HDI PCB Assemblies
  Choosing the Right PCB for Applications
  Steps to Troubleshooting a Circuit Board
  All About High Density Interconnect Circuit Boards
  High Density Interconnector Makes Miniaturization Possible
  The Benefits of HDI Circuit Boards
  Understanding the Basics of Microvia
  3 Major HDI PCB Design Mistakes to Avoid
  High Density Interconnect PCBs Strive to Set the Standard in Small Technology
  Current Technology Advancements Leading to Smaller Mobile Devices
  Understanding a PCB Assembly
  Trust in a Reputable PCB Manufacturer for All Circuit Board Assembly Needs
  Several Ways to Use Old Circuit Boards
  Manufacturers on a Budget Might Explore the Idea of Cheap Printed Circuit Boards
  The Real Cost of Choosing Cheap PCB
  Cheap PCB Suppliers
  Cheap PCB
  The USAF’s Cheap PCB Blunder
  Cheap PCB’s Are Not the Way to Go
  Options for Acquiring Cheap PCB
  Finding Quality and Cheap PCB Options
  The Emergence of Cheap PCB
  How Does a Printed Circuit Board Get Made?
  The Use of Printed Circuit Boards in Various Industries
  Ordering a Printed Circuit Board for the First Time
  Error-Proofing in Printed Circuit Board Fabrication
  Printed Circuit Boards in Defense Agencies
  Printed Circuit Board File Generation
  Understanding Printed Circuit Board Design Software
  Buying Printed Circuit Boards from Reputable Companies
  Buying a Printed Circuit Board
  Things Buyers Look for in Printed Circuit Board Companies
  The Purchasing Process for Modern Printed Circuit Boards
  Finding a Quality Printed Circuit Board Manufacturer
  Printed Circuit Board Special Offers and Discounts
  Budgeting in Printed Circuit Boards at Larger Companies
  Printed Circuit Board Popularity in Various Sectors
  Finding Specials from a Printed Circuit Board Company
  Printed Circuit Board Company Reputations
  Printed Circuit Board Specials for Engineers
  6 Different Types Of Printed Circuit Boards
  5 Things To Consider Before Designing A Printed Circuit Board
  3D Printing: The Future Of PCBs
  4 Jobs That are Safe From Artificial Intelligence… For Now
  4 Ways Technology is Going to Change the World as we Know It
  4 Things you Didn’t Know About Microchips
  5 Things to Know Before Getting Into Robotics
  Top 5 Biggest Myths Surrounding Artificial Intelligence
  How to Get the Most Out of Technology Today
  Top 4 Things to Know Before Having a Custom Printed Circuit Board Made
  Top 3 Money-Saving Tricks for Pcb Fabrication That Won’t Compromise Quality
  How to Make Money From Fabricating Custom Printed CIrcuit Boards From Home
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Understanding a PCB Assembly

Understanding a PCB Assembly
 printed circuit board assembly

There is some confusion about the definition of a printed circuit board assembly. Most people may simply call these printed circuit boards, or PCBs. However, PCB really only refers to the actual board. When all of the components have been attached and wired together, that produces a printed circuit board assembly. The assembly is a product that actually functions. In order to understand this, it might be helpful to read a short summary of how components get mounted on a PCB board to form the assembly.

How Are Printed Circuit Boards Assembled?
 printed circuit board assembly

There are two basic ways that the components are attached to the board: • Through-hole: The leads of the components are inserted into holes that are already set into the board. • Surface-mount: In this type of assembly, the components are mounted onto pads on the board.

In either case, the parts are permanently attached to the board with by soldering them there at temperatures hot enough to make metal molten. Most complex boards actually may make use of both types of mounting. Some components are only available with mounting packages for one of the other type of mounting.

Surface vs. Through-Hole Mounting of PCB Components
 printed circuit board assembly

There are also advantages and disadvantages to each kind of mounting. Designers have to consider the strength they need from the connections and the available space on the board. Of course, the main consideration might be the style of mounting available for certain components that are needed for the final assembly. This is a short comparison of the two types of component mounting: • Through-hole mounting is more robust, and it is usually considered for parts that might endure more physical stress. However, it makes boards more expensive because these holes have to be precisely drilled. Typically, parts that need holes drilled also take up more space.

 printed circuit board assembly

• Surface-mounted parts usually take up less space on a board, and this might be considered for some complex designs. This is a newer method that has parts with small tabs on them that can get soldered right to the surface. It's cheaper, but it is not likely to be as durable.

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