Abstract: Memory devices and systems with post-packaging master die selection, and associated methods, are disclosed herein. In one embodiment, a memory device includes a plurality of memory dies. Each memory die of the plurality includes a command/address decoder. The command/address decoders are configured to receive command and address signals from external contacts of the memory device. The command/address decoders are also configured, when enabled, to decode the command and address signals and transmit the decoded command and address signals to every other memory die of the plurality. Each memory die further includes circuitry configured to enable, or disable, or both individual command/address decoders of the plurality of memory dies. In some embodiments, the circuitry can enable a command/address decoder of a memory die of the plurality after the plurality of memory dies are packaged into a memory device.

Abstract: An electromagnetic hammer rapper having forward and retract coils for controllably causing a centrally disposed armature to impact an impact transfer pin to cause the transfer pin to knock-off slag and other encrustations from heat transfer tubes or walls of heat exchanger components, and for causing the armature to be propelled to a retracted position. An electrical circuit for controlling energization of the forward and retract coils is also provided and includes a manually actuatable switch for initiating an impact between the armature and the transfer pin. An auto sequencer/manual selector circuit controls the forward and retract coils of a plurality of electromagnetic solenoids. A phase detection and triggering circuit having an operator adjustable phase control controls the duration for which the forward coil of each electromagnetic solenoid is energized.

Abstract: A method and apparatus for stripping a photoresist layer from a semiconductor wafer, wherein oxidizing gas is fed from the edge of the wafer to the center. The oxidizing gas may be directed so that it is incident on the heated wafer support platform before it is incident on the wafer.

Abstract: An apparatus for rapidly stripping a photoresist which utilizes an oxidizing fluid such as ozone. A very thin layer of oxidizing fluid of four millimeters or less is flowed over the photoresist. The fluid flows at high velocity over the resist, while the resist is heated. Additionally, the resist may be irradiated with ultraviolet radiation at an irradiance of at least about 800 milliwatts/cm.sup.2.

Abstract: A long retracting sootblower for boiler cleaning of the type having a lance tube which is advanced into and out of a boiler and simultaneously rotated, and having one or more nozzles discharging a jet of blowing medium which trace helical paths. An indexing mechanism is provided to change the positioning of the helical paths traced by the nozzles between successive actuation cycles to minimize boiler erosion and mechanical stress caused by repeated blowing medium impact against surfaces within the boiler. the indexing mechanism includes relatively slidable longitudinal advancement rack sections which cause the engaging pinion gears to index by one or more teeth upon each actuation cycle. A movable rack portion is biased by a compliant element to remain in a normal position until initial advancement of the lance carriage which causes the movable portion to be indexed with respect to the fixed portion of the rack.

Abstract: A radiation-reducing door assembly which may be configured as either an entry port or a ventilation port. The door assembly includes a split ring flange-type mounting bracket which can be quickly and easily installed on a manway flange regardless of the state of the manway cover mounting studs. A pair of radiation shielding doors or a ventilation port door may be quickly and easily coupled to the split ring mounting bracket.

Abstract: A vacuum sealing device includes a plug which is thrust into the port of an insulated steam injection tubing for closing an annular space of the tubing which confines a vacuum. The plug is mounted for movement within a first mounting element and for movement within a bellows having an end connected to the first mounting element. A second mounting element is connected to the opposite end of the bellows and carries a rod which is fixed to the plug. By moving the two mounting elements together, the bellows is compressed and the plug is thrust by movement of the rod. The first mounting element is connected to an upper clamping section which cooperates with a lower clamping section to engage around a tubular to be plugged. The upper section can be correctly centered with its plug over the port of the tubular by momentarily compressing the bellows to extend the plug. The plug is provided with a shank portion and a breakable tab for breaking the plug away from the shank portion.

Abstract: A vacuum sealing device includes a plug which is thrust into the port of an insulated steam injection tubing for closing an annular space of the tubing which confines a vacuum. The plug is mounted for movement within a first mounting element and for movement within a bellows having an end connected to the first mounting element. A second mounting element is connected to the opposite end of the bellows and carries a rod which is fixed to the plug. By moving the two mounting elements together, the bellows is compressed and the plug is thrust by movement of the rod. The first mounting element is connected to an upper clamping section which cooperates with a lower clamping section to engage around a tubular to be plugged. The upper section can be correctly centered with its plug over the port of the tubular by momentarily compressing the bellows to extend the plug. The plug is provided with a shank portion and a breakable tab for breaking the plug away from the shank portion.

Abstract: Photoresist is hardened by exposing it to UV radiation while subjecting it to elevated temperatures upon an increase in the degree of polymerization due to exposure to the radiation. The temperature of the photoresist can be controlled by a thermal chuck which contains a thermal ballast of heat conducting material.

Abstract: A method and apparatus for performing deep UV photolithography which utilizes a microwave generated electrodeless light source for producing deep UV radiation. This results in faster semiconductor exposure times and less system downtime for changing failed bulbs as well as other advantages which are detailed herein.

Abstract: A method and apparatus for providing low gloss and controlled gloss radiation cured coatings, and for effecting on-line control of the degree of gloss provided. A radiation-curable coating of a composition which includes inert particulates is first irradiated with curing radiation of wavelengths to which the coating is responsive but having substantially no distribution beneath about 300 nm, and is subsequently irradiated with curing radiation of wavelengths to which the coating is responsive including substantial radiation at wavelengths beneath 300 nm. Gloss control is obtained by adjusting the spectral distribution, the intensity, or the dose of the initial radiation, or by adjusting the time interval between the initial and subsequent irradiation steps.

Abstract: A snubber cartridge assembly is mounted to the nozzle of a control rod drive mechanism to insure that the snubber assembly will be located within the liquid filled section of a nuclear reactor vessel whenever the control rod drive is assembled thereto. The snubber assembly includes a piston mounted proximate to the control rod connecting end of the control rod drive leadscrew to allow the piston to travel within the liquid filled snubber cartridge and controllably exhaust liquid therefrom during a "scram" condition. The snubber cartridge provides three separate areas of increasing resistance to piston travel to insure a speedy but safe "scram" of the control rod into the reactor.

Abstract: A linearly movable latch mechanism is provided to move into engagement with a deformable collet whenever an undesired ejection of a leadscrew is initiated from a nuclear reactor mounted control rod drive. Such an undesired ejection would occur in the event of a rupture in a housing of the control rod drive. The collet is deformed by the linear movement of the latch mechanism to wedge itself against the leadscrew and prevent the ejection of the leadscrew from the housing. The latch mechanism is made to be controllably engageable with the leadscrew and when thus engaged to allow the leadscrew to move in a control direction while moving with the leadscrew to engage and deform the collet when the leadscrew moves in an ejection direction.