TECHNOLOGY

The History of PZT

The history of PZT

1st Generation (1880 ~ 1940) : classical applied piezoelectricity used by Quartz

1880
1880 ~ 1882 : Pierre Curie discovered Piezoelectric Phenomenon
1917
First World War
1920
The first application of transducer submarine used by Quartz

Traditional application age (1920 ~ 1940)

1940
Resonator / Microphone / Accelerometer / Ultrasonic / transduer / Signal filter

- Limited material and device efficiency limitation
- Commercial stage

2nd Generation : Applied piezoelectricity used by piezoelectirc ceramic

1940
Second World War

- American center after the war
- Secret and repletion about a technology
- Material and device production in the some companies

1940
~ 1965
The advent of piezoelectric ceramic simple manufacturing process, high quality
1965
Japan ceramic period ~ 1980

- The serveral companies are material and dee vise development by competitive cooperation relation from development eary
- Commercialization success in Japan

1980
1980 ~ global application

- Device development liveliness which use piezoelectric ceramic worldside

3rd Generation : Super high performance piezoelectric material

1990
Oncoming generation super high performance piezoelectric material is developing recently

The history of Single crystal

1980
PZN-PT (1981, Kuwata)
1989
PMN-PT (1989, Shrout)

- Because flux thickened, cannot extend the size
- Commercial application is unavailable
- Cannot attrac any attention

1998
Dr. Sang Ku Lee made the first announcement of PMN-PT Single Crystal Growth used by Bridgman Law (Appl, Phys.)
2000
Office of Naval Research had started to support research of single crystal field Research of single crystal is going on lively the entire world
2001
Ultrasonic probe for heart used by PMN-PT was developed and ezhibited at the first of the world 1inch growth first success (iBULe)
2002
2inch growth first success (iBULe)
2003
3inch growth first success (iBULe)
2005
Phillps world first whisker probe sale opening