Patent ID: 6524959
Filing Date: 2003-02-25
Classification: B24B

Abstract:
A method for fabricating a microelectronic fabrication comprising:providing a substrate having formed thereover a minimum of one microelectronic layer, the minimum of one microelectronic layer being at least partially transparent to an incident radiation beam; positioning the incident radiation beam to be incident first upon the minimum of one microelectronic layer and then upon the substrate; chemical mechanical polish planarizing the minimum of one microelectronic layer, while employing a chemical mechanical polish planarizing method, to form from the minimum of one microelectronic layer a minimum of one chemical mechanical polish planarized microelectronic layer; and determining a chemical mechanical polish planarizing endpoint within the chemical mechanical polish planarizing method with respect to the minimum of one chemical mechanical polish planarized microelectronic layer as an inflection point within a derivative of a reflected radiation intensity of a minimum of one reflected portion of the incident radiation beam reflected from the minimum of one microelectronic layer as the minimum of one microelectronic layer is chemical mechanical polish planarized to form the minimum of one chemical mechanical polish planarized microelectronic layer.