1. Description:

The purpose of this survey is to check whether the DFA's fiducial marks and Upilex trees/holes are in their proper positions.

2. Steps:

SURVEY Z SIDE:

• Position the DFA (z side up) properly under microscope (as shown in the white survey binder located next to the microscope screen) and secure it with dowel pins.
• Open the corresponding blank survey sheet located in \\electron\babar\survey\excel\blanks (e.g., d01f.xlt for layer 1 forward DFA), and save it in \\electron\babar\survey\excel\results under the part's name (e.g., d01f-01.xls for d01f.01) .
• Follow the steps outlined in the white survey binder.

FLIP DFA OVER:

• After the Z-side survey Julie, Susanne, or Doug can turn the DFA over for the Phi-side survey. 

SURVEY PHI SIDE:

• Position the DFA properly (phi side up) under the microscope, as shown in the while survey binder located next to the microscope screen, and secure it with dowel pins.
• Follow the steps outlined in the survey binder and save the results in the corresponding file in \\electron\babar\survey\excel\results.

NOTE: 1. Layer 3 DFA’s must be put into special survey fixtures before they can be surveyed. Susanne or Julie can do this.

2. While surveying class A or class B parts, please wear masks, smocks, and hats.