PHDS COMPANY

Knoxville, TN · Semiconductors · Still private

Ring Contact Detector (RCD), a large-mass low-background germanium semiconductor detector for nuclear physics and radiation detection

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Updated

Sector
Semiconductors
Headquarters
Knoxville, TN
Total capital
$8.8M
Federal grants
$8.8M
14 awards · 2015–2021
Rank in peer group#16 of 72
Private capital raised
None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts
None on recordNo federal contract awards found.
Granted patents
None on recordNo USPTO grants. Applications publish after 18 months.

Capital timeline

2015201620172018201920202021FEDERAL ↑EQUITY ↓Cumulative $8.8M$1M$1M$1M$1M$1.5M$1.1M
2015201720192021FEDERAL ↑EQUITY ↓Cumulative $8.8M$1M$1M$1.5M$1.1M

Latest events

  • Federal grantEnergy · Phase II · Large volume Ring-Contact HPGe Detectors (RCD) for low-background counting arrays and radiopurity-assay$1.1M
  • Federal grantEnergy · Phase II · Dynamic Gamma-ray Imaging for In Vivo Tracking of Microelement Transport Across Plant-Microbial Systems$1.5M
  • Federal grantEnergy · Phase I · Large Volume Ring-Contact HPGe Detectors RCD) for Low-Background Counting Arrays and Radiopurity-Assay$200K
  • Federal grantEnergy · Phase I · Dynamic Gamma-ray Imaging for In Vivo Tracking of Microelement Transport Across Plant-Microbial Systems$225K
  • Federal grantEnergy · Phase II · High Purity 6-inch+ Diameter Single Crystal Germanium Wafers for Dark Matter CCD Photon Detectors$1M
  • Federal grantEnergy · Phase II · Nuclear Physics Gamma-ray Imaging System for Real-Time Rare Isotope Harvesting, Monitoring and Radiochemical Separation – NP Imager$1M
  • Federal grantEnergy · Phase I · High Purity 6-inch+ Diameter Single Crystal Germanium Wafers for Dark Matter CCD Photon Detectors$150K
Show 7 earlier federal awards
  • Federal grantEnergy · Phase II · Pixel Array Germanium Detectors for Nuclear Physics$1M
  • Federal grantEnergy · Phase I · Nuclear Physics Gamma-ray Imaging System for Real-Time Rare Isotope Harvesting, Monitoring and Radiochemical Separation – NP Imager$155K
  • Federal grantEnergy · Phase II · Charge collection physics in very large diameter germanium crystals$1M
  • Federal grantEnergy · Phase I · Pixel Array Germanium Detectors for Nuclear Physics$150K
  • Federal grantEnergy · Phase I · HIgh-Resolution Gamma-ray Imaging and Spectroscopy for Special Nuclear Material Assay GeGI-DNN)$150K
  • Federal grantEnergy · Phase II · High Rate Segmented Germanium Detector System (HRGe)$1M
  • Federal grantEnergy · Phase I · Charge collection physics in very large diameter germanium crystals$150K

Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Standing among 72 peers

Line = median

Semiconductors · Device

  • Federal grants#16 · top 22%

Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.

Founders and team

No founders are linked to this company yet.

Founders appear once a person is matched to the company through its own patents, grants or filings. We never infer people from social profiles.

Checked: USPTO inventors; federal award principal investigators; SEC Form D related persons · Oct 23, 2026

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What it has protected

No granted patents are on record.

USPTO usually publishes applications 18 months after filing, so recent applications may not be visible yet. Patents assigned under a different entity name won’t match.

Checked: USPTO granted patents and published applications · Oct 23, 2026

  • Tortuga Logic, Inc.Similar federal contract value in Semiconductors · null in contracts
  • StabiLock, LLCSimilar federal contract value in Semiconductors · null in contracts
  • Astrapi CorporationSimilar federal contract value in Semiconductors · null in contracts
  • INCOM, INC.Similar federal contract value in Semiconductors · null in contracts
  • N2 Biomedical, LLCSimilar federal contract value in Semiconductors · null in contracts
  • Advanced hCMOS Systems LLCSimilar federal contract value in Semiconductors · null in contracts

Sources

Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.

How to read this page

Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.

Data freshness

SEC Form D filings through . SBIR and STTR awards through .