etching powder - significado y definición. Qué es etching powder
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Qué (quién) es etching powder - definición

Etching (plasma); Etching (isotropic)

Etching (microfabrication)         
  • An anisotropic wet etch on a silicon wafer creates a cavity with a trapezoidal cross-section.  The bottom of the cavity is a {100} plane (see [[Miller indices]]), and the sides are {111} planes.  The blue material is an etch mask, and the green material is silicon.
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  • Etching, simplified animation of etchant action on a copper sheet with mask
  • Simplified illustration of dry etching using positive photoresist during a photolithography process in semiconductor microfabrication. Note: Not to scale.
TECHNIQUE IN MICROFABRICATION
Etching (microfab); Wafer etching; Chemical polishing; Acid polishing
Etching is used in microfabrication to chemically remove layers from the surface of a wafer during manufacturing. Etching is a critically important process module, and every wafer undergoes many etching steps before it is complete.
etching         
  • Colored etching and aquatint on paper
  • Relief etching by William Blake, frontispiece to ''[[America a Prophecy]]'' (Copy A, printed 1795)
  • Selection of early etched printing plates from the [[British Museum]]
  • Photograph of the necklace in question]]</ref>
  • Cylinder press for printing etchings
  • Example of foul bite in acid etching
  • Etching by [[Jacques Bellange]], ''Gardener with basket'' c.&nbsp;1612
  • Example of sugar lift and spit bite effect
  • Steps in the typical technique
  • Self-portrait etched by Wenceslaus Hollar
INTAGLIO PRINTMAKING TECHNIQUE
Etcher; Etchings; Etching (art); Relief etching; Illuminated printing; Échoppe; Echoppe; Stopping out; Foul-biting; Come up and see my etchings; Eau-forte; Copperplate etching; Soft ground etching; Soft-ground etching; Foul biting; Spit bite; Copper-plate; Stopping-out varnish; Acid etch; Sugar lift; Acquaforte
¦ noun
1. the art or process of etching.
2. a print produced by etching.
Etcher         
  • Colored etching and aquatint on paper
  • Relief etching by William Blake, frontispiece to ''[[America a Prophecy]]'' (Copy A, printed 1795)
  • Selection of early etched printing plates from the [[British Museum]]
  • Photograph of the necklace in question]]</ref>
  • Cylinder press for printing etchings
  • Example of foul bite in acid etching
  • Etching by [[Jacques Bellange]], ''Gardener with basket'' c.&nbsp;1612
  • Example of sugar lift and spit bite effect
  • Steps in the typical technique
  • Self-portrait etched by Wenceslaus Hollar
INTAGLIO PRINTMAKING TECHNIQUE
Etcher; Etchings; Etching (art); Relief etching; Illuminated printing; Échoppe; Echoppe; Stopping out; Foul-biting; Come up and see my etchings; Eau-forte; Copperplate etching; Soft ground etching; Soft-ground etching; Foul biting; Spit bite; Copper-plate; Stopping-out varnish; Acid etch; Sugar lift; Acquaforte
·noun One who etches.

Wikipedia

Isotropic etching

Isotropic etching is a method commonly used in semiconductors to remove material from a substrate via a chemical process using an etchant substance. The etchant may be in liquid-, gas- or plasma-phase, although liquid etchants such as buffered hydrofluoric acid (BHF) for silicon dioxide etching are more often used. Unlike anisotropic etching, isotropic etching does not etch in a single direction, but rather etches in multiple directions within the substrate. Any horizontal component of the etch direction may therefore result in undercutting of patterned areas, and significant changes to device characteristics. Isotropic etching may occur unavoidably, or it may be desirable for process reasons.