125 results about "Thermal interference" patented technology

A non-volatile memory array includes an array of phase-changeable memory elements that are electrically insulated from each other by at least a first electrically insulating region extending between the array of phase-changeable memory elements. The first electrically insulating region includes a plurality of voids therein. Each of these voids extends between a corresponding pair of phase-changeable memory cells in the non-volatile memory array and, collectively, the voids form an array of voids in the first electrically insulating region.

Provided is a circuit device capable of increasing the packaging density and also suppressing the thermal interference between incorporated circuit elements. In a hybrid integrated circuit device, a first circuit board and a second circuit board are incorporated into a case member being arranged in a way that the first circuit board is overlaid with the second circuit board. A first circuit element is arranged on the upper face of the first circuit board and a second circuit element is arranged on the upper face of the second circuit board. In addition, inside the case member, a hollow portion (internal space) which is not filled with a sealing resin is provided, and this hollow portion communicates with the outside through a communicating opening, which is provided by partially opening the case member.

A structure of light tube includes a main body, a power supply module, and at least one light emission element. The main body has first and second heat dissipation zones and an accommodation chamber. The main body has two ends respectively and electrically connected to two conductive terminals. The power supply module is received and retained in the accommodation chamber of the main body. The power supply module includes an enclosure forming a receiving space in which a power supply device is received and retained. The light emission element is coupled to the main body so that heat from the light emission element is directly drained through the main body, while the power supply dissipates heat through natural air flows without relying on the main body, so that there parts do not cause thermal interference with each other and the performance of heat dissipation is improved to thereby extend the lifespan of the light tube. Further, the light emission element and the power supply are of modularized arrangements, which allow the users to conduct maintenance and repairing operation with simple tools by themselves.

The electric rotating machine is provided with an intermediate plate having a power circuit connection portion that is connected with an outgoing lead drawn out from a power circuit unit and an armature winding connection portion that is connected with the power circuit connection portion and an outgoing lead drawn out from an armature winding. The power circuit connection portion and the armature winding connection portion are arranged at desired positions and outgoing leads from the armature winding of the stator are drawn out in such a way as to fall within a given space, so that intermediate connection lines for connecting windings can be shortened. Accordingly, not only the breakage of an intermediate connection line caused by a vibration can be prevented, but also the switching elements can separately be arranged so as to reduce thermal interference between the switching elements; therefore, the switching elements can effectively be cooled.

The thermal interference due to the self heating of transistors constituting a gilbert cell circuit is reduced, thereby largely improving the receiving sensitivity to signals. A mixer circuit composed of a gilbert cell circuit comprises transistors T1 to T6. Each of the transistors T1 to T4 is con figured so that four transistors may be connected in parallel. In a layout on a semiconductor chip, four transistors T1a to T1d and T2a to T2d respectively constituting the transistors T1 and T2 are respectively separated into two pairs, and the respective two pairs are laid out in a crisscross shape so that they are crossed with each other. Similarly, four transistors T3a to T3d and T4a to T4d respectively constituting the transistors T3 and T4 are respectively separated into two pairs, and the respective two pairs are laid out in a crisscross shape so that they are crossed with each other. Thus, the thermal influence applied on the transistors T1 to T4 is uniformed.

In a disc driving apparatus, wherein a laser diode and a laser driver circuit board are mounted on a pickup housing in thermal contact therewith and are disposed adjacent to each other, a heat separation member is provided between the laser diode and the laser driver circuit board for effecting thermal separation therebetween, thereby reducing the thermal interference between the heat-generating elements that are adjacent to each other in the optical pickup. This makes it possible to protect the heat-generating elements from being deteriorated, leading to a reduction in the lifetime thereof, as well as, to improve the reliability thereof.

The invention provides a method for measuring thermophysical property of a columnar thermal insulation material, which is used for determining radial heat conductivity, axial heat conductivity and volume heat capacity of the columnar orthotropic thermal insulation material by measuring temperature variation of one point of a tested sample. The method comprises the following steps: establishing a two-dimension cylindrical coordinate heat transfer model under effect of thermal interference of specific form in cylindrical coordinates; obtaining analytical solution of temperature variation of the orthotropic thermal insulation material in the time domain by adopting Laplace transformation, Hankel transformation and Laplace inverse transformation; analyzing correlation among sensitivity coefficients of the radial heat conductivity, the axial heat conductivity and the volume heat capacity and the influences of temperature variation caused by the parameters through calculation on the sensitivity; establishing a corresponding measurement system, and acquiring the transient response data of the temperature in real time; and meanwhile, determining the radial heat conductivity, the axial heat conductivity and the volume heat capacity of the tested orthotropic thermal insulation material by adopting an L-M parameter estimation method. The method provided by the invention is convenient to implement and adopts simple steps, and meanwhile can be used for measuring the radial heat conductivity, the axial heat conductivity and the volume heat capacity of the columnar thermal insulation material.

