gallium arsenide: meaning, definition, pronunciation and examples
LowTechnical/Scientific
Quick answer
What does “gallium arsenide” mean?
A compound semiconductor material consisting of gallium and arsenic atoms in a 1:1 ratio.
Audio
Pronunciation
Definition
Meaning and Definition
A compound semiconductor material consisting of gallium and arsenic atoms in a 1:1 ratio.
A crystalline semiconductor used in high-speed electronic devices, optoelectronics, and solar cells due to its superior electron mobility compared to silicon.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Pronunciation differs slightly (see IPA). Spelling is identical.
Connotations
Identical technical connotations in both varieties.
Frequency
Equally low frequency in both varieties, confined to technical contexts.
Grammar
How to Use “gallium arsenide” in a Sentence
[gallium arsenide] + [noun] (e.g., gallium arsenide chip)[verb] + [gallium arsenide] (e.g., etch gallium arsenide)[preposition] + [gallium arsenide] (e.g., on gallium arsenide)Vocabulary
Collocations
Examples
Examples of “gallium arsenide” in a Sentence
adjective
British English
- The gallium-arsenide-based circuit demonstrated superior speed.
- They specialise in gallium-arsenide wafer production.
American English
- The gallium-arsenide-based circuit demonstrated superior speed.
- They specialize in gallium-arsenide wafer production.
Usage
Meaning in Context
Business
Used in reports or discussions about semiconductor manufacturing, photovoltaics, or tech investment.
Academic
Common in materials science, physics, and electrical engineering papers and textbooks.
Everyday
Virtually never used in everyday conversation.
Technical
The primary context; used in research, engineering specifications, and technical documentation.
Watch out
Common Mistakes When Using “gallium arsenide”
- Misspelling as 'gallium arsenic'.
- Pronouncing 'arsenide' with a /z/ sound (it's /s/).
- Using it as a countable noun (e.g., 'a gallium arsenide' is incorrect).
FAQ
Frequently Asked Questions
Yes, the arsenic component makes it toxic, requiring careful handling during manufacturing and disposal.
Silicon is far cheaper, more abundant, and its manufacturing processes are extremely mature. GaAs is used where its performance benefits justify the higher cost, such as in high-frequency or optoelectronic applications.
It refers to gallium's position in Group III (13) and arsenic's in Group V (15) of the periodic table. Gallium arsenide is a classic III-V compound semiconductor.
In British English: /ˈɡæliəm ˈɑːsənaɪd/. In American English: /ˈɡæliəm ˈɑːrsənaɪd/. The main difference is the rhotic /r/ in 'arsenide' in American pronunciation.
A compound semiconductor material consisting of gallium and arsenic atoms in a 1:1 ratio.
Gallium arsenide is usually technical/scientific in register.
Learning
Memory Aids
Mnemonic
Think: 'Gallium' (element Ga) teams up with 'Arsenide' (from arsenic, As) to form GaAs, a fast semiconductor.
Conceptual Metaphor
A HIGHWAY FOR ELECTRONS (due to its high electron mobility).
Practice
Quiz
What is a primary advantage of gallium arsenide over silicon?