摘要:
A portable rear projection apparatus includes a lens element for magnifying an image projected from a projector, an aspherical mirror for reflecting the image magnified by the lens element to change a light path, a screen for displaying the image reflected from the aspherical mirror, and a movable screen support for supporting the screen.
摘要:
An automatic probe exchange system for a scanning probe microscope (SPM) exchanges probes between a probe mount on the SPM and a probe mount on a probe tray based on differential magnetic force. When the magnetic force on the SPM side is greater, the probe is attached to the probe mount on the SPM. When the magnetic force on the probe tray side is greater, the probe is attached to the probe mount on the probe tray. The magnetic force on the probe tray side is varied by moving the magnets that generate the magnetic force on the probe tray side closer to or further from the probe.
摘要:
Provided are a scanning probe microscope (SPM) that prevents a distortion of an image caused by alignment errors of scanners and a method of measuring a sample using the same. The scanning probe microscope comprises a probe; a first scanner changing a position of the probe along a straight line; a second scanner changing a position of a sample in a plane; and an adjusting device adjusting a position of the second scanner or the first scanner so that the straight line where the position of the probe is changed using the first scanner is perpendicular to the plane in which the position of the sample is changed using the second scanner.
摘要:
A method and apparatus to compensate for imperfections in a sound field includes determining a frequency-response characteristic of a test signal, extracting a difference spectrum by filtering the frequency-response characteristic on different octave band scales, detecting frequency parameters of peak and dip components that deviate from a critical value in the difference spectrum, and calculating filter coefficients from the frequency parameters to filter an input audio signal.
摘要:
A method of manufacturing a thin film transistor includes forming a semiconductor layer on a substrate; forming a gate insulating layer over the entire surface of the substrate to cover the semiconductor layer; depositing a conductive layer on the gate insulating layer; forming a first photosensitive pattern over the conductive layer; patterning the conductive layer according to the photosensitive pattern to form a gate electrode; and ion-doping an impurity into the semiconductor layer using the photosensitive pattern as a mask to form source and drain regions.
摘要:
A scanning probe microscope compensates for relative drift between its upper structure that includes a probe and a scanner that scans the probe in a straight line and a lower structure that includes a sample stage and a scanner that scans the sample stage in a plane. A light beam from the upper structure is initially aligned with a center of a position sensitive photo detector (PSPD) disposed on the lower structure at a predetermined position of the sample stage and any subsequent misalignments of the light beam with the center of the PSPD at the predetermined position of the sample stage are determined to be caused by drift and compensated by the scanning probe microscope.
摘要:
Provided is a scanning probe microscope (SPM), a probe of which can be automatically replaced and the replacement probe can be attached onto an exact position. The SPM includes a first scanner that has a carrier holder, and changes a position of the carrier holder in a straight line; a second scanner changing a position of a sample on a plane; and a tray being able to store a spare carrier and a spare probe attached to the spare carrier. The carrier holder includes a plurality of protrusions.
摘要:
A mounting mechanism for the probe tip of a Scanning Probe Microscope (SPM) includes a scanner supported by a stationary frame, and a kinematic mechanism supported by the scanner. The kinematic mechanism includes at least three protrusions and at least one magnet. The mounting mechanism for the probe tip also includes a chip mount having a hole, a slot and a flat surface. The chip mount, on being held by the magnet, provides an easy way to mount the probe tip without requiring any tools.
摘要:
A method of manufacturing a thin film transistor includes forming a semiconductor layer on a substrate; forming a gate insulating layer over the entire surface of the substrate to cover the semiconductor layer; depositing a conductive layer on the gate insulating layer; forming a first photosensitive pattern over the conductive layer; patterning the conductive layer according to the photosensitive pattern to form a gate electrode; and ion-doping an impurity into the semiconductor layer using the photosensitive pattern as a mask to form source and drain regions.
摘要:
A sample and selective support structure mounted on a platform in a scanning tunneling microscope includes a double spring support with the springs overlapped to reduce overall length of the support. In a preferred embodiment, a rigid support structure supports a first platform. A second platform is positioned around and spaced from the first platform and includes a plurality of support members extending therefrom. A first set of springs is attached to the rigid support structure and to the second platform for supporting the second platform, and a second set of springs is attached to the second platform and to the first platform for supporting the first platform. By attaching the second set of springs to the rigid members extending from the second platform, the first and second sets of springs can be overlapped, thereby reducing the overall length of the spring support without reducing the effective length of the springs. A lock mechanism is provided for locking the first and second platforms when not in use, and includes a rod that engages holes in two members depending from the first and second platforms. The lock mechanism further includes first and second rigid arms pivotally attached to the rod and supported whereby the rigid arms extend from and retract to the rod when the rod is translated. When the rigid arms are extended from the rod, the arms engage lock mechanisms depending from the first platform, thereby achieving a rigid lock in six axes of motion.