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2. B16 Standardization of Valves, Flanges, Fittings, and Gaskets

   en.wikipedia.org/wiki/B16_Standardization_of...

   The ASME B16 Standardization of Valves Flanges, Fittings and Gaskets Committee, which operates under ASME ’s Board on Pressure Technology Codes and Standards is responsible for standards covering valves, flanges, pipe fittings, gaskets and valve actuators for use in pressure services. The B16 Standards Committee currently meets once a year in ...

3. Check valve - Wikipedia

   en.wikipedia.org/wiki/Check_valve

   A swing check valve (or tilting disc check valve) is a check valve in which the disc, the movable part to block the flow, swings on a hinge or trunnion, either onto the seat to block reverse flow or off the seat to allow forward flow. The seat opening cross-section may be perpendicular to the centerline between the two ports or at an angle.

4. Butterfly valve - Wikipedia

   en.wikipedia.org/wiki/Butterfly_valve

   A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc ...

5. Semiconductor device fabrication - Wikipedia

   en.wikipedia.org/wiki/Semiconductor_device...

   Semiconductor device fabrication. Semiconductor device fabrication is the process used to manufacture semiconductor devices, typically integrated circuits (ICs) such as computer processors, microcontrollers, and memory chips (such as NAND flash and DRAM ). It is a multiple-step photolithographic and physico-chemical process (with steps such as ...

6. Waveguide flange - Wikipedia

   en.wikipedia.org/wiki/Waveguide_flange

   The choke ditch and the gap between the flange faces together form a somewhat convoluted side-branch to the path of the main guide. This side branch is designed to present a low input impedance where it meets the broad walls of the waveguide, [ 3 ] so that the surface currents there are not obstructed by the gap, but instead flow onto and off ...

7. Wafer (electronics) - Wikipedia

   en.wikipedia.org/wiki/Wafer_(electronics)

   Bottom right: completed solar wafers. In electronics, a wafer (also called a slice or substrate) [ 1] is a thin slice of semiconductor, such as a crystalline silicon (c-Si, silicium), used for the fabrication of integrated circuits and, in photovoltaics, to manufacture solar cells . The wafer serves as the substrate for microelectronic devices ...