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Inspection Detail
Inspection: 108779810 - Unitrode Integrated Circuits Corp.
Inspection Information - Office: Concord Area Office
Site Address:
Unitrode Integrated Circuits Corp.
7 Continental Blvd.
Merrimack, NH 03054
Mailing Address:
, , 00000
Union Status: NonUnion
SIC:3674
NAICS: 0
Inspection Type: Referral
Scope: Partial
Advanced Notice: N
Ownership: Private
Safety/Health: Safety
Close Conference: 02/02/1994
Emphasis:
Case Closed: 12/16/1994
| Type | Activity Nr | Safety | Health |
|---|---|---|---|
| Referral | 902571660 | Yes |
| Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
|---|---|---|---|---|---|---|
| Initial Violations | 11 | 1 | 12 | |||
| Current Violations | 11 | 1 | 12 | |||
| Initial Penalty | $40,625 | $0 | $0 | $0 | $0 | $40,625 |
| Current Penalty | $24,375 | $0 | $0 | $0 | $0 | $24,375 |
| FTA Penalty | $0 | $0 | $0 | $0 | $0 | $0 |
| # | Citation ID | Citaton Type | Standard Cited | Issuance Date | Abatement Due Date | Current Penalty | Initial Penalty | FTA Penalty | Contest | Latest Event | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 01001 | Serious | 19100120 Q01 | 03/30/1994 | 10/25/1994 | $3,000 | $5,000 | $0 | I - Informal Settlement | ||
| 2. | 01002A | Serious | 19100120 Q03 III | 03/30/1994 | 10/25/1994 | $1,275 | $2,125 | $0 | I - Informal Settlement | ||
| 3. | 01002B | Serious | 19100120 Q10 | 03/30/1994 | 10/25/1994 | $0 | $0 | $0 | I - Informal Settlement | ||
| 4. | 01003 | Serious | 19100120 Q03 IV | 03/30/1994 | 08/25/1994 | $3,000 | $5,000 | $0 | I - Informal Settlement | ||
| 5. | 01004 | Serious | 19100120 Q09 I | 03/30/1994 | 05/02/1994 | $1,275 | $2,125 | $0 | I - Informal Settlement | ||
| 6. | 01005 | Serious | 19100132 A | 03/30/1994 | 11/07/1994 | $3,000 | $5,000 | $0 | I - Informal Settlement | ||
| 7. | 01006A | Serious | 19100134 A02 | 03/30/1994 | 10/14/1994 | $1,275 | $2,125 | $0 | I - Informal Settlement | ||
| 8. | 01006B | Serious | 19100134 E01 | 03/30/1994 | 10/14/1994 | $0 | $0 | $0 | I - Informal Settlement | ||
| 9. | 01006C | Serious | 19100134 E03 | 03/30/1994 | 10/14/1994 | $0 | $0 | $0 | I - Informal Settlement | ||
| 10. | 01007 | Serious | 19100134 E05 | 03/30/1994 | 10/14/1994 | $3,000 | $5,000 | $0 | I - Informal Settlement | ||
| 11. | 01008 | Serious | 19100147 C04 I | 03/30/1994 | 10/28/1994 | $3,000 | $5,000 | $0 | I - Informal Settlement | ||
| 12. | 01009 | Serious | 19100147 C06 I | 03/30/1994 | 10/28/1994 | $1,275 | $2,125 | $0 | I - Informal Settlement | ||
| 13. | 01010 | Serious | 19100147 C07 I | 03/30/1994 | 10/28/1994 | $3,000 | $5,000 | $0 | I - Informal Settlement | ||
| 14. | 01011 | Serious | 19101200 H02 III | 03/30/1994 | 08/29/1994 | $1,275 | $2,125 | $0 | I - Informal Settlement | ||
| 15. | 02001 | Other | 19100147 C08 | 03/30/1994 | 05/16/1994 | $0 | $0 | $0 | I - Informal Settlement |
Investigation Summary
Employee #1 was cleaning the exhaust lines of an EPI reactor. The exhaust lines are normally devoid of oxygen after being purged with nitrogen. When being cleaned, the exhaust lines are exposed to air and the deposits inside of the exhaust lines become pyrophoric. While removing a filter for the vacuum pump on the exhaust line, Employee #1 slipped with a screw driver and contacted some of the pyrophoric deposits. An explosion occurred. Employee #1 sustained serious burn injuries and was hospitalized.
Keywords: BURN, EXHAUST SYSTEM, REACTOR, CLEANING, SLIP, EXPLOSION, HAND TOOL
| # | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
|---|---|---|---|---|---|---|
| 1 | 108779810 | Hospitalized injury | Burn(Chemical) | Occupation not reported |