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PCB Assembly
Circuit Card Assembly

EMS specialized in time-to-market services
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In today's dynamic electronics market, rapid product deployment is key to staying ahead. At Sparqtron, we specialize in delivering high-quality, mission-critical Printed Circuit Board Assembly (PCBA) and Circuit Card Assembly (CCA) services for over 26 years. Our proficiency in circuit board prototyping and quick-turn services accelerates your product's time-to-market, helping you outpace the competition.

About PCBA and CCA

We provide PCBA and CCA services.

Printed Circuit Board Assembly (PCBA) involves the precise soldering and placement of electronic components onto a printed circuit board, transforming it into a fully functional device. This critical process serves industries such as consumer electronics, medical, automotive, and telecommunications.

Circuit Card Assembly (CCA) refers to a more specialized form of assembly, often required in high-complexity industries like aerospace, defense, military, and medical sectors. These industries demand the highest standards of reliability, making CCA essential for mission-critical applications.

Both PCBA and CCA ensure optimal component placement and robust connections, resulting in dependable, high-performance products.

Our Professional Services

Sparqtron offers a broad range of flexible, cost-effective solutions, from quick-turn PCB prototypes to full-scale production runs. Our turnkey services, supported by expert engineering and manufacturing teams, allow us to solve complex challenges that other providers may struggle with. Our dedication to excellence has earned us repeat business and strong referrals from satisfied clients.

Our Expertise in PCB Assembly

Our SVP of Engineering and Manufacturing brings over 30 years of experience in the electronics contract manufacturing industry, specializing in PCB assembly. They have led global NPI operations at renowned top tier EMS companies, ensuring the seamless transition from prototype to production. Their extensive knowledge in quick-turn PCB assembly has been instrumental in reducing time-to-market for our clients.

Our commitment to precision and efficiency in PCB assembly has earned us a distinguished reputation among Silicon Valley engineers. We leverage best practices developed over decades to deliver high-quality, reliable PCB assembly services that meet the stringent demands of the high-tech industry.

PCB Design and Layout Services

Our PCB design and layout services, in partnership with a globally recognized design house with over 28 years of experience, provide superior quality and service. We offer:

  • PCB Layout
  • Schematic Capture
  • Component Placement
  • Routing
  • Thermal Analysis
  • Power Integrity Checks

Whether you need a design from scratch or an upgrade to existing designs, our services ensure optimal performance and reliability.

PCB/CCA Fabrication, Assembly, and Manufacturing

services for PCB Assembly, Printed Circuit Board Assembly and Flexible PCB Circuit Board Assembly

Our PCB fabrication services involve creating the PCB foundation through processes like layering, etching, and adding copper traces. We cover:

  • Quick-turn PCB Prototyping
  • Quick-Turn Services for Small Batches
  • Full-Scale Manufacturing

We collaborate with certified PCB fabrication manufacturers to meet specific project requirements, ensuring efficient, high-quality production. Our fast turn PCB assembly and fast turn circuit board manufacturing services are designed to meet urgent project deadlines, offering quick turn PCBs and fast turn prototype PCB board solutions.

Flexible PCB Solutions

We tailor our offerings to meet diverse needs, including:

  • Quick-Turn Projects: Rapid turnaround with local manufacturers, sometimes within a day, perfect for quick turn PCB assembly needs.
  • Complex PCB Projects: Specialized manufacturers for high-layer count PCBs and complex assemblies.
  • Cost-Effective Solutions: Budget-friendly options from competitively priced manufacturers.

PCB/CCA Component Assembly Capabilities

Our capabilities include SMT/SMD, through-hole, and mixed-technology pcb assemblies. We specialize in:

We expertly handle complex PoP assemblies, ensuring precise BGA placements with pitches as fine as 0.25 mm.

services for PCB Assembly, Printed Circuit Board Assembly and Flexible PCB Circuit Board Assembly

Quick-turn Prototype PCB/CCA Assembly

We provide fast and reliable prototype PCB and CCA assembly services, allowing engineers and developers to efficiently test and validate their designs. This critical process helps identify errors and ensure functionality. Our services include prototype circuit board assembly, PCB prototype and assembly, and comprehensive prototype PCB assembly solutions.

