Crystal Packages

Description

Crystal packages are a type of electronic package used in the semiconductor industry to house and protect quartz crystal resonators, which are used in electronic devices such as oscillators, clocks, and filters. Crystal packages are designed to provide a hermetic seal to protect the crystal resonator from external elements such as moisture, dust, and mechanical stress, while also providing electrical connectivity to the resonator.

Crystal packages typically consist of a metal can, which serves as the body of the package and provides mechanical protection and shielding for the crystal resonator, and a ceramic or glass insulator, which separates the crystal resonator from the metal can and provides electrical insulation. The metal can is typically made of a non-magnetic material, such as stainless steel or Kovar, to minimize the effect of external magnetic fields on the crystal resonator.

The crystal resonator is mounted on a support structure inside the package and connected to the external leads through wire bonding or other interconnect methods. The external leads are typically either through-hole or surface mount, depending on the specific application.

Crystal packages are available in various sizes and shapes, each with different electrical and mechanical characteristics to suit different applications. They are also available with different levels of hermeticity, ranging from standard commercial-grade packages to high-reliability military-grade packages.

Overall, crystal packages play a critical role in protecting and ensuring the reliable operation of quartz crystal resonators in electronic devices, making them a vital component in the semiconductor industry.

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