摘要:
An alpha particle blocking structure and method of making the structure. The structure includes: a semiconductor substrate; a set of interlevel dielectric layers stacked from a lowermost interlevel dielectric layer closest to the substrate to a uppermost interlevel dielectric layer furthest from the substrate, each interlevel dielectric layer of the set of interlevel dielectric layers including electrically conductive wires, top surfaces of the wires substantially coplanar with top surfaces of corresponding interlevel dielectric layers; an electrically conductive terminal pad contacting a wire pad of the uppermost interlevel dielectric layer; an electrically conductive plating base layer contacting a top surface of the terminal pad; and a copper block on the plating base layer.
摘要:
A method for fabricating a CMOS gate electrode by using Re, Rh, Pt, Ir or Ru metal and a CMOS structure that contains such gate electrodes are described. The work functions of these metals make them compatible with current pFET requirements. For instance, the metal can withstand the high hydrogen pressures necessary to produce properly passivated interfaces without undergoing chemical changes. The thermal stability of the metal on dielectric layers such as SiO2, Al2O3 and other suitable dielectric materials makes it compatible with post-processing temperatures up to 1000° C. A low temperature/low pressure CVD technique with Re2(CO)10 as the source material is used when Re is to be deposited.
摘要翻译:描述了通过使用Re,Rh,Pt,Ir或Ru金属制造CMOS栅电极的方法和包含这种栅电极的CMOS结构。 这些金属的工作功能使其与当前的pFET要求兼容。 例如,金属可以承受生产适当钝化界面而不经历化学变化所需的高氢气压力。 金属在介电层上的热稳定性如SiO 2,Al 2 O 3和其它合适的介电材料使其与后处理温度高达1000℃相兼容。具有Re2(CO)10作为源的低温/低压CVD技术 当Re沉积时使用材料。
摘要:
A structure for reduction of soft error rates in integrated circuits. The structure including: a semiconductor substrate; and a stack of one or more wiring levels stacked from a lowermost wiring level to an uppermost wiring level, the lowermost wiring level nearer the semiconductor substrate than the uppermost wiring level; and an alpha particle blocking layer on a top surface of the uppermost wiring level of the one or more wiring levels, the blocking layer comprising metal wires and a dielectric material, the blocking layer having a combination of a thickness of the blocking layer and a volume percent of metal wires in the blocking layer sufficient to stop a predetermined percentage of alpha particles of a selected energy or less striking the blocking layer from penetrating into the stack of one or more wiring levels or the substrate.
摘要:
Personal radiation detection devices, methods of obtaining radiation exposure data, and networks of personal radiation devices. The detection devices may include passive devices and active devices. The passive detection devices may have the same form factor as credit cards or be included in common types of credit card form factor sized cards. The active devices may be incorporated into common and widely distributed host devices.
摘要:
A memory cell comprises a wordline, a first digital inverter with a first input and a first output, and a second digital inverter with a second input and a second output. Moreover, the memory cell further comprises a first feedback connection connecting the first output to the second input, and a second feedback connection connecting the second output to the first input. The first feedback connection comprises a first resistive element and the second feedback connection comprises a second resistive element. What is more, each digital inverter has an associated capacitance. The memory cell is configured such that reading the memory cell includes applying a read voltage pulse to the wordline. In addition, the first and second resistive elements are configured such that the first and second feedback connections have resistance-capacitance induced delays longer than the applied read voltage pulse.
摘要:
Issues that are addressed in accordance with at least one presently preferred embodiment of the present invention, are: improvements upon the time it takes to physically swap degraders (done previously by hand); the safety involved in doing so, since the degraders become highly radioactive; possible improved energy resolution and beam stability if the accelerator can be left running continuously; and in-situ monitoring of beam current, beam position and stability. Particularly contemplated are methods and arrangements for changing degraders automatically, not manually, and in a safe manner.
摘要:
A method and system for mitigating the impact of radiation induced in a data processor incorporating integrated circuits. The method comprises the steps of determining the location of the data processor, determining a set of radiation sources and intensities at that location, and estimating the soft error rate of the data processor as a function of the determined radiation intensities and geometric characteristics of said integrated circuits to provide an estimate value. The data processor is modified (either hardware or software) in response to the estimate value at times the estimate value exceeds a predetermined value.
摘要:
A process is described for the fabrication of submicron interconnect structures for integrated circuit chips. Void-free and seamless conductors are obtained by electroplating Cu from baths that contain additives and are conventionally used to deposit level, bright, ductile, and low-stress Cu metal. The capability of this method to superfill features without leaving voids or seams is unique and superior to that of other deposition approaches. The electromigration resistance of structures making use of CU electroplated in this manner is superior to the electromigration resistance of AlCu structures or structures fabricated using Cu deposited by methods other than electroplating.
摘要:
An apparatus and method for mapping film thickness of one or more textured polycrystalline thin films. Multiple sample films of known thickness are provided. Each sample film is irradiated by x-ray at a measurement point to generate a diffraction image that captures a plurality of diffraction arcs. Texture information (i.e., pole densities) of the sample film, is calculated based on incomplete pole figures collected on the diffraction image and used to correct the x-ray diffraction intensities from such sample. The corrected diffraction intensities are integrated for each sample film, and then used for constructing a calibration curve that correlates diffraction intensities with respective known film thickness of the sample films. The film thickness of a textured polycrystalline thin film of unknown thickness can therefore be mapped on such calibration curve, using a corrected and integrated diffraction intensity obtained for such thin film of unknown thickness.
摘要:
A test system having an improved physical layout and electrical design allows the 1/f noise of metal interconnects to be measured at levels close to that of Johnson or thermal noise. A detailed description of examples of operation of the test system provides evidence of the effectiveness of the test system in minimizing system noise to a level significantly lower than Johnson noise. This permits quantitative measurment of the noise contribution attributable to variations in cross-sectional area of connections for various applications and for qualitative prediction of electromigration lifetimes of metal films, particularly aluminum, having different microstructures. The test system includes an enclosure which includes several nested groups of housings including a sample oven within a device under test box which is, in turn, contained within the system enclosure. Wire wound resistors powered by a DC power supply are used to provide heating without interfering with measurement of 1/f noise of a device under test (D.U.T.). A biasing circuit and a bank of batteries are also provided with separate enclosures within the system enclosure.