PCB Assembly

PCB Assembly

PCB assembly is the procedure of connecting electronic components to the printed circuit boards using soldering. Our PCB assembly services can be available in fast delivery time. We use surface mount (SMT), through hole and mixed technology to manufacture consigned printed circuit board assembly, turnkeys, board types with metal cores, etc. as per your requirements. Our PCB assembly services range from prototypes to large production orders.

Our ultimate delivery of high-end technology solutions to our customers has made us a paramount leader in rendering unbeaten PCB assembly and manufacturing services. We cater to the tailored requirements of our clients whether their needs are a quick turnaround prototype or mass production PCB assembly with our prospered craftsmanship. By building everything from a sky-scraping count, flattering back panels to layouts including buried, blind or micro vias we provide a broad product mix to our customer base.

As a leading printed circuit board assembly manufacturer in California, USA; TechnoTronix uses advanced technology circuits to take control of the plenary process of PCB assembly services. We maintain in-house PCB assembly manufacturing services to provide complete PCB solutions and fastest delivery.

We are committed to fulfil your PCB assembly requirements with high quality standards and quick turnaround time! Our team of experts focus on minor defects that can harm the PCB. They solve it efficiently so that there are no chances of any problem in the future. The PCB manufacturing and assembly process carried out by TechnoTronix is in compliance with international quality standards by using high grade components in the assembly process.

PCB Assembly Services

We are working successfully for our customers in varied industries like aerospace, telecommunication, defense, medical, automobile and robotics. We have developed a personalized approach at every stage of the PCB assembly process.

SMT Assembly

Surface mount technology (SMT) is the most commonly used process in the industry..

BGA Assembly

If you are looking at mounting high performance devices, Ball Grid Array (BGA) assembly..

Through Hole PCB Assembly

Get end-to-end through hole PCB assembly (THA) solutions from prototypes to production..

Low Volume PCB Assembly

Low volume PCB assembly is your bespoke solution for well-defined flexibility for mounting..

High Volume PCB Assembly

Count on us for any kind of high volume PCB assembly requirements at unbeatable..

Electro Mechanical Assembly

Technotronix has an extensive years of combined experience in proffering electro mechanical..

PCB Material Management

TechnoTronix provides a turnkey approach to material management that includes..

Cable Harness / Assembly

TechnoTronix is specialized in layout and assembling of custom and complex cable and..

Mastering Mixed Assembly

Our method for rendering mastering mix assembly service commences..

Reliability & Repeatability

Our main intent is to prerequisite simplicity in our PCB manufacturing and assembly..

Production PCB Assembly

One of the in house PCB prototype marvels, TechnoTronix facilitates PCB assembly..

Overseas Assembly

Our strategic alliance and multiple vendor partnerships in the United States and overseas..

PCB Assembly Rework

The introduction of Pb-Free assembly has been challenging for first-pass assembly..

Prototype PCB Assembly

One of the in house PCB prototype marvels, TechnoTronix facilitates PCB assembly..

PCB Box Build

With over four decades of specialized experience, TechnoTronix excels in..

SMT Stencils

PCB SMT stencils got a whole new name for precision printed circuit board..

Complete Turnkey

There are many demanding deliberations based on the plan for the level of production..

Quick Turn PCB Assembly

Quick turn PCB assembly is the fastest way to go to market, if you are looking at..

Consigned PCB Assembly

Consigned PCB Assembly is a win-win solution with parts supplied by the customer and manufacturer’s expertise...

Capabilities of Printed Circuit Board Assembly

Technotronix takes care of customer's choice. We provide what you need. Here are the capabilities that we deliver:

  • Assembly types:
    • Surface mount (SMT)
    • Single & double-sided SMT/PTH
    • Mixed technology (SMT/Through-hole)
    • Large parts on both sides
  • Solder types:
    • Leaded
    • ROHS compliant
  • Volume:
    • Engineering prototype
  • Quality checking:
    • AOI checking
    • Visual inspection
    • BGA Placement- X-Ray checking
  • Times:
    • Scheduled deliveries
    • 1-2 weeks
    • 4-7 days
  • Parts Procurement:
    • Turnkey
    • Biased Turnkey
    • Kitted/ Consigned
  • Alter/Rework:
    • Ball Grid Array replacement station
    • IR rework station
  • Stencils:
    • Nano-coating
    • Laser-cut stainless steel
  • Components:
    • Passive components
    • Connectors
    • Terminals
  • Board Type:
    • Rigid
    • Metalcore
    • Flexible
    • Rigid-Flex

