Did You Know #3 | The Birth of the Transistor: Shockley’s Solitary Journey


Volume 8

INTRODUCTION:

January and February of 1948 were pivotal months in the history of electronics, particularly in the realm of transistors. William Shockley, a brilliant physicist and member of the Bell Labs team, embarked on a solitary path to create a revolutionary device that would reshape the world. As we delve into the events of those months, we witness the struggles, revelations, and the growing tension among the team members—Bardeen, Brattain, and Shockley—as the foundation of the transistor was laid.

A SOLITARY NEW YEAR’S EVE:

While the world celebrated the arrival of the New Year, William Shockley found himself alone in a hotel room in Chicago. Amidst the festive atmosphere downstairs, he dedicated himself to his work, engrossed in ideas for a new transistor. Sketching page after page, Shockley envisioned a three-layered “sandwich” of semiconductors that could potentially act like a vacuum tube. Although the concept was not fully realized, the seed of innovation had been planted.

THE EUREKA MOMENT:

On that fateful morning of January 23, as the world was still asleep, Shockley experienced a revelation. Inspired by his earlier “sandwich” idea, he conceived a three-layered transistor design that could control current flow with precision. This breakthrough happened in isolation, as Shockley chose not to share his ideas until he had solid proof. The physics behind his amplifier design was distinct from Bardeen and Brattain’s point-junction transistor, and he wanted to validate its feasibility before unveiling it to his colleagues. The brilliant conception of the junction transistor first appeared in a patent application on June 26, 1948 which was issued in September 1951.

VALIDATION AND TENSION:

February 18 marked a turning point. Shockley’s colleagues, Joseph Becker and John Shive, presented findings that confirmed the possibility of current flowing directly through a semiconductor’s bulk. This revelation provided the empirical evidence Shockley needed to support his design. Excitedly, he revealed his concept of the sandwich transistor to the team, leaving Bardeen and Brattain stunned by the realization that Shockley had kept this breakthrough to himself for weeks. The divide between the three inventors grew wider, adding fuel to the already simmering tensions within the team.

CONCLUSION:

The months of January and February 1948 witnessed the emergence of a new era in electronics, as William Shockley embarked on his solitary journey to create an improved transistor design. His “sandwich” concept and the subsequent validation of current flow through semiconductors laid the groundwork for a technological revolution. However, the widening gap between Shockley and his colleagues Bardeen and Brattain foreshadowed the challenges that lay ahead on the path to the transistor’s ultimate realization. Little did they know that their contributions would shape the course of history and pave the way for the modern digital age.