Comprehensive PCB/CCA Assembly Process

Our meticulous PCB assembly process ensures the creation of reliable and functional electronic devices:

  1. Pre-Assembly Preparation: We carefully select components and finalize PCB design, preparing all materials for seamless integration.
  2. Solder Paste Application: Using precision stencils, solder paste is applied to PCB pads, ensuring accurate component placement.
  3. Component Placement: Our advanced automated equipment precisely positions components on the solder paste, with real-time AOI for accuracy.
  4. PCB Positioning: Accurate alignment is crucial. We utilize panel, global, and local fiducial marks for precise indexing at every stage.
  5. Soldering (Reflow): The assembly is heated in a reflow oven, melting the solder and securely bonding components to the PCB.
  6. Conformal Coating: We provide advanced conformal coating services to protect PCB assemblies from environmental conditions, increasing product longevity and reliability.
  7. Vision Inspection: Assembled boards undergo rigorous inspection with AOI and X-ray to detect any defects and ensure quality.
  8. Testing: Final testing, including ICT and functional testing, verifies the correct operation of each assembled PCB. For detailed information on "Inspection and Testing," Read More

Each step is critical to delivering high-quality PCB assemblies that meet the diverse needs of our clients.

Comprehensive PCB/CCA Assembly Process

The PCB assembly process involves several essential steps to ensure the successful creation of functional electronic devices:

  1. Pre-Assembly Preparation: Select appropriate components and finalize the PCB design. Unpack the received components and prepare them for loading into the Surface Mount Devices (SMDs) line.
  2. Solder Paste Application: A stencil is placed over the PCB, and solder paste is applied to the board pads where components will be mounted. After application, the stencil is lifted, leaving solder paste on the designated pads.
  3. Component Placement: This process includes board indexing, fiducial alignment, component pickup, centering, placement, and automated optical inspection (AOI). Each component is precisely positioned on the solder paste before moving to the next stage.
  4. PCB Positioning:

    During board indexing, the PCB is aligned using fiducial marks to ensure accuracy at each assembly stage. The three main types of fiducial marks are:

    • Panel Marks: Global marks on a multi-board panel.
    • Global Marks: Fiducials on individual PCBs to locate all features.
    • Local Marks: Fiducials for specific, precision-critical components.
  5. Soldering: The assembly is passed through a reflow oven where the solder paste melts and solidifies, securing the components to the PCB.
  6. Conformal Coating: We provide advanced pcb conformal coating services for PCB assemblies. Conformal Coating Process protects PCB against many environmental conditions.
  7. Vision Inspection: Assembled boards undergo inspection for defects and quality assurance using techniques such as AOI (Automated Optical Inspection) and X-ray inspection.
  8. Testing: Final testing ensures that the assembled PCBs function correctly. This includes in-circuit testing (ICT) and functional testing. For more on "Inspection and Testing," please Read More

These steps are crucial in producing reliable, high-quality PCB assemblies tailored to meet the specific requirements of various industries.

Proven Expertise and Expertise:
PCB Assembly Projects


Very Large Complex
PCB Board Assembly

very large pcb-assembly

Very Tiny and Difficult
Flex PCB Assembly

Tiny flex circuit boards

High Density and Heavy BGA Assembly

high density circuit card

Highlights of Our Flexible PCB and CCA Services

Printed Circuit Board Assembly, CCA Assembly, fast turn circuit board services
  • Design Review: Comprehensive DFM/DFT reviews to prevent costly errors and ensure smooth production.
  • Flexible Support: Adaptive to engineering changes, ensuring your project incorporates the latest updates.
  • Advanced Capabilities: Expertise in handling 01005 SMT/SMD components and PoP assemblies.
  • Quick Turnaround: Rapid prototyping often within 24 hours, ideal for urgent design needs.
  • Flexible Assembly Options: Choices for consignment, turnkey, and hybrid solutions to suit specific requirements.
  • Build Types: From low-volume to high-volume and full-scale manufacturing.
  • PCB Types: Single-Sided, Double-Sided, Multi-Layer, Rigid, Flex, HDI, Rigid-Flex, Alumina Ceramic, and Aluminum PCBs.
  • Lead-Free and Leaded Assembly: Offering both Pb-Free, RoHS-compliant, and traditional lead-based solder processes.

Innovation and Technology

At Sparqtron, we stay at the forefront of technological advancements in the electronics manufacturing industry. Our investment in state-of-the-art equipment and continuous improvement initiatives enables us to offer cutting-edge solutions and maintain a competitive edge.

