摘要:
In a method of manufacturing a photomask pattern, a light-shielding layer pattern and an anti-reflective layer pattern are formed sequentially on a transparent substrate. Oxidation and nitridation processes are performed on a sidewall of the light-shielding layer pattern to form a protection layer pattern on a lateral portion of the light-shielding layer pattern.
摘要:
In a method of manufacturing a photomask pattern, a light-shielding layer pattern and an anti-reflective layer pattern are formed sequentially on a transparent substrate. Oxidation and nitridation processes are performed on a sidewall of the light-shielding layer pattern to form a protection layer pattern on a lateral portion of the light-shielding layer pattern.
摘要:
A method of removing a photoresist may include permeating supercritical carbon dioxide into the photoresist on a substrate having a conductive structure including a metal. The photoresist permeating the supercritical carbon dioxide may be easily removable. The photoresist permeating the supercritical carbon dioxide may be removed using a photoresist cleaning solution from the substrate. The photoresist cleaning solution may include an alkanolamine solution of about 8 percent by weight to about 20 percent by weight, a polar organic solution of about 25 percent by weight to about 40 percent by weight, a reducing agent of about 0.5 percent by weight to about 3 percent by weight with the remainder being water. The photoresist may be easily removed without damaging the conductive structure in a plasma process.
摘要:
In a method of manufacturing a semiconductor device such as a SONOS type semiconductor device, a trench is formed on a substrate. An isolation layer protruding from the substrate is formed to fill the trench. After a first layer is formed on the substrate, a preliminary second layer pattern is formed on the first layer. The preliminary second layer pattern has an upper face substantially lower than or substantially equal to an upper face of the isolation layer. A third layer is formed on the preliminary second layer and the isolation layer. A fourth layer is formed on the third layer. The fourth layer, the third layer, the preliminary second layer pattern and the first layer are partially etched to form a gate structure on the substrate. Source/drain regions are formed at portions of the substrate adjacent to the gate structure.
摘要:
In a method of forming a hole, an insulation layer is formed on a substrate, and a preliminary hole exposing the substrate is formed through the insulation layer. A photosensitive layer pattern including an organic polymer is then formed on the substrate to fill the preliminary hole. An etching gas including hydrogen fluoride (HF) or fluorine (F2) is then provided onto the photosensitive layer pattern to etch the insulation layer so that width of the preliminary hole is increased.
摘要:
In a method of forming a capacitor, a first mold layer pattern including a first insulating material may be formed on a substrate. The first mold layer pattern may have a trench. A supporting layer including a second insulating material may be formed in the trench. The second insulating material may have an etching selectivity with respect to the first insulating material. A second mold layer may be formed on the first mold layer pattern and the supporting layer pattern. A lower electrode may be formed through the second mold layer and the first mold layer pattern. The lower electrode may make contact with a sidewall of the supporting layer pattern. The first mold layer pattern and the second mold layer may be removed. A dielectric layer and an upper electrode may be formed on the lower electrode and the supporting layer pattern.
摘要:
An apparatus for etching a semiconductor substrate may include a bath, a reaction preventing layer, and a nozzle. The bath may receive a chemical solution. Grooves may be formed at the inner wall of the bath. The reaction preventing layer may be formed on the inner wall and in the grooves of the bath to reduce or prevent a chemical reaction between the chemical solution and the bath. The nozzle may supply the chemical solution to the bath. In a method of etching a semiconductor substrate, the semiconductor substrate having trench structures and an insulation layer pattern may be prepared. The semiconductor substrate may then be dipped into the bath having the reaction preventing layer in which the chemical solution is received. The semiconductor substrate may be reacted with the chemical solution by blocking the chemical reaction between the chemical solution and the bath to etch the insulation layer pattern and the trench structure at a uniform rate.
摘要:
An insulation layer may be formed on an object having a contact region. The insulation layer may be partially etched to form an opening exposing the contact region. A material layer including silicon and oxygen may be formed on the exposed contact region. A metal layer may be formed on the material layer including silicon and oxygen. The material layer including silicon and oxygen may be reacted with the metal layer to form a metal oxide silicide layer at least on the contact region. A conductive layer may be formed on the metal oxide silicide layer to fill up the opening.
摘要:
Method of manufacturing semiconductor device are provided including forming an insulation layer having a pad on a substrate; forming an etch stop layer on the insulation layer and the pad; forming a mold structure having at least one mold layer on the etch stop layer; forming a first supporting layer on the mold structure; etching the first supporting layer and the mold structure to form a first opening exposing the etch stop layer; forming a spacer on a sidewall of the first opening; etching the etch stop layer using the spacer as an etching mask to form a second opening, different from the first opening, exposing a first portion of the pad having a first associated area; etching the etch stop layer using the spacer as an etching mask to form a third opening exposing a second portion of the pad having a second associated area, the second associated area being larger than the first associated area; and etching the mold structure to form a fourth opening having a width larger than a width of the third opening.
摘要:
A method of forming a pattern in a semiconductor device includes forming an etching object layer on a substrate, the etching object layer is an oxide that is substantially free of impurities. A mask is formed on the etching object layer, the mask is an oxide that includes impurities. The etching object layer is patterned using the mask as an etching mask and then the mask is removed. The mask is removed using an etchant having an etching selectivity to an oxide that is substantially free of impurities and an oxide that includes impurities during removing of the mask to limit damage to the patterned etching object layer during removal of the mask.