PATTERNING METHODS FOR SEMICONDUCTOR DEVICES AND STRUCTURES RESULTING THEREFROM

Semiconductor devices and methods of forming semiconductor devices are provided. A method includes forming a first mask layer over a target layer, forming a plurality of spacers over the first mask layer, and forming a second mask layer over the plurality of spacers and patterning the second mask layer to form a first opening, where in a plan view a major axis of the opening extends in a direction that is perpendicular to a major axis of a spacer of the plurality of spacers. The method also includes depositing a sacrificial material in the opening, patterning the sacrificial material, etching the first mask layer using the plurality of spacers and the patterned sacrificial material, etching the target layer using the etched first mask layer to form second openings in the target layer, and filling the second openings in the target layer with a conductive material. 本发明的实施例提供了一种半导体器件以及形成半导体器件的方法。该方法包括在目标层上方形成第一掩模层，在第一掩模层上方形成多个间隔件，在多个间隔件上方形成第二掩模层，并图案化第二掩模层以形成第一开口，其中，在平面图中，开口的主轴在与多个间隔件中的间隔件的主轴垂直的方向上延伸。该方法还包括在开口中沉积