摘要:
In forming a layer of a semiconductor wafer (100), a dielectric layer is deposited on the semiconductor wafer. The dielectric layer (208) includes material having a low dielectric constant. Recessed (210) and non-recessed (211) areas are formed in the dielectric layer. A metal layer is deposited on the dielectric layer to fill the recessed areas and cover the non-recessed areas. The metal layer is then electropolished to remove the metal layer covering the non-recessed areas while maintaining the metal layer in the recessed areas.
摘要:
A method of forming a feature in a porous low-K dielectric layer is provided. A porous low-K dielectric layer is placed over a substrate. A patterned photoresist mask is placed over the porous low-K dielectric layer. A feature is etched into the porous low-K dielectric layer. A protective layer is deposited over the feature after the etching the feature. The patterned photoresist mask is stripped, so that part of the protective layer is removed, where protective walls formed from the protective layer remain in the feature.
摘要:
A semiconductor device fabrication method includes the steps of (a) forming a dielectric film on a semiconductor substrate; (b) etching the dielectric film by a dry process; and (c) supplying thermally decomposed atomic hydrogen onto the semiconductor substrate under a prescribed temperature condition, to remove a damaged layer produced in the semiconductor substrate due to the dry process.
摘要:
A method of forming a connection hole, which includes the steps of: laminating an etching stopper film made of a SiN based material and an interlayer insulating film made of a SiOx based material on a substrate in this order; forming an organic film pattern on the interlayer insulating film on the basis of a connection hole pattern; dry-etching the interlayer insulating film using the organic film pattern as a mask while keeping a selection ratio to the etching stopper film; a fourth step of removing a carbon based protective film which is deposited on an exposed surface of the etching stopper film by the dry etching, using an etching reactive system including an oxygen based chemical species; and a fifth step of completing a connection hole by selectively etching the etching stopper film.
摘要:
In the case in which a film for a resist is formed by spin coating, there is a resist material to be wasted, and the process of edge cleaning is added as required. Further, when a thin film is formed on a substrate using a vacuum apparatus, a special apparatus or equipment to evacuate the inside of a chamber vacuum is necessary, which increases manufacturing cost. The invention is characterized by including: a step of forming conductive layers on a substrate having a dielectric surface in a selective manner with a CVD method, an evaporation method, or a sputtering method; a step of discharging a compound to form resist masks so as to come into contact with the conductive layer; a step of etching the conductive layers with plasma generating means using the resist masks under the atmospheric pressure or a pressure close to the atmospheric pressure; and a step of ashing the resist masks with the plasma generating means under the atmospheric pressure or a pressure close to the atmospheric pressure. With the above-mentioned characteristics, efficiency in use of a material is improved, and a reduction in manufacturing cost is realized.
摘要:
L'invention concerne un circuit intégré comprenant un substrat semiconducteur dans lequel des zones actives entourent ou sont entourées par des évidements remplis d'isolant, et dans lequel une région conductrice est noyée dans l'isolant d'au moins un évidement, la région conductrice étant connectée à une tension de référence et étant connectée à au moins un élément voisin du circuit.
摘要:
The present invention provides a resist-removing solution for low-k film and a cleaning solution for via holes or capacitors, the solutions comprising hydrogen fluoride (HF) and at least one member selected from the group consisting of organic acids and organic solvents. The invention also provides a method of removing resist and a method of cleaning via holes or capacitors by the use of the solutions.
摘要:
The present invention relates to a method for the production of airgaps in a semiconductor device. The formation of airgaps is based on chemically and/or mechanically changing the properties of sidewalls of a hole in a first dielectric layer locally, such that the sidewalls of the hole in said first dielectric layer are converted and become etchable by a first etching substance.
摘要:
Zur Herstellung von Metall/Metall-Kontakten im Rahmen einer Mehrlagenmetallisierung in einer integrierten Schaltung auf einer Halbleiterscheibe wird nach dem Aufbringen einer Isolationsschicht auf einer Metallebene ein Lithographieschritt mit einer Fotolackmaske zur Definition von Kontaktlöchern auf der Isolationsschicht und anschließend ein anisotropes Ätzen der Isolationsschicht zur Erzeugung der Kontaktlöcher ausgeführt. Dann wird in einem Vakuum nacheinander eine chemische Trockenätzung zur Beseitigung der Fotolackmaske und ein chemisch-physikalisches Trockenätzen zum Beseitigen vom beim chemischen Trockenätzen sich anlagernder organischer Verunreinigungen in einem Vakuum durchgeführt, um anschließend eine Metallabscheidung zur Kontaktlochauffüllung vorzunehmen.