采用CoolCube工艺的3DVLSI:缩放的另一种途径

P. Batude, C. Fenouillet-Béranger, L. Pasini, V. Lu, F. Deprat, L. Brunet, B. Sklénard, F. Piegas-Luce, M. Cassé, B. Mathieu, O. Billoint, G. Cibrario, O. Turkyilmaz, H. Sarhan, S. Thuries, L. Hutin, S. Sollier, J. Widiez, L. Hortemel, C. Tabone, M.-P. Samson, B. Previtali, N. Rambal, F. Ponthenier, J. Mazurier, R. Beneyton, M. Bidaud, E. Josse, E. Petitprez, O. Rozeau, M. Rivoire, C. Euvard-Colnat, A. Seignard, F. Fournel, L. Benaissa, P. Coudrain, P. Leduc, J. Hartmann, P. Besson, S. Kerdilès, C. Bout, F. Nemouchi, A. Royer, C. Agraffeil, Gérard Ghibaudo, T. Signamarcheix, Michel Haond, F. Clermidy, O. Faynot, M. Vinet
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引用次数: 107

摘要

集成CoolCube™的3D VLSI可以垂直堆叠多层器件,其独特的连接孔密度超过100万/mm2。这导致密度增加,而没有与晶体管缩放相关的额外成本,同时由于线长减少而受益于功率和性能的提高。CoolCube™技术带来了高性能的顶部晶体管,其热预算(TB)与底部MOSFET完整性兼容。关键的促成因素是通过固相外延(SPE)或纳秒激光退火激活掺杂剂、低温外延、低k间隔层和直接键合。关于最大TB底部MOSFET可以承受(高温但持续时间短)的新数据为顶部MOSFET工艺优化提供了新的机会。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
3DVLSI with CoolCube process: An alternative path to scaling
3D VLSI with a CoolCube™ integration allows vertically stacking several layers of devices with a unique connecting via density above a million/mm2. This results in increased density with no extra cost associated to transistor scaling, while benefiting from gains in power and performance thanks to wire-length reduction. CoolCube™ technology leads to high performance top transistors with Thermal Budgets (TB) compatible with bottom MOSFET integrity. Key enablers are the dopant activation by Solid Phase Epitaxy (SPE) or nanosecond laser anneal, low temperature epitaxy, low k spacers and direct bonding. New data on the maximal TB bottom MOSFET can withstand (with high temperatures but short durations) offer new opportunities for top MOSFET process optimization.
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