Abstract:
PROBLEM TO BE SOLVED: To provide an antireflection film capable of sufficiently reducing reflectance on an interface between a resist layer and a silicon semiconductor substrate, even if exposure light is made incident obliquely by one layer in a liquid immersion lithography technique, and to provide an exposure method. SOLUTION: The double layer structure antireflection film is used in exposing a resist layer in an exposure system having a wavelength of 190-195 nm and having a numerical aperture of 0.93-1.0, and is formed between the resist layer and a silicon nitride film formed on the surface of the silicon semiconductor substrate. When complex refractive indexes N 1 , N 2 of upper layer and lower layer constituting the antireflection film are expressed by the expressions; N 1 =n 1 -k 1 i, N 2 =n 2 -k 2 i, film thicknesses of the upper layer and lower layer are d 1 , d 2 and a predetermined combination is selected as the combination of values [n 10 , k 10 , d 10 , n 20 , k 20 , d 20 ], n 1 , k 1 , d 1 , n 2 , k 2 , d 2 satisfy the following relation: ä(n 1 -n 10 )/(n 1m -n 10 )} 2 +ä(k 1 -k 10 )/(k 1m -k 10 )} 2 +ä(d 1 -d 10 )/(d 1m -d 10 )} 2 +ä(n 2 -n 20 )/(n 2m -n 20 )} 2 +ä(k 2 -k 20 )/(k 2m -k 20 )} 2 +ä(d 2 -d 20 )/(d 2m -d 20 )} 2 ≤1. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide polarization illumination of an exposure apparatus with which resolution property can be enhanced, in exposure of gate lines, or the like, having strict dimensional rules, when a desired pattern is obtained by projection mapping that uses a phase shift mask. SOLUTION: The exposure apparatus comprises a fly-eye lens array 304 arranged with fly-eye lenses in a matrix form, in order to equalize the intensity of light emitted from a light source, a rotation element array 302 consisting of a plurality of rotation elements for making the plane of vibration of passing light, arranged in correspondence with respective lens elements of the fly-eye lens array 304 rotate and having an optical axis parallel with the traveling direction of the light emitted from a light source, and a condenser lens 306 for irradiating a phase shift mask 308 with a light, having an orientation distribution of the plane of vibration in the plane of an equivalent light source via the fly-eye lens array 304 and the rotation element array 302, wherein the equivalent light source has a cross or radial cross shape and orientation distribution of the plane of vibration of light in the equivalent light source has a cross or radial cross shape. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an exposure mask which has a simple structure suitable for manufacturing a microlens array in a random pitch for example and which can be easily produced. SOLUTION: The exposure mask aims to form a resist layer having a curved line on the surface represented by a function of R i =f i (P) as a design. When a mask pattern region between X i_a and X i_b corresponding to a closed interval [P i_a , P i_b ] on the resist layer is segmented into (2N i +1) of unit mask pattern regions comprising a light transmitting region and a light shielding region, an area ratio RT i_n älight transmitting region/(light transmitting region+light shielding region)} constituting each unit mask pattern region UMP 1_n (wherein n=0, 1 to 2N) is determined based on a value by f i (P i_a +nä¾P i_b -P i_a ¾/2N i }) and N i is a positive integer determined by ¾P i_b -P i_a ¾. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation:要解决的问题:提供一种具有简单结构的曝光掩模,该结构适用于例如以随机间距制造微透镜阵列并且可以容易地制造。 解决方案:曝光掩模旨在形成在由表面上表示的表面上具有曲线的抗蚀剂层,作为R 设计。 当对应于闭合间隔[P i_a SB>,P i_b SB>的X i_a SB>和X i_b SB>之间的掩模图案区域时, ]分割为包含透光区域和遮光区域的单位掩模图案区域的(2N i SB> +1),面积比RT i_n SB> 构成各单位掩模图案区域UMP 1_n SB>(其中n = 0,1,1〜2N)的发送区域/(透光区域+遮光区域)}根据f SB>(P i_a SB> + n¾P i_b SB>¾¾¾¾¾and and and and and and <<<<<<<<< SB> i SB>是由¾PSB> i integer integer integer integer确定的正整数。 版权所有(C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To easily detect both of a phase shift pattern defect and a normal mask pattern defect in a phase shift mask by an easy operation. SOLUTION: The mask inspection apparatus 100 to inspect phase defects in an exposure mask 150 is equipped with a light source 110, an illumination optical system 120 to homogenize the light L emitting from the light source 110, and an objective optical system 130 to condense the light L exiting from the illumination optical system 120 and transmitting through an exposure mask 150 for imaging onto an observation plane 140. The mask inspection apparatus 100 is also equipped with: a phase difference filter 167 disposed on the pupil plane PL of the objective optical system in the region where the 0-order diffraction light transmitting through the exposure mask 150 passes; and an annular aperture diaphragm 163 on the pupil plane iPL of the illumination optical system, the aperture diaphragm having a conjugate feature to the phase difference filter 167. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To correct a process model matching with each layout pattern set as the object of the simulation and to enhance the fitting accuracy of a simulation. SOLUTION: In the method for generating the process model of a simulation which predicts the shape of a layout pattern formed on a wafer from design information on a photomask, a test mask 50 with a light shielding pattern which represents all the layout patterns permitted in design is prepared, a test pattern is formed by pattern transfer of the test mask 50 under prescribed exposure conditions, the dimensions of the test pattern are measured to obtain actual measurement information, arithmetic operation of the actual measurement information, design information on the test mask, and the exposure conditions is carried out to generate a process model, and then the process model is weighted so that it is adapted to L/S (line and space) with the highest coefficient of distribution in the layout patterns to be the object of the simulation. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To improve a user's operability in a free-cursor user interface.SOLUTION: An image capture unit outputs an RGB image based on a pixel signal corresponding to visible light of light which enters a lens, and an IR image based on a pixel signal corresponding to infrared light of the light which enters the lens. An ROI setting unit sets a movement region of an infrared light source in the IR image on the basis of the RGB image. A display control unit controls a degree of movement of a cursor on a display unit according to the movement of the infrared light source in the movement region. It is possible to apply the present technology, for example, to a television receiver which monitors a viewer's viewing state.
