Abstract:
PROBLEM TO BE SOLVED: To provide a micromechanical structure body or a laminated body having an RMMA thin layer having no internal distortion and excellent in vertical characteristics of a wall. SOLUTION: The michromechanical structure body includes an independent RMMA main body wherein at least one of an upper surface or a lower surface is mechanically rolled, and a thickness between the upper surface and the lower surface is smaller than 1 mm. The main body is produced by preformed PMMA substantially having no internal stress. The laminated body includes the low-molecular weight PMMA thin layer on a surface of a substrate, and a preformed PMMA sheet having a thickness of less than 3 mm and bonded on the low-molecular weight PMMA layer by a function of a solvent. The laminated layer body is prepared by spin coating the substrate with the low-molecular weight PMMA thin layer, curing the layer, wetting the low-molecular weight PMMA layer with an MMA monomer, applying the PMMA preformed sheet for the wetted layer, bonding the preformed sheet on the wetted layer, and bonding the preformed sheet on the substrate. COPYRIGHT: (C)2004,JPO
Abstract:
PURPOSE: A method for manufacturing a metal structure using a LIGA process is provided to form a stable metal structure by implementing the width and the thickness of a trench. CONSTITUTION: A method for manufacturing a metal structure using a LIGA process is provided. A positive photo resist layer and a negative photo resist layer are spread on a substrate. After a part of the negative photo resist layer is exposed, a part not exposed is developed, so that a trench is formed. A hole is formed by exposing and developing a part of the positive photo resist layer exposed by the trench. A metal structure is formed by filling the trench and the hole with metal. The metal structure is subject to a LIGA process. After forming the metal structure in the trench and the hole, the positive photo resist layer is removed and the metal structure is floated.
Abstract:
A stamper-forming electrode material contains Ag as its main ingredient and at least one other element, preferably Au and/or Cu. It is preferred that the Au and Cu contents each be 5.0 wt% or less. A stamper-forming thin film (13) is made of this stamper-forming electrode material, whereby its corrosion resistance is improved to suppress damage to itself, and a high-quality stamper can hence be formed.
Abstract:
A stamper-forming electrode material contains Cu as its main ingredient and at least one other element, preferably Ag and/or Ti. It is preferred that the Ag content be 10.0 wt% or less and that the Ti content be 5.0 wt% or less. A stamper-forming thin film (13) is made of this stamper-forming electrode material, whereby its corrosion resistance is improved to suppress damage to itself, and a high-quality stamper can hence be formed.
Abstract:
In the formation of microstructures, a preformed sheet of photoresist, such as polymethylmethacrylate (PMMA), which is strain free, may be milled down before or after adherence to a substrate to a desired thickness. The photoresist is patterned by exposure through a mask to radiation, such as X-rays, and developed using a developer to remove the photoresist material which has been rendered susceptible to the developer. Micrometal structures may be formed by electroplating metal into the areas from which the photoresist has been removed. The photoresist itself may form useful microstructures, and can be removed from the substrate by utilizing a release layer between the substrate and the preformed sheet which can be removed by a remover which does not affect the photoresist. Multiple layers of patterned photoresist can be built up to allow complex three dimensional microstructures to be formed.
Abstract:
Die Erfindung betrifft ein Verfahren zum Herstellen einer Vielzahl plattenförmiger Mikrostrukturkörper aus Metall, bei dem durch wiederholtes Abformen eines die Mikrostrukturen aufweisenden Werkzeugs mit einer elektrisch isolierenden Abformmasse Negativformen der Mikrostrukturen erzeugt werden, die galvanisch mit einem Metall aufgefüllt werden, wonach die Negativformen entfernt werden, und bei dem elektrisch leitendes Material wieder lösbar auf die Mikrostrukturen des Werkzeugs aufgebracht und im Zuge des Abformens auf die Abformmasse übertragen wird. Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der gattungsgemäßen Art so zu gestalten, daß damit eine störungsfreie galvanische Auffüllung der Negativformen selbst bei sehr hohen Aspektverhältnissen und kleinsten charakteristischen, lateralen Abmessungen der Mikrostrukturen ermöglicht wird. Zur Lösung schlägt die vorliegende Erfindung vor, daß das elektrisch leitende Material auf die Stirnflächen (5a) der Mikrostrukturen (5) des Werkzeugs (4) aufgebracht wird, von wo es im Zuge des Abformens auf die diesen Stirnflächen (5a) gegenüberliegenden Formböden (10a) der Abformmasse (9) übertragen wird.