Abstract: Integration schemes are presented which provide for decoupling the placement of deep source/drain (S/D) implants with respect to a selective epitaxial growth (SEG) raised S/D region, as well as decoupling silicide placement relative to a raised S/D feature. These integration schemes may be combined in multiple ways to permit independent control of the placement of these features for optimizing device performance. The methodology utilizes multiple spacers to decrease current crowding effects in devices due to proximity effects between LDD and deep S/D regions in reduced architecture devices.

Abstract: An integrated circuit with a semiconductor substrate is provided. A gate dielectric is on the semiconductor substrate, and a gate is on the gate dielectric. A suicide layer is on the semiconductor substrate adjacent the gate and the gate dielectric. The silicide layer incorporates a substantially uniformly distributed and concentrated dopant therein. A shallow source/drain junction is beneath the salicide layer. An interlayer dielectric is above the semiconductor substrate, and contacts are in the interlayer dielectric to the salicide layer.

Abstract: 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.