NBS Technical NoteU.S. Government Printing Office, 1974 |
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Page 14
... electrical shocks . Certain carpet fibers have been suspected of being allergenic and it is possible that carpet might trap irritating dirt particles . Mr. Roberts of the National Bureau of Standards reported that floor care represents ...
... electrical shocks . Certain carpet fibers have been suspected of being allergenic and it is possible that carpet might trap irritating dirt particles . Mr. Roberts of the National Bureau of Standards reported that floor care represents ...
Page
... electrical shorts . . 25. Improper die placement 26. Improper placement of wire bonds on transistor chips 27. Misalignment caused by poor masking . 28 . Examples of extraneous material . • • · 25 26 2 20 27 SCANNING ELECTRON MICROSCOPE ...
... electrical shorts . . 25. Improper die placement 26. Improper placement of wire bonds on transistor chips 27. Misalignment caused by poor masking . 28 . Examples of extraneous material . • • · 25 26 2 20 27 SCANNING ELECTRON MICROSCOPE ...
Page
... electrical tests and pre - encapsulation visual examinations , many potential reliability problems were identified such as weak bonds , electrical shorts and contami- nation . Key Words : Aluminum wire ; high reliability ; integrated ...
... electrical tests and pre - encapsulation visual examinations , many potential reliability problems were identified such as weak bonds , electrical shorts and contami- nation . Key Words : Aluminum wire ; high reliability ; integrated ...
Page 14
... electrical testing of the circuit . A typical example of such a mark is shown in Figure 15. It is possible for the probe to completely scrape away the metallization as is shown in Figure 16. In any case the metallization may be scraped ...
... electrical testing of the circuit . A typical example of such a mark is shown in Figure 15. It is possible for the probe to completely scrape away the metallization as is shown in Figure 16. In any case the metallization may be scraped ...
Page 20
... electrical open - circuits . Another metallization defect , shown in Figure 24 , is the presence of small metal pieces which could become loose after packaging and could possibly cause an electrical short between two metallization ...
... electrical open - circuits . Another metallization defect , shown in Figure 24 , is the presence of small metal pieces which could become loose after packaging and could possibly cause an electrical short between two metallization ...
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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.