10995 results about "Thermal source" patented technology

Methods and apparatuses to improve the temperature uniformity of a workpiece being processed on a heated platen of a thermal processing station. A heated platen is enclosed in a housing incorporating an additional heat source that uniformly outputs thermal energy into the process chamber in which the heated platen is positioned. In preferred embodiments, this heat source is positioned in the lid of the housing. It is additionally preferred that the heated lid includes features that provide a gas flow path to introduce to and/or purge gas from the process chamber. In terms of photoresist performance, the improved thermal uniformity provided by using such an additional heat source in the housing, e.g., in the lid, offers improved line width control and line uniformity across a wafer.

Systems and methods for controlling a climate control system of a smart-home environment that includes a plurality of smart devices are provided. One method includes detecting, with a hazard detector of the smart devices, a level of carbon monoxide (CO) at the hazard detector that exceeds a threshold CO level at a location of the hazard detector, determining, by one of the smart devices, that the climate control system includes a combustion based heat source, and in response to the detecting and the determination, transmitting, by a system controller of the climate control system, a first signal to turn off at least one aspect of the climate control system.

The invention provides systems and methods for providing illumination. A lighting unit may have a support structure, and one or more light emitting elements supported by a circuit board contacting the support structure. A first optical element and a second optical element may be provided. A remote luminescent material may be provided on one or more optical elements. Light emitting elements configured to excite the luminescent material such as highly efficient light emitting diodes may be directed towards the luminescent material. The support structure may be a heat dissipating element, which may conduct heat from a heat source to a surface of the support structure. The heat dissipating element may have a passageway permitting the formation of a convection path to dissipate heat from the support structure. Such lighting units may be used to replace conventional fluorescent light tubes or other lighting devices, or may be provided as standalone lighting units.

A method of controlling temperature of a heat source in contact with a heat exchanging surface of a heat exchanger, wherein the heat exchanging surface is substantially aligned along a plane. The method comprises channeling a first temperature fluid to the heat exchanging surface, wherein the first temperature fluid undergoes thermal exchange with the heat source along the heat exchanging surface. The method comprises channeling a second temperature fluid from the heat exchange surface, wherein fluid is channeled to minimize temperature differences along the heat source. The temperature differences are minimized by optimizing and controlling the fluidic and thermal resistances in the heat exchanger. The resistances to the fluid are influenced by size, volume and surface area of heat transferring features, multiple pumps, fixed and variable valves and flow impedance elements in the fluid path, pressure and flow rate control of the fluid, and other factors.

Various techniques are disclosed for improving airtight two-phase heat-transfer systems employing a fluid to transfer heat from a heat source to a heat sink while circulating around a fluid circuit, the maximum temperature of the heat sink not exceeding the maximum temperature of the heat source. The properties of those improved systems include (a) maintaining, while the systems are inactive, their internal pressure at a pressure above the saturated-vapor pressure of their heat-transfer fluid; and (b) cooling their internal evaporator surfaces with liquid jets. FIG. 43 illustrates the particular case where a heat-transfer system of the invention is used to cool a piston engine (500) by rejecting, with a condenser (508), heat to the ambient air; and where the system includes a heat-transfer fluid pump (10) and means (401-407) for achieving the former property.

A heat exchanger apparatus and method of manufacturing comprising: an interface layer for cooling a heat source and configured to pass fluid therethrough, the interface layer having an appropriate thermal conductivity and a manifold layer for providing fluid to the interface layer, wherein the manifold layer is configured to achieve temperature uniformity in the heat source preferably by cooling interface hot spot regions. A plurality of fluid ports are configured to the heat exchanger such as an inlet port and outlet port, whereby the fluid ports are configured vertically and horizontally. The manifold layer circulates fluid to a predetermined interface hot spot region in the interface layer, wherein the interface hot spot region is associated with the hot spot. The heat exchanger preferably includes an intermediate layer positioned between the interface and manifold layers and optimally channels fluid to the interface hot spot region.

A method and apparatus for rapid thermal annealing comprising a plurality of lamps affixed to a lid of the chamber that provide at least one wavelength of light, a laser source extending into the chamber, a substrate support positioned within a base of the chamber, an edge ring affixed to the substrate support, and a gas distribution assembly in communication with the lid and the base of the chamber. A method and apparatus for rapid thermal annealing comprising a plurality of lamps comprising regional control of the lamps and a cooling gas distribution system affixed to a lid of the chamber, a heated substrate support with magnetic levitation extending through a base of the chamber, an edge ring affixed to the substrate support, and a gas distribution assembly in communication with the lid and the base of the chamber.

