Pre-Reflow 2D Automated Optical Inspection

Pre-Reflow 2D Automated Optical Inspection

Pre-Reflow 2D Automated Optical Inspection at Profab Electronics: Your Quality Checkpoint Before Soldering

The path to a flawless PCB assembly involves several critical checkpoints, one of which is the Pre-Reflow 2D Automated Optical Inspection (AOI). At Profab Electronics, we deploy state-of-the-art 2D AOI technology to meticulously inspect each PCB assembly before it undergoes the reflow soldering process. This crucial step ensures that every component is in its right place, marked correctly, and properly oriented, effectively eliminating the risk of costly and time-consuming post-reflow rework.

The Importance of Pre-Reflow Inspection

Performing an AOI before reflow soldering is a strategic move designed to catch any discrepancies early in the process. Whether it's the presence or absence of a component, its polarity, or its markings, this stage verifies it all. Failing to catch such errors before reflow could result in considerable time and effort spent in reworking the assembly.

Verification of Component Markings, Polarities, and Presence

Our 2D AOI systems are calibrated to scrutinize every detail of the assembly. They ensure that all component markings are accurate, polarities are correct, and all required components are present. This thorough verification safeguards against the possibility of errors that could compromise the functionality of the final product.

Advanced Technology for Detailed Assessment

Although the technology employed is 2D, the level of detail it offers is extraordinary. By capturing high-resolution images and comparing them against predefined criteria, our 2D AOI systems can identify even the smallest deviations, allowing for immediate corrective action before the assembly moves to the reflow stage.

Quality Compliance and Standards

As with all our processes, our pre-reflow 2D AOI inspections are conducted in strict compliance with industry standards, including ISO 9001, AS9100, and ITAR regulations. These rigorous protocols ensure that you're not only getting a quick assembly but also one that meets the highest quality benchmarks.

Integrated with the SMT Workflow

The pre-reflow 2D AOI is an integral part of our Surface Mount Technology (SMT) workflow. Positioned right after the pick and place stage and before reflow soldering, it serves as a vital quality checkpoint. This strategic placement ensures a seamless, efficient, and most importantly, reliable assembly process.

Time and Cost Efficiency

By identifying and rectifying issues at this stage, we help clients avoid the often complicated and costly process of rework after reflow soldering. The result is not only a better-quality product but also a more cost-effective and quicker assembly process.

The Pre-Reflow 2D Automated Optical Inspection at Profab Electronics is more than just a step in the assembly process; it's a strategic quality control measure. This attention to detail ensures that your PCB assemblies are not just swiftly produced but are also of exceptional quality, ultimately saving you both time and resources.

Our Core PCB Assembly Services

Surface Mount (SMT) PCB Assembly

Specializing in compact, high-density boards, our SMT assembly services offer unmatched precision and efficiency.

Through-Hole PCB Assembly

A go-to solution for durable, robust connections, our through-hole assembly services are perfect for heavy-duty components and traditional PCB layouts.

Comprehensive Service Options

Turnkey PCB Assembly Services

Experience hassle-free, full-service solutions that cover everything from materials procurement to the final stages of assembly.

Consigned PCB Assembly Services

You provide the crucial components, and we focus solely on expert assembly, optimizing the value chain.

Partial Turnkey PCB Assembly Services

Offering a balanced, flexible approach, our Partial Turnkey Services combine your sourced components with our procurement and assembly.

Adaptable Volume and Rapid Turnaround

From Prototype to Full-Scale Production

We seamlessly adapt to project scales, fulfilling both one-off prototypes and mass production needs.

Quick Turn Prototype PCB Assembly

For your time-sensitive projects, we expedite the prototyping process without compromising on quality.

Quick Turn Production PCB Assembly

Leverage our agile manufacturing capabilities for fast, yet reliable mass production.

Scheduled Blanket Order Production PCB Assembly

Streamline your long-term production requirements with our efficient and convenient scheduled blanket order options.

Value-Added Services

PCB Assembly Testing Services

Ensuring each PCB functions flawlessly with multiple levels of quality checks.

PCB Assembly Firmware Programming

We embed all the necessary software, making your PCBs operationally ready right out of the gate. We offer in-circuit programming as well as pre-programing.

Mechanical Assembly for PCB Assemblies

Extending our services beyond PCBs, we offer complete mechanical assembly for finished electronic products.

PCB Assembly Conformal Coating

Applying a specialized protective layer that adds durability and longevity to your PCB products.

Technology and Infrastructure

Our State-of-the-Art Equipment

Essegi Robotic Inventory Storage

Highly efficient and automated storage solutions for component management.

Optical Control X-Ray Component Counter

Utilizes advanced X-ray technology for pin-point accurate inventory counts.

MPM Solder Paste Printers

Ensures precise and consistent solder paste application for optimum connectivity.

Pemtron 3D Solder Paste Inspection (SPI)

Advanced Solder Paste Inspection tools for top-notch quality control.

Samsung/Hanwha Pick and Place Machines

Ensures rapid and precise component placement with industry-leading reliability.

In-line Yes-Tech 2D Automated Optical Inspection (AOI) - (Pre-Reflow)

Conducts automated optical inspections before solder reflow to guarantee the highest quality.

Electrovert Reflow Ovens

Offers reliable solder reflow processes for mass production efficiency.

Yestech and Cyberoptics 3D Automated Optical Inspection (AOI)

Post-reflow automated optical inspections to ensure impeccable component soldering.

Dage 3D X-Ray

Advanced internal inspection capabilities for the most thorough quality checks.

Ersa Selective Solder

Specialized soldering technology that targets specific components for precision results.

Aqua Klean Systems In-line PCB Cleaner

Delivers impeccably clean PCBs, ready for shipping or immediate use.

Compliance and Quality Assurance


ISO 9001, AS9100, and ITAR compliance means we meet and exceed international standards of quality and security.

In-House IPC Trainer

Our teams are updated on the latest IPC standards, ensuring we are always ahead of industry requirements.

Class 2 and Class 3 Inspection

Our processes are versatile enough to meet both Class Two and Class Three soldering and inspection standards, giving you more options and peace of mind.

Why Should Profab Electronics Be Your First Choice?

Unmatched Expertise

With years of industry leadership, we have the knowledge and skills required to bring your most ambitious projects to life.

Quality Above All

Our relentless focus on quality ensures that your projects are not just completed, but masterfully executed.

Superior Customer Service

We don’t just aim to meet your expectations but to significantly exceed them, every step of the way.

About Profab Electronics

Profoundly embedded in the electronics manufacturing sector, Profab Electronics has been steadfast in its commitment to deliver excellence for over three decades. Our unparalleled experience, fortified by our stringent quality standards, positions us as a trusted partner in the realm of Electronics Manufacturing Services (EMS).

We're an ISO 9001 and AS9100 certified company, and our adherence to these globally recognized standards attests to our unyielding quest for quality. Our team comprises experts who hold formative training on the latest IPC standards, ensuring that we consistently produce electronic products of the highest caliber.

Our proficiency lies in PCB assembly, offering a spectrum of services ranging from Surface Mount (SMT) to Through-Hole Assembly. From the initial stages of prototyping to high volume pcb assembly, we offer comprehensive solutions to meet client requirements.

At Profab Electronics, we synergize our expertise and experience to deliver high-quality electronic products. Our unwavering commitment to quality, innovation, and customer satisfaction has established Profab Electronics as a leader in the electronics manufacturing industry. Trust us to bring your technological visions to life.