摘要:
A near field optical microscopy method and apparatus eliminates the necessity of an aperture for scanning a sample surface and greatly reduces the detected background signal. A small dimension tip, on the order of atomic dimension, is disposed in close proximity to the sample surface. A dither motion is applied to the tip at a first frequency in a direction substantially normal to the plane of the sample surface. Dither motion is simultaneously applied to the sample at a second frequency in a direction substantially parallel to the plane of the sample surface. The amplitude of the motions are chosen to be comparable to the desired measurement resolution. The end of the tip is illuminated by optical energy. The scattered light from the tip and surface is detected at the difference frequency for imaging the sample surface at sub-wavelength resolution without the use of an aperture. Alternatively, the tip is maintained stationary and the sample undergoes motion in the two directions.
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 trench structure and an integrated circuit comprising sub-lithographic trench structures in a substrate. In one embodiment the trench structure is created by forming sets of trenches with a lithographic mask and filling the sets of trenches with sets of step spacer blocks comprising two alternating spacer materials which are separately removable from each other. In one embodiment, the trench structures formed are one-nth the thickness of the lithographic mask's feature size. The size of the trench structures being dependent on the thickness and number of spacer material layers used to form the set of step spacer blocks. The number of spacer material layers being n/2 and the thickness of each spacer material layer being one-nth of the lithographic mask's feature size.
摘要:
A trench structure and an integrated circuit comprising sub-lithographic trench structures in a substrate. In one embodiment the trench structure is created by forming sets of trenches with a lithographic mask and filling the sets of trenches with sets of step spacer blocks comprising two alternating spacer materials which are separately removable from each other. In one embodiment, the trench structures formed are one-nth the thickness of the lithographic mask's feature size. The size of the trench structures being dependent on the thickness and number of spacer material layers used to form the set of step spacer blocks. The number of spacer material layers being n/2 and the thickness of each spacer material layer being one-nth of the lithographic mask's feature size.
摘要:
A method for patterning a recording medium selectively thermally couples a recording medium and a heat source to alter a chemical composition of the recording medium. An apparatus for patterning a recording medium has a heat source for generating and directing an incident thermal wave to a recording medium so as to alter a chemical composition of the recording medium, and a controller for coordinating a mutual position of the incident thermal wave and the recording medium for inducing a direct thermal coupling between the recording medium and the heat source.
摘要:
A memory device including at least one pair of spaced apart conductors and a ferroelectric material between the pair of conductors. The pair of conductors is spaced apart a distance sufficient to permit a tunneling current therebetween.
摘要:
An assembly suitable for identifying a code sequence of at least a portion of a biomolecule in a gel embodiment. The assembly comprises first means for migrating and separating a portion of a biomolecule in a gel; second means comprising a near-field probe for generating a super-resolution chemical analysis of a portion of a biomolecule; and, third means for correlating the super-resolution chemical analysis of the portion of the biomolecule with a broad spectral content of a referent biomolecule, for generating a code sequencing of the portion of the biomolecule.
摘要:
A method and apparatus for separating molecules comprises placing different kinds of molecular species onto a probe; and introducing an electric field between the probe and a surface in proximity with the probe so that the different kinds of molecular species may be separated, wherein the different kinds of molecular species have differing mobilities, and wherein the different kinds of molecular species may be separated according to their differing mobilities, such that molecular species that have different mobilities migrate along the probe at different speeds towards the surface. The molecular species may comprise molecules. Alternatively, the molecular species may comprise molecular assemblies, wherein the molecular assemblies may comprise at least one of cells, bacteria, and viruses.
摘要:
An assembly and method for recording and/or reading high-density data includes a phase change media, an antenna placed adjacent the phase change media, and a source of electromagnetic radiation.
摘要:
A method for patterning a recording medium selectively thermally couples a recording medium and a heat source to alter a chemical composition of the recording medium. An apparatus for patterning a recording medium has a heat source for generating and directing an incident thermal wave to a recording medium so as to alter a chemical composition of the recording medium, and a controller for coordinating a mutual position of the incident thermal wave and the recording medium for inducing a direct thermal coupling between the recording medium and the heat source.