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PDIP / SPDIP
The Plactic Dual In-line Package/Shrink Plastic
Dual In-line Package has a rectangular plastic
body with two rows of leads that are bent up from
the package body at a slight angle. Its most common
use is through-hole insertion mounting in applications
such as logic, processor and memory devices. QPL
also delivers IDF(Interdigitated Frame) versions
that enable more lead frames to be oriented along
a strip, resulting in increased throughput in
assembly.

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PLCC
The Plastic Leaded Clip Carrier has leads on
all four sides with J-shaped beds and is available
with a variety of pad designs, such as dual-pad.
Designs with fused leads promote better thermal
performance, while those with a closed dambar
reduce mold flash and improve the solder plating
coverage.

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QFN
The Quad Flat Non-Lead package type delivers
the small footprint and low pin count needed for
today's portable devices and high-speed application
demanding high electrical performance in a constrained
area. QFNs are miniaturized, low pin-count, perimeter-array
package that use a metallic lead frame for the
die assembly and board interconnection. This design
allows the use of standard die-attach, wire-bond
and encapsulation technologies and equipment.
QFN is a lead frame-base CSP (Chip Scale Package)
type of package with a "leadless" element
that enables superior thermal performance and
the ability to view and contact leads after assembly.

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QFP / TQFP
The Quad Flat Pack/Thin Quad Flat Pack is a plastic
package with a square or rectangular body with
leads on all four sides in a gull-wing configuration.
Designs with "dimples" (half-etched
holes) on the back side of the pad provide the
mechanical adhesion to prevent delamination. Different
pad designs exist to further enhance package reliability,
while designs with a dual-pad lead frame are available
to minimize cost.

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SO Series
The Small Outline Intergrated Circuit is available
in a number of variations, including SOP(Small
Outliine Package), SSOP(Shrink Small Outline Package),
SOJ(Small Outline J-Leaded),
TSOP(Thin Small Outline Package), and TSSOP(Thin
Shrink Small Outline Package). The SOIC package
is desirable for its small footprint on the circuit
board. SO lead frames are available in single-pad,
dual-pad and matrix designs.

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Thermal Enhanced Products
TBGA Stiffeners, heatsinks and lids are used
in TBGA packages, flip chip, EBGA packages and
leadframe based packages for thermal
management, die protection and mechanical support.
Depending on the type of IC is mounted and draws
heat from the reverse side of the die for
dissipation directly to ambient or via an attached
heatsink in heat slugs embedded in the package
assembly and serve as both heat dissipation route
and as a stiffener.

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TSOP / LOC
The Lead On Chip features lead fingers that are
attached directly to the surface of the chip using
a double-sided adhesive tape. Since there is no
die pad on the LOC lead frame, the package allows
for higher density, enabling it to accommodate
a larger IC chip and providing better reliability
performance than traditional packages. These characteristics
make LOC packaging a good choice meeting the increasing
capacity and density requirements of DRAM (Dynamic
Random Access Memory) designs.

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