Why PCB assembly service quotes are essential for your PCB projects?

By | Date posted: | Last updated: April 19, 2023
PCB assembly service quotes

Once you have a PCB design in place, you need a competent manufacturer who can bring your design to life at a price point that works for your project. It is important therefore that you ask for a PCB quote before the fabrication can kick off.

To get an accurate quote, however, it is important that you provide the manufacturer with the relevant information. Let us look at what a PCB assembly service quote consists of.

PCB assembly service quotes

Essentially, a PCB quote offers an accurate estimate of the cost of fabricating a board as also the timelines involved. A quote can be made available for both PCB fabrication as well as PCB Assembly.

It is necessary that you give accurate information about the project for both the price as well as the timelines to be accurate.

A PCB assembly quote, for example, will come with vital details such as:

  • Type of material
  • Number of holes
  • Number of layers
  • Board dimensions
  • Trace width
  • Finishing of copper layer
  • Space between traces, and more.

Required documents for PCB assembly quote

The accuracy of the quote depends on the availability of the following documents:

1. Bare Board Print or Fabrication Drawing

It offers information related to aspects such as:

  • Board thickness
  • Number of holes
  • Dimensions, and more.

It is also important to include details of the component numbers in this document. Along with this you also need to make available the Gerber Files.

Pro tip- Ensure that design files are made available in a format such as ODB++.

2. Bill Of Material

Bill of material is yet another crucial document that among other things carries relevant information about the components. The more detailed it is, including aspects such as description of parts, part number, reference designator & more, the smoother the entire process.

3. Assembly Print

With an Assembly Print information about the location of parts can be conveyed. It also contains special markings if there are any.

4. Approved Vendor List

An approved vendor list along with part number of the manufacturer is ideal.

Information that is often missed when requesting for a PCB assembly quotes

The following are some of the information that is often missed:

1. Stack-up details

This comprises of details of number of layers, thickness of layers as well as of the stack-up.

2. Solder mask details

These details include the type of solder mask, its finishes and more.

3. Impedance details

With impedance details not being provided; their implications are felt on several aspects of the board.

4. Cut-out

The dimensions as well as the position of the cut-out are imperative in receiving an accurate PCB assembly quote.

5. Silkscreen

Where to apply silkscreen & its color are also essential details.

6. Surface finish

The type of surface finish has a strong bearing on its cost. It is therefore imperative that it be clearly mentioned.

Factors that affect PCB assembly cost

Some of the other factors that impact PCB assembly cost include:

1. Mounting Technology Used

The use of SMT (Surface Mount) or through-hole PCB assembly technology has a bearing on the cost. Also, Surface Mount technology is faster as it uses a lot of automation.

2. Lead Time

In case your lead times are short, it has a bearing on the cost of the PCB assembly. The two clearly are inversely proportional.

3. Shipping Costs

Large PCB quantities may come with additional shipping costs.

4. Number of Layers

It typically costs more to assemble multilayer PCBs (Printed Circuit Boards). This is because the number of production steps has increased significantly.

5. Surface Finish

The choice of surface finish as already indicated has a strong implication on the cost. Some of the surface finishes come with longer shelf life and at a higher cost.

To Sum Up

While a PCB assembly quote is important for you to plan the efficiency of your project, its accuracy depends on a whole lot of factors. It is important that the details must be correctly provided so that the PCB assembly quote can be exact.

Needless to mention, however, that the quote cannot be the sole reason you go with a certain contract manufacturer. It is imperative that you ascertain the experience and quality offered so that there are no costly errors to deal with at a later stage.

To avoid such errors, you can contact Technotronix at sales@technotronix.us to get innovative PCB assembly services. With an experienced team, Technotronix provides reliable PCB services including PCB fabrication, assembly, and PCB design. Get a quick PCB assembly service quote for any kind of requirements.

What you should know about PCB design for assembly guidelines?

