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A grid array of solder balls on a printed circuit board after removal of an integrated circuit chip. Cross-cut section of BGA mounted circuit. A ball grid array (BGA) is a type of surface-mount packaging (a chip carrier) used for integrated circuits.
Fine-pitch ball-grid array: A square or rectangular array of solder balls on one surface [3] LBGA: Low-profile ball-grid array: Also known as laminate ball-grid array [3] TEPBGA: Thermally-enhanced plastic ball-grid array: CBGA: Ceramic ball-grid array [3] OBGA: Organic ball-grid array [3] TFBGA: Thin fine-pitch ball-grid array [3] PBGA ...
80-pin ceramic quad flat package (TQFP) – ST6 microcontroller The basic form is a flat rectangular (often square) body with leads on four sides but with numerous variation in the design. These differ usually only in lead number, pitch, dimensions, and materials used (usually to improve thermal characteristics).
The next big innovation was the area array package, which places the interconnection terminals throughout the surface area of the package, providing a greater number of connections than previous package types where only the outer perimeter is used. The first area array package was a ceramic pin grid array package. [1]
Schematic capture or schematic entry is a step in the design cycle of electronic design automation (EDA) at which the electronic diagram, or electronic schematic of the designed electronic circuit, is created by a designer. This is done interactively with the help of a schematic capture tool also known as schematic editor. [1]
They are frequently used for RAM or Flash memory ICs due to their high pin count and small volume. In some applications, they are being supplanted by ball grid array packages which can achieve even higher densities. The prime application for this technology is memory.
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A more recent design variation which allows for higher density connections is the dual row micro lead frame (DRMLF) package. This is an MLF package with two rows of lands for devices requiring up to 164 I/O. Typical applications include hard disk drives, USB controllers, and wireless LAN.