Abstract:
PROBLEM TO BE SOLVED: To provide the structure of a porous low dielectric constant material thin film and related manufacturing method for solving various problems associated with the conventional technology. SOLUTION: The method of manufacturing the porous low dielectric constant material thin film includes processes of: (a) preparing a substrate; (b) conducting a first chemical vapor deposition (CVD) process, and introducing a backbone precursor into a deposition chamber to form an interfacial dielectric layer on the substrate; (c) conducting a second CVD process, introducing a porogen precursor into the deposition chamber while at the same time introducing a backbone precursor, and combining the porogen precursor with the backbone precursor to form a backbone layer containing porogen on the interfacial dielectric layer; and (d) removing the porogen out of the backbone layer to form an ultralow dielectric constant material layer having a plurality of pores. The interfacial dielectric layer and the ultralow dielectric constant material layer constitute the porous low dielectric constant material thin film. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a bevel gradient dichroic film, used in an off-axis type LCOS (liquid crystal on silicon) display device. SOLUTION: The bevel gradient dichroic film is equipped with a dichroic film having film characteristics, including gradient direction. The gradient direction depends on the incident angle of incident light so as to provide the optical characteristics that the light spots of the incident light on the dichroic film are distributed uniformly. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To enhance rubbing performance by decreasing the defects of rubbing and to prolong the lifetime of a roller and to improve the efficiency of rubbing in a rubbing process. SOLUTION: The rubbing device further has a conditioning roller, in addition to the rubbing roller, so as to promptly restore the rubbing roller in order to prolong the lifetime of the roller and to improve the efficiency of rubbing in a rubbing process. The rubbing device employs the conditioning roller in addition to the rubbing roller in such a manner, and as a result thereof, the rubbing device eventually newly includes a conditioning process for adjusting the rubbing roller in the rubbing process. The cycle time of manufacturing can be thereby shortened and productivity can be improved. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a high-performance integrated circuit, particularly an integrated circuit with air gaps that fully supports metal interconnection, for the solution of problems associated with the prior art. SOLUTION: The structure of the integrated circuit comprises: a substrate 11 with an underlayer 12; the first metallic pattern 13 formed in the underlayer; the second metallic layer 17 formed above the first metallic pattern; a supporting structure with an isotropic-etched dielectric layer 14 that supports the second metallic pattern formed between the first metallic pattern and the second metallic pattern; and multiple air gaps 18a formed in a gap in the second metallic pattern that is composed of a capping layer 19. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a self-alignment transistor, which can simplify the manufacturing process and reduce costs in the manufacturing process. SOLUTION: In the method of manufacturing a self-alignment bipolar transistor on a substrate 200 including an epitaxial layer 202, a first insulating layer 204 and a second insulating layer 206 are sequentially formed, and an opening is formed in the second insulating layer. On the sidewall of this opening, a conductive spacer 210 is formed, and using the second insulating layer and conductive spacer as a mask, the first insulating layer within the opening is removed. Then a conductive layer 212 as an emitter is formed within the opening, and then the second insulating layer is completely removed. This emitter is subjected to doping. Using the emitter and the conductive spacer as a mask, one portion of the first insulating layer is removed, and using the emitter and conductive spacer as a mask, the epitaxial layer is subjected to different doping to change one portion of the layer into a base contact region 218. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing an integrated circuit by a double-damascene process which exhibits a wide process flexibility and can be easily adapted in mass-production process. SOLUTION: After an etch stop layer 54 is patterned for forming an opening 72 corresponding to a pattern in a connection which is formed on the first level of a two-level connection structure, an intermetallic dielectric layer 58 is provided on it and a photoresist mask 62 is provided on it. Openings 64 and 66 of the mask 62 correspond to the wiring pattern provided on the second level of the connection structure and a dielectric layer 58 is partially exposed from them. The dielectric layer 58 is etched and the etching is advanced in such a way that an opening 68 is produced in the exposed part of the stop layer 54 from the opening 72 of the interlayer dielectric layer 52. In other words, openings for both of the wiring on the second level and the connection on the first level are demarcated by a single etching process. Further, the opening 72 of the stop layer is tapered with its upper diameter being larger than its lower diameter. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method for precleaning a polymer debris to be removed by softening and burning the debris. SOLUTION: In the method for precleaning a polymer debris, etching treatment using a perfluocarbon gas is carried out and then a specific gas mixture is provided. Next, a plasma generated from the gas mixture is used to preclean a polymer debris. The specific gas mixture is selected from the group of a gas mixture of oxygen and nitrogen, a gas mixture of hydrogen and argon, a gas mixture of argon and nitrogen, and a gas mixture of oxygen and argon. The plasma generated from the gas mixture can perfectly remove the polymer debris in the next cleaning operation in order to soften, burn and remove the polymer debris. Therefore, a running time for the next cleaning operation can be shortened. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a reference voltage generator for generating reference voltage being lower than power source voltage by quantity being selected previously. SOLUTION: A reference voltage source generates first reference voltage being higher than a ground potential by VREF. A first load element is coupled to a ground node, and generates an internal reference signal decided by magnitude of a current flowing in the first load element. A differential amplifier generates a signal decided by difference between a first input signal and a second input signal. A current adjusting switch has a control node coupled to an output of the differential amplifier, and it is coupled so that a current flowing in the first load element is decided. A second load element is coupled to the first load element in series and coupled to a power source node, its impedance is selected so that the second load element generates the second reference voltage.
Abstract:
PROBLEM TO BE SOLVED: To provide a phase shift mask having three different phase shift regions for eliminating the problem that corners have roundness in unexposed regions by diffraction and scattering of light, i.e., a corner round problem and a method for manufacturing the same. SOLUTION: The surface of a transparent substrate is provided with opaque mask patterns 415 which cover the first part of the transparent substrate and expose the second part of the transparent substrate. The proximate regions around the corners of the opaque mask patterns are evenly divided to the three different phase shift regions 430, 440 and 450 at a phase shift of 120 deg. from each other. These three phase shift regions are achieved by two times of etching steps for forming the first phase shift 430 and the second phase shift region 440. Namely, the region subjected to both of two times of the etching steps is the third phase shift region 450.
Abstract:
PROBLEM TO BE SOLVED: To provide a phase shift mask production method that improves the alignment accuracy of patterns and reduced in processing cost. SOLUTION: A photoresist layer is formed on a shielding layer in such a way that the photoresist layer has a vertical side wall, a deposited layer is uniformly formed on the photoresist layer and the shielding layer surrounding the photoresist layer, and the deposited layer is silylanized. In order to form a spacer on the vertical side wall, the deposited layer on the photoresist layer and the shielding layer surrounding the photoresist layer is removed and the deposited layer covering the top of the vertical side wall of the photoresist layer is partially removed. The shielding layer not covered with the photoresist layer and the spacer and a phase shifter layer are vertically removed and spacer and the shielding layer under the spacer are vertically removed. The photoresist layer is thoroughly removed so as to complete the objective phase shift mask.