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Science & Medicine

Julius Edgar Lilienfeld

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Who

Julius Edgar Lilienfeld · Science & Medicine

What

Patented the field-effect transistor concept in the 1920s, decades before Bell Labs

When

1882, Lemberg, Austria-Hungary (now Lviv, Ukraine) — 1963, Charlotte Amalie, U.S. Virgin Islands

Where

Austria-Hungary · Germany · United States

Biography

Julius Edgar Lilienfeld is recognized among Jewish contributors to Science & Medicine — Patented the field-effect transistor concept in the 1920s, decades before Bell Labs

How & why

Julius Edgar Lilienfeld was a physicist who, in patents filed in the 1920s and 1930s, first described the field-effect transistor principle — controlling current in a semiconductor with an electric field — decades before Bell Labs' 1947 transistor. Born into a Jewish family in Lemberg, he later emigrated to the United States. His prescient patents are now recognized as foundational to modern electronics.

Sources & external links

Verify and go deeper with these external references.

Source: Jinfo.org — Jews in Physics

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Contributions & Sources

Patented the field-effect transistor concept in the 1920s, decades before Bell Labs

1925

Source: Jinfo.org — Jews in Physics