It is a Presentation on one of the important inventions in the field of Electronics and Communications. A Brief information on History and present technology in the advancements of Transistor is embedded. It is just a ppt for presenting about inventions. Detailed working of BJT's is not mentioned.

1. TRANSISTOR
THE SAGA
By~
Bharath Naidu CH
bharathtoday@gmail.com

2. A LEGENDARY INVENTION BY THE
LEGENDARY HEROES
William
Shockley
Brattain,
Walter
Houser
John
Bardeen

3. The first point contact transistor
made by the Shockley team at Bell
Labs in 1947.
DOB : December 16,
1947

4. The idea……?

5. • Atomic physics formed the roots for all the early inventions in the field of
Electronics.
• Classification of materials: 1. Conductors
2. Semi Conductors
3. Insulators
• Elements we use in manufacturing of semiconductors
• Ge and Si are elemental Semi conductors
II III IV V VI
B C
Al Si P S
Zn Ga Ge Ar Se
Cd In Sb Te
Bi

6. • Is back to back connection of two diodes will give a
transistor?

7. NO!

8. • Classification:
1. BJT
 NPN
 PNP
2. FET
 JFET
 N- Channel
 P- Channel
 MOSFET
 N MOS
CMOS
 P MOS

9. Transistor or Transfer of
Resistance ?
How
?

10. Gordon E. Moore and his
Law:

11. 2D to

12. A major Breakthrough and historic innovation by Intel
• World's first 3-D transistors in mass production.
• 22nm microprocessor -- code-named Ivy Bridge
-- that will be the first high-volume chip to use
3-D transistors.
• The transition to 3-D continues the pace of
technology advancement, fueling Moore's Law
for years to come.
• An unprecedented combination of performance
improvement and power reduction to enable
new innovations across a range of future 22nm-
based devices from the smallest handhelds to

14. Key objectives in Transistor Design:
• Maximum current in On state
• Minimum current in Off state
• Fast switching between On and Off
states

15. Happy Engineers day in advance!
Bharath.CH
ECE.