摘要:
A method of mitigating asymmetric lens heating in photolithographically patterning a photo-imagable material using a reticle includes determining where first hot spot locations are expected to occur on a lens when using a reticle to pattern a photo-imagable material. The reticle is then fabricated to include non-printing features within a non-printing region of the reticle which generate additional hot spot locations on the lens when using the reticle to pattern the photo-imagable material. Other implementations are contemplated, including reticles which may be independent of method of use or fabrication.
摘要:
Some embodiments include methods of forming patterns. A semiconductor substrate is formed to comprise an electrically insulative material over a set of electrically conductive structures. An interconnect region is defined across the electrically conductive structures, and regions on opposing sides of the interconnect region are defined as secondary regions. A two-dimensional array of features is formed over the electrically insulative material. The two-dimensional array extends across the interconnect region and across the secondary regions. A pattern of the two-dimensional array is transferred through the electrically insulative material of the interconnect region to form contact openings that extend through the electrically insulative material and to the electrically conductive structures, and no portions of the two-dimensional array of the secondary regions is transferred into the electrically insulative material.
摘要:
A method of mitigating asymmetric lens heating in photolithographically patterning a photo-imagable material using a reticle includes determining where first hot spot locations are expected to occur on a lens when using a reticle to pattern a photo-imagable material. The reticle is then fabricated to include non-printing features within a non-printing region of the reticle which generate additional hot spot locations on the lens when using the reticle to pattern the photo-imagable material. Other implementations are contemplated, including reticles which may be independent of method of use or fabrication.
摘要:
Some embodiments include methods of forming patterns. A semiconductor substrate is formed to comprise an electrically insulative material over a set of electrically conductive structures. An interconnect region is defined across the electrically conductive structures, and regions on opposing sides of the interconnect region are defined as secondary regions. A two-dimensional array of features is formed over the electrically insulative material. The two-dimensional array extends across the interconnect region and across the secondary regions. A pattern of the two-dimensional array is transferred through the electrically insulative material of the interconnect region to form contact openings that extend through the electrically insulative material and to the electrically conductive structures, and no portions of the two-dimensional array of the secondary regions is transferred into the electrically insulative material.
摘要:
Photolithographic apparatus and methods are disclosed. One such apparatus includes an optical path configured to provide a first diffraction pattern in a portion of an optical system and to provide a second diffraction pattern to the portion of the optical system after providing the first diffraction pattern. Meanwhile, one such method includes providing a first diffraction pattern onto a portion of an optical system, wherein a semiconductor article is imaged using the first diffraction pattern. A second diffraction pattern is also provided onto the portion of the optical system, but the second diffraction pattern is not used to image the semiconductor article.
摘要:
Photolithographic apparatus and methods are disclosed. One such apparatus includes an optical path configured to provide a first diffraction pattern in a portion of an optical system and to provide a second diffraction pattern to the portion of the optical system after providing the first diffraction pattern. Meanwhile, one such method includes providing a first diffraction pattern onto a portion of an optical system, wherein a semiconductor article is imaged using the first diffraction pattern. A second diffraction pattern is also provided onto the portion of the optical system, but the second diffraction pattern is not used to image the semiconductor article.
摘要:
A method for reducing the effects of lens heating of a lens in an imaging process includes determining heat load locations on the lens according to an illumination source and a reticle design, obtaining a lens response characterization according to the heat load locations, and utilizing the heat load locations and the lens response characterization to generate a lens heating sensitivity map.
摘要:
A reticle with a composite polarizer includes: a transparent substrate; a patterned layer disposed on said transparent substrate; and a polarizing filter disposed on said transparent substrate, wherein said transparent substrate is substantially transparent with respect to illumination light, said patterned layer is partially opaque with respect to said illumination light, and said polarizing filter is capable of selectively polarizing said illumination light.
摘要:
An imaging device comprising at least one array pattern region and at least one attenuation region. A plurality of imaging features in the at least one array pattern region and a plurality of assist features in the at least one attenuation region are substantially the same size as one another and are formed substantially on pitch. Methods of forming an imaging device and methods of forming a semiconductor device structure are also disclosed.
摘要:
An imaging device comprising at least one array pattern region and at least one attenuation region. A plurality of imaging features in the at least one array pattern region and a plurality of assist features in the at least one attenuation region are substantially the same size as one another and are formed substantially on pitch. Methods of forming an imaging device and methods of forming a semiconductor device structure are also disclosed.