Abstract:
A method of forming a planarized self-aligned integrated circuit structure suitable for forming CMOS circuitry is provided. The method involves using first and second barrier layers to define the dopant regions for first and second wells, respectively. The first barrier can be formed of a silicon nitride layer covered with a silicon oxide layer. The first barrier layer prevents doping of the silicon wafer except in those regions not covered by the first barrier layer (i.e., the first wells). The second barrier layer is formed by oxidizing the silicon wafer. Only the regions not covered by the first layer are oxidized. The second wells are defined by the second barrier layer. Because some of the silicon of the first wells is consumed to form the second barrier layer, the height of the first wells following the formation of the second barrier layer is less than that of the second wells. To equalize the height of the first and second wells, and thereby planarize the wafer, the height of the second wells is reduced to substantially the same height as the first wells. The second wells can be reduced to the same height as the first wells using wet silicon etching, dry silicon etching or oxidation followed by an oxide removal step.
Abstract:
An electrode structure for use with a surface acoustic wave device which has the same velocity as the transducers and the gratings forming the device but no reflections and which can be used to vary structure reflectivity.
Abstract:
This invention relates to a gas fire appliance of the kind which simulates an open fire burning solid fuel. In accordance with the invention such a gas fire appliance comprises a casing in which is mounted a support on which solid fuel simulating elements are supported, a transparent panel above and in front of said solid fuel simulating elements and a burner assembly. The burner assembly comprises a heater burner portion having burners disposed in at least two independently controllable sections together with a flame effect burner portion which also has burners disposed in at least two independently controllable sections. Conveniently the heater burner portion and the flame effect burner portion each has two sections namely an inner section and an outer section disposed on opposite sides of the respective inner section.
Abstract:
The present invention provides apparatus featuring a check valve featuring a duckbill valve configured to provide fluid and particulate; and an insert having a base portion configured to seat the insert inside the duckbill valve, and a W-shaped portion configured with an opening to pass the fluid and particulate through the duckbill valve and also configured to provide support for walls of the duckbill valve in response to back pressure caused by the fluid and particulate.
Abstract:
The present invention provides apparatus featuring a check valve featuring a duckbill valve configured to provide fluid and particulate; and an insert having a base portion configured to seat the insert inside the duckbill valve, and a W-shaped portion configured with an opening to pass the fluid and particulate through the duckbill valve and also configured to provide support for walls of the duckbill valve in response to back pressure caused by the fluid and particulate.
Abstract:
A graphical production system produces pixel bar charts, in various embodiments. In an embodiment, a pixel bar chart is constructed that may include multiple bars with substantially equal widths and potentially variable heights to enable visual data analysis. A bar may include a number of pixel units corresponding to a volume of data records represented within the bar. Selected visual indicators are displayed within the pixel units of the bar, where a selected visual indicator represents a value of an attribute of a data record represented by the pixel unit. In an embodiment, the pixel units may be ordered within a bar in a particular sequence (e.g., ascending, descending or some other order). Further, in an embodiment, the bar width is determined to minimize the amount of padding. In an embodiment, a visual indicator scale is displayed to indicate values associated with each visual indicator.
Abstract:
Flexible container discharge apparatus for a flexible bulk container as hereinbefore defined, comprises a base structure, a common movable container support element for supporting the flexible bulk container and hingably connected to the base structure for movement relative thereto, and a plurality of pivotable urging elements which project in a direction away from the common support element and which are directly or indirectly connected to the common support element. With a flexible bulk container positioned on the common support element, as flowable material within the container is discharged, the urging elements pivot towards each other, pressing the flowable material towards an outlet of the container. A method of discharging material from a flexible bulk container is also provided.
Abstract:
Described herein are representative embodiments of amplifier bypass paths and amplifiers using such bypass paths. In certain exemplary embodiments, the amplifiers are operated as linear power amplifiers, such as may be used in wireless communications systems. According to one exemplary embodiment, an amplifier circuit is described comprising an amplifier path coupled between a first node and a second node. The amplifier path comprises one or more amplifiers. The circuit further comprises a bypass path coupled between the first node and the second node. The bypass path comprises two impedance inverting networks and a ground path that is selectively coupled to the bypass path at a third node located between the two impedance inverting networks. In this embodiment, the third node is configured to remain coupled to the two impedance inverting networks when the ground path is coupled to the bypass path.
Abstract:
A graphical production system produces pixel bar charts, in various embodiments. In an embodiment, a pixel bar chart is constructed that may include multiple bars with substantially equal widths and potentially variable heights to enable visual data analysis. A bar may include a number of pixel units corresponding to a volume of data records represented within the bar. Selected visual indicators are displayed within the pixel units of the bar, where a selected visual indicator represents a value of an attribute of a data record represented by the pixel unit. In an embodiment, the pixel units may be ordered within a bar in a particular sequence (e.g., ascending, descending or some other order). Further, in an embodiment, the bar width is determined to minimize the amount of padding. In an embodiment, a visual indicator scale is displayed to indicate values associated with each visual indicator.
Abstract:
A method for generating a pixel-oriented graph provides visual boundaries for representing aggregate information. The present method for generating a pixel-oriented graph includes determining a visual boundary for representing an aggregate of a set of information depicted in the pixel-oriented graph and constructing a set of pixel blocks that represent the information such that the pixel blocks are visually distinguished by the visual boundary. A method according to the present techniques employs a visual weight to classify labels and high weight information is shown and other information is made invisible and hidden in the property of a graph.