75th Anniversary of the Transistor


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The year 1905 is well known as the “Miracle Year” because Albert Einstein published four papers that changed the laws of physics and were significant contributions to the foundation of modern physics. Similarly, November 1947 – January 1948 were the three magical months that paved the way for modern-day electronics. This was done by three brilliant scientists who were members of the Mervin Kelly’s Solid State Physics Group and Semiconductor Sub-Group at Bell Labs, which were given the challenging task of creating a solid-state semiconductor switch that could replace the vacuum tube. The famous physicists - Walter Brattain and John Bardeen managed to make the first working transistor, now known as the point-contact transistor. The invention was made on December 16, 1947. A week after that, the device was officially demonstrated to Bell Labs executives as a “magnificent Christmas present." In January 1948, William Shockley demonstrated the junction transistor. All three received The Nobel Prize in Physics (1956) and as per Nobel Prize Committee - "In 1947 John Bardeen and Walter Brattain produced a semiconductor amplifier, which was further developed by William Shockley. The component was named a "transistor."


The Electron Devices Society has decided to celebrate the year 2022-2023 as the 75th Anniversary of the Transistor.  As the history of this invention and of its consequences is much more involved and interesting, it is imperative that the leading EDS Luminaries share the scientific & technological developments which took place in the last 75 years, with the current generation of researchers.  Popularizing talks at Conferences and Mini-Colloquia, Technical Articles in the EDS Newsletter, Webinar Series shall be a part of the various activities undertaken by “75th Anniversary of the Transistor Adhoc Committee” with an aim to provide technical information and education to enlighten EDS members. This shall be a mark of tribute to the men and women who have contributed to the Transistor Story – Discovery, Development, and Applications which has had a lasting impact on people's lives and has benefited mankind where it serves good in social relations, caring for the Earth, science, technology, engineering, and economy.

Manoj Saxena

75th Anniversary of the Transistor Adhoc Committee Chair


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"You Say You Want a Revolution: The Lasting Impact of Bardeen and Holonyak"

The bipolar junction transistor and light emitting diode are two innovations that have made a profound impact on the world. Professors John Bardeen and Nick Holonyak Jr., the respective inventors of these technologies, have also made a lasting impact on ECE ILLINOIS, where they spent the majority of their careers. This talk by Prof. Dallesasse reviews the men and their impact - both local and global - and also looks at some of the current work that ties their contributions together.

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50 year transistor anniversary photo


John Bardeen 1 1 John Bardeen 1 2 John Bardeen 1 3


 EDS Board of Governors Dinner, June 2022                                       

IMG 20220704 180703603 1Fernando Guarin & Mario Aleman at the INAOE, Mexico 

LAEDC 2022 75 Anniversary WIE Mentoring

Latin American Electron Device Conference LAEDC in Puebla, Mexico

Mentoring session organized by EDS Young Professionals and Women in Engineering

nanomaterials lab in the electrical and electronics departament in Universidad de los Andes Colombia

Nanomaterials lab in the electrical and electronics department in Universidad de

los Andes, Colombia

(leftAlba Avila, associate professor at Uniandes, in the middle Jaime Pérez

assistant professor at UNAL -La paz and on the right Carlos Pérez PhD student at Uniandes)

RIT 75th banner BJT 75

Rochester Institute of Technology -  Undergraduate Research Symposium July 28, 2022

Uniandes and UNAL La Paz in Colombia for the 75th Transistor Celebration

Youtube:  https://youtu.be/su1lw2vPQ2E

Uniandes Chapter

The EDS Uniandes chapter (SBC12991J - Universidad de los Andes,ED15) and the department of electrical and electronic engineering celebrated the 75th anniversary of the transistor

IEEE MP Section EDS Indore Chapter

IEEE MP Section EDS Chapter, Indian Institute of Technology Indore 

Guatemala Chapter New

Indigenous students from Luminarias Community Center in Guatemala enjoyed their day watching a pre-recorded video of the 75th anniversary of the transistor and doing projects with snap circuit kits. 

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IEEE EDS Coimbatore 75 Year India 3

IEEE Electron Devices Society Coimbatore chapter along with Karunya institute of technology and sciences students in Premier Vidyaa Vikas Matriculation Higher Secondary School  Coimbatore organized a hands-on training on “Electronics in everyday life”

Indian Inst of Tech Roorkee

IEEE EDS student chapter, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand, India

STEM4Fun Malaysia 1

The STEM4FUN program was conducted by the IEEE Electron Devices Society Malaysia Chapter in collaboration with College of Engineering, Universiti Teknologi MARA (UiTM), the National STEM Center and the Selangor Education Department. The program was supported by the 2022 EDS Humanitarian Project Grant

From Manoj MQ

During October 17-18, 2022, IEEE EDS Delhi Chapter (New Delhi India) organized an in-person Training Program on New Measurement Technologies & Simulation Techniques in Electronics with the help of equipments/softwares as well as experts from M/s Keysight and M/s Agmatel. This training program was part of the Hybrid Mini Colloquia (MQ) on “History, Prospect and Future of Graphene based Devices and Systems" scheduled during October11-19,2022

Uganda Pic 2

The department of electronic and communication engineering, ISBAT University, Kampala, Uganda, celebrated the 75th anniversary of the transistor during Orientation for Fresher’s (Fall-2022) 


IIT Kanpur 75th anniv2IIT Kanpur 75th anniv3IIT Kanpur 75th anniv1

A workshop to celebrate the "75th anniversary of Transistors" organized by IEEE EDS IIT Kanpur Chapter


Interim Chair -EDS Nigerian Chapter and a cross section of students from the Rivers State University, during the IEEE Nigeria Section Q4 Technical and Administrative Meeting (TAM) held on the 5th of November 2022 at the University’s Amphi-theatre in Port Harcourt, celebrating the 75th anniversary of the transistor. 

Rochester Academy of Science

Rochester Academy of Science session celebrated 75 years of BJT by showing to attendees how Apollo 11 guidance chip was designed and made using BJTs