Abstract:
Provided are methods of fabricating thin film structures that involve assembling block copolymer materials in the presence of condensed phase surfaces on both sides of the thin film, at least one of which is a chemically patterned surface configured to direct the assembly of the block copolymer material. According to various embodiments, the other of the condensed phase surfaces can be a chemically homogenous surface or a chemically patterned surface. Also provided are structures, morphologies, and templates formed in the domain structure of block copolymer materials. In certain embodiments, complex 3-D morphologies and related structures not present in bulk block copolymer materials are provided.
Abstract:
A method of self-assembling density multiplied block copolymers (BCP) structures includes applying a block copolymer (BCP) to a feature-imprinted resist layer. The BCP is thermally annealed to laterally segregate the BCP into self-assembled columns of a first polymer block surrounded by a second polymer block.
Abstract:
The present invention relates to an improved process for producing highly ordered nanopillar or nanohole structures, in particular on large areas, which can be used as masters in NIL, hot embossing or injection molding processes. The process involves decorating a surface with an ordered array of metal nanoparticles produced by means of a micellar block- copolymer nanolithography process; etching the primary substrate to a depth of 50 to 500 nm, where the nanoparticles act as a mask and an ordered array of nanopillars or nanocones corresponding to the positions of the nanoparticles is thus produced; using the nanostructured master or stamp in a structuring processes. Also the finished nanostructured substrate surface can be used as a sacrificial master which is coated with a continuous metal layer and the master is then etched away to leave a metal stamp having an ordered array of nanoholes which is a negative of the original array of nanopillars or nanocones.
Abstract:
The invention relates to a new nanofabrication method especially useful for patterns of two or more different sizes, shapes and/or heights. The method is especially useful for compositions containing block copolymers. The method involves coating the composition onto a multi-patterned substrate, with self-assembly of the polymer components to match the pattern, and the selective removal of the polymer components. A complementary technique is described where a polymer composition comprising domains of different chemical/physical properties can be used to create/change a structure after the application of a stimulus, where the polymeric composition is in bulk form, as a film, or as a coating on an unpatterned or patterned substrate. This structure can be dynamically controlled via the application of the stimulus. The invention is especially useful in the field of integrated circuits, and relates to a means of reducing transistor size and spacing.
Abstract:
This invention provides a method for reducing tip-to-tip spacing between lines using a combination of photolithographic and copolymer self-assembling lithographic techniques. A mask layer is first formed over a substrate with a line structure. A trench opening of a width d is created in the mask layer. A layer of a self-assembling block copolymer is then applied over the mask layer. The block copolymer layer is annealed to form a single unit polymer block of a width or a diameter w which is smaller than d inside the trench opening. The single unit polymer block is selectively removed to form a single opening of a width or a diameter w inside the trench opening. An etch transfer process is performed using the single opening as a mask to form an opening in the line structure in the substrate.
Abstract:
Methods for fabricating sublithographic, nanoscale microstructures utilizing self-assembling block copolymer, and films and devices formed from these methods are provided.
Abstract:
Methods for fabricating arrays of nanoscaled alternating lamellae or cylinders in a polymer matrix having improved long range order utilizing self-assembling block copolymers, and films and devices formed from these methods are provided.
Abstract:
Methods for fabricating sublithographic, nanoscale microchannels utilizing an aqueous emulsion of an amphiphilic agent and a water-soluble, hydrogel-forming polymer, and films and devices formed from these methods are provided.
Abstract:
Изобретение относится к микро- и наноэлектромеханическим устройствам и к способу их изготовления. В одном из вариантов реализации изобретения в основе получения наноэлектромеханической структуры лежат механизмы самоорганизации и самосовмещения, в результате чего ее существенные геометрические параметры не испытывают ограничения со стороны возможностей традиционной фотолитографии. Данное обстоятельство обеспечивает достижение степени интеграции до 10 16 м -2 и выше. Кроме того, в одном из аспектов изобретения в качестве независимой координаты адресации элементов используется их резонансная частота, что позволяет уменьшить плотность необходимых межсоединений. В другом аспекте изобретения обеспечивается датчик газов, обладающий высокой чувствительностью измерения концентрации определенных газов или частиц в атмосфере, универсальными и гибкими механизмами селективности, контролируемым процессом регенерации сенсорной способности. Предложенная структура обеспечивает простой способ измерения резонансной частоты осциллирующего элемента, не предполагающий анализ высокочастотного сигнала.
Abstract:
Block copolymers can be self-assembled and used in methods as described herein for sub-lithographic patterning, for example. The block copolymers can be diblock copolymers, triblock copolymers, multiblock copolymers, or combinations thereof. Such methods can be useful for making devices that include, for example, sub-lithographic conductive lines.