SMC-TR-98-16 AEROSPACE REPORT NO. TR-93(3940)-4 Overview of Device SEE Susceptibility from Heavy Ions 15 January 1998 Prepared by D. K. NICHOLS, J. R. COSS, K. P. McCARTY, H. R. SCHWARTZ, L. S. SMITH, G. M. SWIFT, and R. K. WATSON Jet Propulsion Laboratory Pasadena, CA and R. KOGA, W. R. CRAIN, K. B. CRAWFORD, AND S. J. HANSEL Space and Environment Technology Center Technology Operations The Aerospace Corporation Prepared for SPACE AND MISSILE SYSTEMS CENTER AIR FORCE MATERIEL COMMAND 2430 E. El Segundo Boulevard Los Angeles Air Force Base, CA 90245 Engineering and Technology Group CSP Ekffi QuXXR' ' IB APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED THE AEROSPACE CORPORATION El Segundo, California This report was submitted by The Aerospace Corporation, El Segundo, CA 90245-4691, under Contract No. F04701-93-C-0094 with the Space and Missile Systems Center, 2430 E. El Segundo Blvd., Suite 6037, Los Angeles AFB, CA 90245-4687. It was reviewed and approved for The Aerospace Corporation by A. B. Christensen, Principal Director, Space and Environment Technology Center. Maj. J. W. Cole was the project officer for the Mission- Oriented Investigation and Experimentation Program (MODS) program. This report has been reviewed by the Public Affairs Office (PAS) and is releasable to the National Technical Information Service (NTIS). At NTIS, it will be available to the general public, including foreign nationals. This technical report has been reviewed and is approved for publication. Publication of this report does not constitute Air Force approval of the report's findings or conclusions. It is published only for the exchange and stimulation of ideas. J. W. Cole, Maj. USAF ' SMC/AXES l l REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188), Washington, DC 20503. 1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED 15 January 1998 4. TITLE AND SUBTITLE 5. FUNDING NUMBERS Overview of Device SEE Susceptibility from Heavy Ions F04701-93-C-0094 6. AUTHOR(S) Nichols, D.K., Coss, J. R. McCarty, K. P., Schwartz, H. R., Smith, L. S., Swift, G. M., Watson, R. K., Jet Propulsion Laboratory; Koga, R., Grain, W.R., PrawfrrH V Tt anH Han^l S T Thf» Af».msnare> Cnrnnratinn 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION REPORT NUMBER The Aerospace Corporation Technology Operations TR-93(3940)-4 El Segundo, CA 90245-4691 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING/MONITORING Space and Missile Systems Center AGENCY REPORT NUMBER Air Force Materiel Command SMC-TR-98-16 2430 E. El Segundo Blvd. Los Angeles Air Force Base. CA 90245 11. SUPPLEMENTARY NOTES 12a. DISTRIBUTION/AVAILABILITY STATEMENT 12b. DISTRIBUTION CODE Approved for public release; distribution unlimited 13. ABSTRACT (Maximum 200 words) A fifth set of heavy ion single event effects (SEE) test data have been collected since the last IEEE publications (1,2,3,4) in December issues for 1985,1987,1989, and 1991. Trends in SEE susceptibility (including soft errors and latchup) for state-of-the-art parts are evaluated. 14. SUBJECT TERMS 15. NUMBER OF PAGES Heavy ion accelerator Linear energy transfer Single event effects 16 Heavy ion irradiation effects Microcircuits Single event upset 16. PRICE CODE Latchup Radiation effects Space-borne electronics 17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATION 19. SECURITY CLASSIFICATION 20. LIMITATION OF ABSTRACT OF REPORT OF THIS PAGE OF ABSTRACT Unclassified Unclassified Unclassified Standard Form 298 (Rev. 2-89) NSN 7540-01-280-5500 Prescribed by ANSI Std. Z39-18 298-102 OVERVIEW OF DEVICE SEE SUSCEPTIBILITY FROM HEAVY IONS D. K. Nichols, J. R. Coss, K. P. McCarty, H. R. Schwartz, L. S. Smith, G. M. Swift, R. K. Watson Jet Propulsion Laboratory California Institute of Technology Pasadena, California and R. Koga, W. R. Crain, K. B. Crawford, S. J. Hansel Space Sciences Laboratory The Aerospace Corporation El Segundo, California Abstract Organization and Scope of Data A fifth set of heavy ion single event effects (SEE) test This paper summarizes soft error and latchup data have been collected since the last IEEE publications (1,2, experimental test data from the Jet Propulsion Laboratory 3, 4) in December issues for 1985, 1987, 1989 and 1991. (JPL), The Aerospace Corporation (A), John Hopkins Applied Trends in SEE susceptibility (including soft errors and Physics Laboratory (JH), Centre National DEtudes Spatiales latchup) for state-of-the-art parts are evaluated. (CNES, France), European Space Agency (ESA) and other SEE testers. These data are provided directly to JPL or were otherwise made available to the community during