Diodes, solid-state (e.g., germanium, silicon), manufacturing · North Carolina

Wolfspeed - Durham, NC

Name: Wolfspeed - Durham, NC Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Durham, NC · ~3,013 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

B
Good Safety Record: 1.7
Avg TCR: 3.3
Industry avg: 1
Fatality

Subscribe to safety-record updates (RSS)

The verdict

Wolfspeed - Durham, NC runs at 51% of its industry's injury rate - safer than the typical Diodes, solid-state (e.g., germanium, silicon), manufacturing workplace, earning a grade B.

Wolfspeed - Durham, NC: 1.7 TCR = 51% of Diodes, solid-state (e.g., germanium, silicon), manufacturing BLS 3.3 · 3y Form 300A (see methodology below)

Wolfspeed - Durham, NC safety composite

Wolfspeed - Durham, NC scores strongest on total case rate (tcr) (safer than 27% of same-industry peers) and weakest on fatalities (safer than 1%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

19/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 1.67 per 100 workers

Safer than 27% of industry peers
DART rate: F 1.15 per 100 workers

Safer than 22% of industry peers
Fatalities: F 1

Safer than 1% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−0.6

2022→2024

Wolfspeed - Durham, NC injury rate improved

Wolfspeed - Durham, NC's TCR fell 0.6 from 1.9 in 2022 to 1.4 in 2024. Peak filing year was 2022 at 1.9 TCR. In 2024, DART was 0.69× this establishment's average TCR (severity share of cases).

2022=1.9 · 2023=1.7 · 2024=1.4

OSHA ITA Form 300A scorecard

Establishment book 334413 · Durham, NC AT/BELOW-IND · LARGE

Grade B · TCR 1.7 · 51% of ind

DART 1.1 DART
RANK #11/15
PHOTO Robert Bosch Semicon…
BOOK 3y book
INJ 134 inj
SIZE ~3,013 FTE

Nearest TCR peer: Robert Bosch Semiconductor LLC (0.0 TCR gap)

Read with this employer → · Industry book → · North Carolina employers → · Look up another →

This site

1.7
Robert Bosch S

1.7
Coherent - AMD

1.7
ON Semiconduct

1.7
Aloclek

1.6

What this shows Wolfspeed - Durham, NC averages 1.7 TCR (51% of the Diodes, solid-state (e.g., germanium, silicon), manufacturing BLS benchmark).

Wolfspeed - Durham, NC TCR series: 2022=1.9 · 2023=1.7 · 2024=1.4 · BLS 3.3

Where Wolfspeed - Durham, NC falls in its industry

437 Diodes, solid-state (e.g., ger establishments

Safer than 27% of graded establishments in this industry, whose median TCR is 0.9.

Grade B

More dangerous than peersSafer than peers

Narrower to North Carolina alone (the establishments it most directly competes with for workers and contracts): ranked #11 safest of 15 Diodes, solid-state (e.g., ger employers in North Carolina.

Wolfspeed - Durham, NC (3,013 employees, TCR 1.7) among 29 same-industry peers, split at the industry median of 216 employees and a TCR of 0.9

Wolfspeed - Durham, NC has more employees than the Diodes, solid-state (e.g., germanium, si median and a higher injury rate than the industry's median TCR of 0.9. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year	TCR	DART	Injuries	Illnesses	Fatalities
2024	1.4	1.1	39	1	0
2023	1.7	1.3	47	3	0
2022	1.9	1.3	48	0	1

OSHA ITA peer cross-reference

Establishment peer ledger

334413 · NC · Durham

437 Diodes, solid-state (e.g., germanium, silicon), manufacturing employers nationwide with a credible TCR · 16,981 rated employers in North Carolina with headcount on file · 530 employers in Durham, NC · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	Robert Bosch Semiconductor LLC	ROSEVILLE, CA	1.7 TCR
NAICS-TCR	Coherent - AMD (Pine Brook)	PINE BROOK, NJ	1.7 TCR
NAICS-TCR	ON Semiconductor Western Ave	SOUTH PORTLAND, ME	1.7 TCR
NAICS-TCR	Aloclek	HILLSBORO, OR	1.6 TCR
STATE-SIZE	BCBSNC Telecommuters	DURHAM	3,033 FTE
STATE-SIZE	ELECT-ELECTIONS	CHARLOTTE	2,983 FTE
STATE-SIZE	GSK Field and Pharma Sales Field and Remote Workers	RESEARCH TRIANGLE PARK	3,052 FTE
STATE-SIZE	East Carolina University Health Sciences Campus	GREENVILLE	2,957 FTE
CITY-NEAR	Duke University	Durham	23,871 FTE
CITY-NEAR	Duke University Hospital	Durham	11,048 FTE
CITY-NEAR	GSK/ViiV Pharma Field Sales	Durham	2,700 FTE
CITY-NEAR	SMB	Durham	2,353 FTE
NAT-TCR	Reliant Ag Custom Harvesting, Inc.	Kingsburg, CA	1.7 TCR
NAT-TCR	Montgomery AL FXFE-MGM	Montgomery, AL	1.7 TCR
NAT-TCR	Momentous Sports Center, LP	Irvine, CA	1.7 TCR
NAT-TCR	Schrimpf Landscaping, Inc.	Jefferson City, MO	1.7 TCR
NAT-SIZE	Genesis HealthCare System	Zanesville, OH	3,011 FTE
NAT-SIZE	North America Fulfillment Centers (FCs) : RIC2	Chester, VA	3,011 FTE
NAT-SIZE	Construction Division	Indianapolis, IN	3,016 FTE
NAT-SIZE	Northside Hospital Cherokee	Canton, GA	3,016 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023, 2022. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.