公开(公告)号：US20030035636A1

公开(公告)日：2003-02-20

申请号：US09930145

申请日：2001-08-16

Applicant: MOTOROLA, INC.

Inventor： Kenneth A. Hansen ,  Kevin B. Traylor

IPC: G02B006/44

CPC classification number: H01L27/0605 ,  H01L21/02381 ,  H01L21/02488 ,  H01L21/02505 ,  H01L21/02513 ,  H01L21/02521 ,  H01L21/8258

Abstract: High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. In addition, formation of a compliant substrate may include utilizing surfactant enhanced epitaxy, epitaxial growth of single crystal silicon onto single crystal oxide, and epitaxial growth of Zint1 phase materials. The resulting circuit may combine metal-oxide-semiconductor silicon transistors and compound semiconductors on a single substrate. These materials and fabrication techniques can be advantageously used to form mixed technology logic gates that feature cost-effective speedy operation.

Abstract translation: 通过形成用于生长单晶层的柔性衬底，可以将单晶材料的高质量外延层生长在覆盖单晶衬底（例如大硅晶片）上。 容纳缓冲层包括通过硅氧化物的非晶界面层与硅晶片间隔开的单晶氧化物层。 非晶界面层消耗应变并允许高质量单晶氧化物容纳缓冲层的生长。 容纳缓冲层与下面的硅晶片和上覆的单晶材料层晶格匹配。 通过非晶界面层处理容纳缓冲层和底层硅衬底之间的任何晶格失配。 此外，顺应性衬底的形成可以包括利用表面活性剂增强的外延，将单晶硅外延生长到单晶氧化物上，以及Zint1相材料的外延生长。 所得到的电路可以在单个衬底上组合金属氧化物半导体硅晶体管和化合物半导体。 这些材料和制造技术可以有利地用于形成具有成本效益的快速操作的混合技术逻辑门。