摘要:
Methods of depositing amorphous carbon films on substrates are provided herein. The methods reduce or prevent plasma-induced charge damage to the substrates from the deposition of the amorphous carbon films. In one aspect, an initiation layer of amorphous carbon is deposited at a low RF power level and/or at a low hydrocarbon compound/inert gas flow rate ratio before a bulk layer of amorphous carbon is deposited. After the deposition of the initiation layer, the RF power, hydrocarbon flow rate, and inert gas flow rate may be ramped to final values for the deposition of the bulk layer, wherein the RF power ramp rate is typically greater than the ramp rates of the hydrocarbon compound and of the inert gas. In another aspect, a method of minimizing plasma-induced charge damage includes depositing a seasoning layer on one or more interior surfaces of a chamber before the deposition of the amorphous carbon film on a substrate therein or coating the interior surfaces with an oxide or dielectric layer during manufacturing.
摘要:
Unwanted hillocks arising in copper layers due to formation of overlying barrier layers may be significantly reduced by optimizing various process parameters, alone or in combination. A first set of process parameters may be controlled to pre-condition the processing chamber in which the barrier layer is deposited. A second set of process parameters may be controlled to minimize energy to which a copper layer is exposed during removal of CuO prior to barrier deposition. A third set of process parameters may be controlled to minimize the thermal budget after removal of the copper oxide.
摘要:
Methods for reducing plasma instability for plasma depositing a dielectric layer are provided. In one embodiment, the method includes providing a substrate in a plasma processing chamber, flowing a gas mixture into the chamber, applying an RF power to an electrode to form a plasma in the chamber, and collecting DC bias information. In another embodiment, the method for plasma processing includes obtaining of DC bias information over a plurality of plasma generation events, and determining an RF power application parameter from the DC bias information.
摘要:
Methods for low temperature deposition an amorphous carbon film with improved step coverage are provided. In one embodiment, the method includes providing a substrate in a process chamber, flowing a gas mixture including at least a hydrocarbon compound and an inert gas into the process chamber, wherein the hydrocarbon compound has greater than 5 carbon atoms, maintaining the substrate temperature at a range below 450 degrees Celsius, and depositing an amorphous carbon film on the substrate.
摘要:
Methods are provided for depositing a dielectric material. The dielectric material may be used for an anti-reflective coating or as a hardmask. In one aspect, a method is provided for processing a substrate including introducing a processing gas comprising a silane-based compound and an oxygen and carbon containing compound to the processing chamber and reacting the processing gas to deposit a nitrogen-free dielectric material on the substrate. The dielectric material comprises silicon and oxygen. In another aspect, the dielectric material forms one or both layers in a dual layer anti-reflective coating.
摘要:
A method and apparatus for depositing organosilicate dielectric layers having good adhesion properties and low dielectric constant. Embodiments are described in which layers are deposited at low temperature and at high temperature. The low temperature layers are generally post-treated, whereas the high temperature layers need no post treating. Adhesion of the layers is promoted by use of an initiation layer.
摘要:
A method and structure for the fabrication of semiconductor devices having feature sizes in the range of 90 nm and smaller is provided. In one embodiment of the invention, a method is provided for processing a substrate including depositing an anti-reflective coating layer on a surface of the substrate, depositing an adhesion promotion layer on the anti-reflective coating layer, and depositing a resist material on the adhesion promotion layer. In another embodiment of the invention, a semiconductor substrate structure is provided including a dielectric substrate, an amorphous carbon layer deposited on the dielectric layer, an anti-reflective coating layer deposited on the amorphous carbon layer, an adhesion promotion layer deposited on the anti-reflective coating layer, and a resist material deposited on the adhesion promotion layer.
摘要:
The present invention provides semiconductor device formed by an in situ plasma reducing process to reduce oxides or other contaminants, using a compound of nitrogen and hydrogen, typically ammonia, at relatively low temperatures prior to depositing a subsequent layer thereon. The adhesion characteristics of the layers are improved and oxygen presence is reduced compared to the typical physical sputter cleaning process of an oxide layer. This process may be particularly useful for the complex requirements of a dual damascene structure, especially with copper applications.
摘要:
Methods are provided for forming a structure that includes an air gap. In one embodiment, a method is provided for forming a damascene structure comprises depositing a porous low dielectric constant layer by a method including reacting an organosilicon compound and a porogen-providing precursor, depositing a porogen-containing material, and removing at least a portion of the porogen-containing material, depositing an organic layer on the porous low dielectric constant layer by reacting the porogen-providing precursor, forming a feature definition in the organic layer and the porous low dielectric constant layer, filing the feature definition with a conductive material therein, depositing a mask layer on the organic layer and the conductive material disposed in the feature definition, forming apertures in the mask layer to expose the organic layer, removing a portion or all of the organic layer through the apertures, and forming an air gap adjacent the conductive material.
摘要:
The present invention generally provides an apparatus and method for eliminating the “first wafer effect” for plasma enhanced chemical vapor deposition (PECVD). One embodiment of the present invention provides a method for preparing a chamber after the chamber being idle for a period of time. The method comprises a cleaning step followed by a season step and a heating step adapted to the length of the idle time.