Author Archives: Erin

Is Through-Hole Assembly Still Important to Use?

 

Before the 1960s, the through-hole assembly process for mounting components onto printed circuit boards was the only game in town. It was labor-intensive and required a lot of space, but it was the only option. That all changed with the rise of surface mount technology (SMT), which allows for components to be mounted directly onto a printed circuit board’s surface. Since SMT doesn’t require drilling holes through a PCB, its components are much smaller and can be mounted on each side of the board. The result is a denser, smaller PCB that can perform much better than a PCB using through-hole technology.

When SMT came on the scene, many engineers believed it would harken the death of through-hole PCBs. However, while SMT does reign supreme, through-hole is still with us today. In very specific circumstances, through-hole PCBs are a better choice than their SMT counterparts.

A Few Important Uses for Through-Hole PCBs

Through-hole PCBs may be bigger and clunkier than SMT PCBs, but they do offer up one important advantage. Through-hole components are attached far more securely than SMT, which gives them a much stronger connection between layers. SMT connections are strong enough for the vast majority of products that people use in their day-to-day lives, but for machines that must operate in extreme environments, through-hole is the more reliable and stable option.

For example, through-hole PCBs can be commonly found in machines in the military and aerospace industries. Oftentimes, these machines must survive extreme temperatures, forceful collisions, and rapid accelerations. Through-hole is the ideal reliable and resilient mounting option for these types of products.

Prototypes

The other area where you are most likely to find through-hole mounting is in product prototypes. Through-hole is often preferred in prototyping, because it is much easier to adjust and replace components as the prototype undergoes testing and design alterations. If you are dreaming up an exciting new product, you’ll want to reach out to a printed circuit board vendor that is adept at through-hole mounting. This will give you more flexibility as you put the prototype through its paces.

Find Your SMT and Through-Hole Vendor

No matter what your industry or product line, it is smart to look for a printed circuit board manufacturer with both SMT and through-hole experience. This will allow you more choice and more control over your final product. At ACME PCB Assembly, we offer extensive experience in both SMT assembly and through-hole assembly.

Contact Us Today!

ROHS-Compliant Assembly Services USA

How Being RoHS-Compliant PCB Assembly Services are Different from Assembly Services?

With everyone’s increasing concerns on the over usage of hazardous materials in the electronic and electrical products and their environmental impact, there have been several stricter regulations being imposed by the leading governmental organizations across the world. The RoHS compliance is one of those important regulations that is currently being imposed on the utilization of hazardous materials in the electronics and electrical products. Are you interested in knowing how this compliance works or what the benefits are?

Being Able to Understand the Materials that are Restricted Under RoHS Compliance

The RoHS compliance has restricted the use of six materials in the PCBs and electronic items. They include Mercury (Hg), Lead (Pb), Cadmium (Cd), Hexavalent Chromium (CrVI), polybrominated diphenyl ethers (PBDE), Polybrominated biphenyls (PBB), and phthalates such as BBP, DEHP, BBP, and DIBP.

The compliance also specifies the maximum levels of these restricted materials in the PCBs and other electronics items.

  1. Mercury (Hg): < 100 ppm
  2. Lead (Pb): < 1000 ppm
  3. Cadmium (Cd): < 100 ppm
  4. Polybrominated Biphenyls (PBB): < 1000 ppm
  5. Hexavalent Chromium: (Cr VI) < 1000 ppm
  6. Polybrominated Diphenyl Ethers (PBDE): < 1000 ppm
  7. Bis(2-Ethylhexyl) phthalate (DEHP): < 1000 ppm
  8. Dibutyl phthalate (DBP): < 1000 ppm
  9. Diisobutyl phthalate (DIBP): < 1000 ppm
  10. Benzyl butyl phthalate (BBP): < 1000 ppm

The Many Features of RoHS-Compliant Assembly Services

Many PCB assembly services are utilizing processes and technologies that help them manufacture RoHS-compliant PCB assemblies. The following are a few features that help distinguish these services from others.

