摘要:
A method is disclosed of forming a fine pattern on a substrate (1), in which an etching mask pattern (B) is formed on a layer of material (A) of a pattern to be formed, an overlying layer (C) is deposited on a pattern material layer (A) and the mask pattern (B), and thereafter, the overlying layer and the pattern material layer are etched by ion etching. This method makes it possible, due to the pattern-widening effect caused by the deposition of the overlying layer and by ion etching, to form a pattern having a gap smaller than 0.5 um or a continuous-disk pattern having a period of 2 um or less by photolithography having a 1 um resolution. It is also possible to form a pattern adapted to enable an easy planing process, by utilizing the difference in etching rate between the mask pattern and the overlying layer. An apparatus used for carrying out the pattern forming method comprises film layer forming means and ion etching means, whereby the overlying layer forming step and the ion etching step can be successively performed by using one and the same apparatus.
摘要:
A fabrication method of an anti-reflection structure includes the steps of: forming a resin film having micro-particles dispersed therein on a surface of a substrate; forming a protrusion dummy pattern on the resin film by etching the resin film using the micro-particles in the resin film as a mask while gradually etching the micro-particles; and forming a protrusion pattern on the surface of the substrate by etching back the surface of the substrate together with the resin film having the protrusion dummy pattern formed thereon, and transferring a surface shape of the protrusion dummy pattern formed on a surface of the resin film to the surface of the substrate.
摘要:
Etching method applicable to a semiconductor device fabrication and an MEMS(Micro-Electro-Mechanical System) process, including the steps of forming an etching mask on a substrate, forming a plurality of patterns in the etching mask corresponding to depths of the plurality of trenches; and etching the substrate using the etching mask having the plurality of patterns formed therein, whereby eliminating an alignment error in respective photolithography, that permits to form a precise structure, simplify a fabrication process, and reduce a production cost.
摘要:
The method comprises the steps of providing a semiconductor body or substrate (1) with a recess or trench (2) in a main surface (10), applying a mask (3) on the main surface, the mask covering the recess or trench, so that the walls and bottom of the recess or trench and the mask together enclose a cavity (4), which is filled with a gas, and forming at least one opening (5) in the mask at a distance from the recess or trench, the distance (6) being adapted to allow the gas to escape from the cavity via the opening when the gas pressure exceeds an external pressure.
摘要:
A fabrication method of an anti-reflection structure includes the steps of: forming a resin film having micro-particles dispersed therein on a surface of a substrate; forming a protrusion dummy pattern on the resin film by etching the resin film using the micro-particles in the resin film as a mask while gradually etching the micro-particles; and forming a protrusion pattern on the surface of the substrate by etching back the surface of the substrate together with the resin film having the protrusion dummy pattern formed thereon, and transferring a surface shape of the protrusion dummy pattern formed on a surface of the resin film to the surface of the substrate.