Browse Definitions :
Definition

printed circuit board (PCB)

Contributor(s): Matthew Haughn

A printed circuit board (PCB) is the board base for physically supporting and wiring the  surface-mounted and socketed components in most electronics. 

In applications where fine conductive traces are needed, such as computers, PCBs are made by a photolithographic process, in a larger scale version of the way conductive paths in processors are made. 

Electronic components are typically placed by machine onto a finished PCB that has solder dabs in place. The PCB bakes in an industrial oven to melt the solder, which joins the connections. Most PCBs are made from fiberglass or glass-reinforced plastics with copper traces.

PCBs can be single-layer for simple electronic devices. Printed circuit boards for complex hardware, such as computer graphics cards and motherboards, may have up to twelve layers. PCBs are most often green but they can come in any color.

Other methods of PCB manufacturing include silk-screening and CNC-milling.

See a demonstration of building a four-layer PCB:

This was last updated in September 2013

Continue Reading About printed circuit board (PCB)

Join the conversation

3 comments

Send me notifications when other members comment.

Please create a username to comment.

Cool bit of trivia for those playing along at home: a Printed Circuit Board isn't actually green. It's the solder mask - the coating on top of the board - that's green. According to this FAQ it's used to prevent soldering errors / short circuits. This means a PCB can actually be most any colour: red, blue, heck even purple. Just thought that as a cool tidbit for anyone who reads through to the comments :D 
Cancel
I have collected your videos, but please be assured that they will not be used for commercial purposes. Have a nice day.
Cancel
These PCBs are just awesome tech, no matter how expenshive electronics products you get or how cheaper product you get, its something is used in every electronics, i was also reading the manufacturing process here its just awesome to work on pcbs
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

  • compliance as a service (CaaS)

    Compliance as a Service (CaaS) is a cloud service service level agreement (SLA) that specified how a managed service provider (...

  • data protection impact assessment (DPIA)

    A data protection impact assessment (DPIA) is a process designed to help organizations determine how data processing systems, ...

SearchSecurity

  • Port Scan

    A port scan is a series of messages sent by someone attempting to break into a computer to learn which computer network services ...

  • DMZ (networking)

    In computer networks, a DMZ (demilitarized zone), also sometimes known as a perimeter network or a screened subnetwork, is a ...

  • quantum supremacy

    Quantum supremacy is the experimental demonstration of a quantum computer's dominance and advantage over classic computers by ...

SearchHealthIT

SearchDisasterRecovery

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

SearchStorage

Close