Precursor

{
  "id": "MLC-T-IND-004480",
  "term": "Precursor",
  "field": "Industrial and trades",
  "definition": "A chemical compound or material that is transformed into another substance during a manufacturing process, particularly in semiconductor fabrication. In processes like chemical vapor deposition (CVD), precursors are volatile substances that react on a substrate surface to form a desired thin film, such as a dielectric or conductive layer. For example, silane (SiH4) is a common precursor used to deposit silicon dioxide or silicon nitride films on wafers.",
  "subject": "Electrical engineering",
  "translations": {
    "de": "Vorläufer",
    "es": "precursor",
    "fr": "précurseur"
  },
  "url": "https://mlchart.com/terminology/industrial/precursor/"
}