Permanent historical factsheet

Point-Contact Transistor Demonstration

United States of America · Science / Technology. Chronological records rendered directly from the World History Database.

1Records
1947Date range
1Named people
1Places

Chronological records

1947

John Bardeen23 December 1947

Murray Hill · Science / Technology

With Walter Brattain, demonstrates transistor amplification using controlled electron and hole transport in germanium.

Names involved

John Bardeen

Provenance

This factsheet is generated from stored World History Database records matching the country, broad category, detailed category and exact Event value shown above. Duplicate display records are collapsed; database wording is otherwise preserved. Source provenance varies by record, so formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.