摘要:
An apparatus for changing an aggregate intensity of a light within an illumination field of a photolithography system having a blade structure and a first actuator. The blade structure is configured to be positioned along an optical path of the photolithography system between an illumination system and a reticle stage so that, when the illumination system provides the light having the illumination field, the blade structure is substantially at a center of the illumination field and a first portion of the light within the illumination field impinges upon the blade structure. The first actuator is coupled between a first portion of the blade structure and a frame of the photolithography system and is configured to move at least the first portion of the blade structure in a first direction so that a second portion of the light within the illumination field impinges upon the blade structure.
摘要:
An apparatus for changing an intensity distribution of a light within an illumination field includes a structure configured to be positioned within the illumination field so that a first portion of the light within the illumination field impinges upon the structure, where the structure is translucent or opaque to a wavelength of the light. The apparatus also includes an actuator configured to cause a movement of a first portion of the structure so that a second portion of the light within the illumination field impinges upon the structure. The light within the illumination field is produced by a source configured so that a pupil fill of a beam of the light is uncontrolled, but the beam of the light downstream of the structure is substantially telecentric before and after the movement of the first portion of the structure. Related methods are also presented.
摘要:
A lithographic apparatus, a device manufacturing method, and a projection element for use in a lithographic apparatus are disclosed. The lithographic apparatus has a radiation system for providing a pulsed beam of radiation, a patterning device for imparting the beam with a pattern to form a patterned radiation beam, and a projection system having a projection element for projecting the patterned beam onto a target portion of a substrate. The apparatus further comprises an actuator for moving the projection element for shifting the patterned beam that is projected onto the substrate during at least one pulse of the radiation system. This can be done to compensate for a positional error between a substrate table holding the substrate and an aerial image of the projection system. The positional error could occur due to mechanical vibrations in the frame system of the lithographic apparatus.
摘要:
Embodiments of the invention relate to a message based scheduling tool employed to function with an electronic calendar. As messages are transmitting between clients, a tool is employed to parse the messages to search for one or more string(s) of characters characteristic of a meeting. Based upon these characteristics and the parsing, the electronic calendars are searched to find an available time slot on both calendars in which a meeting can take place, and, if an available time is found, the meeting is scheduled and the clients are sent notification of the scheduling.
摘要:
A focus system that includes a calibration subsystem and a control subsystem. The control subsystem, which includes a control sensor, is in close proximity to the exposing of an image. The calibration subsystem, which includes a calibration sensor and a control sensor, is located remotely from, or off-axis with respect to, the exposing of an image. By separating calibration and control functions, the functional requirements can be separated into two (or more) types of sensors.
摘要:
The present invention provides a grating-grating interferometric wafer alignment system, sensor and method for microlithography. It includes: (1) an electromagnetic radiation source with collimating optics delivering a collimated beam of a coherent single or multiple discrete wavelengths or in some cases broadband electromagnetic radiation; (2) a detector of the intensity of the collimated return electromagnetic radiation; (3) x- and y-oriented independent linear gratings for the mask-mark; (3) a "checkerboard pattern" grating for the wafer-mark; and (4) software including an algorithm for determining alignment from the return electromagnetic radiation intensity measured as a function of the relative position of the wafer and mask grating, and a means such as a Fourier transform determining phase and amplitude of a known frequency component of the intensity. In one embodiment a laser diode is used and the backscatter from the mask and wafer gratings is returned to the laser diode creating a beat signal used to determine alignment of the mask and wafer. Alignment accuracy is increased and made more tolerant of processing variables such as wafer topography and coatings.
摘要:
Techniques for implementing software licensing in a massive parallel processing environment on the basis of the actual use of licensed software instances are disclosed. In one embodiment, rather than using a license server or a node-locked license strategy, each use of a licensed software instance is monitored and correlated with a token. A store of tokens is maintained within the licensing system and a token is consumed after each instance successfully executes. Further, a disclosed embodiment also allows jobs that execute multiple software instances to complete execution, even if an adequate number of tokens does not exist for each remaining software instance. Once the license tokens are repurchased and replenished, any overage consumed from previous job executions may be reconciled. In this way, token-based licensing can be adapted to large scale computing environments that execute jobs of large and unpredictable sizes, while the cancellation of executing jobs may be avoided.
摘要:
Responsive to a request to invoke a given virtual machine (VM) instance, a base VM instance corresponding to a number of VM instances, including the given VM instance, is retrieved. A VM change file particular to just the given VM instance is also retrieved. The VM change file indicates how the given VM instance varies from the base VM instance. The VM change file is applied to the base VM instance to dynamically generate the given VM instance, and the given VM instance is then invoked. Responsive to a request to subsequently shutdown the given VM instance, the VM change file is updated to reflect how the given VM instance varies from the base VM instance. The given VM instance is then shutdown and deleted.
摘要:
Techniques for implementing software licensing in a massive parallel processing environment on the basis of the actual use of licensed software instances are disclosed. In one embodiment, rather than using a license server or a node-locked license strategy, each use of a licensed software instance is monitored and correlated with a token. A store of tokens is maintained within the licensing system and a token is consumed after each instance successfully executes. Further, a disclosed embodiment also allows jobs that execute multiple software instances to complete execution, even if an adequate number of tokens does not exist for each remaining software instance. Once the license tokens are repurchased and replenished, any overage consumed from previous job executions may be reconciled. In this way, token-based licensing can be adapted to large scale computing environments that execute jobs of large and unpredictable sizes, while the cancellation of executing jobs may be avoided.
摘要:
A reflective reticle substantially reduces or eliminates pattern distortion that results from the absorption of EUV radiation while maintaining a reticle thickness consistent with industry standards. The reflective reticle includes a layer of ultra-low expansion (ULE) glass and a substrate of Cordierite having a thermal conductivity substantially larger than that of ULE glass. An aluminum layer is disposed onto a first surface of the ULE glass and a second surface of the ULE glass is polished to be substantially flat and defect-free. The Cordierite substrate can be directly bonded to the aluminum layer using anodic bonding to form the reflective reticle. Alternatively, a first surface of an intermediate Zerodur layer can be bonded to the aluminum layer, and a second aluminum layer can be used to anodically bond the Cordierite substrate to a second surface of the Zerodur layer, thereby forming the reflective reticle.