摘要:
A photo detector device comprising a first layer comprising a first material, and a second layer arranged adjacent to the first layer, the second layer comprising strained silicon, wherein the second layer further comprises a light absorption region located substantially within the strained silicon, wherein the first or the second layer is arranged on a substrate.
摘要:
A photodiode device including a photosensitive diffusion junction within a single layer. The photodiode device further includes a resonant grating located within the single layer. The photosensitive diffusion junction is located within the resonant grating.
摘要:
A method and apparatus for designing a device to operate in a coupling mode, a detection mode, or a reflection mode for incident light. The incident light has a wavelength λ and is incident upon a semiconductor structure of the device at an angle of incidence (θi). A voltage (V) is applied to the device. Each mode may be designed for an ON state and/or OFF state. For the coupling mode and detection mode, the ON state and OFF state is characterized by high and low absorption of the incident light, respectively, by the semiconductor structure in conjunction with the applied voltage V and angle of incidence θi. For the reflection mode, the OFF state and ON states is characterized by a shift in the optical path length of λ/2 and about zero, respectively, in conjunction with the applied voltage V and angle of incidences θi.
摘要:
A photo detector device comprising a first layer comprising a first material, and a second layer arranged adjacent to the first layer, the second layer comprising strained silicon, wherein the second layer further comprises a light absorption region located substantially within the strained silicon, wherein the first or the second layer is arranged on a substrate.
摘要:
A program product, a translation lookaside buffer and a related method for operating the TLB is provided. The method comprises the steps of: a) when adding an entry for a virtual address to said TLB testing whether the attribute data of said virtual address is already stored in said CAM and if the attribute data is not stored already in said CAM, generating tag data for said virtual address such that said tag data is different from the tag data generated for the other virtual addresses currently stored in said RAM and associated to the new entry in said CAM for the attribute data, adding the generated tag data to said RAM and to the associated entry in said CAM, and setting a validity flag in said CAM for said associated entry; else if the attribute data is stored already in said CAM, adding the stored attribute data to the entry in said RAM for said virtual address; and when performing a TLB lookup operation: reading the validity flag and the tag data from the entry in said CAM, which is associated to the entry in said RAM for said virtual address, and simultaneously reading the absolute address and the tag data from the entry in said RAM for said virtual address, and generating a TLB hit only if the tag data read from said CAM is valid and matches the tag data read from said RAM.
摘要:
A method and apparatus for designing a device to operate in a coupling mode, a detection mode, or a reflection mode for incident light. The incident light has a wavelength λ and is incident upon a semiconductor structure of the device at an angle of incidence (θi). A voltage (V) is applied to the device. Each mode may be designed for an ON state and/or OFF state. For the coupling mode and detection mode, the ON state and OFF state is characterized by high and low absorption of the incident light, respectively, by the semiconductor structure in conjunction with the applied voltage V and angle of incidence θi. For the reflection mode, the OFF state and ON states is characterized by a shift in the optical path length of λ/2 and about zero, respectively, in conjunction with the applied voltage V and angle of incidence θi.
摘要:
A multi-junction opto-electronic device including a stack of wavelength selective absorption layers is proposed. The absorption layers include each a first layer with a grating of a specific pitch defining the wavelength of the incident light to be absorbed within a subjacent second electrically active layer itself on a third electrically inactive layer. The second electrically active layer within the different absorption layers is in electrical connection with lateral contacts to extract the electrical charge carriers generated by the absorbed incident light within the active layer. The grating within the first layer of the absorption layers is defined by periodic stripes of specific width depending on the wavelength to be absorbed by the respective absorption layers. The period of the stripes alignment is defined by the pitch of the grating. Advantageously, ordinary silicon technology can be used.
摘要:
A method and apparatus for designing a device to operate in a coupling mode, a detection mode, or a reflection mode for incident light. The incident light has a wavelength λ and is incident upon a semiconductor structure of the device at an angle of incidence (θi). A voltage (V) is applied to the device. Each mode may be designed for an ON state and/or OFF state. For the coupling mode and detection mode, the ON state and OFF state is characterized by high and low absorption of the incident light, respectively, by the semiconductor structure in conjunction with the applied voltage V and angle of incidence θi. For the reflection mode, the OFF state and ON states is characterized by a shift in the optical path length of λ/2 and about zero, respectively, in conjunction with the applied voltage V and angle of incidence θi.
摘要:
A program product, a translation lookaside buffer and a related method for operating the TLB is provided. The method comprises the steps of: a) when adding an entry for a virtual address to said TLB testing whether the attribute data of said virtual address is already stored in said CAM and if the attribute data is not stored already in said CAM, generating tag data for said virtual address such that said tag data is different from the tag data generated for the other virtual addresses currently stored in said RAM and associated to the new entry in said CAM for the attribute data, adding the generated tag data to said RAM and to the associated entry in said CAM, and setting a validity flag in said CAM for said associated entry; else if the attribute data is stored already in said CAM, adding the stored attribute data to the entry in said RAM for said virtual address; and when performing a TLB lookup operation: reading the validity flag and the tag data from the entry in said CAM, which is associated to the entry in said RAM for said virtual address, and simultaneously reading the absolute address and the tag data from the entry in said RAM for said virtual address, and generating a TLB hit only if the tag data read from said CAM is valid and matches the tag data read from said RAM.
摘要:
A system and associated method for distributing signals with efficiency over a microprocessor. A performance monitoring unit (PMU) sends configuration signals to a unit to monitor an event occurring on the unit. The unit is attached to a configuration bus and an event bus that are daisy-chained from PMU to other units in the microprocessor. The configuration bus transmits configuration signals from the PMU to the unit to set the unit to report the event. The unit sends event signals to the PMU through the event bus. The unit is configured upon receiving configuration signals comprising a base address of a bus ramp of the unit. A number of units and a number of events for monitoring is flexibly selected by adjusting a length of bit fields within configuration signals.