LTCC

1
LTCC The Future of Ceramic Packaging
NEW APPLICATIONS

• Bluetooth - 2.45 GHz
• Handsets - 1 to 2 GHz
• Optical transceivers - 40GHz
• Sensors - 20 to 76 GHz
• Satellite comms - 20 to 40 GHz
• Automotive wireless
• Radar systems - 10 GHz

2
Why LTCC ?
Motorola Satellite Series Integrated Receiver
Low Noise Amplifier selected for cover photo of
1999 special issue, devoted to LTCC, of the IMAPS
(International Microelectronics Packaging
Society) magazine
3
Bluetooth Technology Driver
Connecting Cell Phones to Computers Bluetooth
Transceivers Need to be Extremely Small, and
Exceedingly Inexpensive
RF Integrated LTCC Modules
High- frequency Performance Circuit
Integration Superior Thermal Performance Hermetici
ty High reliability Low-Cost
4
Co-sintering Issues

• Chemical and physical interactions between the
  components
• could reduce performance

• Sintering stresses that could cause defects
• To measure thermo-mechanical response of LTCC
  and Ag systems
• by isothermal cyclic loading dilatometry
  (ICLD)
• To evaluate thermo-mechanical, physical and
  chemical
• incompatibility of LTCC/Ag systems

Research Objectives
5
Effect of mismatched sintering
kinetics on camber
Ag/LTCC Bilayer
6
Mechanical response by Cyclic Loading
Dilatometry
The viscosity of a porous sintering compact can
be determined by cyclic loading dilatometry
? f (?,T)
Thermo Mechanical Analyzer