The Ceramic Leadless Chip Carrier (CLCC or LCC) is a square or rectangular surface-mount ceramic chip package that has no leads, but uses metal pads for contact and comes in both socket mount and surface mount varieties.
For electrical connection to the outside world, the LCC instead uses flat metal contacts (or metallized castellations) known as pads around the four sides of the package bottom.
Typical LCC’s have pad counts that range from 8 to 84, although LCC’s with 100 or more pads do exist. An LCC’s pad pitch (distance between pads) is typically either 50 mils or 40 mils.
The LCC can either be directly soldered onto the PCB or operated using a socket.
Also see Chip Carrier, and Leadless Chip Carrier (or LCC)
Ceramic Leadless Chip Carrier (LCC or CLCC