilities, supported by state-of-the-art equipment and a team dedicated to ethical, sustainable production.

By choosing ACME PCB Assembly, customers can have confidence that every board we produce meets the highest standards of quality and integrity—both technically and ethically.