Abstract: A dielectric material incorporating a graded carbon adhesion layer whereby the content of C increases with layer thickness and a multiphase ultra low k dielectric comprising a porous SiCOH dielectric material having a k less than 2.7 and a modulus of elasticity greater than 7 GPa is described. A semiconductor integrated circuit incorporating the above dielectric material in interconnect wiring is described and a semiconductor integrated circuit incorporating the above multiphase ultra low k dielectric in a gate stack spacer of a FET is described.

Abstract: A first PECVD process incorporating a silicon oxide precursor alone and then with an organo-silicon precursor with increasing flow while the flow of the silicon oxide precursor is reduced to zero provides a graded carbon adhesion layer whereby the content of C increases with layer thickness and a second PECVD process incorporating an organo-silicon precursor including an organic porogen provides a multiphase ultra-low k dielectric. The multiphase ultra-low k PECVD process uses high frequency radio frequency power just above plasma initiation in a PECVD chamber. An energy post treatment is also provided. A porous SiCOH dielectric material having a k less than 2.7 and a modulus of elasticity greater than 7 GPa is formed.

Abstract: A low dielectric constant, thermally stable hydrogenated oxidized silicon carbon film which can be used as an interconnect dielectric in IC chips is disclosed. Also disclosed is a method for fabricating a thermally stable hydrogenated oxidized silicon carbon low dielectric constant film utilizing a plasma enhanced chemical vapor deposition technique. Electronic devices containing insulating layers of thermally stable hydrogenated oxidized silicon carbon low dielectric constant materials that are prepared by the method are further disclosed. To enable the fabrication of thermally stable hydrogenated oxidized silicon carbon low dielectric constant film, specific precursor materials having a ring structure are preferred.

Abstract: A low dielectric constant, thermally stable hydrogenated oxidized silicon carbon film which can be used as an interconnect dielectric in IC chips is disclosed. Also disclosed is a method for fabricating a thermally stable hydrogenated oxidized silicon carbon low dielectric constant film utilizing a plasma enhanced chemical vapor deposition technique. Electronic devices containing insulating layers of thermally stable hydrogenated oxidized silicon carbon low dielectric constant materials that are prepared by the method are further disclosed. To enable the fabrication of thermally stable hydrogenated oxidized silicon carbon low dielectric constant film, specific precursor materials having a ring structure are preferred.

Abstract: A method for providing regions of substantially lower fluorine content in a fluorine containing dielectric is described incorporating exposing a region to ultraviolet radiation and annealing at an elevated temperature to remove partially disrupted fluorine from the region. The invention overcomes the problem of fluorine from a fluorine containing dielectric reacting with other materials while maintaining a bulk dielectric material of sufficiently high or original fluorine content to maintain an effective low dielectric constant in semiconductor chip wiring interconnect structures.

Abstract: A low dielectric constant, thermally stable hydrogenated oxidized silicon carbon film which can be used as an interconnect dielectric in IC chips is disclosed. Also disclosed is a method for fabricating a thermally stable hydrogenated oxidized silicon carbon low dielectric constant film utilizing a plasma enhanced chemical vapor deposition technique. Electronic devices containing insulating layers of thermally stable hydrogenated oxidized silicon carbon low dielectric constant materials that are prepared by the method are further disclosed. To enable the fabrication of thermally stable hydrogenated oxidized silicon carbon low dielectric constant film, specific precursor materials having a ring structure are preferred.

Abstract: A lithographic structure and method of fabrication and use thereof having a plurality of layers at least one of which is a an RCHX layer which comprises a material having structural formula R:C:H:X, wherein R is selected from the group consisting of Si, Ge, B, Sn, Fe, Ti and combinations thereof and wherein X is not present or is selected from the group consisting of one or more of O, N, S, and F and a layer of an energy active material. The RCHX layers are useful as hardmask layers, anti-reflection layers and hardmask anti-reflection layers. The RCHX layer can be vapor-deposited and patterned by patterning the energy active material and transferring the pattern to the RCHX layer.

Abstract: A low dielectric constant, thermally stable hydrogenated oxidized silicon carbon film which can be used as an interconnect dielectric in IC chips is disclosed. Also disclosed is a method for fabricating a thermally stable hydrogenated oxidized silicon carbon low dielectric constant film utilizing a plasma enhanced chemical vapor deposition technique. Electronic devices containing insulating layers of thermally stable hydrogenated oxidized silicon carbon low dielectric constant materials that are prepared by the method are further disclosed. To enable the fabrication of thermally stable hydrogenated oxidized silicon carbon low dielectric constant film, specific precursor materials having a ring structure are preferred.

Abstract: A method for providing regions of substantially lower fluorine content in a fluorine containing dielectric is described incorporating exposing a region to ultraviolet radiation and annealing at an elevated temperature to remove partially disrupted fluorine from the region. The invention overcomes the problem of fluorine from a fluorine containing dielectric reacting with other materials while maintaining a bulk dielectric material of sufficiently high or original fluorine content to maintain an effective low dielectric constant in semiconductor chip wiring interconnect structures.

Abstract: A low dielectric constant, multiphase material which can be used as an interconnect dielectric in IC chips is disclosed. Also disclosed is a method for fabricating a multiphase low dielectric constant film utilizing a plasma enhanced chemical vapor deposition technique. Electronic devices containing insulating layers of the multiphase low dielectric constant materials that are prepared by the method are further disclosed.

