摘要:
An integrated circuit and method of making the integrated circuit. Air gaps are formed between surfaces of current-conducting lines that face one another and dielectric material disposed between these surfaces of the current-conducting lines. A liner material is applied to these surfaces of the current-conducting lines and, after the dielectric material is introduced between the current-conducting lines, the liner material is removed, for example by etching, leaving air gaps between the current-conducting lines and the dielectric material. These air gaps eliminate or greatly reduce the effect of capacitive currents across the dielectric material between the current-conducting lines.
摘要:
By providing a photoresist material with a protective polymer layer during the etching of an organic anti-reflective coating, undue damage to the photoresist material can be avoided during opening of the anti-reflective coating without the need for an oxidant. The preferred polymer chemistry system for producing such a result includes a fluorohydrocarbon-containing polymer mixture with a strong source of CF3, preferably C2F6. The etchant also includes a source of hydrogen selected from CH3F, C2HF5, or CH2F2, and a diluent selected from Ar, He or N2.
摘要翻译:在蚀刻有机抗反射涂层期间通过提供具有保护性聚合物层的光致抗蚀剂材料,可以在打开抗反射涂层期间避免对光致抗蚀剂材料的过度损坏而不需要氧化剂。 用于产生这种结果的优选聚合物化学体系包括具有强的CF 3源,优选C 2 F 6的含氟代烃的聚合物混合物。 蚀刻剂还包括选自CH 3 F,C 2 H 5或CH 2 F 2的氢源和选自Ar,He或N 2的稀释剂。
摘要:
The etch depth during trench over via etch of a dual damascene structure in a dielectric film stack is controlled to be the same over the dense area and the open area of a substrate and solve micro-loading problems. The trench etch process is adapted to include a forward micro-loading etching process and a reverse micro-loading etching process using two etch chemistries together with the inclusion of a dopant material layer or an organic fill material layer during the deposition of the dielectric film stack. In one embodiment, etching of trenches over vias is switched from forward micro-loading to reverse micro-loading once etching of the dielectric film stack is reached at a predetermined location of a dopant material layer. In another embodiment, etching of an organic trench filling material layer is performed in a reverse micro-loading process followed by etching the dielectric film stack in a forward micro-loading process.
摘要:
Methods are provided for depositing a dielectric material for use as an anti-reflective coating and sacrificial dielectric material in damascene formation. In one aspect, a process is provided for processing a substrate including depositing an acidic dielectric layer on the substrate by reacting an oxygen-containing organosilicon compound and an acidic compound, depositing a photoresist material on the acidic dielectric layer, and patterning the photoresist layer. The acidic dielectric layer may be used as a sacrificial layer in forming a feature definition by etching a partial feature definition, depositing the acidic dielectric material, etching the remainder of the feature definition, and then removing the acidic dielectric material to form a feature definition.
摘要:
In one aspect, a method is provided which includes (1) providing a substrate including a photoresist layer and an additional layer which may be a potential source of contaminants, and (2) preventing a release of contaminants from the additional layer, wherein preventing the release of contaminants from the additional layer protects the photoresist layer from exposure to contaminants from the additional layer. Numerous other aspects are provided.
摘要:
A method of forming recesses in a substrate such as a capacitor so as to increase the surface area thereof and therefore the charge storage capacity of the capacitor. This is accomplished by utilizing a micro mask formed by agglomeration on the surface of the substrate. The agglomerated material, such as gold, titanium nitride or titanium silicide, is used as a mask for selectively etching the substrate to form recesses therein. Alternatively, an oxide transfer mask can be utilized with the agglomerated material micro mask to etch the substrate.
摘要:
Methods for etching a dielectric barrier layer with high selectivity to a dielectric bulk insulating layer and/or a hardmask layer in a dual damascene structure are provided. In one embodiment, the method includes providing a substrate having a portion of a dielectric barrier layer exposed through a dielectric bulk insulating layer in an etch reactor, flowing a gas mixture containing SiF4 gas into the reactor, and etching the exposed portion of the dielectric barrier layer selectively to the dielectric bulk insulating layer using a plasma formed from the gas mixture.
摘要:
A method of forming a semiconductor structure may include forming a semiconductor substrate having an array region and a support region, forming a semiconductor substrate and a gate stack over the support region of the substrate and applying a critical mask over the support region and the array region. The critical mask may have a first opening at an area corresponding to the array region and a second opening at an area corresponding to the support region. Contact holes may be formed in a glass layer at areas corresponding to the first and second opening. After removing the critical mask, a first blockout mask may be applied over the array region and a first conductive type dopant may be added to exposed polysilicon corresponding to openings of the blockout mask or gate contacts may be formed.
摘要:
A method is provided that includes (1) receiving information about a substrate processed within a low K dielectric deposition subsystem from an integrated inspection system of the low K dielectric deposition subsystem; (2) determining an etch process to perform within an etch subsystem based at least in part on the information received from the inspection system of the low K dielectric deposition subsystem; and (3) directing the etch subsystem to etch at least one low K dielectric layer on the substrate based on the etch process. Other methods, systems, apparatus, data structures and computer program products are provided.
摘要:
A self-aligned dielectric spacer is etched by providing capped gate structure along a second layer of dielectric material located above the gate cap material. Dopant material at an increased doping level is provided in the second layer of dielectric material where the self-aligned spacer is to be located. The second layer of dielectric material is then etched selective to the dopant to define the self-aligned dielectric spacer.