the two- Introduction year period from January, 1991, through December, 1992. We are pleased to include smaller SEE data sets generated by all Ongoing SEE test programs at JPL .The Aerospace U. S. and foreign researchers when these data are made Corporation, the European Space Agency (ESA), CNES and directly available to us. Not included are proprietary data other organizations are continuing to assess specific part generated by subcontractors who used JPL hardware. Also performance for interplanetary and satellite environments and omitted are now fairly extensive data sets on power transistor to establish SEE response trends of an ever-increasing body of burnout obtained by JPL, Rockwell, Boeing and others- such device data. data require a significantly different organization. In 1985, Nichols et al (Ref. 1) published the first nearly The SEE data presented here and in the previous four comprehensive listing of SEE test data for 186 parts. This reports (1,2,3, 4) represent a substantial majority of all test presentation was updated in 1987 (Ref. 2) with the publication data obtained on SEE throughout the world. Some additional of data for 83 additional parts, in 1989 (Ref. 3) with data for data may exist in other articles of this publication (IEEE- 154 parts, and in 1991 (Ref. 4) with data for 182 parts. In this Nuclear Science [Dec. 1993] or this conference's JEEE paper, the authors extend the data base for 165 new parts. As Workshop Record), in other journals or in published and before, the data are collected according to technology, unpublished presentations of SEE symposia. function and manufacturer in order to identify trends, generalizations and data gaps. The data from all organizations are summarized and collected together even though there are differences in the data from each organization. For example, JPL defines the threshold LET as that value of LET where soft errors are first Testing Approaches counted at fluences of 106 ions/cm2; Aerospace now defines their LET threshold as occurring at that point where the The experimental procedures, such as those used by JPL measured upset cross section is 0.01 times the measured and The Aerospace Corporation, are evolutionary and are maximum cross section, CNES reports a threshold at 0.1 times described in detail from time to time in December issues of the saturated cross section. JPL's definition virtually IEEE Transactions on Nuclear Science (5,6) or in in-house guarantees no upset below threshold but results in an reports. In general, procedures comply with the guidelines for overestimate of error rate if the cross section is erroneously SEE testing set forth by the ASTM Fl.l 1 document (7). They assumed to be constant at all LETs greater than the threshold also comply with a JEDEC 13.4 document in preparation, LET. Specifying a threshold LET at a fraction of the saturated "Test Procedure for the Measurement of Single Event Effects cross section attempts to approximate the error rate better, but in Semiconductor Devices from Heavy Ion Irradiation." it introduces an arbitrary factor (to account for the slope of the cross section vs. LET) and an assumption that the saturated Some colleagues have commented that a measure of the value is known and/or achieved with the highest LET test ions. shape of the cross sections vs. LET might be useful- such as given by a tabulation of the Weibull parameters. Others point The best way to calculate error rates is to use the full out that it may be more difficult to assure that such parameters curve of cross section vs. LET, which may be available from are properly derived and applied than it is to calculate SEE the parent test organization M , and integrate it over all angles rates directly from known (and readily available) experimental and all ions of various LETs. But even this method, which cross sections. involves the use of a computer, relies critically on what assumptions are made about grazing ion impacts and the Program managers concerned with critical system dimensions of the device cell's sensitive volume. reliability issues will ultimately need an appropriate set of cross sectional data to assess statistical features and focus on All data are presently divided into two tables. Table 1 specific answers. Ballpark estimates will also have a place, has been revised to include all SEE (soft error) data for both however, by helping assure that expensive experiments are MOS/CMOS and bipolar devices. Table 2 exhibits data for limited to only critical SEE issues. "Latchup Tests Only". All data listed here represent a substantial abbreviation and