摘要:
The invention relates to an enclosure with a substantial rectangular configuration, adapted to contain an apparatus sensitive to acoustic vibrations, the enclosure comprising walls and acoustic damping material located within the wall, wherein the acoustic damping material comprises at least one absorbing body of acoustic energy absorbing material located adjacent to a rib of the enclosure. The acoustic vibrations most disturbing the processes in the apparatus within the enclosure are caused by standing acoustic waves within the enclosure with frequencies in the range between 50 Hz and 1000 Hz. These acoustic waves are efficiently damped by the provision of a block of acoustic absorbing material adjacent to one of the ribs of the enclosure, to such an extent that the need for thick walls of the enclosure is substantially obviated, leading to a less voluminous enclosure.
摘要:
A carbonaceous material is removed using a low energy focused ion beam in the presence of an etch-assisting gas. Applicant has discovered that when the beam energy of the FIB is lowered, an etch-assisting gas, such as O2, greatly increases the etch rate. In one example, polyimide material etched using a Xe+ plasma FIB with a beam energy from 8 keV to 14 keV and O2 as an etch-assisting gas, the increase in etch rate can approach 30× as compared to the default mill rate.
摘要:
The invention provides a charged particle beam system wherein the middle section of the focused ion beam column is biased to a high negative voltage allowing the beam to move at higher potential than the final beam energy inside that section of the column. At low kV potential, the aberrations and coulomb interactions are reduced, which results in significant improvements in spot size.
摘要:
A method is provided, along with a corresponding apparatus, for filling a high aspect ratio hole without voids or for producing high aspect ratio structures without voids. A beam having a diameter smaller than the diameter of the hole is directed into the hole to induced deposition beginning in the center region of the hole bottom. After an elongated structure is formed in the hole by the beam-induced deposition, a beam can then be scanned in a pattern at least as large as the hole diameter to fill the remainder of the hole. The high aspect ratio hole can then be cross-sectioned using an ion beam for observation without creating artefacts. When electron-beam-induced deposition is used, the electrons preferably have a high energy to reach the bottom of the hole, and the beam has a low current, to reduce spurious deposition by beam tails.
摘要:
An improved method and apparatus for S/TEM sample preparation and analysis. Preferred embodiments of the present invention provide improved methods for TEM sample creation, especially for small geometry (
摘要:
The invention relates to a charged-particle apparatus having a charged particle source with an optical axis; a magnetic immersion lens comprising a first lens pole and a configurable magnetic circuit; and a first sample stage movable with respect to the optical axis. The apparatus has a first configuration to position the sample, mounted on the first stage, with respect to the optical axis and a second configuration, having a second lens pole mounted on the first stage and intersecting the optical axis, equipped with a second sample stage to position the sample between the two lens poles and is movable with respect to the optical axis, causing the optical properties of the magnetic immersion lens to differ in the two configurations, and can, in the second configuration, be changed by positioning the second lens pole using the first stage, thus changing the magnetic circuit.
摘要:
Semiconductor electroacupuncture needles are disclosed, as well methods of making and using the semiconductor electroacupuncture needles. A controller for controlling the characteristics of the voltage applied to the needles and/or the current flowing through the needles is described. In some embodiments, a portion of the electro acupuncture needle is insulated to control the position below the skin at which the current enters the patient. In some embodiments, an LED on the needle lights when current above a threshold value is passing through the needle and into the patient.
摘要:
Embodiments of the present invention are directed to a method and system for providing a visual indication that a video relay service (VRS) call originates from an inmate at a corrections facility, in which the method includes initiating a video relay service (VRS) call from a corrections facility between a called party and an inmate incarcerated at the corrections facility; and displaying a visual indication on a VRS client used by the called party, the visual indication including at least one of a visual indication that the VRS call is originating from a corrections facility, a visual indication that the VRS call is from an inmate incarcerated at a corrections facility, and a visual indication that the VRS call is being recorded.
摘要:
End caps that attach to any standard tubing to facilitate mounting a tube with LEDs into an existing fluorescent lamp cabinet. The tube can be cut to a desired length. The end caps can be supported by the fluorescent fixtures or mounting brackets in the cabinet. An assembly comprising a light emitting diode (LED) lamp for replacing fluorescent tube lights.
摘要:
A ground supported power boiler is described combining a refractory lined and insulated conical floor; an insulated cylindrical combustion chamber; a cylindrical furnace with water tube wall; a rectangular convective section; a single vertical steam drum; tangential injection of the fuel and combustion air; means for fluidizing the fuel bed; means for selectively stripping particulates from the flue gases; multi-stage particulate stripping and filtering from flue gases, means for using the walls of steam drum as steam/water droplet separator, means for recirculating and capturing heat from the flue gases; means for pressurizing the interior of the boiler above atmospheric pressure; means for heating and drying fuel prior to feeding the fuel to the boiler; means for creating hydrogen shift reaction; means for eliminating any need for sootblowing; and designed to not require the use of an induced draft fan.