Like transistors and computer chips, integrated circuits (ICs) are encased (hermetically sealed) by packages to keep safe the inner chip’s circuitry from tangible impairment and from any kind of defilement like moisture and dust.
For allowing convenient handling and assembly onto printed circuit boards and for keeping safe the devices from any possible damage, integrated circuits are implanted to protective packages. There are a huge number of various types of packages are available. Some of these types have ascertained measurements and endurance which are registered with trade industry associations like Pro Electron and JEDEC. Just one or two manufacturers might make the other types which are proprietary designations. Prior to testing and shipping devices to the customers, integrated circuit packaging is the final assembly method.
Other than these, the IC package also aids with redistributing the Input & output of the chips circuitry to a user-friendly component size for use by its end user, along with allowing a structure more congenial to standardization, allowing a fervent heat course away from the chip, providing safeguard from the likelihood of errors because of alpha particles and other various radiations, and providing a composition that more conveniently allows electrical experiment and burn-in by the chip’s maker.
The IC package may also be effective to connect more than one IC both directly to one another utilizing standard interconnection technologies like wire bonding, and indirectly utilizing interconnection pathways available on the package such as those used in hybrid IC packages and multi-chip modules (MCMs).
The packages also make it simpler to install the ICs in different types of equipment, as every package comprises leads which may be either plugged into corresponding sockets or plugged into mounting frames. Various types of materials are used to manufacture IC packages.
Dual in-line package (known as DIP or DIL) is one of the most common among many kinds of IC packages with distinguishable measures, mounting styles, and/or pin-enumerations. In terms of microelectronics, a package of electronic components which has two parallel lines of electrical connecting pins and cased in a rectangular housing is known as dual in-line package. It can be either inserted in a socket or through-hole ascended to a printed circuit board. In 1964, Don Forbes, Bryant Rogers and Rex Rice invented the dual-inline ordination at Fairchild Research & Development. It was during that period, when the limited number of leads obtainable on circular transistor-style packages became a restriction in the application of integrated circuits. Additional signal and power supply leads are needed by the more and more complex circuits (according to the Rent’s rule); in the end, microprocessors and analogous complicated devices needed leads to a greater extent than could be put on a DIP package, which leads to the development of highly dense packages. Moreover, rectangular & square packages made it effortless to route printed-circuit traces underneath the packages.
A DIP is generally mentioned as a DIPn, where n is the aggregate number of pins. We can say for example, a DIP14 microcircuit package would consist of two rows of seven vertical leads. Most common DIP packages have four (lowest) to 64 (at most). Numerous digital and analog IC types are attainable in DIP package forms.