Author Archives: Erin

rework your pcb

Reworking Your Defective PCBs?

Did You Know That We Can Also Rework Your Defective PCBs?

When you put in a large order for printed circuit boards from a PCB assembly service provider, you may find that a few circuit boards are defective in each bunch. Rather than write these circuit boards off as a loss (and lose your investment), you may be able to give them new life.

At ACME PCB Assembly, we may be able to re-work and repair some defective printed circuit boards. Often, this requires de-soldering and re-soldering components. This is manual work that must be performed by a trained technician. Fortunately, we have highly qualified staff members who can perform these repairs for you. This way, you don’t have to write off so many PCBs and can re-coup at least some of your costs.

PCB repair and rework services are an essential a process as manufacturing. Ensuring that any design flaw or damaged PCB component is repaired immediately will help maintain the PCB’s performance. In addition to these services, we conduct functional tests on your PCBs after the repair work is completed. This is performed to ensure that the device is running as per application and industry requirements.

We closely match new incoming inquiries to board house equipment and capabilities, ensuring you receive only those inquiries that you are interested in Acme Circuit board assembly provide PCB fabrication service in the development and manufacturing of quality single, double sided and Multi-Layers printed circuit boards for the computer, medical, transportation, communication, aircraft, aerospace and related industries.

At ACME PCB Assembly, we take full responsibility for your printed circuit board order. This means we that we use only ACME PCB Assembly certified suppliers as our offshore partners.

Want to see what we can do? Contact us today to learn more about our PCB repair and modification services.

Wire Harness

ACME PCB Assembly Wire and Cable Harness Services

It is important to understand that a wire harness is different than a cable harness.  A wire is a single conductor, while cables are two or more wires that are insulated being wrapped in a larger jacket. These two technologies demand their own set of unique tools, fixtures, and machinery to help reduce production costs. Knowing exactly what type of product being used is crucial to perfectly create your designs.

Wire harnesses generally do not need much to work with and is generally an inexpensive and cost-efficient way for many people to solve their electrical needs. With a single machine, one can increase their production capabilities because of the relative simplicity of wires in general.

A wire harness is a method that incorporates several point-to-point cable assemblies together into one conclusive assembly.  They are generally held together using cable ties or some form of protective sleeve used to protect the wires or cables from environmental conditions like moisture, heat or friction, and to organize the different breakouts for easy routing through a system or box build.

What Can Wire Harnesses be Used For?

Though you might confuse a wire harness for a cable assembly, there is one main difference and that is a wire harnesses usually contains several ends or breakouts, running in different directions, serving multiple functions with multiple terminations on each breakout.

A custom wire harness can be used in durable goods like household appliances, in and around engines of all kinds – automobiles, buses, locomotives, trucks, and even planes.  Electronic equipment, construction machinery, industrial equipment, HVAC products all use wire harnesses as well.

Located in Carson, California, ACME PCB Assembly utilizes top of the line technology from Schleuniger to perfectly cut, strip, and process any wire or cable you need. After 27 plus years in the business, ACME PCB Assembly has the experience to be your contract manufacturer for cable & wire harness projects. As an IPC-A-610 certified assembler with a certified trainer in house, you can be rest assured the cables and wires that come out of ACME will exceed the standards.

ACME PCB Assembly offers Wire harness Services Contact Us.

Printed Circuit Board Fabrication

Protecting your PCB with Solder Mask

You might be wondering what solder mask is and why it’s important.  Solder masks are a very important part of protecting a PCB.  Solder mask, or solder resister is a thin covering that protects the PCB from oxidation.  It also prevents solder bridges from forming between solder pads that are close together. One example of other ways that solder masks can be used effectively by companies are how solder masks are traditionally green but are also available in different colors. The Different colors can be used to tell apart revisions easier.

