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  2. Chemical-mechanical polishing - Wikipedia

    en.wikipedia.org/wiki/Chemical-mechanical_polishing

    A second layer is added to the wafer to create a planar surface. After that, the silicon is thermally oxidized, so the oxide grows in regions where there is no Si 3 N 4 and the growth is between 0.5 and 1.0 μm thick.

  3. Planar transmission line - Wikipedia

    en.wikipedia.org/wiki/Planar_transmission_line

    Planar transmission lines are transmission lines with conductors, or in some cases dielectric (insulating) strips, that are flat, ribbon-shaped lines. They are used to interconnect components on printed circuits and integrated circuits working at microwave frequencies because the planar type fits in well with the manufacturing methods for these ...

  4. Planar process - Wikipedia

    en.wikipedia.org/wiki/Planar_process

    The planar process is a manufacturing process used in the semiconductor industry to build individual components of a transistor, and in turn, connect those transistors together. It is the primary process by which silicon integrated circuit chips are built, and it is the most commonly used method of producing junctions during the manufacture of ...

  5. Microstrip antenna - Wikipedia

    en.wikipedia.org/wiki/Microstrip_antenna

    Microstrip antennas have become very popular in recent decades due to their thin planar profile which can be incorporated into the surfaces of consumer products, aircraft and missiles; their ease of fabrication using printed circuit techniques; the ease of integrating the antenna on the same board with the rest of the circuit, and the ...

  6. Lankford coefficient - Wikipedia

    en.wikipedia.org/wiki/Lankford_coefficient

    However, in the actual press-working, the deep-drawability of steel sheets cannot be determined only by the value of and the measure of planar anisotropy, is more appropriate. In an ordinary cold rolled steel, R 90 {\displaystyle R_{90}} is the highest, and R 45 {\displaystyle R_{45}} is the lowest.

  7. Planar Systems - Wikipedia

    en.wikipedia.org/wiki/Planar_Systems

    Planar Systems, Inc. is an American digital display manufacturing corporation with a facility in Hillsboro, Oregon. Founded in 1983 as a spin-off from Tektronix , it was the first U.S. manufacturer of electroluminescent (EL) digital displays.

  8. Trigonal planar molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Trigonal_planar_molecular...

    In chemistry, trigonal planar is a molecular geometry model with one atom at the center and three atoms at the corners of an equilateral triangle, called peripheral atoms, all in one plane. [1] In an ideal trigonal planar species, all three ligands are identical and all bond angles are 120°. Such species belong to the point group D 3h.

  9. Molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Molecular_geometry

    Trigonal planar: Molecules with the trigonal planar shape are somewhat triangular and in one plane (flat). Consequently, the bond angles are set at 120°. For example, boron trifluoride. Angular: Angular molecules (also called bent or V-shaped) have a non-linear shape. For example, water (H 2 O), which has an angle of about 105°. A water ...