摘要:
A method of forming substrates, e.g., silicon on insulator, silicon on silicon. The method includes providing a donor substrate, e.g., silicon wafer. The method also includes forming a cleave layer on the donor substrate that contains the cleave plane, the plane of eventual separation. In a specific embodiment, the cleave layer comprising silicon germanium. The method also includes forming a device layer (e.g., epitaxial silicon) on the cleave layer. The method also includes introducing particles into the cleave layer to add stress in the cleave layer. The particles within the cleave layer are then redistributed to form a high concentration region of the particles in the vicinity of the cleave plane, where the redistribution of the particles is carried out in a manner substantially free from microbubble or microcavity formation of the particles in the cleave plane. That is, the particles are generally at a low dose, which is defined herein as a lack of microbubble or microcavity formation in the cleave plane. The method also includes providing selected energy to the donor substrate to cleave the device layer from the cleave layer at the cleave plane, whereupon the selected energy is applied to create a controlled cleaving action to remove the device layer from a portion of the cleave layer in a controlled manner.
摘要:
A method of forming substrates, e.g., silicon on insulator, silicon on silicon. The method includes providing a donor substrate, e.g., silicon wafer. The method also includes forming a cleave layer on the donor substrate that contains the cleave plane, the plane of eventual separation. In a specific embodiment, the cleave layer comprising silicon germanium. The method also includes forming a device layer (e.g., epitaxial silicon) on the cleave layer. The method also includes introducing particles into the cleave layer to add stress in the cleave layer. The particles within the cleave layer are then redistributed to form a high concentration region of the particles in the vicinity of the cleave plane, where the redistribution of the particles is carried out in a manner substantially free from microbubble or microcavity formation of the particles in the cleave plane. That is, the particles are generally at a low dose, which is defined herein as a lack of microbubble or microcavity formation in the cleave plane. The method also includes providing selected energy to the donor substrate to cleave the device layer from the cleave layer at the cleave plane, whereupon the selected energy is applied to create a controlled cleaving action to remove the device layer from a portion of the cleave layer in a controlled manner.
摘要:
A method of forming substrates, e.g., silicon on insulator, silicon on silicon. The method includes providing a donor substrate, e.g., silicon wafer. The method also includes forming a cleave layer on the donor substrate that contains the cleave plane, the plane of eventual separation. In a specific embodiment, the cleave layer comprising silicon germanium. The method also includes forming a device layer (e.g., epitaxial silicon) on the cleave layer. The method also includes introducing particles into the cleave layer to add stress in the cleave layer. The particles within the cleave layer are then redistributed to form a high concentration region of the particles in the vicinity of the cleave plane, where the redistribution of the particles is carried out in a manner substantially free from microbubble or microcavity formation of the particles in the cleave plane. That is, the particles are generally at a low dose, which is defined herein as a lack of microbubble or microcavity formation in the cleave plane. The method also includes providing selected energy to the donor substrate to cleave the device layer from the cleave layer at the cleave plane, whereupon the selected energy is applied to create a controlled cleaving action to remove the device layer from a portion of the cleave layer in a controlled manner.
摘要:
An ion implantation apparatus and method. The apparatus has a vacuum chamber and an ion beam generator to generate an ion beam in the vacuum chamber. The apparatus also has an implant wheel (10), in the vacuum chamber, having a plurality of circumferentially distributed substrate holding positions. Each of the substrate holding positions comprises a substrate holder (17), which includes an elastomer overlying the substrate holder (17) and a thermal insulating material (71) (e.g., quartz, silicon, ceramics, and other substantially non-compliant materials) overlying the elastomer (72). The present thermal insulating material increases a temperature of a substrate as it is implanted.
摘要:
A method of forming substrates. The method includes providing a donor substrate; and forming a cleave layer comprising a cleave plane on the donor substrate. The cleave plane extends from a periphery of the donor substrate through a center region of the substrate. The method also includes forming a device layer on the cleave layer. The method also includes selectively introducing a plurality of particles along the periphery of the cleave plane to form a higher concentration region at the periphery and a lower concentration region in the center region. Selected energy is provided to the donor substrate to initiate a cleaving action at the higher concentration region at the periphery of the cleave plane to cleave the device layer at the cleave plane.
摘要:
A sidewall spacer structure is formed adjacent to a gate structure whereby a material forming an outer surface of the sidewall spacer structure contains nitrogen. Subsequent to its formation the sidewall spacer structure is annealed to harden the sidewall spacer structure from a subsequent cleaning process. An epitaxial layer is formed subsequent to the cleaning process.
摘要:
Methods and systems for permitting thickness control of the selective epitaxial growth (SEG) layer in a semiconductor manufacturing process, for example raised source/drain applications in CMOS technologies, are presented. These methods and systems provide the capability to measure the thickness of an SEG film in-situ utilizing optical ellipsometry equipment during or after SEG layer growth, prior to removing the wafer from the SEG growth tool. Optical ellipsometry equipment can be integrated into the SEG platform and control software, thus providing automated process control (APC) capability for SEG thickness. The integration of the ellipsometry equipment may be varied, dependent upon the needs of the fabrication facility, e.g., integration to provide ellipsometer monitoring of a single process tool, or multiple tool monitoring, among other configurations.
摘要:
A transistor device formed on a semiconductor-on-insulator (SOI) substrate with a buried oxide (BOX) layer disposed thereon and an active layer disposed on the BOX layer having active regions defined by isolation trenches. The device includes a gate defining a channel interposed between a source and a drain formed within the active region of the SOI substrate. Further, the device includes a plurality of thin silicide layers formed on the source and the drain. Additionally, at least an upper silicide layer of the plurality of thin silicide layers extends beyond a lower silicide layer. Further still, the device includes a plurality of spacers used in the formation of the device. The device further includes a second plurality of thin silicide layers formed on a polysilicon electrode of the gate.
摘要:
According to the invention, a method and circuit for measuring a transient of a MOFSET device under measurement of an SOI is provided. The device under measurement is connected from its drain to a measuring circuit having a trip point switching circuit. A supply voltage is applied to the drain through a capacitor connected to ground. When a high to low voltage pulse is applied to the source of the device, the threshold trip point can be determined whereby the dump charge through the transistor device can be determined.
摘要:
An arrangement is provided for collecting, measuring and analyzing at least two specific wavelengths of optical emissions produced while etching a semiconductor wafer in a plasma chamber to determine an optimal endpoint for the etching process. The arrangement includes a sensor for gathering optical emissions, an interface for converting the intensity of optical emissions into corresponding electrical signals, and a controller for determining an optimal endpoint based on the corresponding electrical signals for the two specific wavelengths and other predetermined threshold data.