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The mold forms part of the package. COF: Chip-on-flex: Variation of COB, where a chip is mounted directly to a flex circuit. Unlike COB, it may not use wires nor be covered with epoxy, using underfill instead. TAB: Tape-automated bonding: Variation of COF, where a flip chip is mounted directly to a flex circuit without the use of bonding wires ...
As used by DEC, the term described a proprietary way to package electronic circuitry which was used for central processing units, peripheral controllers, and many other digital or analog electronic products produced by the company. The first flip-chip modules mated with single-sided 18-contact card edge connectors with contacts on 1/8 inch ...
The chip can be mounted either on the top or the bottom (the pinned side). Connections can be made either by wire bonding or through flip chip mounting. Typically, PGA packages use wire bonding when the chip is mounted on the pinned side, and flip chip construction when the chip is on the top side.
Flip chip, also known as controlled collapse chip connection or its abbreviation, C4, [1] is a method for interconnecting dies such as semiconductor devices, IC chips, integrated passive devices and microelectromechanical systems (MEMS), to external circuitry with solder bumps that have been deposited onto the chip pads.
A modern example of multi-chip integrated circuit packages would be certain models of microprocessor, which may include separate dies for such things as cache memory within the same package. In a technique called flip chip, digital integrated circuit dies are inverted and soldered to a module carrier, for assembly into large systems. [8]
Fan-in WLCSP packages have an interposer that is the same size as that of the die, where as fan-out WLCSP packages have an interposer that is larger than the die, similar to conventional BGA packages, the difference being that the interposer is built directly atop the die, instead of the die being attached to it and reflowed using the flip chip ...
A ceramic multi-chip module containing four POWER5 processor dies (center) and four 36 MB L3 cache dies (periphery). A multi-chip module (MCM) is generically an electronic assembly (such as a package with a number of conductor terminals or "pins") where multiple integrated circuits (ICs or "chips"), semiconductor dies and/or other discrete components are integrated, usually onto a unifying ...
Cost is a factor in selection of integrated circuit packaging. Typically, an inexpensive plastic package can dissipate heat up to 2W, which is sufficient for many simple applications, though a similar ceramic package can dissipate up to 50W in the same scenario. [1] As the chips inside the package get smaller and faster, they also tend to get ...