摘要:
Both wafers on which copper wiring was performed and wafers on which non-copper wiring was performed can be inspected by a single unit of electron microscopic inspection apparatus with no possibilities of the wafers being contaminated with copper. All elements within the apparatus that come in contact with wafers, such as hands of a wafer transporter, are duplicated or more and one of the elements that contact wafers is used appropriately for the wafers under inspection which may be either the wafers on which copper wiring was performed or the wafers on which non-copper wiring was performed.
摘要:
A solid-state electricity meter uses a sensor to measure a current supplied to a load. In one aspect, the electricity meter housing includes a meter base, a register cover, and a meter cover. The meter base includes a plurality of meter cover lock notches disposed about a periphery of the meter base. The register cover includes a plurality of secure ramps disposed on a base portion thereof, each secure ramp having a ramped portion along one side and a land portion. The meter cover includes a plurality of locking tabs corresponding to the meter cover lock notches and further includes a plurality of meter cover locks corresponding to the secure ramps. Upon insertion of the meter cover locking tabs into the meter base lock notches and rotation of the meter cover in a predetermined clockwise or counterclockwise direction, the meter cover locks engage the corresponding secure ramps, thereby biasing the meter cover locking tabs against the backside of the meter base to provide a secure connection.
摘要:
A hardened process controller is encapsulated within a block of translucent material. Changes in the way the process controller transforms electrical input signals are effected by sending an optical signal through a portion of the translucent block to an optical receiver also encapsulated within the block of translucent material. Included within the block of translucent material is a digital display and electrical componentry selected for low heat output.
摘要:
A mounting bracket for a utility meter transceiver unit, comprising a main bracket piece having a first end and a second end, with a through opening at the first end sized to receive therethrough a utility pipe that is in communication with a utility meter, and with a receiving channel at the second end; an upright bracket piece having a third and fourth end, sized at the third end to be received within the receiving channel, and sized at the fourth end to be received within a mounting channel within a utility meter transceiver unit; and a device to adjust the relative positions of the fourth end of the upright bracket piece and the receiving channel.
摘要:
A preferred process comprises providing a pre-formed, substantially transparent window for a cover of an electrical-energy meter, and molding the cover from a molten resin that, when solidified, is substantially opaque. Molding the cover from a molten resin comprises causing a portion of the molten resin to contact a periphery of the window and allowing the portion of the molten resin to cool and thereby solidify so that the portion of the molten resin, upon solidifying, is molded over the periphery of the window and thereby seals and secures the window to the cover.
摘要:
A double fluke security sealing ring is protected, which is novel due to the simplicity of its locking device to be used in polyphase and single phase watt-hour meters, consisting of a series of elements such as, a ring-type circular band made of stainless steel, which presents, at one end, annular rims folded at 90null along itself; and two slotted flanges also folded at 90null, forming the double fluke; and at the other end, two parallel and equidistant slots. It is not possible to revert said hooking action and effect, once the sealing wire is placed, due to the reduced internal space within the two flange slots. Therefore it is red-flagged, when the security sealing ring has been violated with the intention of manually moving the record pointers in order to alter the meter consumption lecture.
摘要:
A hand held testing meter is provided which allows the meter to be viewed and securely supported on the user's hand, while the user's fingers are free to hold and manipulate test instruments. An elastomeric band is provided which is engageable to the meter extending substantially across the meter rear surface. The elastomeric band is resiliently extendable to securely receive a user's hand intermediate the meter rear surface and the elastomeric band.
摘要:
A cover for use on an electric meter is disclosed which includes an optical port which aids in transmission of optical signals from an optical transmitter, such as a light emitting diode, to an optical receiver, such as a photodiode or similar. The optical port further includes lenses located in the optical transmission path to focus the optical signal, either convergently or divergently, proximate to the optical receiver thereby improving signal reception.
摘要:
A method and apparatus performs testing, sorting, and packaging of partially defective semiconductor memory devices in order to construct usable memory chip or module packages that meet the specification of a fully or partially functional package.