The integrated circuits have few limitations also, as listed below:
- In an IC the various components are part of a small semi-conductor and the individual component or components cannot be removed, replaced, therefore, if any component in an IC fails, the whole IC has replaced by the new one.
- Limited power rating as it is not possible to manufacture high power greater than 10 Watt) ICs.
- Need of connecting inductors and transformers exterior to the conductor chip as it is not possible to fabricate inductors and transform on the semi-conductor chip surface.
- Operations at low voltage as ICs function at fairly low voltage.
- Quite delicate in handling as these cannot withstand rough handling or excessive heat.
- Need of connecting capacitor exterior to the semi-conductor chip as it is neither convenient nor economical to fabricate capacitances exceeding 30pF. Therefore, for higher values of capacitance, discrete components, exterior to IC chip are connected.
- High grade P-N-P assembly is not possible.
- Low temperature coefficient is difficult to be achieved.
- Difficult to fabricate an IC with low noise.
- Large value of saturation resistance of transistors.
- Voltage dependence of resistors and capacitors.
- The diffusion processes and other related procedures used in the fabrication process are not good enough to permit a precise control of the parameter values for the circuit elements. However, control of the ratios is at a sufficiently acceptable level.
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