Patent ID: 6727029
Filing Date: 2004-04-27
Classification: G03F

Abstract:
A reticle for storing a mask with reduced particle contamination comprising:a base plate formed of an optically transparent material capable of surviving a service temperature of at least 50Â° C., said base plate having a recessed slot in a top surface enclosing an area that is at least an area of a mask formed on said base plate; an adhesive partially filling said recessed slot in said top surface of the base plate such that a top surface of said adhesive is at least 0.5 mm below said top surface of the base plate; a pellicle frame mounted in said recessed slot with a bottom end of said pellicle frame encapsulated in said adhesive and a top end extending vertically away from said top surface of the base plate; and a film covering said top end of the pellicle frame forming a hermetically sealed chamber cavity between said pellicle frame, said top surface of the base plate and said film for keeping said mask formed in a substantially particle-free environment on said top surface of the base plate.