If you’re new to the world of printed circuit board assembly (PCBA), you may find yourself overwhelmed by the amount of technical jargon and acronyms that are commonly used in the industry. From BOM to DFM, there are a lot of terms to learn and understand. In this post, we’ll break down some of the most common PCBA jargon and explain what they mean.

 

PCB: The Foundation of PCBA

 

The printed circuit board (PCB) is the foundation of any PCBA. It’s a flat board made of insulating material (usually fiberglass or plastic) with conductive pathways etched onto its surface. These pathways, called traces, connect the various components on the board.

 

BOM: Bill of Materials

The bill of materials (BOM) is a list of all the components needed to build a PCBA. It includes everything from resistors and capacitors to microprocessors and connectors. The BOM also includes information about each component, such as its part number, manufacturer, and quantity.

 

SMT: Surface Mount Technology

 

Surface mount technology (SMT) is a method of placing components onto a PCB. Instead of inserting components through holes in the board, SMT components are placed directly onto the surface of the board. This method is faster and more efficient than through-hole assembly.

 

DFM: Design for Manufacturability

 

Design for manufacturability (DFM) is the process of designing a PCBA with manufacturing in mind. This includes considerations such as component placement, trace routing, and board size. By designing for manufacturability, you can ensure that your PCBA is easy and cost-effective to produce.

 

PCBA: Printed Circuit Board Assembly

Printed circuit board assembly (PCBA) is the process of assembling a PCB with its components. This includes placing components onto the board, soldering them in place, and testing the finished product.

 

AOI: Automated Optical Inspection

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Automated optical inspection (AOI) is a method of inspecting a PCBA using cameras and software. AOI can detect defects such as missing components, misaligned components, and soldering defects.

 

ICT: In-Circuit Testing

 

In-circuit testing (ICT) is a method of testing a PCBA while it’s still in the manufacturing process. This involves using a special test fixture to check the electrical connections between components on the board.

 

Conclusion

To better communicate with manufacturers and designers, understanding common PCBA jargon terms is essential.Whether you’re designing your own PCBA or working with a manufacturer, knowing these terms will help you navigate the process more easily.