摘要:
A method for etching a high aspect ratio feature through a mask into a layer to be etched over a substrate is provided. The substrate is placed in a process chamber, which is able to provide RF power at a first frequency, a second frequency different than the first frequency, and a third frequency different than the first and second frequency. An etchant gas is provided to the process chamber. A first etch step is provided, where the first frequency, the second frequency, and the third frequency are at power settings for the first etch step. A second etch step is provided, where the first frequency, the second frequency, and the third frequency are at a different power setting.
摘要:
A method for etching a high aspect ratio feature through a mask into a layer to be etched over a substrate is provided. The substrate is placed in a process chamber, which is able to provide RF power at a first frequency, a second frequency different than the first frequency, and a third frequency different than the first and second frequency. An etchant gas is provided to the process chamber. A first etch step is provided, where the first frequency, the second frequency, and the third frequency are at power settings for the first etch step. A second etch step is provided, where the first frequency, the second frequency, and the third frequency are at a different power setting.
摘要:
A method for etching a high aspect ratio feature through a mask into a layer to be etched over a substrate is provided. The substrate is placed in a process chamber, which is able to provide RF power at a first frequency, a second frequency different than the first frequency, and a third frequency different than the first and second frequency. An etchant gas is provided to the process chamber. A first etch step is provided, where the first frequency, the second frequency, and the third frequency are at power settings for the first etch step. A second etch step is provided, where the first frequency, the second frequency, and the third frequency are at a different power setting.
摘要:
A method for etching a high aspect ratio feature through a mask into a layer to be etched over a substrate is provided. The substrate is placed in a process chamber, which is able to provide RF power at a first frequency, a second frequency different than the first frequency, and a third frequency different than the first and second frequency. An etchant gas is provided to the process chamber. A first etch step is provided, where the first frequency, the second frequency, and the third frequency are at power settings for the first etch step. A second etch step is provided, where the first frequency, the second frequency, and the third frequency are at a different power setting.
摘要:
A workpiece is processed with a plasma in a vacuum plasma processing chamber by exciting the plasma at several frequencies such that the excitation of the plasma by the several frequencies simultaneously causes several different phenomena to occur in the plasma. The chamber includes central top and bottom electrodes and a peripheral top and/or bottom electrode arrangement that is either powered by RF or is connected to a reference potential by a filter arrangement that passes at least one of the plasma excitation frequencies to the exclusion of other frequencies.
摘要:
A workpiece is processed with a plasma in a vacuum plasma processing chamber by exciting the plasma at several frequencies such that the excitation of the plasma by the several frequencies simultaneously causes several different phenomena to occur in the plasma. The chamber includes central top and bottom electrodes and a peripheral top and/or bottom electrode arrangement that is either powered by RF or is connected to a reference potential by a filter arrangement that passes at least one of the plasma excitation frequencies to the exclusion of other frequencies.
摘要:
A vacuum plasma chamber for processing a workpiece includes first and second electrodes for electrical coupling with gas in the chamber and respectively connected to first and second relatively high and low frequency RF sources. The chamber includes a wall at a reference potential and a plasma confinement region spaced from the wall. A filter arrangement connected to the sources and the electrodes enables current from the first source to flow to the first electrode, prevents the substantial flow of current from the first source to the second electrode and the second source, and enables current from the second source to flow to the first and second electrodes and prevents the substantial flow of current from the second source to the first source.
摘要:
A method for opening a carbon-based hardmask layer formed on an etch layer over a substrate is provided. The hardmask layer is disposed below a patterned mask. The substrate is placed in a plasma processing chamber. The hardmask layer is opened by flowing a hardmask opening gas including a COS component into the plasma chamber, forming a plasma from the hardmask opening gas, and stopping the flow of the hardmask opening gas. The hardmask layer may be made of amorphous carbon, or made of spun-on carbon, and the hardmask opening gas may further include O2.
摘要:
A method for etching a dielectric layer over a substrate and disposed below a mask is provided. The substrate is placed in a plasma processing chamber. An etchant gas comprising O2 and a sulfur component gas comprising at least one of H2S and a compound containing at least one carbon sulfur bond is provided into the plasma chamber. A plasma is formed from the etchant gas. Features are etched into the etch layer through the photoresist mask with the plasma from the etchant gas.
摘要翻译:提供了一种用于在衬底上蚀刻介质层并且设置在掩模下方的方法。 将基板放置在等离子体处理室中。 包含O 2 2的蚀刻剂气体和包含H 2 S 2的至少一种的硫成分气体和含有至少一个碳硫键的化合物被提供到等离子体室中。 等离子体由蚀刻剂气体形成。 通过来自蚀刻剂气体的等离子体通过光致抗蚀剂掩模将特征蚀刻到蚀刻层中。
摘要:
A method for substantially reducing photoresist wiggling while etching a layer on a substrate is provided. The substrate having thereon the layer disposed below a photoresist mask is introduced into the plasma processing chamber. An etchant source gas mixture is flowed into the plasma processing chamber, where the etchant source gas mixture comprises xenon and an active etchant, where a flow rate of the xenon is at least 35% of etchant source gas mixture. A plasma is struck from the etchant source gas mixture. The layer is etched with the plasma, where the flow rate of xenon reduces photoresist wiggling.