'The Magic One': LEDs Celebrate 50 Years Print E-mail
Wednesday, 10 October 2012 08:52

It was 50 years ago today when a then 33-year-old scientist at General Electric invented the first practical visible-spectrum light-emitting diode, a device that GE colleagues at the time called “the magic one” because its light, unlike infrared lasers, was visible to the human eye.

 

Dr. Nick Holonyak, Jr. could not have known then the door he was opening, but today LEDs are not only the foundation of a massive government-driven push to eliminate the popular (but higher energy consuming) incandescent, but also a potentially enormous market for the manufacturers of LED and driver printed circuit boards at the core of LEDs.

LEDs contain metal or graphite core bare boards, generally with lead-free solder paste. They are not easy to rework, on account of their heat-sinking core. The LED components are typically surface-mounted, although some versions have radial-leaded parts, explains Scott Maudlin of LEDnovation, an OEM of residential and industrial LED lighting.

Many PCB and EMS companies have an opportunity to play in this market today, thanks to one man's bright idea 50 years ago. We owe Holonyak a big round of applause.

 

Image courtesy Scott Maudlin, LEDnovation

 

Follow us on Twitter: @mikebuetow

 


Last Updated on Wednesday, 10 October 2012 09:01
 

Columns

Eastern-US: China’s New Competitor?

Parity emerges among EMS Factories from Asia, Mexico and the US.

For the first time in years we see parity in the Eastern US among EMS factories from Asia, Mexico and the US. This EMS market condition will permit American OEMs (the EMS industry refers to OEMs as customers) to have more EMS pathways to choose from. Now more than ever, such EMS assignments will require deeper investigation relating to the OEMs’ evaluation of manufacturing strategies.

Read more...
 
The Human Touch

For those who count on the electronics industry for big feats, it’s been a remarkable couple of years.

Read more...
 

Features

Advances in Concentration Monitoring and Closed-Loop Control

Contaminated bath water skews refractive index results. New technology can accurately measure aqueous cleaning agent concentration.

Read more...
 
Circuits Disassembly: Materials Characterization and Failure Analysis

A systematic approach to nonconventional methods of encapsulant removal.

Read more...
 

Search

Search

Login

CB Login

Language

Language

English French German Italian Portuguese Russian Spanish
 

Products

Panasonic Debuts PanaCIM Maintenance with Augmented Reality
PanaCIM Maintenance with Augmented Reality software provides instant communication and information to factory technicians -- when and where it is needed -- so they can respond to factory needs more...