摘要:
A method for depositing a conformal film on a substrate in a plasma processing chamber of a plasma processing system, the substrate being disposed on a chuck, the chuck being coupled to a cooling apparatus, is disclosed. The method includes flowing a first gas mixture into the plasma processing chamber at a first pressure, wherein the first gas mixture includes at least carbon, and wherein the first gas mixture has a condensation temperature. The method also includes cooling the chuck below the condensation temperature using the cooling apparatus thereby allowing at least some of the first gas mixture to condense on a surface of the substrate. The method further includes venting the first gas mixture from the processing chamber; flowing a second gas mixture into the plasma processing chamber, the second gas mixture being different in composition from the first gas mixture; and striking a plasma to form the conformal film.
摘要:
A method for forming a feature in an etch layer is provided. A photoresist layer is formed over the etch layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls. A control layer is formed over the photoresist layer and bottoms of the photoresist features. A conformal layer is deposited over the sidewalls of the photoresist features and control layer to reduce the critical dimensions of the photoresist features. Openings in the control layer are opened with a control layer breakthrough chemistry. Features are etched into the etch layer with an etch chemistry, which is different from the control layer break through chemistry, wherein the control layer is more etch resistant to the etch with the etch chemistry than the conformal layer.
摘要:
A method for forming a feature in an etch layer is provided. A photoresist layer is formed over the etch layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls. A control layer is formed over the photoresist layer and bottoms of the photoresist features. A conformal layer is deposited over the sidewalls of the photoresist features and control layer to reduce the critical dimensions of the photoresist features. Openings in the control layer are opened with a control layer breakthrough chemistry. Features are etched into the etch layer with an etch chemistry, which is different from the control layer break through chemistry, wherein the control layer is more etch resistant to the etch with the etch chemistry than the conformal layer.
摘要:
A method for etching an etch layer disposed over a substrate and below an antireflective coating (ARC) layer and a patterned organic mask with mask features is provided. The substrate is placed in a process chamber. The ARC layer is opened. An oxide spacer deposition layer is formed. The oxide spacer deposition layer on the organic mask is partially removed, where at least the top portion of the oxide spacer deposition layer is removed. The organic mask and the ARC layer are removed by etching. The etch layer is etched through the sidewalls of the oxide spacer deposition layer. The substrate is removed from the process chamber.
摘要:
A method providing features in a dielectric layer is provided. A sacrificial layer is formed over the dielectric layer. A set of sacrificial layer features is etched into the sacrificial layer. A first set of dielectric layer features is etched into the dielectric layer through the sacrificial layer. The first set of dielectric layer features and the set of sacrificial layer features are filled with a filler material. The sacrificial layer is removed. The widths of the spaces between the parts of the filler material are shrunk with a shrink sidewall deposition. A second set of dielectric layer features is etched into the dielectric layer through the shrink sidewall deposition. The filler material and shrink sidewall deposition are removed.
摘要:
A method for forming semiconductor devices is provided. A gate stack is formed over a surface of a substrate. A plurality of cycles for forming polymer spacers on sides of the gate stack is provided, where each cycle comprises providing a deposition phase that deposits material on the sides of the polymer spacer and over the surface of the substrate, and providing a cleaning phase that removes polymer over the surface of the substrate and shapes a profile of the deposited material. Dopant is implanted into the substrate using the polymer spacers as a dopant mask. The polymer spacers are removed.
摘要:
A method for forming semiconductor devices is provided. A gate stack is formed over a surface of a substrate. A plurality of cycles for forming polymer spacers on sides of the gate stack is provided, where each cycle comprises providing a deposition phase that deposits material on the sides of the polymer spacer and over the surface of the substrate, and providing a cleaning phase that removes polymer over the surface of the substrate and shapes a profile of the deposited material. Dopant is implanted into the substrate using the polymer spacers as a dopant mask. The polymer spacers are removed.
摘要:
A method for forming dual damascene features in a dielectric layer. Vias are partially etched in the dielectric layer. A trench pattern mask is formed over the dielectric layer. Trenches are partially etched in the dielectric layer. The trench pattern mask is stripped. The dielectric layer is further etched to complete etch the vias and the trenches in the dielectric layer.
摘要:
A method for providing features in an etch layer with a memory region and a peripheral region is provided. A memory patterned mask is formed over a first sacrificial layer. A first set of sacrificial layer features is etched into the first sacrificial layer and a second sacrificial layer. Features of the first set of sacrificial layer features are filled with filler material. The first sacrificial layer is removed. The spaces are shrunk with a shrink sidewall deposition. A second set of sacrificial layer features is etched into the second sacrificial layer. The filler material and shrink sidewall deposition are removed. A peripheral patterned mask is formed over the memory region and peripheral region. The second sacrificial layer is etched through the peripheral patterned mask. The peripheral patterned mask is removed. Features are etched into the etch layer from the second sacrificial layer.
摘要:
A method for etching features in an etch layer disposed below a mask on a process wafer is provided. A hydrocarbon based glue layer is deposited. The etch layer on the process wafer is etched with at least one cycle, wherein each cycle comprises depositing a hydrofluorocarbon layer over the mask and on the hydrocarbon based glue layer, wherein the hydrocarbon based glue layer increases adhesion of the hydrofluorocarbon layer and etching the etch layer.