Strong static magnetic field influences on IC

In summary: So, you might not be able to find much information on this specific topic. However, if you're interested in learning more about the effects of a strong magnetic field on electronic components, there are plenty of resources available online.
  • #1
tendo
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Does anyone have any papers or materials on how strong static magnetic field (7 to 12 Tesla) influence BJT and MOSFETS?
I didn't find many people doing research on this. All I find is some experiment results. It seems transistor parameters change a lot with different azimuth angle due to Hall effect.
I really would like to know more about how it influences amplifiers and mixers.
Thank you.
 
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  • #2
Hi there
welcome to PF :smile:

There's lots of papers online eg
"Magnetothermal effect in semiconductors in strong magnetic fields"
http://www.sciencedirect.com/science/article/pii/0022369776901773

The effect of a strong magnetic field on the impurity photoionization in semiconductors
http://onlinelibrary.wiley.com/doi/10.1002/pssb.2221970118/citedby

The effect of stress and strong magnetic fields on the shallow impurities in semiconductors and the piezoresistance and magnetoresistance for hopping conduction
http://www.researchgate.net/publication/249049827_The_effect_of_stress_and_strong_magnetic_fields_on_the_shallow_impurities_in_semiconductors_and_the_piezoresistance_and_magnetoresistance_for_hopping_conduction

unfortunately that and most others are behind pay per view/membership sites
so plenty of info out there, its just a matter of getting access to it :)

Dave
 
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  • #3
tendo said:
Does anyone have any papers or materials on how strong static magnetic field (7 to 12 Tesla) influence BJT and MOSFETS?
I didn't find many people doing research on this. All I find is some experiment results. It seems transistor parameters change a lot with different azimuth angle due to Hall effect.
I really would like to know more about how it influences amplifiers and mixers.
Thank you.

Welcome to the PF.

In addition to the effects on the semiconductors, the magnetic components in those devices you mention (inductors, transformers, etc.) will be affected too. Those field levels will likely saturate all magnetic components on the device, which will probably keep the devices from working.
 
  • #4
Putting things with ferromagnetic cores in such a strong field sounds like a stupid idea anyway.

Unfortunately, influences of magnetic fields depend on the magnetic field direction and transistor design.
 

Related to Strong static magnetic field influences on IC

1. How does a strong static magnetic field affect integrated circuits (IC)?

A strong static magnetic field can cause disruptions in the flow of electrons within the IC, leading to changes in its behavior and potential damage. This is due to the fact that the magnetic field can induce electrical currents in the IC, causing interference with its normal functioning.

2. What types of ICs are most susceptible to the effects of a strong static magnetic field?

ICs with smaller dimensions and higher operating frequencies are more likely to be affected by a strong static magnetic field. This is because the smaller size and higher frequency make them more sensitive to external electromagnetic fields.

3. How can the effects of a strong static magnetic field on ICs be mitigated?

There are several ways to mitigate the effects of a strong static magnetic field on ICs. One method is to shield the IC with a material that can block or redirect the magnetic field. Another approach is to design the IC with special layouts and structures that can reduce its sensitivity to magnetic fields.

4. Are there any safety concerns related to strong static magnetic fields and ICs?

Yes, there are potential safety concerns when strong static magnetic fields are present around ICs. These fields can interfere with medical devices, such as pacemakers, and can also pose a risk to individuals with metal implants or devices.

5. How can the effects of a strong static magnetic field on ICs be tested?

ICs can be tested for their susceptibility to strong static magnetic fields using specialized equipment such as magnetic field generators and probes. These tests can help identify potential issues and allow for adjustments to be made in the design or placement of the IC to minimize any negative effects.

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