ignore statistical features altogether. LET limits are for nominal effective values An Evaluation of SEE Data without correction for degradation that can occur when an ion traverses device overlayers. Gold data, in particular, are Microprocessors seldom as damaging as one would expect on the basis of nominal LET and such data are labeled when known, and Au JPL tested a large body of SEE data for microprocessors testing is usually not recommended. SEE tests use a dynamic this year, mostly with 16-bit and 32-bit capability. Soft error nominal bias (often 4.5 or 5.0 V); latchup tests are usually thresholds are consistently low for all high-capability performed at the maximum value of the nominal bias range machines, with LET(th) ranging from approximately 1 to 10 (e.g. 5.5V) ~ a condition usually (but not always) enhancing MeV/(mg/cm2). Important exceptions are two 16-bit devices the possibility of latchup. Reported data were taken at room by Marconi (GEC-Plessey), using their well-established SEE- temperature or ambient temperature; higher test temperature resistant SOS technology. Most microprocessors are not very measurements may exist for some parts. In some instances, susceptible to latchup although there are exceptions (e.g. the data on transients is noted, which may or may or may not IDT R3000 and R3000A.) The Intel CHMOSIV technology is impact electronics down the line. Hence, a system designer marginally susceptible to latchup, whereas its earlier interested in a specific part is again urged to contact the CHMOSIII technology was not. There is a very large set of appropriate test organization for further information. data from ESA and Harris on the R3000 and R3000A RISC developed by many manufacturers. Users are cautioned that manufacturers (Appendix I defines manufacturer abbreviations) may often change their Questions raised last year regarding the best approach to process, and resultant SEE susceptibility, without changing microprocessor testing remain open. The purists argue that the part number or notifying tester organizations. Hence, a static testing of known registers in a known state is the best test of flight parts is always a good policy. approach to understanding SEE effects. JPL presently pursues this view and has demonstrated that not all elements of a Trends & Limitations microprocessor are equally SEE-susceptible. The pragmatists claim that testing with dynamic programs (the more the better) Trends and device comparisons in the recent data are will usually show that static tests provide an unrealistic worst offered in the "Remarks" column of Tables 1 and 2 and in the case. following section. However, the organized tabular format is designed to facilitate comparisons. Special studies (such as Some data taken by European groups at GANIL, the variation of SEE response with temperature) or a comparison higher-energy (10 to 100 MeV/amu) cyclotron in France, are between high energy (GANIL) heavy ion data and that from available. The results suggest that these ions, which are more the lower energy Berkeley 88-inch cyclotron and BNL Van de representative of interplanetary cosmic rays, are more Graaff are beyond the scope of this presentation. In addition, damaging than the familiar lower-energy (2 MeV/amu) ions test data for the whole class of catastrophic failures of power provided by Brookhaven's Van de Graaff and Berkeley's 88- transistors, both MOSFET and bipolar, has recently been inch cyclotron. Direct comparisons between energy regimes organized by Nichols under a substantially different format are few. It will also be observed in Table 1 that there are data for sveiv^earail cwounturoululearss a«unidu ppriuoucesssssuorrss oorf vvaarriioouuss ttyyppeess,. Tl hneeyy hnaavv e W JPL data, including more recent results, may be accessed direcdy similarly low soft error thresholds [< 10 MeV/(mg/cm2)] and from JPL's computer data base, RADATA. varying latchup susceptibility. Analop-to-Digital Converters (ADCs) and overheating may occur. Also presented are data for GANIL which appears to have a devastating effect- including There are several data sets for ADCs and data for two latchup in several devices with epi technology. Once again a digital-to-analog converters (DACs). Much of the data were need to compare data on identical parts for both high energy taken by JPL in a quest for the least SEE-susceptible 12-bit GANIL ions and lower-energy ions is manifest ADC. The MAXIM devices were clear standouts in this subcategory, but one observes that a completely hard ADC or JPL was able to employ Cf-252 usefully for the first DAC is a