# Chemical burns, corrosions  degree unspecified at Texas Instrument Incorporated
> OSHA SIR `2025021724` · 2/21/2025 · SHERMAN, TEXAS
## Severity
- **1 hospitalization**
- **Body part:** Thumb(s)
- **Nature of injury:** Chemical burns, corrosions  degree unspecified
## Cause
- **Event:** Exposure through intact tissue
- **Source:** Hydrofluoric acid
- **Secondary source:** Secondary source not applicable
## Employer
- **Name:** Texas Instrument Incorporated
- **Location:** 501 West Shepherd Drive, SHERMAN, TEXAS, 75092
- **NAICS:** 334413
- **Jurisdiction:** 1
## Narrative

On February 21, 2025, an employee was assisting a contractor with the repair of a broken drip leg (90-degree PVC fitting) in the exhaust ventilation duct of the subfab. The employee was exposed to hydrofluoric acid that dropped from the exhaust onto the back of his right thumb. The employee experienced severe burning pain in his right thumb and hand, swelling throughout his hand, and chest pain. The employee was hospitalized.

---
*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*