NBS Special Publication, Issues 400-411U.S. Government Printing Office, 1975 |
From inside the book
Results 1-5 of 36
Page 39
... active area of the device , the measurement current density is greater than the calibration current density , and the calibration curve must be shifted to ac- count for this difference ( NBS Spec . Publ . 400-8 , pp . 43-45 ) . A simple ...
... active area of the device , the measurement current density is greater than the calibration current density , and the calibration curve must be shifted to ac- count for this difference ( NBS Spec . Publ . 400-8 , pp . 43-45 ) . A simple ...
Page 40
... active area of the device by assuming one - dimensional transient heat flow for the first few milliseconds of heating . This was used to calculate of v eq ( 9 ) and together with the data of fig 30 to calculate the peak temperature ...
... active area of the device by assuming one - dimensional transient heat flow for the first few milliseconds of heating . This was used to calculate of v eq ( 9 ) and together with the data of fig 30 to calculate the peak temperature ...
Page 2
... active copper to a density of approximately 1 x 1014 cm - 3 . All that could be inferred from the IRR spectra of the four diodes on the basis of the previous studies [ 1 ] is that all the diodes except diode NBS 83-3 would show some ...
... active copper to a density of approximately 1 x 1014 cm - 3 . All that could be inferred from the IRR spectra of the four diodes on the basis of the previous studies [ 1 ] is that all the diodes except diode NBS 83-3 would show some ...
Page 3
... active , power - dissipating mode . In one version [ 6 ] , the case , ambient , or other reference point is elevated to a high temperature ( T2 ) , not exceeding the maximum junction temperature . The collector current ( I ) is set and ...
... active , power - dissipating mode . In one version [ 6 ] , the case , ambient , or other reference point is elevated to a high temperature ( T2 ) , not exceeding the maximum junction temperature . The collector current ( I ) is set and ...
Page 8
... active only during the heating por- tion of the test cycle . The switching action is provided by a switch that either interrupts the emitter current by opening the line ( series switching ) or by shunting the emitter supply current to ...
... active only during the heating por- tion of the test cycle . The switching action is provided by a switch that either interrupts the emitter current by opening the line ( series switching ) or by shunting the emitter supply current to ...
Other editions - View all
Common terms and phrases
aluminum analysis angle applied beam energy bond pairs bond pull test boron Bureau of Standards calibration capacitance Center collector curve Darlington pairs depletion detector determined diffusion diode dopant density edge electrical electron beam emitter epitaxial eyepiece frequency function germanium heating image intensity profile impurity input integrated circuits intermediate-frequency ionization junction temperature Laboratory leak loop height materials measured pull strength method microscope mixer modulation MOS capacitor n-type National Bureau NBS Spec noise noise figure obtained operating output oxide p-n junction parameters percent PHOTOLITHOGRAPHY photomask plotted power transistors probe Publ ratio region resistance measurements resistor scanning electron scanning electron microscope Semiconductor Measurement Technology sheet resistance shown in figure silicon dioxide specimen spreading resistance substrate surface switching technical technique test patterns test structures thermal resistance thickness tion two-level bond values voltage wafer width wire bonds
Popular passages
Page 53 - A special series of interim or final reports on work performed by NBS for outside sponsors (both government and non-government). In general, initial distribution is handled by the sponsor; public distribution is by the National Technical Information Services (Springfield, Va.
Page 19 - Handbooks — Recommended codes of engineering and industrial practice (including safety codes) developed in cooperation with interested industries, professional organizations, and regulatory bodies. Special Publications...
Page ii - In no case does such identification imply recommendation or endorsement by the National Bureau of Standards, nor does it imply that the materials or equipment identified are necessarily the best available for the purpose.
Page 42 - ... materials needed by industry, commerce, educational institutions, and Government; provides advisory and research services to other Government Agencies; develops, produces, and distributes Standard Reference Materials; and provides calibration services.
Page 22 - NATIONAL BUREAU OF STANDARDS The National Bureau of Standards' was established by an act of Congress March 3, 1901. The Bureau's overall goal is to strengthen and advance the Nation's science and technology and facilitate their effective application for public benefit. To this end. the Bureau conducts research and provides...
Page 24 - THE INSTITUTE FOR BASIC STANDARDS provides the central basis within the United States of a complete and consistent system of physical measurement; coordinates that system with measurement systems of other nations; and furnishes essential services leading to accurate and uniform physical measurements throughout the Nation's scientific community, industry, and commerce.