Investigation of materials and bonding using the scanning laser acoustic microscope: Final report

Technical Report · Thu Dec 01 04:00:00 EST 1988

OSTI ID:6593524

Jones, B A; Boehning, C W

The Scanning Laser Acoustic Microscope (SLAM) is a relatively new instrument which uses properties of acoustic wave propagation to examine various material samples. Internal defects such as cracks, delaminations, voids, and inclusions can be detected nondestructively and on a real-time basis. For this reason, the SLAM system may serve as a potential replacement in situations that now call for destructive physical analysis. A considerable amount of training is necessary to enable a prospective SLAM operator to understand the complete system operation and capabilities. In addition, a considerable amount of experience is needed for an operator to evaluate the results obtained. However, with enough training and experience, a SLAM operator can identify a variety of defects; these would include defective hermetic seals on leadless hermetic packages, voids or delaminations in cermaic chip capacitors, incomplete die attachment to chip carriers, and cracks in Mn-Zn ferrites. 4 refs., 12 figs., 1 tab.

• Research Organization: Allied-Signal Aerospace Co., Kansas City, MO (USA). Kansas City Div.
• DOE Contract Number: AC04-76DP00613
• OSTI ID: 6593524
• Report Number(s): KCP-613-4033; ON: DE89004435
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420500* -- Engineering-- Materials Testing
ACOUSTIC MICROSCOPY
BONDING
DOCUMENT TYPES
FABRICATION
JOINING
LASERS
MATERIALS TESTING
MICROELECTRONICS
MICROSCOPY
NONDESTRUCTIVE TESTING
PERFORMANCE
PROGRESS REPORT
SEALS
TESTING