摘要:
There is provided a cleaning method for removing a first deposit, formed on an upper electrode through an etching of a metal layer containing a metal, by using a plasma generated between a lower electrode of a lower structure and the upper electrode in a processing chamber of a plasma processing apparatus. The method includes a step of colliding ions with the first deposit formed on the upper electrode and a step of removing a second deposit, which is generated by said colliding and formed on the lower structure. Further, a cycle including the step of colliding and the step of removing is repeated multiple times.
摘要:
A process of exposing a substrate to oxygen plasma while heating the substrate; and a cycle process, in which the substrate is exposed to an atmosphere of a mixture gas of a hydrogen fluoride gas and an alcohol gas, and a first period during which a total pressure of the mixture gas or a partial pressure of the alcohol gas is set to be a first total pressure or a partial pressure of the alcohol gas and a second period during which the total pressure of the mixture gas or the partial pressure of the alcohol gas is set to be a second total pressure lower than the first total pressure or a partial pressure of the alcohol gas lower than the partial pressure of the alcohol gas are repeated multiple cycles, are performed. In the cycle process, the mixture gas is supplied to the substrate from a region facing the substrate, and a supply amount of the mixture gas per a unit area from a circular first region including a central portion of the substrate is set to be larger than a supply amount of the mixture gas per a unit area from a second region outside the first region.
摘要:
An etching method of etching a periodic pattern formed by self-assembling a first polymer and a second polymer of a block copolymer that is capable of being self-assembled includes introducing a gas into a processing chamber; setting a frequency of a high frequency power supply such that a great amount of ion energy is distributed within a range smaller than ion energy for generating an etching yield of the first polymer and equal to or larger than ion energy for generating an etching yield of the second polymer, and supplying the high frequency power into the processing chamber from the high frequency power supply; generating plasma from the gas introduced in the processing chamber by applying the high frequency power; and etching the periodic pattern on a processing target object mounted on a susceptor 16 by using the generated plasma.
摘要:
There is provided a substrate processing method capable of increasing an etching rate of a copper member without using a halogen gas. A Cu layer 40 having a smoothened surface 50 is obtained, and then, a processing gas produced by adding a methane gas to a hydrogen gas is introduced into an inner space of a processing chamber 15. Plasma is generated from this processing gas. In the inner space of the processing chamber 15, there exist oxygen radicals 52 generated when an oxide layer 42 is etched, and carbon radicals 53 generated from methane. The oxygen radicals 52 and the carbon radicals 53 are compounded to generate an organic acid, and the organic acid makes a reaction with copper atoms of the Cu layer 40. As a result, a complex of the organic acid having the copper atoms is generated, and the generated organic acid complex is vaporized.
摘要:
A method for recovering a shape of patterns, formed on a silicon substrate by etching, by removing foreign substances grown between the patterns is provided. The method includes heating the silicon substrate accommodated in a chamber to a temperature of about 160°C or higher.
摘要:
A method of processing a substrate that enables the amount removed of a surface damaged layer to be controlled easily, and enable a decrease in wiring reliability to be prevented. A surface damaged layer having a reduced carbon concentration of a carbon-containing low dielectric constant insulating film on a substrate is exposed to an atmosphere of a mixed gas containing ammonia and hydrogen fluoride under a predetermined pressure. The surface damaged layer that has been exposed to the atmosphere of the mixed gas is heated to a predetermined temperature.