Abstract:
Provided is a method for forming a buried word line in a semiconductor device. The method includes forming a trench by etching a pad layer and a substrate, forming a conductive layer to fill the trench, planarizing the conductive layer until the pad layer is exposed, performing an etch-back process on the planarized conductive layer, and performing an annealing process in an atmosphere of a nitride-based gas after at least one of the forming of the conductive layer, the planarizing of the conductive layer, and the performing of the etch-back process on the planarized conductive layer.
Abstract:
A method for fabricating a semiconductor device includes forming an insulation layer containing an impurity, forming a contact hole by etching the insulation layer, performing a treatment to decrease a concentration of the impurity on a surface of the insulation layer, and rinsing the contact hole.
Abstract:
The present invention provides a cleaning solution and a method for cleaning a semiconductor device by the same capable of preventing damages on a tungsten layer from the cleaning solution and removing particles. The cleaning solution includes a deionized water-based ammonia solution; a surfactant added to the ammonia solution; and a chelating agent added to the ammonia solution. The method includes the steps of: depositing a photoresist layer on an upper portion of a substrate provided with a conductive layer including at least a tungsten layer; forming a photoresist pattern by patterning the photoresist layer; forming a conductive pattern by etching the conductive layer with use of the photoresist pattern as an etch mask; removing the photoresist pattern; and performing a cleaning process to the substrate provided with the conductive pattern by using a cleaning solution of a deionized water-based ammonia solution added with a surfactant and a chelating agent.
Abstract:
Provided is a method for fabricating a capacitor of a semiconductor; and, more particularly, to a method for forming a Ru storage node of a capacitor that can form a stable storage node. The method includes the steps of: a method for forming a ruthenium (Ru) storage node of a semiconductor device, comprising the steps of: etching an insulation layer on a substrate and forming openings; depositing a Ru layer along the profile of the insulation layer and the openings; filling a photoresist in the openings; performing an etching process until the insulation layer between neighboring openings is exposed and forming isolated Ru storage nodes with the Ru layer in the openings; and removing photoresist and polymers with a solution including H2SO4 and H2O2.
Abstract translation:提供一种制造半导体电容器的方法; 更具体地说,涉及形成可形成稳定存储节点的电容器的Ru存储节点的方法。 该方法包括以下步骤:形成半导体器件的钌(Ru)存储节点的方法,包括以下步骤:蚀刻衬底上的绝缘层并形成开口; 沿着绝缘层和开口的轮廓沉积Ru层; 在开口中填充光致抗蚀剂; 进行蚀刻工艺,直到相邻开口之间的绝缘层被暴露并且在开口中形成具有Ru层的隔离的Ru存储节点; 并用包括H 2 SO 4和H 2 O 2的溶液除去光致抗蚀剂和聚合物。
Abstract:
Provided is a method for forming a buried word line in a semiconductor device. The method includes forming a trench by etching a pad layer and a substrate, forming a conductive layer to fill the trench, planarizing the conductive layer until the pad layer is exposed, performing an etch-back process on the planarized conductive layer, and performing an annealing process in an atmosphere of a nitride-based gas after at least one of the forming of the conductive layer, the planarizing of the conductive layer, and the performing of the etch-back process on the planarized conductive layer.
Abstract:
A method of removing an ion implanted photoresist comprises performing first cleaning a semiconductor substrate having the ion implanted photoresist using hot deionized water to which a megasonic process is applied, first rinsing the semiconductor substrate using cold deionized water, drying the semiconductor substrate, removing the ion implanted photoresist, and second cleaning the semiconductor wafer using an SPM solution.
Abstract:
Cleaning solutions for removing photoresist resins remaining on the underlying layer patterns formed by photolithography process using the photoresist patterns as etching mask. The cleaning solution for removing photoresist comprises H2O as solvent, amine compounds, hydrazine hydrate, transition metal-removing material and alkali metal-removing material. Photoresist coated on the top portion of underlying layers can be rapidly and effectively removed by the disclosed cleaning solution. In addition, the cleaning solution is environment-friendly because H2O is used as the solvent, and has little effect on metal layers when underlying layers are formed of metals.
Abstract translation:用于除去通过光刻工艺形成的下层图案上残留的光致抗蚀剂树脂的清洁溶液,使用光致抗蚀剂图案作为蚀刻掩模。 用于除去光致抗蚀剂的清洁溶液包含作为溶剂的H 2 O 2,胺化合物,水合肼,过渡金属去除材料和碱金属去除材料。 涂覆在下层的顶部上的光致抗蚀剂可以通过公开的清洁溶液快速且有效地除去。 此外,由于使用H 2 O 2作为溶剂,清洁溶液是环境友好的,并且当金属由金属形成时,对金属层几乎没有影响。
Abstract:
A method for fabricating a semiconductor device includes forming an insulation layer containing an impurity, forming a contact hole by etching the insulation layer, performing a treatment to decrease a concentration of the impurity on a surface of the insulation layer, and rinsing the contact hole.