摘要:
A method of irradiating to pattern a photosensitive layer such as a resist (L2) immersed in a fluid (L3), involves applying a removable transparent layer (L4, L5), projecting the radiation onto the resist through the immersion fluid and through the transparent layer, such that imperfections in the fluid are out of focus as projected on the surface, and subsequently removing the transparent layer. The transparent layer can help distance such imperfections from the focus of the radiation on the surface and so can reduce or eliminate shadowing. Hence the irradiation can be more complete, and defects reduced. It can be particularly effective for imperfections in the form of small bubbles or particles in the immersion fluid especially at the fluid/surface interface for example. The radiation can be for any purpose including inspection, processing, patterning and so on. The removal of the transparent layer can be combined with a step of developing the resist layer.
摘要:
A method of irradiating to pattern a photosensitive layer such as a resist (L2) immersed in a fluid (L3), involves applying a removable transparent layer (L4, L5), projecting the radiation onto the resist through the immersion fluid and through the transparent layer, such that imperfections in the fluid are out of focus as projected on the surface, and subsequently removing the transparent layer. The transparent layer can help distance such imperfections from the focus of the radiation on the surface and so can reduce or eliminate shadowing. Hence the irradiation can be more complete, and defects reduced. It can be particularly effective for imperfections in the form of small bubbles or particles in the immersion fluid especially at the fluid/surface interface for example. The radiation can be for any purpose including inspection, processing, patterning and so on. The removal of the transparent layer can be combined with a step of developing the resist layer.
摘要:
For determining best process variables (E, F, W) setting that provide optimum process window for a lithographic process for printing features having critical dimensions (CD) use is made of an overall performance characterizing parameter (Cpk) and of an analytical model, which describes CD data as a function of process parameters, like exposure dose (E) and focus (F). This allows calculating of the average value (μCD) and the variance (σCD) of the statistical CD distribution (CDd) and to determine the highest Cpk value and the associated values of process parameters, which values provide the optimum process window.
摘要:
For lithographically manufacturing a device with a very high density, a design mask pattern (120) is distributed on a number of sub-patterns (120a, 120b, 120c) by means of a new method. The sub-patterns do not comprise “forbidden” structures (135) and can be transferred by conventional apparatus to a substrate layer to be patterned. For the transfer, a new stack of layers is used, which comprise a pair of a processing layer (22; 26) and an inorganic anti-reflection layer (24; 28) for each sub-pattern. After a first processing layer (26) has been patterned with a first sub-pattern, it is coated with a new resist layer (30) which is exposed with a second sub-pattern, and a second processing layer (22) under the first processing layer is processed with the second sub-pattern.
摘要:
For lithographically manufacturing a device with a very high density, a design mask pattern (120) is distributed on a number of sub-patterns (120a, 120b, 120c) by means of a new method. The sub-patterns do not comprise “forbidden” structures (135) and can be transferred by conventional apparatus to a substrate layer to be patterned. For the transfer, a new stack of layers is used, which comprise a pair of a processing layer (22; 26) and an inorganic anti-reflection layer (24; 28) for each sub-pattern. After a first processing layer (26) has been patterned with a first sub-pattern, it is coated with a new resist layer (30) which is exposed with a second sub-pattern, and a second processing layer (22) under the first processing layer is processed with the second sub-pattern.
摘要:
For lithographically manufacturing a device with a very high density, a design mask pattern (120) is distributed on a number of sub-patterns (120a, 120b, 120c) by means of a new method. The sub-patterns do not comprise “forbidden” structures (135) and can be transferred by conventional apparatus to a substrate layer to be patterned. For the transfer, a new stack of layers is used, which comprise a pair of a processing layer (22; 26) and an inorganic anti-reflection layer (24; 28) for each sub-pattern. After a first processing layer (26) has been patterned with a first sub-pattern, it is coated with a new resist layer (30) which is exposed with a second sub-pattern, and a second processing layer (22) under the first processing layer is processed with the second sub-pattern.
摘要:
The invention relates to a method of manufacturing a semiconductor device comprising the step of removing a silicon and nitrogen containing material by means of wet etching with an aqueous solution comprising hydrofluoric acid in a low concentration, the aqueous solution being applied under elevated pressure to reach a temperature above 100° C.
摘要:
A microphone comprises a substrate (20), a microphone membrane (10) defining an acoustic input surface and a backplate (11) supported with respect to the membrane with a fixed spacing between the backplate (11) and the membrane (10). A microphone periphery area comprises parallel corrugations (24) in the membrane (10) and backplate (11). By using the same corrugated suspension for both the membrane and the backplate, the sensitivity to body noise is optimally suppressed.
摘要:
A point of presence with data collecting means (24; 43) arranged for collecting predetermined data and having a first output for outputting said predetermined data at a first transmission rate, the point of presence having forwarding means (22, 28(1), 28(2); 44) with a forwarding means output for outputting data to a dedicated telecommunication network (8) at a second transmission rate differing from said first transmission rate, said point of presence also having feedback means (26(1), 26(2), 26(3), 26(4); 46, 48; 46, 48, 26(5), 52) having a feedback input and a feedback output, said feedback means being arranged to receive said predetermined data at said first transmission rate from said data collecting means (24; 43), said forwarding means (22, 28(1), 28(2); 44) being connected to said feedback output for receiving said predetermined data and forwarding these predetermined data to said dedicated telecommunication network (8) at said second transmission rate.
摘要:
The invention relates to a method of manufacturing a semiconductor device, comprising the provision of a substrate with a layer of silicon thereon, an inorganic anti-reflective layer applied to the layer of silicon, and a resist mask applied to the inorganic anti-reflective layer, which method comprises the steps of: patterning the inorganic anti-reflective layer by means of the resist mask, patterning the layer of silicon, removing the resist mask, and removing the inorganic anti-reflective layer by means of etching with an aqueous solution comprising hydrofluoric acid in a low concentration, which aqueous solution is applied at a high temperature.