Crystal Growth by a Modified Liquid-Encapsulated Czochralski Process

9709944 Kou该项目通过对液体封装直拉技术的改进来解决电子和光子材料的体晶体生长问题，重点是减少掺杂剂的偏析。 该方法包括研究和引入一种技术，以实现区域整平，使轴向掺杂剂分布变平;其想法是将生长熔体保持在组合物C0/k，其中C0是所需的晶体组合物，k是偏析系数，并以与晶体生长相同的速率向熔体提供组合物C0的附加材料。 该项目涉及材料科学领域的基础研究问题，与电子和光子学具有高度的技术相关性。 该研究将在基础水平上为电子/光子器件和集成电路制造所需的大块晶体材料提供基础材料科学知识。 此外，从研究中获得的基本知识和理解有望通过提供更好的理解和生产改进材料和材料组合的基础，有助于提高先进器件和电路的性能。 该计划的一个重要特点是通过对电子/光子学领域必不可少的研究领域的学生进行培训，将研究和教育相结合。***

9709944 Kou This project addresses bulk crystal growth of electronic and photonic materials by modifications to the liquid-encapsulated Czochralski technique with emphasis on reducing dopant segregation. The approach includes the study and introduction of a technique to achieve zone leveling for flattening the axial dopant profile; the idea is to maintain the growth melt at composition C0/k where C0 is the desired crystal composition, k, the segregation coefficient, and to supply additional material of composition C0 to the melt at the same rate as the crystal grows. %%% The project addresses basic research issues in a topical area of materials science having high technological relevance to electronics and photonics. The research will contribute basic materials science knowledge at a fundamental level to bulk crystalline materials required for fabrication of electronic/photonic devices and integrated circuitry. Additionally, the fundamental knowledge and understanding gained from the research is expected to contribute to improving the performance of advanced devices and circuits by providing a better understanding and a basis for producing improved materials, and materials combinations. An important feature of the program is the integration of research and education through the training of students in a research area essential to the field of electronics/photonics. ***