Parts per million

{
  "id": "MLC-T-SEM-000241",
  "term": "Parts per million",
  "field": "Semiconductors",
  "definition": "A unit of concentration or proportion, representing one part of a substance or quantity per million parts of the whole. In semiconductor manufacturing, PPM is frequently used to quantify the defect rate of components or the concentration of impurities in materials. A defect rate of 10 PPM means that 10 out of every one million manufactured devices are found to be defective.",
  "abbreviation": "PPM",
  "subject": "Test & Reliability",
  "url": "https://mlchart.com/terminology/semiconductors/parts-per-million/"
}