Yes, the DB3 chip comes in a patch package. Patch package is the electronic components attached to the substrate, connected by welding circuit, compared with the traditional pin package has the characteristics of small size, high speed, low power loss, anti-interference and high reliability. In modern electronic technology, patch packaging is widely used in the manufacture of electronic components such as integrated circuits and passive components. Therefore, the DB3 chip also has a variety of sizes and types of patch packaging styles to adapt to the needs of different scenarios and applications.