rarity. This is one device type where knowledge of time- as a screen to reject some ADCs because of latchup. It how the device ties in with the system is an all-important is cautioned, however, that Cf-252 can never be used to pass a consideration in assessing its ultimate suitability. part for latchup because of the possibility that the fission ions do not have adequate range to maintain an adequate LET Static RAMs CSRAMs) while generating a funnel at the well-substrate junction. There is much new data to add to the accumulation for Latchup observed by MIT-Lincoln Lab in the NSC SRAMS-with device sizes up to 4 Mbits. All devices employ driver/receivers 26C31 & 26C32, a pair of linear devices, is variations of CMOS technology this test period, and SOI and explained by Sferrino [9]. He notes that the chips have tri- SOS offer markedly superior resistance to soft errors and stated digital outputs, comprising an npn and pnp transistor in latchup. Epi technology (where the epi layer is less than -10 series- the familiar structure for latchup paths. This result microns thick) is a good guarantee against latchup but offers suggests that other transistor arrangements, such as silicon - no significant advantages against soft errors. A tendency controlled-rectifiers, may be susceptible to latchup. toward stuck bits was observed in the 0.5 micron feature-size Hitachi 4M SRAM. Conclusions Other RAMS The new data presented here can be combined with data ESA tested a large set of 4M DRAMs and observed a given in References (1, 2, 3 and 4) to develop certain consistent very low soft error threshold typical of this device generalizations useful for protecting flight electronics from function. Some non-volatile RAMs were tested- with two SEE. Hard technologies and unacceptably soft technologies Ferroelectric RAMs (FRAMs) for the first time. Some can be flagged. In some instances, specific tested parts can be bipolar and CMOS PROMs exhibited relatively high SEU taken as candidates for key functions- such as thresholds, but one should note that PROMs are occasionally microprocessing or memory. As always with radiation test susceptible to latchup. data, specific test data for qualified flight parts is recommended for critical applications. Calculations of accurate SEE rates will require the assistance of a computer Gate Arrays & Bus Controllers code, a well-defined environment [in terms of flux vs. LET] and a complete device characterization [cross section vs. LET Several gate arrays, configured in different ways, were at the appropriate temperature.] Evaluation of catastrophic tested. It is difficult to sort out the large variability in soft effects requires its own statistical treatment, in which flares error threshold— even among devices made by the same are considered. The recent concern of JPL and others with manufacturer. It is encouraging that no cases of latchup were power transistor burnout and single event gate rupture is reported. beyond the scope of this compendium. Latchup Data Acknowledgments Tests for latchup only are much easier to set up than At JPL special thanks are due to Charles Barnes, those designed to measure soft errors as well. Such data are Radiation Effects & Testing supervisor, and Mike O'Connor. given separately in Table 2- primarily for devices with different variations of CMOS technology. It has so far held The research described in this publication was carried out true that bipolar devices will not latchup with heavy ions. by the Jet Propulsion Laboratory, California Institute of However, latchup has occurred in bipolar devices when Technology, under a contract with the National Aeronautics exposed to high intensity gamma pulses, and the requisite and Space Administration. Special thanks are also extended pnpn parasitic structure exists. by all to Dr. Peter Thieberger and staff at the Brookhaven National Laboratory Van de Graaff facility and to Dr. Claude The LET thresholds listed in Table 2 are for latchup Lyneis, Peggy McMahan and staff at the Lawrence Berkeley only, and cross section data is rarer because of the difficulty in Laboratory, 88-inch cyclotron facility- for their excellent obtaining repeat measurements where catastrophic burnout support. Appendix I - Manufacturer Abbreviations TOS Toshiba TRW TRW Inc. UTM United Technologies Microelectronics Center ACT Actel Corp. WAF Waferscale ADA Advanced Analog XIC Xicorlnc. ADI Analog Devices Inc. XIL XilinxCorp. ALS Allied Signal ZOR Zoran ALT AlteraCorp. ZYR Zyrel AMD Advanced Microdevices Corp. ATM Atmel ATT American Tel & Tel Appendix II-Test Organizations BUB Burr-Brown