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A ball grid array (BGA) is a type of surface-mount packaging (a chip carrier) used for integrated circuits. BGA packages are used to permanently mount devices such as microprocessors . A BGA can provide more interconnection pins than can be put on a dual in-line or flat package .
Low-profile fine-pitch ball grid array : A square or rectangular array of solder balls on one surface, ball spacing typically 0.8 mm Micro ball grid array ( μBGA ): Ball spacing less than 1 mm Thin fine-pitch ball grid array ( TFBGA ): A square or rectangular array of solder balls on one surface, ball spacing typically 0.5 mm
Embedded wafer level ball grid array (eWLB) is a packaging technology for integrated circuits. The package interconnects are applied on an artificial wafer made of silicon chips and a casting compound. Principle eWLB. eWLB is a further development of the classical wafer level ball grid array technology (WLB or WLP: wafer level package). The ...
However, industry leaders Intel and AMD transitioned in the 2000s from PGA packages to land grid array (LGA) packages. [8] Ball grid array (BGA) packages have existed since the 1970s, but evolved into flip-chip ball grid array (FCBGA) packages in the 1990s. FCBGA packages allow for much higher pin count than any existing package types.
The die may be mounted on an interposer upon which pads or balls are formed, like with flip chip ball grid array (BGA) packaging, or the pads may be etched or printed directly onto the silicon wafer, resulting in a package very close to the size of the silicon die: such a package is called a wafer-level package (WLP) or a wafer-level chip-scale ...
A coined solder ball is a solder ball subject to coining, i.e., flattening to a shape resembling that of a coin, to increase contact reliability. [ 3 ] Ball grid array , chip-scale package , and flip chip packages generally use solder balls.
Ball grid arrays (BGA) and chip scale packages (CSA) present special difficulties for testing and rework, as they have many small, closely spaced pads on their underside which are connected to matching pads on the PCB. Connecting pins are not accessible from the top for testing, and cannot be desoldered without heating the whole device to the ...
The substrate can have a Ball Grid Array (BGA) on its underside. The substrate makes the connections to the die available for use by the PCB. [ 11 ] Substates made with build up film such as Ajinomoto Build up Film (ABF), are manufactured around a core, and the film is stacked on the core in layers by vacuum lamination at high temperatures.