摘要:
Provided is a method for creating a mask blank that include a stop layer. The stop layer is optically compatible and process compatible with other layers included as part of the mask blanks. Such blanks may include EUV, phase-shifting, or OMOG masks. The stop layer includes molybdenum, silicon, and nitride in a proportion that allows for compatibility and aids in detection by a residual gas analyzer. Provided is also a method for the patterning of mask blanks with a stop layer, particularly the method for removing semi-transparent residue defects that may occur due to problems in prior mask creation steps. The method involves the detect of included materials with a residual gas analyzer. Provided is also a mask blank structure which incorporates the compatible stop layer.
摘要:
Provided is a method for creating a mask blank that include a stop layer. The stop layer is optically compatible and process compatible with other layers included as part of the mask blanks. Such blanks may include EUV, phase-shifting, or OMOG masks. The stop layer includes molybdenum, silicon, and nitride in a proportion that allows for compatibility and aids in detection by a residual gas analyzer. Provided is also a method for the patterning of mask blanks with a stop layer, particularly the method for removing semi-transparent residue defects that may occur due to problems in prior mask creation steps. The method involves the detect of included materials with a residual gas analyzer. Provided is also a mask blank structure which incorporates the compatible stop layer.
摘要:
An apparatus for mounting a pellicle onto a mask is provided. In one embodiment, the apparatus comprises a base provided with a track; a dummy plate holder coupled to the base, the dummy plate holder for receiving a dummy plate having an elevated portion on one side thereof; a mask holder for receiving a mask, the mask holder slidably coupled to the base; a pellicle holder for receiving a pellicle frame, the pellicle holder slidably coupled to the base; and drive means being adapted to drive the pellicle holder along the track towards the dummy plate holder, wherein during operation when the pellicle frame is mounted onto the mask causing the mask to contact the dummy plate, the mounting pressure in the mask is distributed by way of the elevated portion in the dummy plate, thus reducing distortion in the mask.
摘要:
A phase-shifting mask is fabricated using two separate exposure processes. The mask includes a substrate and a device pattern area above the substrate. The mask has a mask pattern defining boundaries of the device pattern area and an administrative pattern area defining boundaries of the mask pattern.