摘要:
A method for testing an integrated circuit (IC) using a nanoprobe, by using a scanning electron microscope (SEM) to register the nanoprobe to an identified feature on the IC; navigating the nanoprobe to a region of interest; scanning the nanoprobe over the surface of the IC while reading data from the nanoprobe; when the data from the nanoprobe indicates that the nanoprobe traverse a feature of interest, decelerating the scanning speed of the nanoprobe and performing testing of the IC. The scanning can be done at a prescribed nanoprobe tip force, and during the step of decelerating the scanning speed, the method further includes increasing the nanoprobe tip force.
摘要:
A method and an apparatus is disclosed for two-dimensional profiling of doping profiles of a material sample with scanning capacitance microscope. A scanning of a two-dimensional structure of a dielectric or partially dielectric material sample with a tip of a probe of the scanning microscope is carried out. The change in capacitance during the scanning motion of the probe from one position on the material sample to the next is measured. Finally, an evaluation of the change in capacitance during the scanning motion of the probe from one position on the material sample to the next as a current is carried out.
摘要:
A method for measuring nm-scale tip-sample capacitance including (a) measuring a cantilever deflection and a change in probe-sample capacitance relative to a reference level as a function of a probe assembly height; (b) fitting out-of-contact data to a function; (c) subtracting the function from capacitance data to get a residual capacitance as a function of the probe assembly height; and (d) determining the residual capacitance at a z-position where the cantilever deflection is zero.
摘要:
An apparatus and method for generating microscopic scan data of C-V and/or dC/dV over a scan area. A scanning microscope, for example a scanning force microscope, is provided with a voltage biased tip, for example, of tungsten, which is scanned across an area to derive the data. The data can be used to derive a plot of semiconductor dopant level across the scan area. Other material properties can be derived, for example, carrier generation and recombination rates and subsurface defects.
摘要:
A method is provided for fabricating a semiconductor testing structure. The method includes providing a substrate having a to-be-tested device structure formed on a surface of the substrate, a dielectric layer formed on the surface of the substrate and a surface of the to-be-tested structure, and conductive structures and an insulation layer electrically insulating the conductive structures formed on a first surface of the dielectric layer. The method also includes planarizing the conductive structures and the insulation layer to remove the conductive structures and the insulation layer until the first surface of the dielectric layer is exposed; and bonding the first surface of the dielectric layer with a dummy wafer by an adhesive layer. Further, the method includes removing the substrate to expose a second surface relative to the first surface of the dielectric layer of the dielectric layer and a surface of the to-be-tested device structure.
摘要:
A method is provided for fabricating a semiconductor testing structure. The method includes providing a substrate having a to-be-tested device structure formed on a surface of the substrate, a dielectric layer formed on the surface of the substrate and a surface of the to-be-tested structure, and conductive structures and an insulation layer electrically insulating the conductive structures formed on a first surface of the dielectric layer. The method also includes planarizing the conductive structures and the insulation layer to remove the conductive structures and the insulation layer until the first surface of the dielectric layer is exposed; and bonding the first surface of the dielectric layer with a dummy wafer by an adhesive layer. Further, the method includes removing the substrate to expose a second surface relative to the first surface of the dielectric layer of the dielectric layer and a surface of the to-be-tested device structure.
摘要:
A method for testing an integrated circuit (IC) using a nanoprobe, by using a scanning electron microscope (SEM) to register the nanoprobe to an identified feature on the IC; navigating the nanoprobe to a region of interest; scanning the nanoprobe over the surface of the IC while reading data from the nanoprobe; when the data from the nanoprobe indicates that the nanoprobe traverse a feature of interest, decelerating the scanning speed of the nanoprobe and performing testing of the IC. The scanning can be done at a prescribed nanoprobe tip force, and during the step of decelerating the scanning speed, the method further includes increasing the nanoprobe tip force.
摘要:
A method for testing an integrated circuit (IC) using a nanoprobe, by using a scanning electron microscope (SEM) to register the nanoprobe to an identified feature on the IC; navigating the nanoprobe to a region of interest; scanning the nanoprobe over the surface of the IC while reading data from the nanoprobe; when the data from the nanoprobe indicates that the nanoprobe traverse a feature of interest, decelerating the scanning speed of the nanoprobe and performing testing of the IC. The scanning can be done at a prescribed nanoprobe tip force, and during the step of decelerating the scanning speed, the method further includes increasing the nanoprobe tip force.
摘要:
A method is provided for fabricating a semiconductor testing structure. The method includes providing a substrate having a to-be-tested device structure formed on a surface of the substrate, a dielectric layer formed on the surface of the substrate and a surface of the to-be-tested structure, and conductive structures and an insulation layer electrically insulating the conductive structures formed on a first surface of the dielectric layer. The method also includes planarizing the conductive structures and the insulation layer to remove the conductive structures and the insulation layer until the first surface of the dielectric layer is exposed; and bonding the first surface of the dielectric layer with a dummy wafer by an adhesive layer. Further, the method includes removing the substrate to expose a second surface relative to the first surface of the dielectric layer of the dielectric layer and a surface of the to-be-tested device structure.
摘要:
A method is provided for fabricating a semiconductor testing structure. The method includes providing a substrate having a to-be-tested device structure formed on a surface of the substrate, a dielectric layer formed on the surface of the substrate and a surface of the to-be-tested structure, and conductive structures and an insulation layer electrically insulating the conductive structures formed on a first surface of the dielectric layer. The method also includes planarizing the conductive structures and the insulation layer to remove the conductive structures and the insulation layer until the first surface of the dielectric layer is exposed; and bonding the first surface of the dielectric layer with a dummy wafer by an adhesive layer. Further, the method includes removing the substrate to expose a second surface relative to the first surface of the dielectric layer of the dielectric layer and a surface of the to-be-tested device structure.