Abstract: An inspection device and method produces a deformation in a panel body and reveals a defect in the panel body. A base and a collar define a chamber. A vacuum device connects with the chamber for evacuating the chamber after the panel body is positioned adjacent to the collar and deflects the panel body into the chamber for propagating the defect in the panel body.

Abstract: A method is disclosed for testing for delamination of a first composite component from a second composite component a composite material. The method comprises coupling a broad-band actuator to the composite material and connecting sweeping frequencies to the broad-band actuator for vibrating the composite material. An acoustic sensor is coupled to the composite material for measuring a resonant frequency curve of the vibrating composite material. The measured resonant frequency curve of the vibrating composite material is compared with a reference resonant frequency curve. A delaminated composite material produces a change in the measured resonant frequency curve relative to the reference resonant frequency curve. The method is suitable for detecting delamination in fuel cells as well as ceramic body armor.

Abstract: An apparatus and a method are disclosed for testing the quality of a wafer. The apparatus and a method comprise coupling a broad-band actuator to the wafer. Sweeping frequencies are connected to the broad-band actuator for vibrating the wafer. An acoustic sensor is coupled to the wafer for measuring a resonant frequency of the vibrating wafer. The measured resonant frequency of the vibrating wafer is compared with a reference resonant frequency to deterring the quality of the wafer.

Abstract: A method is disclosed for testing for delamination of a first composite component from a second composite component a composite material. The method comprises coupling a broad-band actuator to the composite material and connecting sweeping frequencies to the broad-band actuator for vibrating the composite material. An acoustic sensor is coupled to the composite material for measuring a resonant frequency curve of the vibrating composite material. The measured resonant frequency curve of the vibrating composite material is compared with a reference resonant frequency curve. A delaminated composite material produces a change in the measured resonant frequency curve relative to the reference resonant frequency curve. The method is suitable for detecting delamination in fuel cells as well as ceramic body armor.

Abstract: A method and apparatus for in-line mechanical quality control of wafers, the method allows for fast detection of cracks including the determination of their size and position on a wafer. The method comprises steps of coupling the wafer and an actuator and exciting a superposition of ultrasonic vibrations in the wafer by sweeping the frequency of the actuator simultaneously around at least two predetermined resonance peaks, recording the resonance frequency, amplitude and bandwidth of resonant frequency curves and comparing that with the resonance frequency, amplitude and bandwidth of reference frequency curves recorded for a mechanically sound crack-free standard wafer. Based on the comparison a reject-accept command is generated using a statistical rejection algorithm.

Abstract: Luminescent semiconductor quantum dots (QDs) conjugated with biomolecules to serve as sensitive probes for early detection of the cancer cells, specifically for ovarian cancer and lung cancer, which represents the most lethal malignancies. The luminescence characterization of the bin-conjugated QDs with cancer specific antigens using linkage molecules. Photo-enhancement is measured at various laser density power, temperatures and laser wavelengths.

Abstract: Luminescent semiconductor quantum dots (QDs) conjugated with biomolecules to serve as sensitive probes for early detection of the cancer cells, specifically for ovarian cancer and lung cancer, which represents the most lethal malignancies. The luminescence characterization of the bin-conjugated QDs with cancer specific antigens using linkage molecules. Photo-enhancement is measured at various laser density power, temperatures and laser wavelengths.

Abstract: A method of detecting and monitoring elastic strains in a semiconductor wafer (12) comprising the steps of coupling the wafer (12) to a transducer (10) having a periphery (11). This is followed by operating the transducer (10) to produce ultrasonic vibrations at a predetermined wavelength &lgr; and propagating a standing wave through the wafer (12) in response to the ultrasonic vibrations. The method is characterized by extending the wafer (12) in a cantilevered section L from the periphery (11) of the transducer (10) to a distal end (13), and measuring the amplitude of the standing wave &lgr; in the cantilevered section L. For maximum efficiency, the cantilevered section L is substantially one quarter of the predetermined wavelength (&lgr;/4).

Abstract: A method of detecting and monitoring elastic strains in a semiconductor wafer (12) comprising the steps of coupling the wafer (12) to a transducer (10) having a periphery (11). This is followed by operating the transducer (10) to produce ultrasonic vibrations at a predetermined wavelength &lgr; and propagating a standing wave through the wafer (12) in response to the ultrasonic vibrations. The method is characterized by extending the wafer (12) in a cantilevered section L from the periphery (11) of the transducer (10) to a distal end (13), and measuring the amplitude of the standing wave &lgr; in the cantilevered section L. For maximum efficiency, the cantilevered section L is substantially one quarter of the predetermined wavelength (&lgr;/4).