door OOOVincentOOO » do 14 mei 2026, 10:59
flappelap schreef: ↑do 14 mei 2026, 08:35
OOOVincentOOO schreef: ↑ma 11 mei 2026, 10:19
In de halfgeleider industrie waarin ik werk bouwen we MOCVD machines welke Gallium Nitride (GaN) deponeren op wafers. GaN halfgeleiders zijn energie zuiniger. Zonder gebruik van QFT waren de ontwikkelingen in GaN electronca niet mogelijk.
Waarom kan dat niet met "gewone" QM?
Je hebt gelijk misschien heb ik teveel op intuïtie gereageerd. Ik heb nog nagezocht op met oa. AI. Ik was in de veronderstelling dat deze nieuwere generatie halfgeleiders ook QFT nodig was.
Code: Selecteer alles
Q: in the semiconductor industry is quantum field theory needed in GaN electronics design on chiplevel and material science? Please render answer so I can copy paste to a forum
A: Quantum Field Theory (QFT) is generally not used directly in day-to-day GaN electronics chip design, but it does sit at the very bottom of the physics stack behind semiconductor theory and advanced material science.
A practical way to look at it is:
Circuit/chip designers working on GaN HEMTs, MMICs, power electronics, RF amplifiers, etc. mostly use:
semiconductor device physics
quantum mechanics
solid-state physics
electromagnetics
TCAD simulations
compact models
They usually do not solve QFT equations.
Material scientists working on epitaxy, defects, crystal growth, polarization effects, traps, interfaces, and band structure also mostly rely on:
condensed matter physics
quantum mechanics
statistical mechanics
density functional theory (DFT)
computational materials science
Again, normally not full QFT in the particle-physics sense.
Where QFT does enter indirectly:
Modern condensed matter physics is formally built using many-body quantum theory and second quantization, which are closely related to QFT methods.
Advanced topics like:
electron-phonon interactions
excitons
many-body effects
quasiparticles
Green’s functions
superconductivity
advanced band structure calculations
often use mathematical techniques originating from quantum field theory.
For GaN specifically:
Polarization physics
Wide bandgap behavior
High electron mobility
Defect/trap physics
Hot electron effects
are important, but engineers usually handle these through semiconductor models and simulation tools rather than explicit QFT frameworks.
So the short answer is:
GaN chip designers generally do not need quantum field theory directly.
Advanced quantum mechanics and solid-state physics are much more important.
However, some high-end semiconductor material science and theoretical condensed matter research use mathematical methods that overlap strongly with QFT.
An analogy:
Using a GaN transistor does not require QFT in the same way that designing a bridge does not require general relativity.
But at the deepest theoretical level, the foundations are connected.
For most semiconductor engineers in industry:
Semiconductor physics
Solid-state physics
Electromagnetics
Numerical simulation
Materials science
are vastly more important than formal QFT.
[quote=flappelap post_id=1277866 time=1778740505 user_id=79501]
[quote=OOOVincentOOO post_id=1277843 time=1778487541 user_id=74110]
In de halfgeleider industrie waarin ik werk bouwen we MOCVD machines welke Gallium Nitride (GaN) deponeren op wafers. GaN halfgeleiders zijn energie zuiniger. Zonder gebruik van QFT waren de ontwikkelingen in GaN electronca niet mogelijk.
[/quote]
Waarom kan dat niet met "gewone" QM?
[/quote]
Je hebt gelijk misschien heb ik teveel op intuïtie gereageerd. Ik heb nog nagezocht op met oa. AI. Ik was in de veronderstelling dat deze nieuwere generatie halfgeleiders ook QFT nodig was.
[code]Q: in the semiconductor industry is quantum field theory needed in GaN electronics design on chiplevel and material science? Please render answer so I can copy paste to a forum
A: Quantum Field Theory (QFT) is generally not used directly in day-to-day GaN electronics chip design, but it does sit at the very bottom of the physics stack behind semiconductor theory and advanced material science.
A practical way to look at it is:
Circuit/chip designers working on GaN HEMTs, MMICs, power electronics, RF amplifiers, etc. mostly use:
semiconductor device physics
quantum mechanics
solid-state physics
electromagnetics
TCAD simulations
compact models
They usually do not solve QFT equations.
Material scientists working on epitaxy, defects, crystal growth, polarization effects, traps, interfaces, and band structure also mostly rely on:
condensed matter physics
quantum mechanics
statistical mechanics
density functional theory (DFT)
computational materials science
Again, normally not full QFT in the particle-physics sense.
Where QFT does enter indirectly:
Modern condensed matter physics is formally built using many-body quantum theory and second quantization, which are closely related to QFT methods.
Advanced topics like:
electron-phonon interactions
excitons
many-body effects
quasiparticles
Green’s functions
superconductivity
advanced band structure calculations
often use mathematical techniques originating from quantum field theory.
For GaN specifically:
Polarization physics
Wide bandgap behavior
High electron mobility
Defect/trap physics
Hot electron effects
are important, but engineers usually handle these through semiconductor models and simulation tools rather than explicit QFT frameworks.
So the short answer is:
GaN chip designers generally do not need quantum field theory directly.
Advanced quantum mechanics and solid-state physics are much more important.
However, some high-end semiconductor material science and theoretical condensed matter research use mathematical methods that overlap strongly with QFT.
An analogy:
Using a GaN transistor does not require QFT in the same way that designing a bridge does not require general relativity.
But at the deepest theoretical level, the foundations are connected.
For most semiconductor engineers in industry:
Semiconductor physics
Solid-state physics
Electromagnetics
Numerical simulation
Materials science
are vastly more important than formal QFT.[/code]