The present invention relates to an apparatus and method for rapid flash-like volatilization of high and low vapor pressure components from liquid or solid emanators which is in contact with a point or localized heat source. Vaporization is promoted by a geometrically small electrically resistive heating element with variable activation for pulsed or cyclic heating of an emanating surface containing the volatile components. The apparatus is primarily directed towards the treatment of residential air for fragrancing, odor elimination, treatment of insects or pests, air sanitization, air and surface antibacterial or antimicrobial treatment, or other ambient air or surface modification by way of gas or vapor distribution.

The invention provides systems and methods for providing illumination. A lighting unit may have a support structure, and one or more light emitting elements supported by a circuit board contacting the support structure. A first optical element and a second optical element may be provided. A remote luminescent material may be provided on one or more optical elements. Light emitting elements configured to excite the luminescent material such as highly efficient light emitting diodes may be directed towards the luminescent material. The support structure may be a heat dissipating element, which may conduct heat from a heat source to a surface of the support structure. The heat dissipating element may have a passageway permitting the formation of a convection path to dissipate heat from the support structure. Such lighting units may be used to replace conventional fluorescent light tubes or other lighting devices, or may be provided as standalone lighting units.

Apparatus for treating an aneurysm in a vessel that isolates a volume around the aneurysm, evacuates that volume and heats the aneurysmal wall. A catheter includes one or more inflatable balloons for defining the isolated volume and occluding and preventing any blood flow through the volume. Suction applied through the catheter to the isolated volume withdraws any blood in the isolated volume and displaces the tissue for contact with a thermal source that heats the aneurysmal wall. When the treatment is completed, the balloons are deflated and the catheter is removed from the vessel.

The invention discloses a device and method for preparing nitrogen foam cement. The preparing device comprises a foam cement producer, a liquid nitrogen evaporator, a liquid nitrogen plunger pump, a foam liquid plunger pump, a foam liquid tank, a heat exchange system, a liquid nitrogen pipeline, a high-pressure cement paste pipeline, a first pipeline, a foam cement discharge pipeline and a densitydetecting device. The heat generated by a power unit, a hydraulic system and other devices in a nitrogen foam well fixing device is recovered through the heat exchange system, the recovered heat is used as a heat source of the liquid nitrogen evaporator, energy conservation and environment protection are realized, the energy utilization rate is high, and equipment input is low. Liquid nitrogen and foam liquid are pressurized through a high-pressure liquid nitrogen plunger pump and a high-pressure foam liquid plunger pump, the mixing uniformity is increased, and the density of foam cement is reduced. The density of the foam cement is detected in real time through the density detecting device, the flow of the liquid nitrogen and/or foam liquid is adjusted according to the density, and the density is simply controlled. By arranging a clear water tank, after operation ends, the equipment and pipelines are flushed, and the service life is polonged.

Method and apparatus for making [and coating] a plastic lens is provided. [Oxygen barrier containing photoinitiator is used to cure incompletely cured lens portions. Radiation pulses are used to control lens curing rate. Lens is postcured while in a mold cavity using a conductive heat source.] More particularly, the invention relates to applying alternating periods of ultraviolet light to lens forming composition. Such composition is cured while controlling the rate of heat generation and/or dissipation via manipulation of the duration of the radiation or the cooling in the curing chamber. The ultraviolet light is directed toward the lens forming composition which is preferably disposed in a mold cavity formed by two mold members. The ultraviolet light may be directed in pulses or continuously.

The invention belongs to the technical field of concrete additives in building materials. The high water reduction high collapse protection type polycarboxylate high-performance water reducer mainly comprises the following monomer components: unsaturated methyl vinyl polyoxyethylene ether (A), a chain transfer agent (B), a mixture (C) of one or more of unsaturated acid and unsaturated acid derivatives, an oxidant (D) and a reducing agent (E), wherein the molar ratio A: B: C: D: E of the monomers is 1:0.01-0.5:2-8:0.08-0.5:0.02-0.3. The high water reduction high collapse protection type polycarboxylate high-performance water reducer is prepared by regulating the polymer mass concentration to between 20 and 40 percent by using water, and polymerizing a redox initiator system at normal temperature. The water reducer has the advantages of low doping amount, high water reducing ratio, excellent slump retaining capacity, and high cement adaptability, and the technology has the advantages of no need of extra heat source, implementation at normal temperature, low equipment investment, low cost and suitability for large area popularization and application.

A device, method and system for facilitating treatment of a sinusitis condition, including a heat source configured to deliver an output of heated air to the nasal passages of an individual, and a delivery component having a space through which the heated air output of the heat source may pass, the delivery component being configured for placement in the individual's nostrils. The system provides a heated air output source and one or more delivery components configured and sized to fit within the nostril of an individual, which may be used to deliver one or more courses of heated air to a user's sinuses through a nostril.