Benefits of PCB Assemblies

Printed Circuit Board Assembly service

Printed circuit board assemblies are the core of electronic devices as, without it electronics manufacturing is impossible. The demand for PCB assembly increases due to the following benefits:

Compact Size

Copper tracks are more used in PCB than wires, making inside connections less heavy. So, the printed circuit boards are not heavy and smaller in size.

Save Time

Conventional method takes a lot of time to join the components. On the other hand, PCB needs less time to assemble all the components. Less time-consuming.

Lower Cost

Cost is vital for the manufacturing of electronic devices. Make sure the circuit boards are properly designed and tested so that it can work properly. This is affordable at a lower cost in mass production.

Easy to repair

If any component fails to work or is damaged, it's simple to identify it. You can easily replace or repair that component.

Low Noise

There is less noise in printed circuit boards. This improves reliability in devices as heat overcomes the electrical noise.

Types of PCB Assembly

  • Single-sided PCBs – These are the simplest type of PCBs which is used in simple systems. They contain only one layer that consists of the base material. Copper is used to cover that layer. The solder mask protects the copper layer. Used in electronic toys.
  • Double-sided PCBs – These contain layers on both sides. Double sides are used to attach the metal areas. Surface mounting is more efficient than Through-hole mounted to attach more circuits.
  • Multi-layer PCBs – They have many copper layers but not less than two. Layers are like 4 layers, 6 layers, and up to 12 layers. Circuit boards are compact. These are more flexible as they provide sufficient weight and space.
  • Rigid PCBs – These bases consist of hard solid materials, and the signal paths are well arranged. They are inflexible. Mainly used in the motherboard, aerospace, etc.
  • Flexible PCBs – These bases are made up of flexible materials. They reduce complexities and circuit board weight. They require less space. The correct temperature and density are required due to the flexible nature of circuit boards. They have high cost and more guarantee.
  • Rigid-flex PCBs – The combination of Rigid PCBs and Flexible PCBs are termed as Rigid-flex PCBs. They consist of many layers of flexible circuits that are connected to the rigid boards. They are light weighted and provide more space.

PCB Assembly Process and Technology

The entire process and functions are done by several processes, as mentioned below:

THT (Through-hole technology) assembly process

In this process, holes are made into PCBs. Then, pin-through-hole components are inserted into it. These can be done by soldering.

These include the following steps:

Step 1 – Placements of components

Check the client's circuit board design documents. According to this, arrange and fix all the components.

Step 2 – Checking and rectification

After doing step 1, plug the boards and components together. You can fix issues by the soldering method in case of any inconvenience.

Step 3 – Soldering

Wave soldering is done at a high temperature to overcome the problem. It is done by moving the circuit board in the liquid solder via waving.

Through Hole Assembly

SMT (Surface-mount technology) assembly process

Using solder paste, components are placed in circuit boards. This method is termed Surface mount technology. It has small components as compared to Through-hole.

The following steps are needed in SMT:

Step 1- Printing

A solder paste printer is required to solder paste on components and boards. By using a stencil, you can find if it is done correctly or not.

Step 2 – Mounting

Component reels are required to mount each component on circuit boards in the machine. Keep this thing in mind that every part is quickly attached to the board.

Step 3 – Soldering

This is done by reflow soldering at high temperatures. Circuit boards are placed in an approx 22-foot long furnace. Be careful while melting the solder paste.

SMT PCB Assembly

Mixed Technology assembly process

Both Through-hole and Surface mount technologies are used to solve complexity.

Situations when this is used are

Single side mixed

All these procedures like Printing using solder paste, Placement of parts of surface mount devices, Reflow soldering, Placement via Through-hole technology, and Wave soldering, respectively, are mandatory to do.

Among the two sides, SMT One is THT

Procedures have to be followed like Surface mount adhesive, Placement of SMD parts, Solidification, Flipping, THT Component placement, and Wave soldering, respectively, for the best result.

