Abstract:
A mobile device comprising: a data collection device; a trigger to activate the data collection device; a communication system for wireless communications; a display for displaying information; a processor for controlling software and firmware operation; a keypad for entering data for the processor; a power supply for providing power to the mobile device, the power supply comprising a fuel cell or an ultracapacitor; and a housing for supporting the data collection device, trigger, communication system, display, processor, keypad and power supply.
Abstract:
Disclosed is a semiconductor die having an upper layer and a lower layer. The die includes a lower test structure formed in the lower metal layer of the semiconductor die. The lower conductive test structure has a first end and a second end, wherein the first end is coupled to a predetermined voltage level. The die also has an insulating layer formed over the lower metal layer and an upper test structure formed in the upper metal layer of the semiconductor die. The upper conductive test structure is coupled with the second end of the lower conductive test structure, and the upper metal layer being formed over the insulating layer. The die further includes at least one probe pad coupled with the upper test structure. Preferably, the first end of the lower test structure is coupled to a nominal ground potential. In another implementation, the upper test structure is a voltage contrast element. In another embodiment, a semiconductor die having a scanning area is disclosed. The semiconductor die includes a first plurality of test structures wherein each of the test structures in the first plurality of test structures is located entirely within the scanning area. The die includes a second plurality of test structures wherein each of the test structures in the first plurality of test structures is located only partially within the scanning area. The first plurality of test structures or the second plurality of test structures has a probe pad coupled to at least one test structure.
Abstract:
Disclosed is a method of inspecting a sample. The sample is illuminated with an incident beam, thereby causing voltage contrast within structures present on the sample. Voltage contrast is detected within the structures. Information from the detected voltage contrast is stored, and position data concerning the location of features corresponding to at least a portion of the stored voltage contrast information is also stored. In a specific embodiment, the features represent electrical defects present on the sample. In another embodiment, the stored position data is in the form of a two dimensional map. In another aspect, the sample is re-inspected and the stored position data is used in analyzing data resulting from the re-inspection.
Abstract:
Apparatus is provided which includes a FIB column having a vacuum chamber for receiving an IC, means for applying a FIB to the IC, means for detecting secondary charged particles emitted as the FIB is applied to the IC, and means for electrically stimulating the IC as the FIB is applied to the IC. The apparatus may be used, for example, (1) to locate a conductor buried under dielectric material within the IC, (2) for determining milling end-point when using the FIB to expose a buried conductor of the IC, and (3) to verify the repair of an IC step-by-step as the repair is made.
Abstract:
A bar code reading terminal includes a cordless optical reader. The optical reader includes a microprocessor, a scan engine coupled to the microprocessor, a hand held housing supporting the scan engine, program memory coupled to the microprocessor, a decode processor circuit coupled to the microprocessor, and a short-cycle energy storage device coupled to the microprocessor. The energy storage device has high power density and low energy density. In one embodiment, the short-cycle energy storage device comprises a power density greater than 1 kW/kg. The bar code reading terminal further includes a base unit having a housing that includes a socket for receiving the hand held housing. The socket has a connector to facilitate transfer of bar code data messages from the hand held optical reader to the base unit. The connector also transfer powers from the base unit to the short-cycle energy storage device.
Abstract:
A system and method for monitoring and managing wellhead production and costs associated therewith. Electronic equipment is placed at the well head to monitor the volume of product lifted from at a wellhead. The equipment monitors both the volume and the percentage of products lifted and stored at the well head. The status of the separation and the volume can be monitored in real time or on a delayed time basis. The data is displayed on a map and used to identify efficient routes for gathering the lifted product at an appropriate time. The data may be displayed in a user interface which displays desired data in connection with each well head in a represented geographic region.
Abstract:
Systems and methods for determining one or more characteristics of a specimen using radiation in the terahertz range are provided. One system includes an illumination subsystem configured to illuminate the specimen with radiation. The system also includes a detection subsystem configured to detect radiation propagating from the specimen in response to illumination of the specimen and to generate output responsive to the detected radiation. The detected radiation includes radiation in the terahertz range. In addition, the system includes a processor configured to determine the one or more characteristics of the specimen using the output.
Abstract:
Disclosed is a semiconductor die having a scanning area. The semiconductor die includes a first plurality of test structures wherein each of the test structures in the first plurality of test structures is located entirely within the scanning area. The semiconductor die further includes a second plurality of test structures wherein each of the test structures in the first plurality of test structures is located only partially within the scanning area. The test structures are arranged so that a scan of the scanning area results in detection of defects outside of the scanning area.
Abstract:
A system and method for controlling electron exposure on image specimens by adjusting a raster scan area in-between scan frame cycles. A small, zoomed-in, scan area and the surrounding area are flooded with positive charge for a number of frame cycles between scan frames to reduce the voltage differential between the scan area and surrounding area, thereby reducing the positive charge buildup which tends to obscure small features in scanned images. The peak current into a pixel element on the specimen is reduced by scanning the beam with a line period that is very short compared to regular video. Frames of image data may further be acquired non-sequentially, in arbitrarily programmable patterns. Alternatively, an inert gas can be injected into the scanning electron microscope at the point where the electron beam impinges the specimen to neutralize a charge build-up on the specimen by the ionization of the inert gas by the electron beam.