Printed Circuit Board (PCB) Assembly

Our Emerald EMS companies are proud of their decades of experience manufacturing innovative, mid-volume, high-mix electronic printed circuit board assemblies, offering high-technology manufacturing facilities in four U.S. locationsBoston’s high-tech corridor, Upper Midwest, Silicon Valley and Southern California—as well as our high-capacity, lower-cost option located in Shenzhen, China.

Emerald EMS Facilities for Printed Circuit Board (PCB) Assembly

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Each Emerald customer will be assigned an experienced design assistance and engineering team to work with you to:

Develop a manufacturing and assembly plan for your product

Identify the Emerald facilities that best meet your requirements

Be the partner that will support your program from seed to table

Our collaborative model gives you an in-house voice to ensure adherence to quality requirements, prompt communications and status updates.

Challenging PCB Assembly? We can help!

Equipped with the latest manufacturing technology available on the market, Emerald is capable of the most challenging PCB assemblies.

PCB Manufacturing


Operating on lean manufacturing principles, Emerald determines the ideal process flow to produce your unique, high-reliability end-product—on time, within budget and in accordance with the highest quality assurance standards. Whether that means PCB x-ray inspection for tight BGA placements, or selective soldering of components on a customized pallet, your product will receive the specific manufacturing plan that it deserves.

Whether your PCB assembly is a simple, 4-layer board with only SMT components and Class 2 requirements; or a Class 3, complex 20-layer board with mixed-placement technology and specific thermal requirements, Emerald is the Electronics Manufacturing Service provider to assemble it for you.

Printed Circuit Board

Practice Areas

PCB Assembly

Emerald utilizes the Valor Software Suite for PCB Assembly, offering the electronics manufacturing services industry’s most comprehensive Design for Manufacturability and Design for Testability tools.

With a skilled team of Program Managers, Procurement experts, Engineers, Technicians, operators and assemblers on your production team, our NPI facility, located in Boston’s high-tech corridor, has the capability of turning products in 1 to 5 days as well as accommodating walk-ins for those critical repairs and rework that just can’t wait.

Emerald specializes in producing highly technical and highly engineered printed circuit board assemblies and Electro-Mechanical Box Build projects to the final pack-out level. Working with our experienced customer success team, Emerald EMS supports box build and systems test capabilities at all Emerald locations.

 Emerald’s Mechanical Assembly Department has a wide range of experience in customizing Box Build assemblies according to your specific project requirements, providing detailed and secure work instructions to ensure that we meet your quality standards every time.

Emerald’s Box Build capabilities range from simple projects requiring the placement of a PCBA inside a plastic box to technically complex products requiring multiple cable arrangements, specific torque requirements, and metal enclosures. Operating from lean workstations organized by product type, our technicians are equipped with the appropriate tools and resources to assemble the most challenging product configurations.

Our dedicated New Product Introduction (NPI) facility in Salem, New Hampshire, offers our customers a wide array of added-value services, including walk-in and express services for those last-minute modifications and needed rework. We also support an array of in- and out-of-warranty rework and repair services at all Emerald facilities.

Emerald’s Surface Mount Technology (SMT) Team is equipped with the most advanced manufacturing tools available.

Emerald’s Surface Mount Technology Team will react quickly to changing customer requirements while still delivering an exceptional quality product. Each line shares the same process flow, equipment and programming software, giving us ultimate flexibility when scheduling your product’s assembly.

Emerald EMS offers our customers the option of Through-Hole Technology (THT) for PCB Assembly manufacturing, an alternative mounting scheme for electronic components that uses pins inserted into holes and drilled in printed boards and soldered to pads on the opposite side.

 Through-hole assembly produces strong mechanical bonds compared to Surface Mount Technology (SMT) and can be more costly due to additional drilling required. Through-hole technology is primarily used for bulkier components that require additional mounting strength and durability.

 Our New Product Introduction (NPI) operation also uses THT technology in our Prototyping and Rapid Prototyping projects for ease of handling, insertion and soldering.

Our expert customer focus team will work with you to determine the optimal assembly methods to meet your product specifications and budget constraints.

Emerald EMS offers mixed technology PCB assembly, combining the properties and advantages of surface mount technology (SMT) and through-hole technology (THT) to optimize product quality and cost-efficiency.

Using mixed technology PCB assembly, Emerald has the capability to manufacture single-sided, double-sided or multi-layer circuit boards.




ISO 9001:2015 & ISO 13485:2016

Emerald EMS facilities are all ISO 9001:2015 and ISO 13485:2016 certified. These certifications mean that our facilities are fully qualified when it comes to consistently meeting customer expectations, meeting or exceeding both customer and regulatory requirements and delivering the best when it comes to customer satisfaction.

AS9100, TS 16949, ITAR, NIST 800-171, NADCAP

Other certifications or registrations at various Emerald facilities are AS9100, TS 16949, ITAR, NIST 800-171 and NADCAP.

International Electrotechnical Commission Quality Assessment System (IECQ)

Our facilities are also certified by the International Electrotechnical Commission Quality Assessment System (IECQ), a worldwide quality-assurance system designed to cover the supply of electronic components and associated materials, assemblies and processes.

You can be assured that Emerald EMS is fully committed to maintaining the highest standards when it comes to customer service and component and process quality.

ISO13485:2016 – Medical PCB

Certified ISO13485:2016 specifies a comprehensive and demanding quality management system for the manufacture of medical devices, guaranteeing that we meet the necessary regulatory requirements for medical PCB assembly.

AS9100D & IS09001:2015 — Aerospace Industry

Certified AS9100D and IS09001:2015 quality management system, meeting the rigorous risk management and production standards of the aerospace industry.


Enforced by the Department of State, ITAR is a set of regulations controlling the export and import of defense-related materials. It restricts access to information for the design and building of sensitive military and intelligence technologies. We regularly assemble products with ITAR requirements.