Abstract:
PROBLEM TO BE SOLVED: To provide a novel structure in a semiconductor device to eliminate or reduce leakage current and junction capacitance. SOLUTION: A structure of a semiconductor device and method of fabricating the same is disclosed. The semiconductor structure includes first and second source/drain regions; a channel region disposed between the first and second source/drain regions; a buried well region in physical contact with the channel region; and buried barrier regions disposed between the buried well region and the first source/drain region and disposed between the buried well region and the second source/drain region, wherein the buried barrier regions are adapted for preventing current leakage and dopant diffusion between the buried well region and the first source/drain region, and current leakage and dopant diffusion between the buried well region and the second source/drain region. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a drive strength tunable FinFET, and a method of drive strength tuning the FinFET. SOLUTION: The FinFET has either at least one perpendicular fin 125 and at least one angled fin 130 or has at least one double-gated fin and at least one split-gated fin. The drive strength of the FinFET is tuned by the total number of each type of the fin, and the angle of the angled fin 130 with the perpendicular fin 125. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To enable a noise-insulated buried resistor to meet the requirement of a low-noise analog design requiring a well controlled ohmic resistor. SOLUTION: In order to insulate a buried resistor from the noise of a substrate, an electric field shield composed of an N-well 14 is formed between the buried resistor and substrate. The buried resistor 11 is formed in a P-well 13 formed in the N-well 14. A shallow trench separating area 12 is extended over the wells 13 and 14 and has an opening forming to expose a prescribed surface area in the well 13, and the resistor area 11 is formed in the area of the well 13 demarcated by the opening.
Abstract:
PROBLEM TO BE SOLVED: To provide a radiation detector formed by using a silicon-on insulator technology. SOLUTION: The radiation detector comprises a silicon layer formed on an insulating substrate and having a PNPN structure, and a gate layer formed on the PNPN structure and having a PN gate. Latch-up occurs only in response to incident radiation in the radiation detector. In a second mode, the radiation detector has a silicon-on insulator PNPN diode structure and latch-up occurs only in response to incident radiation in the radiation detector. In a third mode, a silicon-on insulator radiation detector has a silicon layer formed on the insulating substrate, the silicon layer has the PNPN structure and a gate layer formed thereon, the gate layer has a PN gate, and latch-up occurs only in response to incident radiation in the radiation detector. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a system for generating a set of FinFET shapes. SOLUTION: The position of a gate in an FET layout is detected and a set of FinFET shapes matching the gate is generated. More specifically, the method for generating a set of FinFET shapes comprises a step for detecting the position of a gate in an FET layout, a step for finding the axis of the gate, a step for generating a set of FinFET shapes matching the gate, and a step for elongating the set of FinFET shapes perpendicularly to the gate axis. Furthermore, an FinFET layout can be created by correcting the FET layout to include a set of FinFET shapes. More specifically, the system for generating a set of FinFET shapes comprises a subsystem for detecting the position of a gate in an FET layout, and a subsystem for generating a set of FinFET shapes matching the gate. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a noise separation burial resistor that satisfies the requirements of a low-noise analog design requiring a properly controlled ohm resistor. SOLUTION: An electric field shielding is provided between a buried resistor and a substrate to separate the buried resistor from the noise of a substrate by a standard buried resistor layout and a mask sequence with two exceptions. First, the buried resistor is not simply arranged at the region of a P well 13 but arranged at the region of an N well 4. Second, to electrically separate the buried resistor from the N well 14, a boron impregnant is added via the buried resistor mask and the P well 13 is formed inside the N well 14, thus electrically connecting the N well 14 to the noiseless ground. The P well 13 inside the N well 14 is left in floating state.
Abstract:
PROBLEM TO BE SOLVED: To provide a method to generate a FinFET with a back gate, which has dielectric layers whose thicknesses are different on its front gate side and back gate side. SOLUTION: Several steps are included to introduce impurities into at least one side of a fin of a FinFET to enable formation of dielectric layers with different thicknesses. Impurities that can be introduced through implantation may enhance or retard dielectric formation. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a high-performance CMOS SOI device on a hybrid crystal orientation substrate. SOLUTION: An integrated circuit structure provided with a substrate having at least two types of crystal orientation is disclosed. The first type of transistor is located on the first part of the substrate having an crystal orientation of the first type, and the second type of transistor is located on the second part of the substrate having an crystal orientation of the second type. There is a distortion generating layer on the transistors of the first and second types. Further, the distortion generating layer can distort on the first type of transistor, and get eased up on the second type of transistor. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an improved manufacturing method of an integrated circuit which is made by incorporating both a FinFET and a thick-body device into a single chip. SOLUTION: This manufacturing method of a microelectronic circuit which is made by incorporating both a fin-type field-effect transistor (FinFET) 1801 and a thick-body device 1802 into a single chip can attain an efficiency higher than that of the conventional methods by utilizing common masks and processes. Reduction in the numbers of masks and processes is achieved by utilizing common masks and processes together with several reduction strategies. For example, a structure which usually accompanies a FinFET is formed on a side surface of a thick silicon mesa. A bulk of the silicon mesa is doped to connect to a body contact formed on the opposite side surface of the mesa. This invention also includes the FinFET, thick-body device, and a chip manufactured by the methods associated with the invention. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a memory cell, and its fabricating method, in which cell density can be increased without increasing the fabrication cost or the complicacy excessively. SOLUTION: A fin arrangement forming a memory cell is provided. More concretely, an access transistor is provided by forming a finned field effect transistor (FET) and a storage capacitor is provided by forming a finned capacitor. When the memory cell is formed using a finned FET and a finned capacitor, memory cell density can be increased significantly as compared with the conventional planar capacitor arrangement. Furthermore, a memory cell can be fabricated with significantly lower process cost and complicacy than those of the conventional deep trench capacitor arrangement. COPYRIGHT: (C)2004,JPO