摘要:
Selective placement of polishing dummy feature patterns, rather than indiscriminate placement of polishing dummy feature patterns, is used. Both low frequency (hundreds of microns and larger) and high frequency (10 microns and less) of topography changes are examined. The polishing dummy feature patterns can be specifically tailored to a semiconductor device and polishing conditions used in forming the semiconductor device. When designing an integrated circuit, polishing effects for the active features can be predicted. After polishing dummy feature pattern(s) are placed into the layout, the planarity can be examined on a local level (a portion but not all of the device) and a more global level (all of the device, devices corresponding to a reticle field, or even an entire wafer).
摘要:
Selective placement of polishing dummy feature patterns, rather than indiscriminate placement of polishing dummy feature patterns, is used. Both low frequency (hundreds of microns and larger) and high frequency (10 microns and less) of topography changes are examined. The polishing dummy feature patterns can be specifically tailored to a semiconductor device and polishing conditions used in forming the semiconductor device. When designing an integrated circuit, polishing effects for the active features can be predicted. After polishing dummy feature pattern(s) are placed into the layout, the planarity can be examined on a local level (a portion but not all of the device) and a more global level (all of the device, devices corresponding to a reticle field, or even an entire wafer).
摘要:
A method for making a semiconductor device is provided which comprises (a) creating a data set (301) which defines a set of tiles for a polysilicon deposition process; (b) deriving a polysilicon deposition mask set (311) from the data set, wherein the polysilicon deposition mask set includes a plurality of polysilicon tiles (303); (c) deriving an epitaxial growth mask set (321) from the data set, wherein the epitaxial growth mask set includes a plurality of epitaxial tiles (305); and (d) using the polysilicon deposition mask set and the epitaxial growth mask set to make a semiconductor device (331); wherein the epitaxial growth mask set is derived from the data set by using at least a portion of the tile pattern defined in the data set for at least a portion of the tile pattern defined in the epitaxial deposition mask set.
摘要:
A method for making a semiconductor device is provided which comprises (a) creating a data set (301) which defines a set of tiles for a polysilicon deposition process; (b) deriving a polysilicon deposition mask set (311) from the data set, wherein the polysilicon deposition mask set includes a plurality of polysilicon tiles (303); (c) deriving an epitaxial growth mask set (321) from the data set, wherein the epitaxial growth mask set includes a plurality of epitaxial tiles (305); and (d) using the polysilicon deposition mask set and the epitaxial growth mask set to make a semiconductor device (331); wherein the epitaxial growth mask set is derived from the data set by using at least a portion of the tile pattern defined in the data set for at least a portion of the tile pattern defined in the epitaxial deposition mask set.
摘要:
A method for making a semiconductor device is provided which comprises (a) creating a first data set (301) which defines a first set of tiles (303) for a trench chemical mechanical polishing (CMP) process; (b) deriving a first trench CMP mask set (307) and at least one epitaxial growth mask set (321, 331) from the first data set, wherein the at least one epitaxial growth mask set corresponds to tiles (305, 307) present on first (203) and second (207) distinct semiconductor surfaces; (c) reconfiguring the first trench CMP mask set to account for the at least one epitaxial growth mask set, thereby defining a second trench CMP mask set (308), wherein the second trench CMP mask set defines a set of trench CMP tiles; and (d) using the second trench CMP mask set to make a semiconductor device.
摘要:
A method for making a semiconductor device is provided which comprises (a) creating a first data set (301) which defines a first set of tiles (303) for a trench chemical mechanical polishing (CMP) process; (b) deriving a first trench CMP mask set (307) and a first epitaxial growth mask set (309) from the first data set, wherein the first epitaxial growth mask set is derived from the first data set by removing a subset (305) of the tiles defined by the first data set and incorporating the subset of tiles into the first epitaxial growth mask set; and (c) reconfiguring the first trench CMP mask set to account for the first epitaxial growth mask set, thereby defining a second trench CMP mask set (308).
摘要:
A method for making a semiconductor device is provided which comprises (a) creating a data set (301) which defines a set of tiles for a polysilicon deposition process; (b) deriving a polysilicon deposition mask set (311) from the data set, wherein the polysilicon deposition mask set includes a plurality of polysilicon tiles (303); (c) deriving an epitaxial growth mask set (321) from the data set, wherein the epitaxial growth mask set includes a plurality of epitaxial tiles (305); and (d) using the polysilicon deposition mask set and the epitaxial growth mask set to make a semiconductor device (331); wherein the epitaxial growth mask set is derived from the data set by using at least a portion of the tile pattern defined in the data set for at least a portion of the tile pattern defined in the epitaxial deposition mask set.
摘要:
A method for forming an integrated circuit device having dummy features and the resulting structure are disclosed. One embodiment comprises a first active feature separated from a substantially smaller second active feature by a dummy-available region void of active features. Within the dummy-available region and in close proximity to the second active feature exists a dummy feature.
摘要:
A method for making a semiconductor device is provided which comprises (a) creating a first data set (301) which defines a first set of tiles (303) for a trench chemical mechanical polishing (CMP) process; (b) deriving a first trench CMP mask set (307) and at least one epitaxial growth mask set (321, 331) from the first data set, wherein the at least one epitaxial growth mask set corresponds to tiles (305, 307) present on first (203) and second (207) distinct semiconductor surfaces; (c) reconfiguring the first trench CMP mask set to account for the at least one epitaxial growth mask set, thereby defining a second trench CMP mask set (308), wherein the second trench CMP mask set defines a set of trench CMP tiles; and (d) using the second trench CMP mask set to make a semiconductor device.
摘要:
A method for making a semiconductor device is provided which comprises (a) creating a data set (301) which defines a set of tiles for a polysilicon deposition process; (b) deriving a polysilicon deposition mask set (311) from the data set, wherein the polysilicon deposition mask set includes a plurality of polysilicon tiles (303); (c) deriving an epitaxial growth mask set (321) from the data set, wherein the epitaxial growth mask set includes a plurality of epitaxial tiles (305); and (d) using the polysilicon deposition mask set and the epitaxial growth mask set to make a semiconductor device (331); wherein the epitaxial growth mask set is derived from the data set by using at least a portion of the tile pattern defined in the data set for at least a portion of the tile pattern defined in the epitaxial deposition mask set.