  • Lead-free Surface Finishes:Many manufacturers are nowadays using lead-free surface finishes such as lead-free HASL, ENIG, Electroplated Nickel and Soft (Bondable), Hard Gold Immersion Tin (White Tin), and Organic Solderability Preservatives (OSP).
  • RoHS Compliant Substrate Materials:The choice of RoHS material depends on the requirement of the application. There are materials such as Isola IS410, and Polyclad 370HR that assure standard electrical performance; however, materials such as Isola FR415 and Polyclad Getek assure high electrical performance at low loss.
  • Primary and Secondary Services:It has been observed that many RoHS PCB assembly service providers specialized in primary and secondary services such as lead trimming, lead-free wave soldering, and many more.

Some Benefits of Using RoHS-Compliant PCBs

The benefits that are offered by lead-free and RoHS-compliant PCBs are various. The following are a few of them:

  • Helps Reduce Metal Poisoning:As the technology landscape is fast evolving, many customers are discarding their obsolete electronic equipment in landfills. Equipped with various hazardous materials, this equipment helped lead to severe poisoning. Although recycling is being performed, still the equipment may have hazardous substances in them. The RoHS directive has forced OEMs reduce their dependence on hazardous substances. This has helped reduce the impact of these materials on the environment, and people working with them.
  • Improved Product Safety:With RoHS compliance being adopted by many prominent electronics manufacturers in EU and the US, now users can be assured that the product they are using is lead and mercury free. As a result, the sales and popularity of the products from these manufacturers has tremendously increased.
  • Improved Thermal Properties:It is proven that lead-free PCBs have excellent thermal properties than their leaded counterparts. They can easily withstand temperatures between -45°C to 145°C. Nowadays, PCB manufacturers are using specialized halogen-free laminates that have further helped improve their thermal stability up to 300 °C.

The benefits of RoHS-compliant PCBs symbolize a green future.  It is important that you find a trusted RoHS-compliant assembly services provider such as Yun Industrial and ACME PCB Assembly. Our company follows processes that are audited regularly and certified as chemical free.

Call today to find out more about our RoHS-compliant assembly services. 

 

PCB Fabrication and Assembly

Custom PCB Assembly Solutions for Small and Large Orders

When it comes to bringing an electronic product to market, every component matters—especially the printed circuit board (PCB). At Board Assembly, we specialize in PCB assembly solutions tailored to meet the unique demands of both small and large volume orders. Whether you’re a startup developing your first prototype or an established manufacturer scaling production, having a trusted assembly partner makes all the difference.

PCB Fabrication and AssemblyFlexible PCB Assembly for Every Project Size

Not all projects are created equal. Some begin with low-volume runs for testing or proof of concept, while others require full-scale manufacturing to meet demand. We understand the need for flexibility. That’s why our facility is equipped to handle both ends of the spectrum—from a handful of boards to thousands—all while maintaining tight quality control and fast turnaround times.

Startups and small businesses benefit from our low minimum order quantities and personalized service. If you need help with your design or component sourcing, our experienced team is here to assist you at every step. For larger businesses and production-scale orders, we offer automated processes, scalable workflows, and strict adherence to IPC standards.

Quality, Consistency, and Support

We don’t just assemble circuit boards—we build reliability into your product. Our advanced equipment and trained technicians ensure each board is assembled with precision. Every order, no matter the size, is subjected to rigorous testing and inspection to meet your performance and durability expectations.

Need surface mount (SMT), through-hole, or mixed technology assembly? We’ve got you covered. Our capabilities include both leaded and RoHS-compliant assembly processes, giving you the freedom to choose what’s best for your application and market.

Your Turnkey Partner

At Board Assembly, we go beyond standard manufacturing. From prototype to production, we offer full turnkey solutions including sourcing, assembly, testing, and packaging. This helps streamline your supply chain and gets your product to market faster.