By | Date posted: | Last updated: November 11, 2022
PCB Design for Assembly Guidelines

The importance of designing boards that have ease of manufacturability cannot be overstated. After all both the cost as well as the time taken in manufacturing is high & hence any errors at the design phase can prove to be costly as they could lead to assembly rework.

For seamless designing, it is important that the designer understands the assembly requirement from end-to-end. Following the right design for assembly practices are therefore critical. Let us look at the reasons why DFA guidelines are very important.

What is the importance of PCB Design for Assembly Guidelines?

It is important that the PCB layout and design lends itself to ease of manufacturability. The many issues that can arise during the manufacturing process include:

  • Component availability – If the components aren’t readily available the cost of manufacturing can increase. Additionally, it will also add to the lead time that can go a long way in impacting quick time-to-market & in turn, your competitiveness.
  • Part Placement – The right placement of parts is extremely important as it can drive up costs. Issues such as how the component rotates also go a long way in impacting solderability.
  • Layout – Since the PCB has to connect to other boards or interfaces, it is important that these aspects have been considered.

If the design of the board adds to its manufacturing expense, it can render the project unviable. In fact, this aspect becomes extremely important particularly at the prototype stage as if the design isn’t optimized it will lead to issues at the mass production stage. Alternately, you will waste time going back to the drawing board & re-designing the prototype.

PCB Design Guidelines for Seamless Assembly

Some of the PCB design for assembly guidelines that are extremely important include:

  • Ensure that the components that your design incorporates are easily available. It is critical to check that end-of-life parts are not incorporated as they can waste precious assembly time as also increase your expenses.
  • It is recommended that all SMT parts are put on one side of the board as having them on both sides will add to the costs.
  • Solderability of the board gets impacted if unusually sized parts are used. Additionally, as far as possible such parts should not be juxtaposed with smaller parts.
  • Ensure that components aren’t placed too close to the board edges especially when you are dealing with small boards as these can cause issues in taking the boards out of the panels.
  • As far as possible, an orthogonal placement of parts needs to be undertaken.
  • In part placement their solderability needs to be kept in mind. There needs to be enough room for soldering fixture development.
  • It is important that test probe points be provided for testing & debugging
  • The connectors should be placed optimally. Additionally there must be enough room to plug & unplug cables during assembly.
  • Last but definitely not the least, it is imperative to work closely with your electronics contract manufacturer at the design stage itself for your PCB design to work seamlessly at the manufacturing stage.

The important role your contract manufacturer can play!

It is important that your CM is involved at the design stage to be able to review your design. That way the CM will be able to guide you about component selection. In turn, this will mean that you will not have to contend with a delay in the availability of parts. Additionally, the other advantage that will accrue is that they will be able to help you with optimal placement of components that will increase the manufacturability of the board. Done well this will have a positive repercussion on:

  • Cost of boards
  • Cycle time, and more.

In fact with the right contract manufacturer you will be able to tide over any difficulties including manufacturing boards that are highly complex. Armed with industry best practices they will be able to help with design & documentation that can ease manufacturing. Also, needless to mention that the right contract manufacturer will be able to offer you both low as well as high volumes as per your bespoke requirements.

Technotronix offers PCB manufacturing services with 40 years of expertise. We follow industry best practices to ensure we deliver cutting-edge products. Our team of experts and state-of-the-art manufacturing facility ensures that all our PCBs meet the industry standards of quality and testing.

If you have any questions or any requirements related to PCB design for assembly, please feel free to contact us via email at sales@technotronix.us or call 714/630-9200.

How does PCB Inspection play an important role in PCB assembly process?

By | Date posted: | Last updated: February 8, 2022
PCB Inspection

The printed circuit board assembly process isn’t complete until a robust inspection process is concluded. Its ability to point out hidden defects cannot be overstated. That it saves you precious time and protects you from costly errors at a later date is a given.

