Students at Leipzig University receive a student ID in the form of a chip card at the start of their studies. This is their UniCard. Upon presentation of a valid ID card, the UniCard will be issued to the student (or to an authorised person acting on the student's behalf). It is only valid with a current semester imprint. You must get this from a validation station after receiving the UniCard, and renew it every semester. The UniCard combines many functions: you can pay without using cash in the cafeterias and mensas of the Leipzig Student Services, it serves as a photocopy card and library card, and as proof of payment of the semester ticket (MDV-Vollticket).
After your removal from the register of students (Exmatrikulation) the UniCard will lose its functions as a student identity card. You can turn in your UniCard and apply for the refund of the deposit within two semesters after removal from register. However, this is not compulsory.