Introduction to LIC

1. Introduction to Linear Integrated
Circuits
Dr.S.Periyanayagi
Professor & Head
Ramco Institute of Technology

2. Integrated Circuits
 Integrated circuit (IC), also called microelectronic circuit.
 Microchip, or chip, an assembly of electronic components,
fabricated as a single unit, in which miniaturized active
devices (e.g., transistors and diodes) and passive devices
(e.g., capacitors and resistors) and their interconnections
are built up on a thin substrate of semiconductor material

3. Contd…
 A single silicon chip can contain a few devices or many
thousands of devices.
 Large and complex circuits can be reduced to a small size
by IC technology

4. Advantages of ICs
 Small Size
 Improved performance
 Low cost
 high reliability and ruggedness
 Low power consumption
 Less Vulnerability to parameter variations
 Easy troubleshooting by replacement
 Simpler design and standard packaging
 Increased operating speed

5. Disadvantages of ICs
 Due to small size, when the current is increased dissipation
of power is more
 Coils, inductors and transformers cannot be produced in IC
form.

6. Classification of ICs
 Based on Circuit complexity
 Based on Manufacturing Process
 Based on Devices
 Based on Types of signals processed
 Based on Type of packaging of IC
 Based on Temperature range of operation

7. Classification of ICs
Integrated
Circuits
Monolithic
circuits
Bipolar
PN
Junction
Isolation
Dielectric
Isolation
Unipolar
MOSFET JFET FinFET
Hybrid
circuits

8. Based on Type of packaging of IC
 Top Hat (TO) Package
 Dual In –Line Package (DIP)
 Dual –In – Line Plastic Package
 Leadless Chip Carrier (LCC)
 Plastic leaded chip carrier (PLCC)
 Plastic Quad Flat Pack (PQFP)
 Plastic Pin Grid Array Package (PPGA)