RESUMO
A novel approach, to the best of our knowledge, is presented for assessing silicon wafer surface profiles using an interferometer and vertically rotatable wafer holder. This approach significantly enhances precision and reduces costs, and outperforms traditional techniques in measurement consistency and accuracy. It effectively reduces sample distortion and positional shifts owing to the removal and reinstallation of the wafers. Using this method, a global backsurface-referenced ideal range of 0.385 µm, warp of 0.193 µm, and other parameters were obtained, demonstrating its practicality in efficiently capturing key surface profile metrics for silicon wafers. This innovation promises substantial improvements in high-volume wafer surface profile testing, overcoming prevalent technological challenges in this industry.
RESUMO
OBJECTIVE: To observe the therapeutic effect of antihyperlipidemic decoction on hyperlipemia. METHODS: 77 hyperlipemia patients are selected and randomly divided into two groups. 37 cases in the treatment group received the treatment of antihyperlipidemic decoction, and 40 cases in the control group received western medicine, zhinbiticose. The course of treatment for both groups was 8 weeks. RESULTS: The difference in total effective rate between the two groups was significant (P < 0.05). CONCLUSION: Antihyperlipidemic decoction has a better therapeutic effect for hyperlipemia, with a lower recurrence rate and less side effect.