electrical installation

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Across
  1. 1. a ductile transition metal of golden-pink color,
  2. 3. A chemical substance (liquid, gel or solid) that removes the oxide film from metal to ensure high-quality soldering.
  3. 6. A chemical process for removing excess copper from a circuit board to produce a trace pattern.
  4. 7. This is a metallized hole in a printed circuit board that serves to electrically connect conductors (tracks) located on different layers.
  5. 9. This is a metallized area on the surface or inside a printed circuit board, designed for connecting the leads of electronic components (microcircuits, resistors, etc.) by soldering.
  6. 11. Провод, устанавливаемый вручную для соединения точек в обход поврежденной дорожки или ошибки трассировки.
  7. 13. The total resistance of a conductor (track) to alternating current.
  8. 15. miniature electronic device made on a semiconductor crystal, which contains many combined components (transistors, diodes, resistors) in a non-separable housing.
  9. 16. is a large area filled with copper that is used to connect multiple contacts to a single circuit (usually GND or power).
  10. 17. stores electrical energy and charge
  11. 19. process of applying a thin layer of tin or tin alloys to the surface of metal products (usually steel, copper) to protect against corrosion, increase heat resistance and improve adhesion.
  12. 20. The most common base material for printed circuit boards (consists of layers of fiberglass impregnated with epoxy resin).
  13. 23. a substance with low electrical conductivity that can be polarized in an external electric field
  14. 25. passive component in an electrical circuit that creates a fixed or variable resistance to electric current
  15. 26. low-melting metal alloy used to join parts by soldering at a temperature below the melting point of the base
  16. 27. semiconductor component that controls electric current in a circuit using a small input signal
Down
  1. 2. A flat flexible cable that is often connected to an edge connector on a printed circuit board to communicate with other modules.
  2. 3. a graphical representation of an electronic component on a printed circuit board
  3. 4. protective device that breaks an electrical circuit when the current exceeds the permissible limit (overload or short circuit) by melting the insert.
  4. 5. a layer of non-conductive epoxy paint applied to a printed circuit board to mark components, logos, polarity, test points, and other text or graphic information
  5. 8. A drawing or file that defines the arrangement of layers, tracks, holes, and components on a board.
  6. 10. a thin conductive path made of copper foil that connects electronic components together.
  7. 12. Pine resin used as a flux to improve solder flow and clean the surface during soldering.
  8. 14. is the process of making holes (through or blind) in various materials using a rotating cutting tool, most often a twist drill
  9. 16. A light-sensitive material used to transfer a design onto a circuit board.
  10. 18. electronic component that allows electric current to flow in only one direction, blocking it in the opposite direction
  11. 21. Surface mount component
  12. 22. Sheets of bonding material (glass cloth impregnated with partially cured resin) used to bond layers together in multilayer boards.
  13. 24. process of creating a permanent connection between metal parts by introducing molten solder between them, which has a lower melting point than the materials being joined.