Patent ID: 7056841
Filing Date: 2006-06-06
Classification: H01L

Abstract:
1. A method of fabricating a semiconductor device so as to reduce coupling noise between metal leads, the method comprising the steps of: i) forming a first metal lead having a first side portion and a first top portion on a semiconductor substrate; and forming a second metal lead having a second side portion and a second top portion on a semiconductor substrate, wherein the first and second side portions of the metal leads are spaced from each other by a predetermined distance; ii) forming a first insulating interlayer on the entire surface of the semiconductor substrate so as to cover the first and second metal leads with the first insulating interlayer; and iii) ion-implanting conductive impurities in portions of the first insulating interlayer contacting each of the first side portion and the second side portion, wherein the polarity of the implanted impurity in the portion of the first insulating interlayer contacting the first side portion is opposite the polarity of the implanted impurity in the portion of the first insulating interlayer contacting the second side portion so as to reduce the internal charges in the first insulating interlayer that are electrified due to external electric field applied by the first and second metal leads.