IC Packages
Types of IC Packages
For the protection of ICs from external environment and to provide mechanical protection and terminals for electrical connections, various types of packages are used. Several standard packages in general use are shown in figure.
Types of IC Packages
The metal can type of container provides electromagnetic shielding for the IC chip which cannot be provided by plastic or ceramic packages. The plastic dual-in-line package is much cheaper than other types of packages and is widely employed for general industrial and consumer applications where high temperatures are not met with. Ceramic or metal containers are used where ICs are subjected to high temperatures. Dual-in-line and flat packages are more convenient for circuit board use than are cans, because of their lead arrangement and because they are flatter and permit greater circuit densities. Large ICs like microprocessor units are packed in the dual-in line type of package with perhaps 40 connecting pins.
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