Double side mixed

In this, PCBA can be processed in both ways with adhesive or without adhesive. Surface mount adhesive is the optional step. All the steps of the single side and among the two sides are used. For non-adhesive, you have to skip the step SMT adhesive step.

Download the Comprehensive Guide for Printed Circuit Board Assembly Process!
PCB Assembly


Technotronix is a USA based PCB assembly service provider specializing in a wide range of industrial and commercial PCB assembly services. Apart from this, there are several benefits of working with us as following:

40 Years of experience

We have more than 40 years of experience in delivering printed circuit board assembly services. As a leading PCB assembly service provider in the California, USA; we deliver what you want within the appropriate time.

Quality guarantee

We give you the best quality and guarantee of products and services. All PCB assemblies are gone through rigorous testing and inspection such as ICT, X-ray, functional testing, AOI and more. It allows to assure quality of PCB assemblies.

Fast turn PCB assemblies

Generally, for standard projects, our lead time is 1 to 5 days, and for complex projects, our lead time is varying from 1 to 2 weeks. We can accelerate the lead time if any of the client request us for an emergency order.


All products are available at affordable prices according to their size, labor cost, components quality, and shipping cost. We are available to help you. Customer satisfaction is our priority.

Custom PCB assembly services

We understand all the PCB assembly requirements vary across different industries. For e.g., PCBs used in computers and electronics are different from PCBs used in military and Defense. Our experts understand your industrial requirements & deliver the PCB assembly solutions based on that.

Low volume, prototype, and high-volume PCB assemblies

Whether you require low volume, prototypes, or high-volume PCB assemblies over 10,000 pieces, we work on all types of projects. We ensure quality and on-time delivery of the requirements for any volume range.


PCB assembly or PCBA is the second step or stage of PCB manufacturing in which the board components are mounted to the bare board through a soldering process. PCB Manufacturing Process couldn’t end without PCB Assembly.

Yes, we offer 24 hours quick turn PCB Assembled Solution without sacrifice quality of PCB Board.

Yes, we offer multi-layer PCB Assembly services.

Yes, we have capability to do fin Pitch (01005 size passive components and up to 1mil spacing on BGA).

Yes, we can install BGA (BGAm, MBGA, LGA).

Yes, we always inspect using X-Ray.

Yes, we offered both RoHS or leaded compliant assembly.

Yes, we offer conformal coating service. (Most of the acrylic based we do in house)

Yes, we offer functional testing with client provide test procedure.

Yes, we offer cable harness service.

Yes, we have ability to do build box and we also do programming and testing.

We offer First Article Inspection service for PCB Assembly (as required by client).

Yes, we used IPC 610 or J-STD Quality Inspections as per client requirement.

Our standard turn around for PCB Assembly is 3 week.

Yes, we can work with Blanket Order.

Yes, we can work with Kanban system.

Yes, we give partial quantity based on parts availability.

An allocated quotation cancellation fee will be charged for cancelled orders which depend on the PCB manufacturing or fabrication status at a time of cancellation. Read our terms & conditions.

We believe that privacy is most important. We don’t sell, share or rent any individual’s personal information. In all cases, we comply with our privacy policy and other appropriate confidentiality or security measures such as ITAR, etc.

PCB assembly cost differs from PCB parts type, total parts on a PCB and order quantity.

No, there is no extra cost of a solder mask that affects your overall cost.

Yes, it is completely safe as there is no involvement of the 3rd party.

Usually, we take 4-7 days, or we deliver you at the scheduled time.

Yes, we provide various testing services according to your need.

Yes, we accept multiple orders. Feel free to order.

Yes, our highly experienced team able to provide custom finish (such as OSP, ENIG, ImAg, ENIG etc) for PCB Assembly based on your requirements.
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Are you looking for PCB Assembly Services? If you need custom and quick turnaround PCB assembly for your industrial requirements, please use PCB Assembly quote request form and submit information. Alternatively, you can email us BOM and Gerber files along with information of PCB Assembly volume, type of PCB Assembly and testing requirements on sales@technotronix.us or call us on 714/630-9200 in case any other clarification is required in respect to our PCB Assembly services.


PCB Assembled in 24 hours

Best Turn around time for Prototype PCB assembly.
Kitted and Turn-Key option as per customers requirement.


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