If you have a revision made and already have one board green then the revision done using two white boards, you can tell the difference just by looking at it. The color of the solder masks has no effect on the performance of the PCB itself. However, the difference between the colors is the resolution of the board will be different. Colors like red and blue match the iconic green PCB in resolution. Black and yellow solder masks however have significantly less resolution than green and the clear solder masks have greater resolutions.

Solder Mask on Printed Circuit BoardsThere are many theories why solder masks were originally green. One of the reasons was because when the solder mask was first produced, the base resin was a brownish yellow and the hardener was a muddy brown. When you combined these two components to form the solder mask, it turned green. Another theory was because green has been proven by many scientists that the color is the most visible and noticeable to the human eye. Colors are just different wavelengths and yellow and green are the wavelengths that are most easily noticeable under normal light. Green is the easiest to see, and easy on the eyes so they won’t tire the human out. This factor helps assemblers and quality control inspectors so maybe that is why green is the iconic color that the image of a PCB has come to accept.

Contact Us Today for more information about our services.

2 BGAs or More vertical installing.

The Rise of Package on Package (PoP) in PCB Assembly

In the ever-evolving world of electronics, Package on Package (PoP) technology is emerging as a significant trend in PCB assembly, reminiscent of the introduction of BGA components in 1995. PoP is an innovative integrated circuit packaging method that vertically combines two or more memory ball grid array (BGA) packages. This approach is gaining traction due to its efficiency and design benefits.

2 BGAs or More vertical installing. ACME PCB Assembly has been at the forefront of this technology since 2009. The demand for PoP assembly has been steadily increasing, driven by its ability to reduce external pin count through package-level system design. This simplification greatly aids PCB layout engineers, making their tasks more manageable. Depending on the configuration, the total package height can be as minimal as 1.4mm, offering compact solutions for modern electronic devices.

One of the key advantages of PoP technology is its high assembly yield rate. Contrary to initial perceptions, implementing PoP is not as challenging as once thought. Many products now incorporate pure memory stacking in their designs, leveraging the benefits of this advanced packaging method. ACME PCB Assembly utilizes cutting-edge manufacturing tools, such as the FUJI assembly line, to provide customers with easy access to PoP technology.

ACME offers comprehensive manufacturing services for PoP BGA assembly, catering to medium batch production and rapid prototype runs. Whether you need a single piece or up to 20,000 units, ACME is equipped to meet your needs with precision and efficiency.

For more can benefit your projects, contact Board Assemblyinformation on how PoP technology  at 310-715-1898. Embrace the future of PCB assembly with PoP and stay ahead in the competitive electronics market.

Declaration of Metal Conflict-Free Metal

Declaration of Conflict-Free Metal

Acme PCB Assembly hereby declares that the metal used in our production line is Conflict-Free

Acme PCB Assembly had investigated and will continue to monitor our supply chain to ensure that metal such as gold(Au), Tungsten(W), Tantalum(Ta), cobalt(Co), and Tin(Sn) are not derived or sourced from mines in conflict areas of the Democratic Republic of Congo, or exported through illegal means or trade routes that are controlled by non-governmental military group, unlawful military factions.

As Yun Industrial Co., Ltd. dba: Acme PCB Assembly registered in the united States of America, the trade routes that are considered “Non Conflict Free” include direct export from Congo, as well as exports through Rwanda, Burundi, Uganda, Tanzania, and Kenya. (metal exports from these countries are deemed by U.N. Security Council as part of Democratic Republic of Congo- mined minerals.)

We hereby confirm that the metals used in our products are ” Democratic Republic of Congo Conflict-Free”

We seek to be a valued partner to our customers by continuously striving to provide superior quality products and services with on-time delivery at very competitive prices.

As a full-service contract electronics manufacturer of both surface mount (SMT) and thru-hole (PTH) assembly, to support our mission, we continually acquire state-of-the art equipment to assure that we have the best resources to meet all of your PCB assembly requirements.

Supplier Company: Yun Industrial Co., Ltd. dba: ACME PCB Assembly