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The Bipolar junction transister was invented in 1947 at Bell Labs. This was actually the first successfully constructed semiconductor device. But the theory and idea for semiconductors went back to the mid 1920's, and the first patent for a semiconductor device was issued in about 1936 to Julius Lilienfeld.
What else can I help you with?
What was invented First the train or the car?
The first train was invented in 1814,and the first car was invented in 1672. So, the car was first invented.
When was the first vehicle invented invented?
The wright brothers invented the first airoplane
Where invented the first plane?
Where invented the first plane?
Who invented the first hygrometer?
Who invented the first hygrometer?
Who invented the first stagecoach?
Who invented the first stagecoach?
When the first computer was invented not a calculating device and who invented it?
first computer was invented by Chals Babeje. It invented in 1938
When was the first scooter invented?
the first scooter was invented in 1985
Where was the first ship invented?
The first Ship was invented in Greek
When was the first robot invented?
The first robot was invented in 1921.
When was the first PS3 invented?
The first PS3 was invented in 2008.
When was the first boat invented?
The first boat invented was in 4000BC.
Who invented the first Xbox?
Microsoft invented the first xbox