Here are some of the common PCB inspection processes that are often undertaken:

  • Manual PCB inspection: As the name implies, it involves manually looking at assemblies to inspect them for problems.
  • AOI PCB inspection: Automatic or automated optical inspection involves using an optical system that takes an image of the PCB assembly and to identify any flaws.
  • AXI PCB inspection: With density of PCBs increasing not all solder joints may be visible. Optical inspection therefore may not serve the purpose. In such cases an X-Ray system – AXI, is able to look under the chips to view the solder joints.
  • X-Ray Inspection: X-ray inspection is ideal for more complex boards & provides capabilities that other inspection methods can’t. The X-ray inspection will let you see inside solder joints to reveal bubbles that you can’t see using AOI.

Let us look at some defects that can be easily pointed out using some of these PCB inspection techniques:

Blind or Buried Vias

The use of vias in PCBs has become ubiquitous as they help different layers of the board to be connected easily. The integrity of blind and buried vias, however, cannot be ascertained with visual inspections. X-ray inspection can though send radiations that can penetrate through hidden spots and make it easy to assess the quality of connections as well as components.

Errors in landing patterns

Landing patterns of specific elements on the board often have errors associated with them. For example, if the components used on the board are not included in the library of commonly used SMD components, the chances of having the landing pattern wrong are that much higher.


With the use of the Ball Grid Array system, components are packed with high density on the board. In this case also a PCB X-ray machine comes in handy to check the quality of components as well as board connections. The images generated from the PCB X-Rays can go a long way in seeing individual components and identify any flaws.

Decoupling Capacitors

Decoupling Capacitors help in ensuring stability of power supply as also removing oscillations and transients. Wrong placement of capacitors can however lead to suboptimal performance of the device. An inspection process ensures easy identification of any erroneous placement and correction.

Solder Voids

Soldering plays a very important role in connecting the component to the board. Any error in soldering leads to faulty connections and will impact the integrity of the PCB.

Inspection is therefore imperative to look for solder voids that can lead to low quality connections. In turn, it ensures that poor quality connections can be avoided.

Pin-Hole Fills

Through-hole is an important technique of connecting components to the PCB. However, it is prone to several defects including pin-hole fills. Essentially, they occur on account of escaping of gas while soldering. If the heat of soldering is excessive, it will lead to continuous escape of gas. During a quality assessment the pin-hole fills can be identified and integrity of soldering, ascertained.

To Sum Up

PCB Inspection comes with a wide range of benefits and ensures quality control of PCB. In fact, inspection of PCBs can help improve the overall PCB production process. If a particular defect tends to occur repeatedly, you can correct the flaw at the process level itself. Looked at in this manner, PCB inspection plays an important role in the continuous improvement of the PCB production process.

While it may be tempting to look at it like a cost, the fact remains that the cost of failure of products can be far higher, in the absence of inspection. Inspecting PCBs can uncover any defects. In fact, checking PCBs after each phase can help uncover flaws before moving to the next stage. The inspection method can help you ensure consistent quality across boards. Without a proper inspection protocol in place, flawed boards could reach the market. Especially if the defects are found out after the products have been shipped out, you not only may need to deal with expensive recalls, you will also have to face a costly loss in reputation. Worse still, a defective PCB can lead to injury or death, particularly if it is being used in a medical device or an automotive component.

From manual visual inspection to Automated Optical Inspection, X-Ray inspection, PCB functional testing and more, the wide range of inspection techniques ensure adequate performance while maintaining acceptable cycle times. Determining the best techniques for the needs of your project can go a long way in ensuring PCB integrity.

At Technotronix, we are fully equipped to handle your PCB manufacturing requirements. Our team of experts and state-of-the-art equipment ensures that all our PCBs meet the industry standards of quality and testing. It is our vast portfolio of satisfied clients that stand as the biggest testimony to our success. In case if you have any questions, please feel free to contact us via email at sales@technotronix.us or call us on 714/630-9200.