Visit Board Assembly to learn how our PCB assembly services can support your next project—big or small. Contact us today to get started with a quote or design consultation.

pcb-fabrication-and-assembly-in-usa

How to Choose the Right PCB Material for Your Application

When it comes to electronic products, the materials you choose for your printed circuit board (PCB) can make all the difference in performance, reliability, and even cost. Selecting the right PCB material isn’t just about picking what’s readily available; it’s about matching the material’s properties to your specific application. At Board Assembly, we understand the importance of PCB material selection and are here to help you navigate the options.

Why PCB Material Matters

Your PCB is the backbone of your electronic device. It carries electrical signals, manages heat, and supports all your components. The wrong material choice can lead to issues like signal loss, overheating, or even mechanical failure. That’s why understanding your project’s requirements is key to making the right choice.

Factors to Consider

  1. Thermal Performance:
    If your application generates a lot of heat—like in power electronics or LED lighting—you’ll need a PCB material with good thermal conductivity. Materials like aluminum-based PCBs or high-Tg FR-4 are excellent choices.

  2. Electrical Performance:
    For high-frequency or RF applications, you’ll need a material with low dielectric loss. PTFE-based materials are often recommended for their superior electrical properties.

  3. Mechanical Strength:
    Will your PCB be exposed to vibrations, shock, or mechanical stress? If so, choose materials with higher mechanical strength to avoid cracks and failures.

  4. Cost:
    Budget matters too. While advanced materials like Rogers or ceramic substrates offer excellent performance, they can be pricey. For many applications, standard FR-4 remains a reliable and cost-effective option.

  5. Environmental Conditions:
    Consider the environment your PCB will operate in. Will it face moisture, chemicals, or extreme temperatures? Some materials offer better resistance to harsh conditions.

Trust Board Assembly with Your PCB Needs

At Board Assembly, we guide our customers through every step of the PCB material selection process. Our team helps you find the perfect balance between performance and budget, ensuring your project is a success.

📞 Contact us today to learn more about our services and how we can help you choose the best PCB material for your application.

Processor with ball BGA pins

Ball Grid Array (BGA) Assembly Inspections

ACME PCB Assembly has provided (Ball Grid Array) BGA assembly, BGA rework, and BGA reballing service for Printed Circuit Boards since 1994. Having 20+ years experience behind us, we have extensive knowledge on how to assemble high quality (Ball Grid Array) BGAs. We have experience with everything from Micro BGAs to large size BGAs (55 mm), and ceramic BGAs to plastic BGAs.

BGA-boardsBGA assembly is a type of SMT process, which is used for Printed Circuit Boards. It allows for the customer to have more room for the PCB layout.  Ball Grid Array (BGA) packaging is a method for reducing package size and integrating a greater number of functions on a single chip module. BGA (Ball Grid Array) also replaces solder balls on the component underside for SMT mounting.

ACME PCB Assembly has a quality system for BGA assembly, the BGA will be received and inspected, and kept in a 40-degree Celsius storage with a 1% humility baking oven to make sure the BGA is good condition before assembly.  We inspect the BGA with a 3D X-ray, and make sure the void is under 25% of the total solder ball diameter. By using the X-Ray inspection process, we can eliminate the soldering problem on the board, such as solder bridging and insufficient ball melting.

We also add an additional layer inspection after the X-Ray inspection is done; using the ERSA scope to inspect the solder ball on the underside of the BGA so that we are sure the profile is correct; we assure you excellent quality during the BGA assembly process.  Some BGA assembly boards have VIA connect to the BGA pad, the best condition for that is have a VIA epoxy plug, and have the solder mask on the trace, so that solder is not wicked to the VIA and cause the solder to function insufficiently during the BGA assembly process.

By having ACME PCB Assembly do the BGA assembly prototype with or without Stencil will save you as the customer on assembly costs.

Please call us at 310-715-1898 for get more information or Assembly quotation.