Integrated Circuits

Integrated circuits


Leadframe and Laminate

Small Outline Package (SOP)

Small outline package (SOP) is a type of surface-mount integrated circuit (IC) package. It is characterized by a rectangular body with leads that are arranged in a single row on one side of the package. The leads are typically 0.65 mm (0.026 in) in pitch. 

Other types of SOP packages include:

  • SSOP (Shrink Small Outline Package): This is a smaller version of the SOP package with a lead pitch of 0.65 mm (0.026 in).
  • TSSOP (Thin Shrink Small Outline Package): This is an even smaller version of the SOP package with a lead pitch of 0.50 mm (0.020 in).
  • MSOP (Mini Small Outline Package): This is a larger version of the SOP package with a lead pitch of 1.00 mm (0.039 in).
  • QSOP (Quarter Small Outline Package): This is a smaller version of the SOP package with a lead count of 8-16

SOP packages are used in a wide range of applications, including consumer electronics, telecommunications, and automotive. They are a popular choice for ICs that require a small form factor and low cost.

Some of the advantages of SOP packages:

  • Small form factor: SOP packages are much smaller than DIP packages, which makes them ideal for space-constrained applications.
  • Low cost: SOP packages are relatively inexpensive to manufacture, which makes them a cost-effective option for mass production.
  • Easy to solder: SOP packages are easy to solder using surface-mount soldering techniques.

Some disadvantages of SOP packages:

  • Heat dissipation: SOP packages are not as good at dissipating heat as DIP packages, which can be a problem for high-power ICs.
  • Lead reliability: The leads of SOP packages are more prone to damage than the leads of DIP packages, which can lead to reliability issues.

Overall, SOP packages are a versatile and cost-effective option for surface-mount ICs. They are a good choice for applications where size and cost are important considerations.

SOIC belongs to the SOP package family. The small outline integrated circuit (SOIC) is a surface-mounted integrated circuit (IC) package which occupies an area about 30–50% less than an equivalent dual in-line package (DIP), with a typical thickness being 70% less. They are generally available in the same pin-outs as their counterpart DIP ICs. The convention for naming the package is SOIC or SO followed by the number of pins. For example, a 14-pin 4011 would be housed in an SOIC-14 or SO-14 package.

SOIC packages are commonly used for logic, memory, and power management ICs. They are also used in some analog and RF applications.

Die attach for leadframe Small Outline Integrated Circuits


  • QMI 519
  • 8302

Non Conductive

  • 8900NCM
  • QMI 536NB
  • 2025D

Hysol Huawei Epoxy Mold Compounds for High-Reliability SOP

LINQSOL EMC-7142 for SOP Reliability Test Results