摘要:
A method comprises determining a poly-gate temperature for a given device and determining channel temperatures of monitor devices. The method further includes extrapolating channel temperatures of the monitor devices to obtain a channel temperature for the given device. The difference in temperature (ΔT value) is determined for the given device based on the poly-gate temperature and the channel temperature. A device comprises a heating device having a poly gate with at least one contact at each end thereof and a plurality of monitor device spaced at known distances from the heating device
摘要:
A method comprises determining a poly-gate temperature for a given device and determining channel temperatures of monitor devices. The method further includes extrapolating channel temperatures of the monitor devices to obtain a channel temperature for the given device. The difference in temperature (ΔT value) is determined for the given device based on the poly-gate temperature and the channel temperature. A device comprises a heating device having a poly gate with at least one contact at each end thereof and a plurality of monitor device spaced at known distances from the heating device
摘要:
A method and apparatus for dynamic characterization of reliability wearout mechanisms is disclosed. The system comprises an integrated circuit incorporating a device under test to be measured, structure for inputting a waveform to the device under test for a first predetermined time interval, structure for disabling the inputting of the waveform to the device under test, structure for measuring one or more fundamental parameters of the device under test after a second predetermined time interval, and structure for calculating an aging estimate of the device under test without the influence of recovery effect based on the one or more measured fundamental parameters. The time between stressing and measurement is precisely controlled, providing for repeatable experiments, and serves to minimize measurement error caused by recovery effects.
摘要:
A structure is provided which includes at least one semiconductor device and a diffusion heater in a continuous active semiconductor area of a substrate. One or more semiconductor devices are provided in a first region of the active semiconductor area and a diffusion heater is disposed adjacent thereto which consists essentially of a semiconductor material included in the active semiconductor area. Conductive isolation between the first region and the diffusion heater is achieved through use of a separating gate. The separating gate overlies an intermediate region of the active semiconductor area between the first region and the diffusion heater and the separating gate is biasable to conductively isolate the first region from the diffusion heater.
摘要:
A method and apparatus for dynamic characterization of reliability wearout mechanisms is disclosed. The system comprises an integrated circuit incorporating a device under test to be measured, structure for inputting a waveform to the device under test for a first predetermined time interval, structure for disabling the inputting of the waveform to the device under test, structure for measuring one or more fundamental parameters of the device under test after a second predetermined time interval, and structure for calculating an aging estimate of the device under test without the influence of recovery effect based on the one or more measured fundamental parameters. The time between stressing and measurement is precisely controlled, providing for repeatable experiments, and serves to minimize measurement error caused by recovery effects.
摘要:
A structure is provided which includes at least one semiconductor device and a diffusion heater in a continuous active semiconductor area of a substrate. One or more semiconductor devices are provided in a first region of the active semiconductor area and a diffusion heater is disposed adjacent thereto which consists essentially of a semiconductor material included in the active semiconductor area. Conductive isolation between the first region and the diffusion heater is achieved through use of a separating gate. The separating gate overlies an intermediate region of the active semiconductor area between the first region and the diffusion heater and the separating gate is biasable to conductively isolate the first region from the diffusion heater.
摘要:
A recovery circuit and a method for employing the same are provided. The recovery circuit has a current driver and, preferably two pass-gates, a first pass-gate connected in series to the current driver and a second pass-gate connected to a ground. The recovery circuit also has a recovery assembly or element and one or more contacts operatively connecting the recovery circuit to a wearout sensitive circuit or circuit element.
摘要:
A semiconductor device and method of manufacturing thereof are provided. A trench is formed in a semiconductor substrate. A thin oxide liner is preferably formed on surfaces of the trench. A nitride liner is formed in the trench. Charge is trapped in the nitride liner. In a preferred embodiment, the trench is filled with an oxide by an HDP process to increase the amount of charge trapped in the nitride liner. Preferably, the oxide fill is formed directly on the nitride liner.
摘要:
A process for in-line testing of a metal-oxide-semiconductor field effect transistor (MOSFET) device for negative bias thermal instability (NBTI), which degrades the gate oxide of the MOSFET device. The process generally comprises four steps. First, a hole injection method is selected that produces approximately the same gate oxide degradation as the NBTI under test. Second, a correlation is established between the NBTI degradation and device shifts due to the selected hole injection degradation method. Third, an in-line procedure is developed based on the hole injection method, using the second step to relate the measured shift to NBTI. Finally, a NBTI specification is defined based on the hole injection method using the second step. The MOSFET device is preferably a p-type MOSFET device and the hole injection method is preferably a channel hot-carrier stress method.
摘要:
A versatile structure is formed, based on a deep trench, vertical transistor DRAM cell, that forms a conductive extension of the trench electrode in an elongated trench that contacts the lower electrode of the vertical transistor. The structure can be used as a capacitor, as a discrete transistor as a single-transistor amplifier or as a building block for more complex circuits.