RF Safe

Focused-ion-beam-assisted magnet fabrication and manipulation for magnetic field detection applications.

ACS applied materials & interfaces · 2009 · Unclear · Insufficient evidence

← Research stream
UnclearInsufficient evidencePaper 3337

A focused-ion-beam-assisted milling/deposition technique was used to fabricate reduced-size NdFeB magnets and bond them to a thin-film bulk acoustic resonator (FBAR). Electrical characterization showed a downshift in resonance frequency and a reduction in the…

Study snapshot

PublicationACS applied materials & interfaces · 2009
Study typeengineering
Reported directionUnclear
Evidence ratingInsufficient

Abstract

A focused-ion-beam-assisted technique intended for ultrasmall, hard-magnet fabrication has been developed. By means of ion-beam-induced milling and deposition, reduced-size NdFeB magnets were extracted from a macroscopic quarry and bonded to the surface of a thin-film bulk acoustic resonator (FBAR). Electrical characterization of the FBAR before and after bonding of the magnet was carried out, thus observing both a downshifting of the resonance frequency and a reduction of the quality factor of the resonator. The magnetic behavior of the nanomagnet has been confirmed by means of magnetometry measurements based on atomic force microscopy.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeengineering
Effect directionunclear
PopulationNot supplied
Sample sizeNot supplied
ExposureNot supplied
Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

A focused-ion-beam-assisted milling/deposition technique was used to fabricate reduced-size NdFeB magnets and bond them to a thin-film bulk acoustic resonator (FBAR). Electrical characterization showed a downshift in resonance frequency and a reduction in the resonator quality factor after magnet bonding; magnetic behavior was confirmed using AFM-based magnetometry.

Outcomes measured

  • FBAR resonance frequency shift after bonding NdFeB nanomagnet
  • FBAR quality factor change after bonding NdFeB nanomagnet
  • Magnetic behavior confirmation via AFM-based magnetometry
View raw extracted JSON
{
  "study_type": "engineering",
  "exposure": {
    "band": null,
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "FBAR resonance frequency shift after bonding NdFeB nanomagnet",
    "FBAR quality factor change after bonding NdFeB nanomagnet",
    "Magnetic behavior confirmation via AFM-based magnetometry"
  ],
  "main_findings": "A focused-ion-beam-assisted milling/deposition technique was used to fabricate reduced-size NdFeB magnets and bond them to a thin-film bulk acoustic resonator (FBAR). Electrical characterization showed a downshift in resonance frequency and a reduction in the resonator quality factor after magnet bonding; magnetic behavior was confirmed using AFM-based magnetometry.",
  "effect_direction": "unclear",
  "limitations": [],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "focused ion beam",
    "NdFeB",
    "nanomagnet",
    "hard magnet fabrication",
    "thin-film bulk acoustic resonator",
    "FBAR",
    "resonance frequency",
    "quality factor",
    "AFM magnetometry"
  ],
  "suggested_hubs": []
}
AI can be wrong. Always verify against the paper.

AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1021/am800205d
PubMed: 20355970

Read the original paper →

Related papers

← Back to the Research Library