Abstract:
A method is provided for fabricating a 3D integrated circuit structure. According to the method, a first active circuitry layer wafer is provided. The first active circuitry layer wafer comprises a P+ portion covered by a P− layer, and the P− layer includes active circuitry. The first active circuitry layer wafer is bonded face down to an interface wafer that includes a first wiring layer, and then the P+ portion of the first active circuitry layer wafer is selectively removed with respect to the P− layer of the first active circuitry layer wafer. Next, a wiring layer is fabricated on the backside of the P− layer. Also provided are a tangible computer readable medium encoded with a program for fabricating a 3D integrated circuit structure, and a 3D integrated circuit structure.
Abstract:
PROBLEM TO BE SOLVED: To provide a high-mobility semiconductor layer and a structure of a MODFET (modulation-doped field-effect transistor) which include a high-mobility conduction channel and simultaneously maintain a counter dope to reduce a harmful short channel effect. SOLUTION: A high-performance n-MODFET transistor device is formed by providing an insulating gate dielectric on an Si cap layer, a gate electrode disposed on the insulating gate dielectric, and n-type source and drain contact areas which are disposed in contact with one side of the gate electrode and stretch from a surface of a multilayer structure into a p-type doped portion of a relaxed Si 1-X Ge X layer. This MODFET design includes the high-mobility conduction channel. This method forms a counter doped portion by using a standard technique such as ion implantation and bringing a high-mobility channel close to the counter doped portion without reducing a mobility. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation:要解决的问题:为了提供包括高迁移率传导通道的MODFET(调制掺杂场效应晶体管)的高迁移率半导体层和结构,并且同时保持反向掺杂以减少有害短路 渠道效应。 解决方案:通过在Si覆盖层上提供绝缘栅极电介质,设置在绝缘栅极电介质上的栅极电极和设置在绝缘栅极电介质上的n型源极和漏极接触区域来形成高性能n-MODFET晶体管器件 与栅电极的一侧接触并且从多层结构的表面拉伸成松弛的Si 1-X SB Ge x SB层的p型掺杂部分。 该MODFET设计包括高迁移率传导通道。 该方法通过使用诸如离子注入的标准技术形成反掺杂部分,并使高迁移率通道靠近反掺杂部分而不降低迁移率。 版权所有(C)2005,JPO&NCIPI
Abstract:
A semiconductor-containing heterostructure including, from bottom to top, a IH-V compound semiconductor buffer layer, a III-V compound semiconductor channel layer, a HI-V compound semiconductor barrier layer, and an optional, yet preferred, IH-V compound semiconductor cap layer is provided. The barrier layer may be doped, or preferably undoped. The HI-V compound semiconductor buffer layer and the HI-V compound semiconductor barrier layer are comprised of materials that have a wider band gap than that of the pi-V compound semiconductor channel layer. Since wide band gap materials are used for the buffer and barrier layer and a narrow band gap material is used for the channel layer, carriers are confined to the channel layer under certain gate bias range. The inventive heterostructure can be employed as a buried channel structure in a field effect transistor.
Abstract:
A semiconductor-containing heterostructure including, from bottom to top, a IH-V compound semiconductor buffer layer, a III-V compound semiconductor channel layer, a HI-V compound semiconductor barrier layer, and an optional, yet preferred, IH-V compound semiconductor cap layer is provided. The barrier layer may be doped, or preferably undoped. The HI-V compound semiconductor buffer layer and the HI-V compound semiconductor barrier layer are comprised of materials that have a wider band gap than that of the pi-V compound semiconductor channel layer. Since wide band gap materials are used for the buffer and barrier layer and a narrow band gap material is used for the channel layer, carriers are confined to the channel layer under certain gate bias range. The inventive heterostructure can be employed as a buried channel structure in a field effect transistor.
