Patent ID: 7789576

Claim:
A lithography exposure apparatus, comprising: an exposure module designed for exposure processing; a baking module embedded in the exposure module and designed for post exposure baking (PEB) wherein the baking module comprises a plurality of baking plates; and a control module designed to control the exposure module and the baking module, wherein: the control module includes a plurality of exposure recipes, each being tuned and associated with one of the plurality of baking plates in the baking module; the control module is designed capable of assigning one of the plurality of baking plates to a wafer; and the control module is designed capable of utilizing the exposure recipe tuned and associated with the one of the plurality of baking plates assigned to the wafer for the exposure processing to the wafer assigned to the one of the plurality of baking plates in such a way that compensation is provided for variations from one baking plate to another of the plurality of baking plates.