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Wafer-level packaging (WLP) is a process in integrated circuit manufacturing where packaging components are attached to an integrated circuit (IC) before the wafer – on which the IC is fabricated – is diced. In WLP, the top and bottom layers of the packaging and the solder bumps are attached to the integrated circuits while they are still ...
Advanced packaging [1] is the aggregation and interconnection of components before traditional integrated circuit packaging where a single die is packaged. Advanced packaging allows multiple devices, including electrical, mechanical, or semiconductor devices, to be merged and packaged as a single electronic device.
The steps involving testing and packaging of dies, followed by final testing of finished, packaged chips, are called the back end, [118] post-fab, [192] ATMP (Assembly, Test, Marking, and Packaging) [193] or ATP (Assembly, Test and Packaging) of semiconductor manufacturing, and may be carried out by OSAT (OutSourced Assembly and Test) companies ...
This is known as a chip-first flow. Panel level packaging uses a large panel instead of a wafer to carry out the packaging process. [6] High end fan-out packages are those with lines and spaces narrower than 8 microns. [4] Fan-out packages can also have several dies, [5] and passive components. [6]
Integrated circuit packaging is the final stage of semiconductor device fabrication, in which the die is encapsulated in a supporting case that prevents physical damage and corrosion. The case, known as a " package ", supports the electrical contacts which connect the device to a circuit board.
A semiconductor package is a metal, plastic, glass, or ceramic casing containing one or more discrete semiconductor devices or integrated circuits. Individual components are fabricated on semiconductor wafers (commonly silicon ) before being diced into die, tested, and packaged.
The process was originally introduced commercially by IBM in the 1960s for individual transistors and diodes packaged for use in their mainframe systems. [ 15 ] Ceramic subtrates for flip chip BGA were replaced with organic substrates to reduce costs and use existing PCB manufacturing techniques to produce more packages at a time by using ...
The die is glued or soldered to the die pad inside the lead frame, and then bond wires are attached between the die and the bond pads to connect the die to the leads in a process called wire bonding. In a process called encapsulation, a plastic case is moulded around the lead frame and die, exposing only the leads.