KULLIYYAH OF INFORMATION AND COMMUNICATION TECHNOLOGY

KULLIYYAH OF INFORMATION AND COMMUNICATION TECHNOLOGY

Wafer

Wafer



Wafer



As you can see on the wafer, there are many small squares. These are called the dice. One ‘die’ is a chip, that is going to be embedded into the module to become a smart card. A smart card can be of two types: a memory-based smart card or microprocessor-based smart card. The interface of a smart card can be of contact, contactless or both.

The wafer is then to be mechanically sawn/cut; the process is known as wafer dicing. Each unit is called a ‘die’. Each unit is then embedded into a module, with die bonding and wire bonding processes.