Mitsubishi Denki Kabushiki Kaisha

Renesas Electronics Corporation

Renesas Technology Corp.

Tetsuro Hanawa

Maria Op De Beeck

Takeo Ishibashi

Teruhiko Kumada

Takuya Hagiwara

Akira Tokui

Hiroshi Koezuka

Hideo Horibe

Shigeru Kubota

Toshifumi Suganaga

Youko Tanaka

Maria O De Beeck

Atsuko Sasahara

The present invention makes it possible to improve the reliability of a semiconductor device. In a manufacturing method of a semiconductor device according to an embodiment, when a resist pattern is formed over a cap insulating film comprising a silicon nitride film, the resist pattern is formed through the processes of coating, exposure, and development treatment of a chemical amplification type resist. Then the chemical amplification type resist is applied so as to directly touch the surface of the cap insulating film comprising the silicon nitride film and organic acid pretreatment is applied to the surface of the cap insulating film comprising the silicon nitride film before the coating of the chemical amplification type resist.

Manufacturing method of semiconductor device

The present invention improves the OPE characteristic generated by the difference between sparse and dense mask patterns and promotes fidelity in the design of the pattern. Because of this, the present invention includes a step of forming a resist having an acid dissociative dissolution suppression group on a substrate, a step of coating the resist with an acid polymer dissolved in an alcohol based solvent and forming an upper layer film, a step of exposing through a mask, a step of performing a baking process, and a step of processing with an alkali developer, and wherein in the step of performing a baking process, a mixing layer is formed on the resist by the upper layer film and in which a thicker mixing layer is formed in an unexposed part of a region where the pattern density of the mask pattern is high compared to a region where the pattern density is low.

Method of forming resist pattern and method of manufacturing semiconductor device

A method of producing a phase shift mask of attenuated type including a step of forming an optical proximity correction in a self-replicating manner in order to weaken side lobe lights by a first phase shift mask of attenuated type including a first pattern, according to which making of data for writing the optical proximity correction at the time of forming by an electron beam lithography system, various transfer tests and/or various optical simulations, and great amount of data for writing in the system are not necessary when the optical proximity correction which is different from in response to each pattern size and/or to each pattern arrangement.

Method of producing photo mask

When a fine pattern is formed by using a chemical-amplification-type resist film, fall of acid in the surface of the resist can be inhibited so that a fine pattern exhibiting an excellent shape is formed. A resist coating film containing a compound having a sulfonic acid group or a carbonic acid group is formed on a chemical-amplification-type resist film of a semiconductor substrate, followed by performing exposure.

Resist coating film

Methods of forming a resist pattern allow the size of the resist pattern to be controlled in its formation, and the size of the underlying substrate to be controlled in etching the same even with a step portion existing on the substrate. The methods of forming a resist pattern on a substrate by lithography use far-ultra violet light. An organic silane compound for forming an anti reflection film on the surface of a substrate includes a silicon atom, a leaving group bound to the silicon atom and replaceable with an hydroxyl group existing in the surface of the semiconductor substrate to bind covalently the semiconductor substrate and the organic silane compound, and a substituent group absorbing the far-ultra violet light. The substrate is coated with the organic silane compound. Resist is applied onto the substrate coated with the organic silane compound. The resist is exposed selectively using far-ultra violet light, and then developed.

Method of forming resist pattern and organic silane compound for forming

A resist pattern having an accurate rectangular sectional configuration and high dimension controllability can be formed using a conventional chemical amplification positive type resist. A chemical amplification positive type resist layer 3 including a base resin, and a protonic acid generating agent decomposed by photochemical reaction to generate protonic acid and a dissolution inhibitor is formed on a semiconductor substrate 2. Light 8 is selectively directed to the chemical amplification positive type resist layer 3 to form an image. The chemical amplification positive type resist layer 3 after irradiation of light 8 has its surface treated with an acid solution 1 so that the surface of the resist layer 3 includes acid. The chemical amplification positive type resist layer 3 treated with acid is baked and then developed to form a resist pattern 7.

Method of forming a critical resist pattern

An organic silane compound for forming an antireflection film on the surface of a substrate prior to forming a resist pattern includes a silicon atom, a leaving group bound to the silicon atom and capable of reacting with a hydroxyl group existing in the surface of the semiconductor substrate to form a covalent bond between the semiconductor substrate and the organic silane compound, and a substituent group capable of absorbing far-ultra violet light. The substrate is coated with the organic silane compound. Resist is applied onto the substrate coated with the organic silane compound. The resist is exposed selectively using far-ultra violet light. The resist is exposed.

A method of manufacturing semiconductor devices is provided which is improved so as to form a resist pattern even in a substrate having a step thereon with well controlled dimensional precision, and carry out etching of an underlying substrate with well controlled dimensional precision. An underlying film of an organic substance having the properties of sublimation, photo absorption and insolubility in an organic solvent is formed on a semiconductor substrate. A resist is applied onto the underlying film. Light is selectively irradiated on the resist. The resist is developed to form a resist pattern. The semiconductor substrate is etched with the resist pattern used as a mask.

Method of manufacturing semiconductor device

An apparatus for inspecting a phase shift mask includes a light source for irradiating a pattern of a phase shift mask including a light shield member and a phase member, a phase difference detector for generating from light transmitted through the phase shift mask a phase signal including the phase difference created by the phase member, a reference signal generator for generating a reference signal, and a calculation section for detecting a defect in the phase member of the phase shift mask by comparing the phase signal with the reference signal. The reference signal may be generated from a reference mask having the same pattern as that of the phase shift pattern or from CAD data for the formation of the pattern of the phase shift mask.

Growing community of inventors

Hyogo, Japan

Tetsuro Hanawa