A pixel circuit, and a method for operating a pixel circuit, to provide a multiple knee response characteristic. In one embodiment of the invention, one or more feed-through pulse (FTP) signals are transmitted to an integration node to end a first linear integration time period. The FTP signal allows electrons to drain from the integration node to a reset node through a transfer gate. After the first integration period, a second linear integration period is conducted on the pixel circuit, where the photo conversion gain of the pixel circuit becomes reduced under higher illumination conditions due to the drained node. Such operation creates a pixel with a photo response having multiple “knee” points, where each “knee” in the photo response curve will create separate regions whose photo sensitivities can be independently controlled with minimal thermal interference. By setting different voltage levels for the FTP signal and by controlling the integration time periods, the photo-response of the pixel circuit can be easily controlled.

A light-emitting diode (LED) illumination apparatus including a housing, an LED light source, and a power supply unit is provided. The housing has a light source accommodating space, a power supply accommodating space and a thermal isolation channel linked to the atmosphere, wherein the thermal isolation channel is located between the light source accommodating space and the power supply accommodating space. The LED light source is disposed in the light source accommodating space and the power supply unit is disposed in the power supply accommodating space. The thermal isolation channel is capable of preventing thermal interference between the LED light source and the power supply unit.

The present invention provides a phase change non-volatile memory material comprising a base material and at least one non-metallic light element selected from the group consisting of boron, carbon, nitrogen and oxygen, wherein the base material has a composition which corresponds to either that of congruent melting of the type with a minimum melting point or that of eutectic melting within the range of ±0.15 atomic fraction for each constituent element, thereby having a melting temperature of 600° C. or lower. The phase change non-volatile memory material according to the present invention may be utilized to reduce the electric power needed for reset/set operation and thermal interference between memory cells.

An array optical sub-assembly includes a base seat, an integrated circuit, a transparent substrate and a photoelectric element. The integrated circuit and the photoelectric element are bonded respectively to the base seat and the transparent substrate. The base seat and the transparent substrate form a sealed space to protect the elements. The photoelectric element and the integrated circuit are separated to avoid thermal interference between the photoelectric element and the integrated circuit. Therefore total performance is increased and fabrication difficulty is reduced.

The invention relates to a multi-temperature-zone temperature control system and a control method thereof. The control system comprises a plurality of heating units, a feedback signal acquisition unit, a correction processing unit and a control signal formation unit. With the multi-temperature-zone temperature control system and the control method, the change on system temperature rise characteristic generated due to manual factor in a manner of adopting the control signal formation unit influences whole heating process can be avoided, so that the mutual influence by correction factors and automatic control parameters can be further avoided, and the adjustment difficulty can be lowered; the temperatures of a plurality of heating zones can surely rise simultaneously, mutual thermal interference among the heating zones can be reduced, and the temperature can be fast converged and achieve a constant state; and in addition, the number of the feedback signal acquisition units can be decreased, and further the structure of the temperature control system can be simplified.

The Duo Twin-Containers Drinking Disposable Cup system allows customers to order two different beverages—cold and/or hot—and have them served in two independent and disposable receptacles hosted in a single disposable cup. The twin-containers disposable cup system is comprised of four pieces: two containers in the shape of half cups that neatly fit inside a disposable cup; a disposable cup that hosts the two said half-cup shaped receptacles; and a lid with perforations to allow use of straws or direct lips-to-lid consumption in the case of hot drinks and a diametrical extrusive panel that serves to separate at the top the two half cups to prevent. An empty space between the facing flat sides of the two half-cup-shaped receptacles improves thermal insulation, thus allowing the coexistence of hot and cold beverages without noticeable thermal interference.

In order to meet the requirement for enhancing the speed of an optical disk apparatus, it is necessary to have a write strategy for compensating thermal interference during recording at high speed on a high-density optical disk such as BD. However, there has been no known technology for such a write strategy. By shifting the start position and the end position of a recording pulse in accordance with the preceding mark length, the preceding space length, the recording mark length, and the following space length, excellent jitter values have been obtained. Further, by simplifying parameters when the preceding pattern contains the shortest mark and the shortest space which cause large thermal interference, 12× BD recording can be achieved with the number of parameters smaller than double the number of parameters of the conventional 4×4 type write strategy.

The invention belongs to the plant tissue culture technology and provides a plant tissue culture shelf with ballasts installed at the top. The prior art has the following defects: the ballasts of the plant tissue culture shelves continuously emit heat, thus reducing the service lives of the ballasts; adverse effects are caused on tissue culture seedlings; and the ballasts and the light source tubes are difficult to overhaul. The plant tissue culture shelf comprises a shelf body (2), separators (7), support legs (8), a switch (3), fluorescent lights (4) and ballasts (5), wherein a ballast installation plate (1) is arranged at the top of the tissue culture shelf body (2); the ballasts (5) are intensively installed on the installation plate (1); the switch (3) is arranged on the front side of the tissue culture shelf body (2); the switch (3) is a multiposition switch; and the position number of the multiposition switch is the same as the number of layers of the tissue culture shelf. The plant tissue culture shelf has the following advantages: the service lives of the ballasts are prolonged; thermal interference with the tissue culture seedlings is avoided, thus being beneficial to growth of the tissue culture seedlings; and the ballasts and the tissue culture shelf lines are convenient to overhaul.