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Chip-on-glass (COG), a variation of COB, where a chip, typically a liquid crystal display (LCD) controller, is mounted directly on glass. Chip-on-wire (COW), a variation of COB, where a chip, typically a LED or RFID chip, is mounted directly on wire, thus making it a very thin and flexible wire.
It was a high-end chip set designed to integrate the performance and features of the PDP-11/70 onto a handful of chips. It was used in the PDP-11/73 , PDP-11/83 and Professional 380 . It consisted of a data path chip [ 1 ] and a control chip [ 2 ] in ceramic leadless packages mounted on a single ceramic hybrid dual inline package (DIP).
The body (housing) of a DIP containing an IC chip is usually made from molded plastic or ceramic. The hermetic nature of a ceramic housing is preferred for extremely high reliability devices. However, the vast majority of DIPs are manufactured via a thermoset molding process in which an epoxy mold compound is heated and transferred under ...
The other type of packaging used in the 1970s, called the ICP (Integrated Circuit Package), was a ceramic package (sometimes round as the transistor package), with the leads on one side, co-axially with the package axis. Commercial circuit packaging quickly moved to the dual in-line package (DIP), first in ceramic and later in plastic. [5]
Examples are integrated circuit chips in ceramic Dual In-line Package form, or complex hybrid assemblies of chip components on a ceramic base plate. This type of packaging can also be divided into two main types: multilayer ceramic packages (like LTCC and HTCC ) and pressed ceramic packages.
A leadless chip carrier (LCC) has no "leads", but instead has rounded pins through the edges of the ceramic or molded plastic package. Prototypes and devices intended for extended temperature environments are typically packaged in ceramic, while high-volume products for consumer and commercial markets are typically packaged in plastic.