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Wafer fabrication is a procedure composed of many repeated sequential processes to produce complete electrical or photonic circuits on semiconductor wafers in a semiconductor device fabrication process. Examples include production of radio frequency amplifiers, LEDs, optical computer components, and microprocessors for computers. Wafer ...
Fan-out wafer-level packaging: Variation of WLCSP. Like a BGA package but with the interposer built directly atop the die and encapsulated alongside it. eWLB: Embedded wafer level ball grid array: Variation of WLCSP. MICRO SMD-Chip-size package (CSP) developed by National Semiconductor [21] COB: Chip on board: Bare die supplied without a package.
In electronics, a wafer (also called a slice or substrate) [1] is a thin slice of semiconductor, such as a crystalline silicon (c-Si, silicium), used for the fabrication of integrated circuits and, in photovoltaics, to manufacture solar cells. The wafer serves as the substrate for microelectronic devices built in and upon
A wafer-level package attached to a printed-circuit board. 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 ...
Electronic components are built on two semiconductor wafers. One wafer is diced; the singulated dice are aligned and bonded onto die sites of the second wafer. As in the wafer-on-wafer method, thinning and TSV creation are performed either before or after bonding. Additional die may be added to the stacks before dicing. [22] Wafer-to-Wafer
A diagram of the semiconductor oxide transistors made by Frosch and Derick in 1957 [24]. In 1955, Carl Frosch and Lincoln Derick, working at Bell Telephone Laboratories, accidentally grew a layer of silicon dioxide over the silicon wafer, for which they observed surface passivation effects.
Roughly saying, digital IC design can be divided into three parts. Electronic system-level design: This step creates the user functional specification. The user may use a variety of languages and tools to create this description. Examples include a C/C++ model, VHDL, SystemC, SystemVerilog Transaction Level Models, Simulink, and MATLAB.
wafer-to-wafer (also wafer-on-wafer) stacking – bonding and integrating whole processed wafers atop one another before dicing the stack into dies wire bonding – using tiny wires to interconnect an IC or other semiconductor device with its package (see also thermocompression bonding, flip chip, hybrid bonding, etc.)