Research CRY Crystal Semiconductor Inc. A The Aerospace Corporation; El Segundo, CA CYP Cypress Corp. BPS Boeing Physical Sciences Research Center, Seattle DAT Datei CLM Clemson University; Clemson, SC DDC DDC ILC Data Device Corp. CNES Centre National dEtudes Spatiales; Toulouse, France EDI EDI Corp. ESA European Space Agency- several facilities FER Ferranti GD General Dynamics FUJ Fujitsu Ltd. GDD NASA Goddard Space Flight Center, Greenbelt, MD GEC GE GE GETSCO, Philadelphia HAR Harris Corp., Semiconductor Div. HAR Harris Semiconductor, Melbourne, FL HIT Hitachi Ltd. HON Honeywell, Clearwater, FL HON Honeywell Inc. J Jet Propulsion Laboratory (JPL); Pasadena, CA IBM IBM JH John Hopkins Applied Physics Laboratory; Laurel, IDT Integrated Device Technologies, Inc. MD INM INMOS Corporation LIN Lincoln Laboratories, M. I. T.; Cambridge, MA INT Intel Corp. MMS Matra Marconi Space; Velizy, France LDI Logic Devices Inc. NASA NASA LTC Linear Technology Corp. NRL Naval Research Laboratories, Washington D.C. LSI LSI Logic Corp. R Rockwell International (Anaheim, CA) MED Marconi Electronic Devices SSS S-Cubed, San Diego MCN Micron Technologies TRW TRW Space and Defense Sector (Los Angeles, CA) MIT Mitsubishi MMI Monolithic Memories Inc. MOT Motorola Semiconductor Products Inc. Appendix III - Test Facilities MPS Micro Power System MTA Matra Harris SemiconductorMXM MAXIM 88-in. = 88-inch cyclotron, Lawrence Berkeley NAT Natel Engineering Laboratory NEC Nippon Electric Corp. BNL = Tandem Van de Graaff, Brookhaven National NSC National Semiconductor Corp. Laboratory, Long Island, NY OWI Omni-Wave, Inc. Cf-252 = A Cf-252 fission source PFS Performance Semiconductor Corp. ESA = European Space Agency-several sites PLS Plessey Semiconductors GANIL = Cyclotron for Heavy Ions; Caen, France PMI Precision Monolithics, Inc. HAR = Van de Graaff at Harwell, England RAY Raytheon Co., Semiconductor Divison IPN = Tandem Van de Graaff, Institut de Physique RCA Radio Corporation of America Nucleaire; Orsay, France RTN Ramtron UW = Tandem Van de Graaff, University of SAM Samsung Washington, Seattle SEE Seiko SEQ SEEQ Technology Inc. SGN Signetics Corp. SIE Siemens Inc. References SI. Silicon» SIP Sipex [1] D. K. Nichols, W. E. Price, W. A. Kolasinski, R. Koga, J. C. SLG Silicon General Pickel, J. T. Blandford, A. E. Waskiewicz, 'Trends in Parts SNL Sandia National Laboratories Susceptibility to Single Event Upset from Heavy Ions," IEEE Trans, SNY Sony Corp. on Nuc. Sei., NS-32. No. 6,4189 (Dec. 1985) SOR SOREP TEL Teledyne Crystalonics [2] D. K. Nichols, L. S. Smith, W. E. Price, R. Koga, W. A. TK Texas Instruments Inc. Kolasinski, "Recent Trends in Parts SEU Susceptibility from Heavy TMS Thomson Military & Space, France Ions", IEEE Trans on Nuc. Sei., NS-34. No. 6,1332 (Dec. 1987) [3] D. K. Nichols, L. S. (Ted) Smith, George A. Soli, R. Koga, W. A. [8] R. Koga, W. R. Chin, S. J. Hansel, S. D. Pmkerton, T. K. Tsubota, Kolasinski, "Latest Trends in Parts SEP Susceptibility from Heavy "The Impact of ASIC Devices on the SEU Vulnerability of Space- Ions," IEEE Trans, on Nuc. Sei., NS-36. No. 6,2388 (Dec. 1989) Borne Computers", Preprint, IEEE, Trans, on Nuc. Sei., NS-39. No. 6 (Dec. 1992) [4] D. K. Nichols, L. S. Smith, H. R. Schwartz, G. Soli, K. Watson, R. Koga, W. R. Crain, K. B. Crawford, S. J. Hansel and D. D. Lau, [9] Vince Sferrino, MIT Lincoln Lab, private communication. "Update on Parts SEE Susceptibility from Heavy Ions," IEEE Trans, on Nuc. Sei., NS-38. No. 6,1529 (Dec. 1991) [5] R. Koga, W. A. Kolasinski, J.V. Osbom, J. H. Elder & R. Chitty, The research described in this publication was carried out by "SEU Test Techniques..." IEEE Trans, on Nuc. Sei., NS-35. No. 6. the Jet Propulsion Laboratory, California Institute of Technology, 1638 (Dec. 1988) under a contract with the National Aeronautics and Space Administration. [6] D. K. Nichols, J. R. Coss, L. S. Smith, B. Rax, M. Huebner, K. Watson, "Full Temperature Characterization of Two Microprocessor Technologies", ibid p 1619 (Dec. 1988) Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does [7] ASTM Designation: F 1192-90, "Standard Guide for the not constitute or imply its endorsement by the United States Measurement of SEP Induced by Heavy Ion Irradiation of Semicon- Government or the Jet Propulsion Laboratory, California Institute of ductor Devices" ASTM, 1919 Race St, Philadelphia, Pa. 19103 Technology. o tSr2 Qo . oa. oo. no. CoL to OL co co CD en Sfgf £ o .o ■Ko *o ■£o *o ■*o -oE *o IS 'S £ S 8 B- 8 tuui uuii UIIII UIIII utiil t11o1 UIIII UIIII UIIII D. 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