(A) Manufacturing and Testing Equipment for PCB Assembly

  • SMT/SMD placement equipment
    (3 lines with 5 CPs, 01005 footprint, PoP)
  • Thru-Hole Lines
  • Screen printer
  • Epoxy dispenser
  • Reflow oven
  • Wave soldering
  • Cleaning system
  • BGA rework station
  • 3D X-Ray system
  • AOI inspection system
  • Flying Probe
  • In-Circuit Test System

(B) New PCB Assembly Equipment Added Annually:

Below are the recently added advanced equipments:

FUJI:AIMEX III,
High Speed Multi-placer



Fuji high speed PCB Assembly Manufacturing machine

Mirtec MV-6 Omni 3D AOI
In-Line AOI Machine
(high resolution)
FMirtec MV-6 Omni 3D AOI In-Line AOI Machine (high resolution)

Trident ZDO High-Yield
Cleaning System
Cleaning System for PCB Assembly Manufacturing

Nordson Dage 3D X-Ray
Quadra 5 Inspection System
F2-Electronics Box Build Assembly Manufacturing

Inspection for PCB Assembly and CCA
Advanced 3D X-Ray (Ultra High Resolution)

Nordson DAGE Ruby X-ray
Inspection System

Ruby 3d x-ray for checking pcb assembly circuit board

Nordson Quadra™ 5 X-ray
Inspection System

Nordson Quadra-5 X-ray for Inspection PCB-assembly boards


Need help for Difficult PCBA Board Debugging Support?



PCB assembly, circuit card assembly, PCB circuit board Ball Grid Array (BGA) and Chip Scale Packages (CSP) are extensively utilized in the manufacturing of electronic devices. At our facility, we employ the Nordson DAGE Ruby X-ray and Nordson Quadra 5 X-ray Inspection Systems for ultra-high-resolution inspections testing.


X-Ray symbol for printed circuit board checking  The X-ray Inspection System of choice:

Quadra™ 5 is the X-ray inspection system of choice for submicron applications such as PCB and semiconductor package inspection, counterfeit component screening and finished goods quality control. The Nordson DAGE XD7600NT and Nordson Quadra 5 stand as exceptional machines designed for a comprehensive range of PCBA inspection tasks. These systems serve as invaluable tools for aiding R&D engineers in diagnosing highly complex PCB assemblies, thereby accelerating the schedules of their development projects.


🔧  This is he Most Powerful Tool for Engineers:

High Precision Inspection: Our ultra-high-resolution inspection capabilities ensure meticulous examination of PCB SMT/SMD assembly components, including BGAs and CSPs.
R&D Support: These advanced inspection systems provide crucial support to R&D engineers, facilitating accurate diagnosis and swift progress in project timelines.



Industry Applications and Services

Our PCB/CCA assembly services cater to various industries, including defense, medical, communications, industrial, commercial, and automotive sectors. Medical device manufacturing is a major focus. We also offer off-shore competitive production options in Taiwan for high-volume needs.

Commitment to Quality and Timeliness

Quality control is essential in printed circuit board (PCB) assembly to ensure that the final product meets the required standards and functions correctly.

At Sparqtron, we prioritize quality and reliability in every project. Our PCB and CCA services adhere to stringent quality standards and industry certifications, including ISO 9001, ISO 13485, IPC-A-610 and FDA regulations, etc.

We implement rigorous quality control measures throughout the manufacturing process to ensure that every product meets or exceeds customer expectations. Our quality control methods for PCBs include: X-ray inspection, Visual inspection, In-circuit testing (ICT), Burn-in testing, flying probe testing, automated optical inspection (AOI), and functional testing, etc.

Sparqtron is renowned for consistently delivering high-quality PCB/CCA assemblies on time, earning our clients' trust for reliability. We pride ourselves on responsive service, swiftly addressing complex printed circuit board assembly requirements with effective solutions.

Customer Support and Collaboration

Our dedicated customer support team is available to assist you at every stage of your project. From initial consultation to final delivery, we work closely with our clients to understand their unique requirements and provide tailored solutions. Our collaborative approach ensures seamless communication and successful project outcomes.



Our privacy policy: As stated in our Term of Use, We commit protecting all data generated by and provided to us by our users from being stolen, compromised, or used in violation with this policy. We will not share, release, publish, disclose, rent, or sell any personally identifiable information to third parties.