Abstract: The present invention relates to lithographic methods for forming a dual relief pattern in a substrate, and the application of such methods to fabricating multilevel interconnect structures in semiconductor chips by a Dual Damascene process in which dual relief cavities formed in a dielectric are filled with conductive material to form the wiring and via levels. The invention comprises a twice patterned single mask layer Dual Damascene process modified by the addition of an easy-to-integrate sidewall liner to protect organic interlevel and intralevel dielectrics from potential damage induced by photoresist stripping steps during lithographic rework. The invention further comprises a method for forming a dual pattern hard mask which may be used to form dual relief cavities for use in Dual Damascene processing, said dual pattern hard mask comprising a first set of one or more layers with a first pattern, and a second set of one or more layers with a second pattern.

Abstract: A method for providing regions of substantially lower fluorine content in a fluorine containing dielectric is described incorporating exposing a region to ultraviolet radiation and annealing at an elevated temperature to remove partially disrupted fluorine from the region. The invention overcomes the problem of fluorine from a fluorine containing dielectric reacting with other materials while maintaining a bulk dielectric material of sufficiently high or original fluorine content to maintain an effective low dielectric constant in semiconductor chip wiring interconnect structures.

Abstract: A low dielectric constant, multiphase material which can be used as an interconnect dielectric in IC chips is disclosed. Also disclosed is a method for fabricating a multiphase low dielectric constant film utilizing a plasma enhanced chemical vapor deposition technique. Electronic devices containing insulating layers of the multiphase low dielectric constant materials that are prepared by the method are further disclosed.

Abstract: Disclosed is vapor deposited BARC and method of preparing tunable and removable antireflective coatings based on amorphous carbon films. These films can be hydrogenated, fluorinated, nitrogenated carbon films. Such films have an index of refraction and an extinction coefficient tunable from about 1.4 to about 2.1 and from about 0.1 to about 0.6, respectively, at UV and DUV wavelengths, in particular 365, 248 and 193 nm. Moreover, the films produced by the present invention can be deposited over device topography with high conformality, and they are etchable by oxygen and/or a fluoride ion etch process. Because of their unique properties, these films can be used to form a tunable and removable antireflective coating at UV and DUV wavelengths to produce near zero reflectance at the resist/BARC coating interface. This BARC greatly improves performance of semiconductor chips.

Abstract: A low dielectric constant, multiphase material which can be used as an interconnect dielectric in IC chips is disclosed. Also disclosed is a method for fabricating a multiphase low dielectric constant film utilizing a plasma enhanced chemical vapor deposition technique. Electronic devices containing insulating layers of the multiphase low dielectric constant materials that are prepared by the method are further disclosed.

Abstract: A low dielectric constant, multiphase material which can be used as an interconnect dielectric in IC chips is disclosed. Also disclosed is a method for fabricating a multiphase low dielectric constant film utilizing a plasma enhanced chemical vapor deposition technique. Electronic devices containing insulating layers of the multiphase low dielectric constant materials that are prepared by the method are further disclosed.

Abstract: A method for providing regions of substantially lower fluorine content in a fluorine containing dielectric is described incorporating exposing a region to ultraviolet radiation and annealing at an elevated temperature to remove partially disrupted fluorine from the region. The invention overcomes the problem of fluorine from a fluorine containing dielectric reacting with other materials while maintaining a bulk dielectric material of sufficiently high or original fluorine content to maintain an effective low dielectric constant in semiconductor chip wiring interconnect structures.

Abstract: A method for fabricating a thermally stable carbon-based low dielectric constant film such as a hydrogenated amorphous carbon film or a diamond-like carbon film in a parallel plate chemical vapor deposition process utilizing plasma enhanced chemical vapor deposition process is disclosed. Electronic devices containing insulating layers of thermally stable carbon-based low dielectric constant materials that are prepared by the method are further disclosed. In order to render the carbon-based low dielectric constant film thermally stable, i.e., at a temperature of at least 400° C., the films are heat treated at a temperature of not less than 350° C. for at least 0.5 hour. To enable the fabrication of thermally stable carbon-based low dielectric constant film, specific precursor materials such as cyclic hydrocarbons should be used, for instance, cyclohexane or benzene.

Abstract: A lithographic structure and method of fabrication and use thereof having a plurality of layers at least one of which is a an RCHX layer which comprises a material having structural formula R:C:H:X, wherein R is selected from the group consisting of Si, Ge, B, Sn, Fe, Ti and combinations thereof and wherein X is not present or is selected from the group consisting of one or more of O, N, S, and F and a layer of an energy active material. The RCHX layers are useful as hardmask layers, anti-reflection layers and hardmask anti-reflection layers. The RCHX layer can be vapor-deposited and patterned by patterning the energy active material and transferring the pattern to the RCHX layer.

Abstract: An amorphous fluorinated carbon film for use as a dielectric insulating layer in electrical devices is formed from a fluorinated cyclic hydrocarbon precursor. The precursor may be selected from the group consisting of hexafluorobenzene, 1,2-diethynyltetrafluorobenzene and 1,4-bis(trifluoromethyl) benzene. The film is deposited by a radiation or beam assisted deposition technique such as an ion beam assisted deposition method, a laser assisted deposition method, or a plasma assisted chemical vapor deposition method. The film is thermally stable in non-oxidizing environment at temperatures up to 400° C. and has a low dielectric constant of less than 3.0. The film can be suitably used as an insulator for spacing apart conductors in an interconnect structure.