defect density

[dɪˈfekt ˈdensɪti]
nounpl: defect densities
densidade de defeitos
1. A quantitative measure of the number of defects per unit area, volume, or length in a material, product, or software code; commonly used in quality control and manufacturing to assess product reliability
The semiconductor manufacturer reduced defect density by implementing stricter quality control procedures.
O fabricante de semicondutores reduziu a densidade de defeitos ao implementar procedimentos de controle de qualidade mais rigorosos.
2. In software engineering, the ratio of identified bugs or defects to the total lines of code or functional units, used as a metric for software quality
A defect density of less than 0.5 bugs per 1000 lines of code is considered acceptable in the industry.
Uma densidade de defeitos menor que 0,5 erros por 1000 linhas de código é considerada aceitável na indústria.
3. In materials science, the concentration of physical defects such as dislocations, vacancies, or grain boundaries in crystalline structures
The defect density in the silicon wafer was measured using transmission electron microscopy.
A densidade de defeitos na pastilha de silício foi medida usando microscopia eletrônica de transmissão.
This is a technical term widely used in both Brazilian and American industries, particularly in semiconductor manufacturing, automotive, electronics, and software development. In Brazil, quality metrics like defect density have become increasingly important as manufacturing sectors adopt international standards (ISO, Six Sigma). In the USA, the term is standardized and often expressed using metrics like Defects Per Million (DPM) in automotive and electronics industries following frameworks like IATF (International Automotive Task Force).
Synonyms / Sinônimos
defect ratefault densitybug densityerror densityflaw concentration
Antonyms / Antônimos
quality levelreliability rateperfection rate

Regional Variations

General Brazilian
densidade de defeitos
Standard term used in manufacturing, software development, and materials science contexts
São Paulo
densidade de defeitos; taxa de defeitos
Both terms are used interchangeably in industrial and tech hubs
Portugal
densidade de defeitos; densidade de falhas
European Portuguese may use 'falhas' alongside 'defeitos' in some technical contexts
USA
defect density (DPM - Defects Per Million in manufacturing)
Often expressed as parts per million (PPM) in American manufacturing standards

Related Words

quality controldefectreliabilityyield ratequality assuranceSix Sigmadislocationvacancy

Related Idioms & Phrases

keep defect density low
measure defect density
reduce defect density
acceptable defect density threshold
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