{"project":{"acronym":"","projectId":9211,"title":"Wide-Temperature Radiation-Hardened Interface Chipsets Utilizing Delay-Insensitive Asynchronous Logic","primaryTaxonomyNodes":[{"taxonomyNodeId":10799,"taxonomyRootId":8816,"parentNodeId":10795,"level":3,"code":"TX10.3.4","title":"Operational Trust Building","definition":"Operational trust building technologies assure that the system is operating in a manner consistent with expectations of all elements.","exampleTechnologies":"Aircraft Flight Mode Annunciators (FMA), aircraft navigation performance monitoring, transition of autonomy levels between crewed and uncrewed habitats","hasChildren":false,"hasInteriorContent":true}],"startTrl":2,"currentTrl":3,"endTrl":3,"benefits":"A proven and characterized DI cell library in high-power wide-temperature SOI technology completes a bridge for a reliable digital design technique between silicon, SiGe mixed-signal circuits and high-power applications. Further, as state-of-the-art RS-485 chips have limited voltage and temperature ranges for space applications (min. -55o C), producing a wide-temperature (cryogenic rated) radiation-hardened RS-485 interface has immediate usefulness to NASA and clearly advances the state of the art with the opportunities for integration it provides. Wide-temperature radiation hardened RS-485 interfaces that can be integrated with digital, analog and power IP blocks would provide boundless applications and point the way forward for distributed space electronics.
DI logic in wide-temperature, high-power SOI technology offers a potential solution to digital circuitry for harsh radiation environments such as aerospace. The aerospace electronics market alone is predicted to be a $138 billion market in 2011. The success and qualification of rad-hard DI logic will allow for the creation of commercial integrated solutions in this market. Additional potential markets in the commercial sector are numerous. The designed DI-NCL asynchronous digital standard cell library can be applied to the creation of custom and general-purpose processing technology for integrated power electronics, such as DC-DC converters commonly needed in solar, wind and other alternative energy architectures. The design techniques and circuit topologies proven in the course of the research can be applied to alternative IC processes enabling new capability including wide-temperature sensing and control electronics.","description":"There is a continual drive to move electronics out of the \"warm box\" to their point of use on space platforms. This requires electronics that can operate reliably over a wide range of temperatures and in the presence of radiation. The range of functions needed at various points across a given platform require use of digital, analog and high-voltage circuits, partitioned either independently or in combinations on the same chips. Currently, there is no \"common denominator\" integrated circuit process that can effectively support all applications; extreme-environment systems must include the best-in-class technologies. Circuit design techniques which can produce hardened circuits across a number of technology nodes are essential to producing IP that can be ported and applied to the best technology for the task at hand. Delay-insensitive (DI) asynchronous digital logic, such as NULL Convention Logic (NCL) is one such technique that can be applied to produce radiation-hardened wide-temperature electronics across many process nodes. DI logic can produce circuits with wide-temperature, threshold-independent operation and has shown tremendous potential for radiation-hardness through use of its dual-rail encoding scheme. DI logic has been successfully demonstrated in digital and mixed-signal applications down to 130nm in bulk silicon and SiGe processes over a wide range of temperature. An opportunity thus exists to apply the asynchronous DI approach to other space-applicable technologies where reliable digital processing needed, including SOI for high-voltage processes for power processing and conditioning. Proposed is the design of a wide-temperature wide-voltage range RS-485 interface suitable for power and actuator control applications built using DI-NCL gates and wide-temperature design techniques in a high-power radiation-hard process.","startYear":2012,"startMonth":2,"endYear":2012,"endMonth":8,"statusDescription":"Completed","principalInvestigators":[{"contactId":28291,"canUserEdit":false,"firstName":"Anthony","lastName":"Francis","fullName":"Anthony