Abstract:
PROBLEM TO BE SOLVED: To provide an antireflection film capable of sufficiently reducing reflectance on an interface between a resist layer and a silicon semiconductor substrate, even if exposure light is made incident obliquely by one layer in a liquid immersion lithography technique, and to provide an exposure method. SOLUTION: The double layer structure antireflection film is used in exposing a resist layer in an exposure system having a wavelength of 190-195 nm and having a numerical aperture of 1.3-1.4, and is formed between the resist layer and a silicon nitride film formed on the surface of the silicon semiconductor substrate. When complex refractive indexes N 1 , N 2 of upper layer and lower layer constituting the antireflection film are expressed by the expressions; N 1 =n 1 -k 1 i, N 2 =n 2 -k 2 i, film thicknesses of the upper layer and lower layer are d 1 , d 2 and a predetermined combination is selected as the combination of values [n 10 , k 10 , d 10 , n 20 , k 20 , d 20 ], n 1 , k 1 , d 1 , n 2 , k 2 , d 2 satisfy the following relation: ä(n 1 -n 10 )/(n 1m -n 10 )} 2 +ä(k 1 -k 10 )/(k 1m -k 10 )} 2 +ä(d 1 -d 10 )/(d 1m -d 10 )} 2 +ä(n 2 -n 20 )/(n 2m -n 20 )} 2 +ä(k 2 -k 20 )/(k 2m -k 20 )} 2 +ä(d 2 -d 20 )/(d 2m -d 20 )} 2 ≤1. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a highly accurate and highly integrated optical waveguide with high accuracy only with lithography technology, and an exposure mask to be used in the method. SOLUTION: This invention is concerned with the manufacturing method of the optical waveguide 1 which, when manufacturing the optical waveguide 1 in which light entering and emitting surfaces 2, 3 are formed in inclined surface-shape , and which is composed of cores 4 and a clad 5, arranges a plurality of main pattern openings 7 corresponding to the cores 4 in an adjacent relation, and forms dummy pattern openings 8 among the main pattern openings 7 in a direction of arrangement, and uniformizes intervals among the main pattern openings 7 and the dummy pattern openings 8 as a result, in a gray tone mask 6 which is to be used in the exposure of photosensitive material 9 to be used in the forming of the cores 4, and exposes the photosensitive material 9 using the gray tone mask 6, and manufactures the forming mold of the cores 4 using the mask obtained by development of the exposed photosensitive material 9. The exposure mask 6 is used in the manufacturing method. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a pattern processing method for executing high speed and highly precise pattern processing by independently executing division processing for each processing unit region, and verifying the arrangement pattern of each processing unit region before deciding it and a program for executing the processing method. SOLUTION: A layout pattern is divided into processing unit regions PUF1, and a margin M1 is set in each of those processing unit regions, and a pattern included in the processing unit region PUF1 having the margin M1 is extracted. The extracted pattern is divided into at least two as necessary in the processing unit region PUF1 having the margin M1, and the parts overlapped with a pattern 40 for verification having the same pattern arrangement as the layout pattern of the divided patterns 21 and 22 are defined as arrangement patterns 31 and 32. The pattern 40 for verification is updated by erasing the decided arrangement patterns 31 and 32 from the pattern 40 for verification in the processing unit region PUF1 having the margin M1. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method for correcting an exposure mask so as to decrease a variance in dimension of a transfer pattern due to microflare. SOLUTION: The method for correcting an exposure mask to be used in the process of forming a transfer pattern on a sensitive substrate includes the following processes. They are: a first process (S1 to S6) to divide a mask face into a plurality of unit cells and to calculate the effective pattern area rate with respect to the flare in each aimed cell; a second process to determine the dimensional change rate of the transfer pattern with respect to the effective pattern area rate for each kind of a plurality of patterns and to calculate the dimensional change amount of the transfer pattern due to the flare in each mask pattern in the aimed cell by using the effective pattern area rate and the dimensional change rate of the transfer pattern calculated in the first process; and a third process to calculate the dimensional correction of the mask pattern for each mask pattern included in the aimed cell based on the dimensional change amount of the transfer pattern calculated in the second process. COPYRIGHT: (C)2004,JPO