NBS Technical NoteU.S. Government Printing Office, 1974 |
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Page 16
... temperature and humidity varied somewhat but the temperature was about 75-80 deg . F. and the relative humidity about 20-30 percent . spite of the low humidity , there have been no complaints about static charge from the carpet ...
... temperature and humidity varied somewhat but the temperature was about 75-80 deg . F. and the relative humidity about 20-30 percent . spite of the low humidity , there have been no complaints about static charge from the carpet ...
Page 1
... temperature cycling tests are presented and used in discussing the capabilities and limitations of these methods . Key Words : Bonding ; electrical connection ; failure ( wire bond ) ; integrated circuits ; microelectronics ...
... temperature cycling tests are presented and used in discussing the capabilities and limitations of these methods . Key Words : Bonding ; electrical connection ; failure ( wire bond ) ; integrated circuits ; microelectronics ...
Page 12
... temperature extremes . The test is referred to as a thermal shock or a temperature cycling test depending on the transfer time between these two ex- tremes . A transfer time for shock tests is of the order of seconds ; for temperature ...
... temperature extremes . The test is referred to as a thermal shock or a temperature cycling test depending on the transfer time between these two ex- tremes . A transfer time for shock tests is of the order of seconds ; for temperature ...
Page 13
... temperature is dependent on the wire shape and on the differences in the thermal coefficients of expansion of the wire and the package . The contact angle for the case where the wire loop is in the shape of a circular arc is given by ...
... temperature is dependent on the wire shape and on the differences in the thermal coefficients of expansion of the wire and the package . The contact angle for the case where the wire loop is in the shape of a circular arc is given by ...
Page 14
... temperature cycles the ratio ho / do should be as large as practical . 8. Summary The test stress to which the wire bond is subjected and hence the effectiveness of the test is dependent on the dimensions of the wire loop as well as on ...
... temperature cycles the ratio ho / do should be as large as practical . 8. Summary The test stress to which the wire bond is subjected and hence the effectiveness of the test is dependent on the dimensions of the wire loop as well as on ...
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analysis Annual subscription areas asphalt tile automatic data processing Building Technology Bureau of Standards Bus-line cap gun carpet Center for Building circuit clean coating codes concrete slab concrete subfloor condition configuration connector cooling cost cracks crate cutting plants Dataway DEPARTMENT OF COMMERCE devices electrical electron energy conservation Engineering epoxy equipment Evaluation FAIRLY SATISFACTORY function Government heat industry integrated circuit laboratory loop Magnification maintenance Materials MESS HALL KITCHEN metallization methods MIDAS module National Bureau NBS Technical Note Office operating p-n junctions PASS1 PASS2 PASS3 percent Polyester polyurethane problem provides pull strength request route SATISFACTORY INSTALLATIONS scanning electron microscope Section shown in Figure silicon slab on grade sound pressure levels Standard Reference subnetwork Subroutine Table Telpak temperature terrazzo thermal thin-set terrazzo tool traffic transistor trowel-on U.S. DEPARTMENT viscosity wire bonds
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Page 43 - In no case does such identification imply recommendation or endorsement by the National Bureau of Standards, nor does it imply that the material or equipment identified is necessarily the best available for the purpose.
Page 49 - ... Superconducting Devices and Materials. A literature survey issued quarterly. Annual subscription: $20.00. Send subscription orders and remittances for the preceding bibliographic services to the US Department of Commerce, National Technical Information Service, Springfield, Va. 22151. Electromagnetic Metrology Current Awareness Service (Abstracts of Selected Articles on Measurement Techniques and Standards of Electromagnetic Quantities from DC to Millimeter- Wave Frequencies).
Page 49 - This series consists of communications and reports (covering both other-agency and NBS-sponsored work) of limited or transitory interest. Federal Information Processing Standards Publications. This series is the official publication within the Federal Government for information on standards adopted and promulgated under the Public Law 89—306, and Bureau of the Budget Circular A-86 entitled, Standardization of Data Elements and Codes in Data Systems.
Page 73 - Comprehensive scientific papers give complete details of the work, including laboratory data, experimental procedures, and theoretical and mathematical analyses. Illustrated with photographs, drawings, and charts.