ASTM_E_1854_-_13.pdf

Designation:E185413Standard Practice forEnsuring Test Consistency in Neutron-InducedDisplacement Damage of Electronic Parts1This standard is issued under the fixed designation E1854;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice sets forth requirements to ensure consis-tency in neutron-induced displacement damage testing ofsilicon and gallium arsenide electronic piece parts.This re-quires controls on facility,dosimetry,tester,and communica-tions processes that affect the accuracy and reproducibility ofthese tests.It provides background information on the technicalbasis for the requirements and additional recommendations onneutron testing.1.2 Methods are presented for ensuring and validatingconsistency in neutron displacement damage testing of elec-tronic parts such as integrated circuits,transistors,and diodes.The issues identified and the controls set forth in this practiceaddress the characterization and suitability of the radiationenvironments.They generally apply to reactor sources,accelerator-based neutron sources,such as 14-MeV DTsources,and252Cf sources.Facility and environment charac-teristics that introduce complications or problems areidentified,and recommendations are offered to recognize,minimize or eliminate these problems.This practice may beused by facility users,test personnel,facility operators,andindependent process validators to determine the suitability of aspecific environment within a facility and of the testing processas a whole.Electrical measurements are addressed in otherstandards,such as Guide F980.Additional information onconducting irradiations can be found in Practices E798 andF1190.This practice also may be of use to test sponsors(organizations that establish test specifications or otherwisehave a vested interest in the performance of electronics inneutron environments).1.3 Methods for the evaluation and control of undesiredcontributions to damage are discussed in this practice.Refer-ences to relevant ASTM standards and technical reports areprovided.Processes and methods used to arrive at the appro-priate test environments and specification levels for electronicssystems are beyond the scope of this practice;however,theprocess for determining the 1-MeV equivalent displacementspecifications from operational environment neutron spectrashould employ the methods and parameters described herein.Some important considerations and recommendations are ad-dressed in Appendix X1(Nonmandatory information).1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 The ASTM standards listed below present methods forensuring proper determination of neutron spectra and fluences,gamma-ray doses,and damage in silicon and gallium arsenidedevices.The proper use of these standards is the responsibilityof the radiation metrology or dosimetry organization affiliatedwith facility operations.The references listed in each standardare also relevant to all participants as background material fortesting consistency.2.2 ASTM Standards:2E170 Terminology Relating to Radiation Measurements andDosimetryE181 Test Methods for Detector Calibration and Analysis ofRadionuclidesE261 Practice for Determining Neutron Fluence,FluenceRate,and Spectra by Radioactivation TechniquesE262 Test Method for Determining Thermal Neutron Reac-tion Rates and Thermal Neutron Fluence Rates by Radio-activation TechniquesE263 Test Method for Measuring Fast-Neutron ReactionRates by Radioactivation of Iron1This practice is under the jurisdiction of ASTM Committee E10 on NuclearTechnology and Applicationsand is the direct responsibility of SubcommitteeE10.07 on Radiation Dosimetry for Radiation Effects on Materials and Devices.Current edition approved June 1,2013.Published July 2013.Originally approvedin 1996.Last previous edition approved in 2007 as E1854-07.DOI:10.1520/E1854-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 E264 Test Method for Measuring Fast-Neutron ReactionRates by Radioactivation of NickelE265 Test Method for Measuring Reaction Rates and Fast-Neutron Fluences by Radioactivation of Sulfur-32E393 T