[Joshua, Cece, Ma, Mary, Abhi, Jacob, Dhatri]

The clean room (1119) was re-cleaned on Tuesday (7/14). A particle count measurement was performed on zones 1, 3, and 5. We noticed the burning smell again in 1129. As a precaution, we closed the two doors separating the three rooms.

Particle Count Measurements:

• Zone 1:
  • 0.3 µm: 4873
  • 0.5 µm: 1041
  • 1.0 µm: 124
• Zone 3:
  • 0.3 µm: 708
  • 0.5 µm: 83
  • 1.0 µm: 83
• Zone 5:
  • 0.3 µm: 4165
  • 0.5 µm: 1916
  • 1.0 µm: 583