We Accelerate your Products' Time-to-Market

Sparqtron is a proven expert in helping customers achieve rapid time-to-market for their products. With our highly knowledgeable and experienced team, we specialize in material management, PCB assembly, quick-turn prototyping, and new product introduction (NPI). Our quick turn services, often completed in less than 24 hours, ensure that your products are delivered to market faster than ever before, providing a competitive edge in today's fast-paced electronics industry.



Success Story: Thanks Mail from a Top Tier Customer

I am writing to express my appreciation for the outstanding support that Sparqtron has provided to our project over the past year.

From the beginning of the project, Sparqtron has been extremely helpful in every way possible. Your team has been instrumental in material preparation, DFM, and has shown great flexibility when it comes to production scheduling. I want to extend my gratitude to the Engineering, Production, Purchasing, and Stockroom teams for their contributions to the project.

Thank you again for your outstanding support and for the excellent work done by the Sparqtron team. I look forward to continuing our partnership and achieving further success together.

Environmental Responsibility

We are committed to environmental sustainability and compliance with global environmental regulations. Please see our Sustainable Practices in Manufacturing. Our lead-free and RoHS-compliant assembly processes minimize environmental impact, and we continuously seek ways to reduce waste and improve energy efficiency in our operations.


Request for a Quote for PCBA / CCA Assembly

Please send us the following information; we will send you the quotation very quickly.


Consign Project

Turnkey Project

BOM with AVL and location in excel format

BOM with AVL and location in excel format

Complete gerber file in standard 274X format

Complete gerber file in standard 274X format

PCBA assembly drawing in searchable PDF format

PCBA assembly drawing in searchable PDF format

PCB drawing in searchable format

PCB drawing in searchable format

XY data / placement file

XY data / placement file

CAD file and schematic (Only for flying probe test is required)

CAD file and schematic (Only for flying probe test is required)

Test procedure and estimated time (Only if functional test is required)

Test procedure and estimated time (Only if functional test is required)

FAB penalization information or drawing (Only required for production)

Any other special instructions

FAB penalization information or drawing (Only required for production)

Any other special instructions

Any other special instructions

Requrst for a Quote


User Guide for a Lead-Free/
RoHS-compliant PCB assembly

  • Printed Circuit Board/Circuit Card: Make sure to have your printed circuit board vendor fabricate boards for lead-free / RoHS compliance. Make sure the PCB board manufacturer uses materials that can withstand the additional heat and can make multiple passes through processing without problems.
  • Components: Your Bill-of-Materials must specify only RoHS compliant parts. The components in your kit must all meet lead-free and RoHS standards.
  • High-Temperature Considerations: Even for RoHS-compliant components, some of them cannot sustain high temperature. Please make sure to notify us if any component is heat sensitive.
  • Ball Grid Arrays: Ensure the solder balls of the BGA are lead-free type. Soldering a lead-based solder ball BGA at lead-free reflow temperatures will fail.
  • Moisture Sensitivity: Ensure components are kept in RoHS compliant storage packaging to prevent moisture. If any unopened package exceeds the expiration date or is being opened, these components will need to be properly baked to remove the excess moisture before manufacturing.

By following these guidelines, you can ensure your printed circuit board assemblies are both RoHS-compliant and reliable.

Please click the question to get the answer.

What is a Printed Circuit Board Assembly (PCBA)?
What is Surface Mount Technology (SMT)?
What is Through-Hole Technology (THT)?
What is a ball grid array (BGA)?
What is a Surface-Mount Device (SMD)?
What is a Package on package (PoP)?
What are the common questions regarding PCB Assembly?
What are the types of PCB Assembly?
What is the PCBA process?
How do I select a good PCB board manufacturer?
What are the different types of PCBs?
What files or documents are required for printed circuit board Assembly?
What are the basic electronic components necessary for circuit card assembly?
CCA versus PCBA: What's the difference?
What are the environmental considerations in PCB manufacturing?
What is the PCB Manufacturing Processes?


PCB Assembly & Circuit Card Assembly Services with
Outstanding Engineering & Manufacturing Support

FDA medical regulations for PCB ISO9001 quality standards for PCB manufacturing ISO13485 medical quality standards for medical manufacturing ITAR regulations relating to PCB assembly UL quality safety standard for circuit board assembly IPC industry quality standards for PCB boards

Contact Information: Sparqtron Corporation
Tel: 1-510-657-7198 EXT. 200, eMail: info@sparqtron.com

Address: 5079 Brandin Court, Fremont, California CA 94538, USA
(In Silicon Valley, San Francisco Bay Area, near San Jose, California)


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