M Francis","fullNameInverted":"Francis, Anthony M","middleInitial":"M","primaryEmail":"francis@ozarkic.com","publicEmail":true,"nacontact":false}],"programDirectors":[{"contactId":206378,"canUserEdit":false,"firstName":"Jason","lastName":"Kessler","fullName":"Jason L Kessler","fullNameInverted":"Kessler, Jason L","middleInitial":"L","primaryEmail":"jason.l.kessler@nasa.gov","publicEmail":true,"nacontact":false}],"programExecutives":[{"contactId":215154,"canUserEdit":false,"firstName":"Jennifer","lastName":"Gustetic","fullName":"Jennifer L Gustetic","fullNameInverted":"Gustetic, Jennifer L","middleInitial":"L","primaryEmail":"jennifer.l.gustetic@nasa.gov","publicEmail":true,"nacontact":false}],"programManagers":[{"contactId":62051,"canUserEdit":false,"firstName":"Carlos","lastName":"Torrez","fullName":"Carlos Torrez","fullNameInverted":"Torrez, Carlos","primaryEmail":"carlos.torrez@nasa.gov","publicEmail":true,"nacontact":false}],"projectManagers":[{"contactId":434612,"canUserEdit":false,"firstName":"Shawn","lastName":"Wallace","fullName":"Shawn Wallace","fullNameInverted":"Wallace, Shawn","primaryEmail":"Kevin.s.Wallace@nasa.gov","publicEmail":true,"nacontact":false},{"contactId":461333,"canUserEdit":false,"firstName":"Theresa","lastName":"Stanley","fullName":"Theresa M Stanley","fullNameInverted":"Stanley, Theresa M","middleInitial":"M","primaryEmail":"theresa.m.stanley@nasa.gov","publicEmail":true,"nacontact":false}],"coInvestigators":[{"contactId":320248,"canUserEdit":false,"firstName":"Matt","lastName":"Francis","fullName":"Matt Francis","fullNameInverted":"Francis, Matt","publicEmail":true,"nacontact":false}],"website":"","libraryItems":[],"transitions":[{"transitionId":65720,"projectId":9211,"transitionDate":"2012-08-01","path":"Closed Out","closeoutDocuments":[{"title":"Final Summary Chart","file":{"fileExtension":"pdf","fileId":305894,"fileName":"SBIR_2011_1_FSC_X6.02-9582","fileSize":293143,"objectId":65720,"objectType":{"lkuCodeId":1841,"code":"TRANSITION_FILES","description":"Transition Files","lkuCodeTypeId":182,"lkuCodeType":{"codeType":"OBJECT_TYPE","description":"Object Type"}},"fileSizeString":"286.3 KB"},"transitionId":65720,"fileId":305894}],"infoText":"Closed out","infoTextExtra":"","dateText":"August 2012"}],"responsibleMd":{"acronym":"STMD","canUserEdit":false,"city":"","external":false,"linkCount":0,"organizationId":4875,"organizationName":"Space Technology Mission Directorate","organizationType":"NASA_Mission_Directorate","naorganization":false,"organizationTypePretty":"NASA Mission Directorate"},"program":{"acronym":"SBIR/STTR","active":true,"description":"
The NASA SBIR and STTR programs fund the research, development, and demonstration of innovative technologies that fulfill NASA needs as described in the annual Solicitations and have significant potential for successful commercialization. If you are a small business concern (SBC) with 500 or fewer employees or a non-profit RI such as a university or a research laboratory with ties to an SBC, then NASA encourages you to learn more about the SBIR and STTR programs as a potential source of seed funding for the development of your innovations.
The SBIR and STTR programs have 3 phases:
The SBIR and STTR Phase I contracts last for 6 months with a maximum funding of $125,000, and Phase II contracts last for 24 months with a maximum funding of $750,000 - $1.5 million.
Opportunity for Continued Technology Development Post-Phase II:
The NASA SBIR/STTR Program currently has in place two initiatives for supporting its small business partners past the basic Phase I and Phase II elements of the program that emphasize opportunities for commercialization. Specifically, the NASA SBIR/STTR Program has the Phase II Enhancement (Phase II-E) and Phase II eXpanded (Phase II-X) contract options.
Please review the links below to obtain more information on the SBIR/STTR programs.
Provides an overview of the SBIR and STTR programs as implemented by NASA
Provides access to the annual SBIR/STTR Solicitations containing detailed information on the program eligibility requirements, proposal instructions and research topics and subtopics
Schedule and links for the SBIR/STTR solicitations and selection announcements
Federal and non-Federal sources of assistance for small business
Search our complete archive of awarded project abstracts to learn about what NASA has funded
Still have questions? Visit the program FAQs
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