What is electromechanical assembly? What are the factors to consider for designing it?

By | Date posted: | Last updated: February 1, 2022

An electromechanical assembly is known to utilize electrical as well as mechanical components when it comes to performing a wide variety of functions, including but not limited to:

  • Generating Power
  • Controlling Systems
  • Conducting mechanical tasks

Electromechanical Assemblies find extensive application in:

  • AC & DC power distribution
  • Control Systems
  • Computer Interfaces

Putting together effective electromagnetic assemblies requires the skills of highly qualified technicians who have the required expertise in a wide range of production skills, from through hole work and surface mounting, to soldering and circuit layout. The involvement of skilled technicians also means that the production times are significantly reduced. Assembly services for electromechanical devices involve a wide range of operations including:

  • Procurement
  • Engineering operation
  • Production operation
  • Robust testing procedures

A significant number of electromechanical assemblies use PCBs that use different tracks to conduct current to components. The tracks are threaded across a substrate. Multi-layer boards often involve the use of vias to connect several layers.

As far as the PCB assembly methods are concerned, there are several assembly methods including:

  • Bench
  • Line
  • Focused Cell Assembly

Factors to be considered in designing electromechanical assembly

When it comes to designing or upgrading electromechanical assembly, the process requires a lot of dexterity and needs you to take several factors into account. These include meeting specific requirements, addressing technical issues as well as taking costs into account.

Here are the primary factors that need to be taken into account in designing or upgrading your electromechanical assembly:

Upgrade or new design

When it comes to the technology of electromechanical systems, they are in a constant phase of change. It is therefore prudent to evaluate the components for quality. While in some cases upgrading your existing designs can be prudent, in yet others it is more cost-effective to have a new design in place.

Real World Testing for Electromechanical Assembly

An important aspect of electromechanical assembly is its extensive use. In designing the assembly, it is imperative that its usage be taken into account. The system therefore needs to be tested for structural integrity as well as durability. The efficacy of a good design is when it can stand tall in these tests. In the absence of robust testing, you tend to stand the risk of the design failing you at a later stage and leading to costly errors.

Software and Support

When it comes to electromechanical assemblies, the focus has to be on software as much as it is on hardware. You need to make sure that the contract manufacturer has competent engineers that can take care of the software requirements as also provide support. In fact, the ability of the manufacturer to offer support in terms of meeting delivery schedules, parts and services on demand is crucial.

Check for tolerances

It is imperative to make sure that each part has a defined tolerance. It is also important to determine that even in the worst cases of tolerance build-up, everything fits together. The sub-assemblies also need to fit into the final assembly.

Avoid too many parts

An effective way of assessing design is if it has a reduced number of parts. Less number of parts make assembly easier. It will be helpful to determine whether parts can be combined together.

Timely Delivery

With time being of the essence, it is also prudent to check for the fact that the specific parts required will be available within the set timelines. It is ideal that the manufacturing partner monitors all parts using RFID tags or barcodes so that you can rest assured that the assembly is up to speed.

Have enough space

In looking at the final design drawing, it is important to check that there is enough space for the assembly staff to put it together. Space is also of the essence when it comes to servicing.

Involve the PCB Contract Manufacturer Early

It is important to involve the PCB contract manufacturer as early as when the first draft of the design is ready. You also need to have sufficient time to make changes after the prototype.

The above tips can go a long way in designing an effective electromechanical assembly. Getting the process right will help with cost-effective product build, shorter lead times as well as greater reliability.

We are one of the leading PCB manufacturers in the USA. We have over 4 decades of experience in providing innovative Electromechanical assembly services. We take an extra step to reach out to your exact PCB manufacturing requirements, high-quality standards, and a strong customer support service to provide quick turnarounds and on-time delivery to our customers. In case you have any questions, please feel free to contact us via email at sales@technotronix.us or call us on 714/630-9200.