Patent ID: 6620734
Filing Date: 2003-09-16
Classification: H01L

Abstract:
A method of forming a protective segment of material over a digit line contact, comprising:providing a plurality of at least four conductive lines over a semiconductor substrate; the four conductive lines being a first, second, third and fourth conductive line; a first electrical node location being between the first and second conductive lines, a second electrical node location being between the second and third conductive lines, and a third electrical node location being between the third and fourth conductive lines; one of the electrical node locations corresponding to a digit line contact, and the others of the electrical node locations comprising electrical contacts for capacitor storage nodes; forming a material over the conductive lines; forming a patterned masking layer to cover a segment of the material extending between a pair of the conductive lines while leaving an other portion of the material uncovered; and anisotropically etching the uncovered portion of the material to form separated spacers from the uncovered portion, the separated spacers being along sidewalls of at least two of the conductive lines; the covered segment of the material remaining after the anisotropic etching and being a protective segment of the material over the digit line contact.