**EXHIBIT 11**

 

**DUPONTPHOTOMASKS, INC.**

 

## **EARNINGS PER SHARE COMPUTATION**

 

**(Dollars inthousands, except per share amounts)**

**(unaudited)**

** **
|                                        |   | **Basic**                             |       | **Diluted** |       |
|---------------------------------------------|--------|---------------------------------------|------------|-------------|------------|
|                                        |   | **Quarter Ended September 30, 2001**  |       |
|                                        |   |                                  |       |        |       |
| Weighted  average shares outstanding        |   | 17,835,283                            |       | 17,835,283  |       |
|                                        |   |                                  |       |        |       |
| Net income                                  |   | $                                     | (2,983     | )           | $          | (2,983 | ) |
|                                        |   |                                  |       |        |       |
| Earnings per  share                         |   | $                                     | (0.17      | )           | $          | (0.17 | ) |
|                                        |   |                                  |       |        |       |
|                                        |   |                                  | ** ** |        | ** ** |
|                                        |   | **Basic**                             |       | **Diluted** | ** ** |
|                                        |   | **Quarter  Ended September 30, 2000** | ** ** |
|                                        |   |                                  |       |        |       |
| Weighted  average shares outstanding        |   | 16,899,419                            |       | 16,899,419  |       |
| Dilutive effect  of stock performance plans |   | -                                     |       | 757,638     |       |
| Dilutive effect  of convertible notes       |   | -                                     |       | 941,088     |       |
|                                        |   |                                  |       |        |       |
| Shares for EPS                              |   | 16,899,419                            |       | 18,598,145  |       |
|                                        |   |                                  |       |        |       |
| Net income for  the period                  |   | $                                     | 10,163     |        | $          | 10,163 |   |
|                                        |   |                                  |       |        |       |
| Dilutive effect  of convertible notes       |   | -                                     |       | 92          |       |
|                                        |   |                                  |       |        |       |
| Net income for  EPS                         |   | $                                     | 10,163     |        | $          | 10,255 |   |
|                                        |   |                                  |       |        |       |
| Earnings per  share                         |   | $                                     | 0.58       |        | $          | 0.55 |   |

 

At September 30, 2000 and 2001,we had outstanding anti–dilutive commitments under our stock performanceplans covering 17,950 and 3,644,011 shares, respectively.