Abstract:
The invention addresses the problem of creating a high-speed, high-efficiency photodetector that is compatible with Si CMOS technology. The structure consists of a Ge absorbing layer on a thin SOI substrate, and utilizes isolation regions, alternating n-and p-type contacts, and low-resistance surface electrodes. The device achieves high bandwidth by utilizing a buried insulating layer to isolate carriers generated in the underlying substrate, high quantum efficiency over a broad spectrum by utilizing a Ge absorbing layer, low voltage operation by utilizing thin a absorbing layer and narrow electrode spacings, and compatibility with CMOS devices by virtue of its planar structure and use of a group IV absorbing material. The method for fabricating the photodetector uses direct growth of Ge on thin SOI or an epitaxial oxide, and subsequent thermal annealing to achieve a high-quality absorbing layer. This method limits the amount of Si available for interdiffusion, thereby allowing the Ge layer to be annealed without causing substantial dilution of the Ge layer by the underlying Si.
Abstract:
Eine Halbleiterstruktur umfasst Rückseitenpseudostecker, die in ein Substrat eingebettet sind. Die Rückseitenpseudostecker können eine leitfähige Struktur sein, welche die vertikale Wärmeleitfähigkeit der Halbleiterstruktur verbessert und eine elektrische Entkopplung der Signale in den Durchkontaktierungen durch das Substrat (TSVs) im Substrat bereitstellt. Der Rückseitenpseudostecker kann einen Hohlraum zum Ausgleichen von Volumenänderungen in anderen Komponenten in dem Substrat umfassen, wodurch mechanische Spannungen in dem Substrat während der Temperaturwechsel und während des Betriebs des Halbleiterchips verringert werden. Der Rückseitenpseudostecker, der den Hohlraum umfasst, kann aus einem isolierenden Material oder einem leitfähigen Material bestehen. Die erfinderischen Strukturen können dazu eingesetzt werden, dreidimensionale Strukturen auszubilden, die eine vertikale Chipintegration aufweisen, in welcher die Wärmeleitfähigkeit zwischen den Wafern verbessert wird, das Übersprechen zwischen den durch die TSVs übertragenen Signalen verringert wird und/oder die mechanischen Spannungen auf die TSVs vermindert werden.
Abstract:
The invention addresses the problem of creating a high-speed, high-efficiency photodetector that is compatible with Si CMOS technology. The structure consists of a Ge absorbing layer on a thin SOI substrate, and utilizes isolation regions, alternating n- and p-type contacts, and low-resistance surface electrodes. The device achieves high bandwidth by utilizing a buried insulating layer to isolate carriers generated in the underlying substrate, high quantum efficiency over a broad spectrum by utilizing a Ge absorbing layer, low voltage operation by utilizing thin a absorbing layer and narrow electrode spacings, and compatibility with CMOS devices by virtue of its planar structure and use of a group IV absorbing material. The method for fabricating the photodetector uses direct growth of Ge on thin SOI or an epitaxial oxide, and subsequent thermal annealing to achieve a high-quality absorbing layer. This method limits the amount of Si available for interdiffusion, thereby allowing the Ge layer to be annealed without causing substantial dilution of the Ge layer by the underlying Si.
Abstract:
The invention addresses the problem of creating a high-speed, high-efficiency photodetector that is compatible with Si CMOS technology. The structure consists of a Ge absorbing layer on a thin SOI substrate, and utilizes isolation regions, alternating n- and p-type contacts, and low-resistance surface electrodes. The device achieves high bandwidth by utilizing a buried insulating layer to isolate carriers generated in the underlying substrate, high quantum efficiency over a broad spectrum by utilizing a Ge absorbing layer, low voltage operation by utilizing thin a absorbing layer and narrow electrode spacings, and compatibility with CMOS devices by virtue of its planar structure and use of a group IV absorbing material. The method for fabricating the photodetector uses direct growth of Ge on thin SOI or an epitaxial oxide, and subsequent thermal annealing to achieve a high-quality absorbing layer. This method limits the amount of Si available for interdiffusion, thereby allowing the Ge layer to be annealed without causing substantial dilution of the Ge layer by the underlying Si.