{"title":"AdAM: Adaptive Approximate Multiplier for Fault Tolerance in DNN Accelerators","authors":"Mahdi Taheri;Natalia Cherezova;Samira Nazari;Ali Azarpeyvand;Tara Ghasempouri;Masoud Daneshtalab;Jaan Raik;Maksim Jenihhin","doi":"10.1109/TDMR.2024.3523386","DOIUrl":"https://doi.org/10.1109/TDMR.2024.3523386","url":null,"abstract":"Deep Neural Network (DNN) hardware accelerators are essential in a spectrum of safety-critical edge-AI applications with stringent reliability, energy efficiency, and latency requirements. Multiplication is the most resource-hungry operation in the neural network’s processing elements. This paper proposes a scalable adaptive fault-tolerant approximate multiplier (AdAM) tailored for ASIC-based DNN accelerators at the algorithm and circuit levels. AdAM employs an adaptive adder that relies on an unconventional use of input Leading One Detector (LOD) values for fault detection by optimizing unutilized adder resources. A gate-level optimized LOD design and a hybrid adder design are also proposed as a part of the adaptive multiplier to improve the hardware performance. The proposed architecture uses a lightweight fault mitigation technique that sets the detected faulty bits to zero. The hardware resource utilization and the DNN accelerator’s reliability metrics are used to compare the proposed solution against the Triple Modular Redundancy (TMR) in multiplication, unprotected exact multiplication, and unprotected approximate multiplication. It is demonstrated that the proposed architecture enables a multiplication with a reliability level close to the multipliers protected by TMR while at the same time utilizing <inline-formula> <tex-math>$2.74 times $ </tex-math></inline-formula> less area and with 39.06% less power-delay product compared to the exact multiplier. Moreover, it has similar area, delay, and power consumption parameters compared to the state-of-the-art approximate multipliers with similar accuracy while providing fault detection and mitigation capability.","PeriodicalId":448,"journal":{"name":"IEEE Transactions on Device and Materials Reliability","volume":"25 1","pages":"66-75"},"PeriodicalIF":2.5,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kaining Kuang;Xinhua Guo;Zhengyan Zhou;Chunzhen Li;Xiuwan Li
{"title":"Mission Profile-Based Hotspot Temperature and Lifespan Estimation of DC-Link Capacitors Used in Automotive Traction Inverters","authors":"Kaining Kuang;Xinhua Guo;Zhengyan Zhou;Chunzhen Li;Xiuwan Li","doi":"10.1109/TDMR.2024.3523341","DOIUrl":"https://doi.org/10.1109/TDMR.2024.3523341","url":null,"abstract":"In electric vehicles (EVs), film capacitors are installed in the traction inverter to reduce ripple current. However, the lifespan of commercial film capacitors is highly sensitive to temperature fluctuations. The high ambient temperature within the traction inverter often leads to the premature failure of these capacitors, severely impacting the reliability of the traction drive system. In existing studies, the internal losses of capacitors have often been treated as constant, overlooking variations caused by changes in operating conditions and aging, which results in discrepancies between predicted and actual lifespans. This paper first proposes a new finite element analysis (FEA) modelling strategy to more accurately determine the hotspot temperature rise by considering the distribution of losses within the capacitor core. Next, based on the Federal Testing Procedure -75 (FTP-75) driving cycle, the operating profile of capacitors during EV operation is obtained. Following that, the cumulative damage of the capacitor is evaluated according to Miner’s rule, and the lifespan of the film capacitors is assessed. This method can offer a reference for capacitor replacements planning.","PeriodicalId":448,"journal":{"name":"IEEE Transactions on Device and Materials Reliability","volume":"25 1","pages":"134-143"},"PeriodicalIF":2.5,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Radiation Hardened SOI LDMOS With Dual P-Type Layers Shielding Irradiation Charge Field","authors":"Xin Zhou;Jie Shen;Ziqiu Tong;Zhao Qi;Ming Qiao;Zhaoji Li;Bo Zhang","doi":"10.1109/TDMR.2024.3523577","DOIUrl":"https://doi.org/10.1109/TDMR.2024.3523577","url":null,"abstract":"In this paper, a novel radiation hardened SOI LDMOS with dual P-type layers is proposed. Based on irradiation charge field modulation, two P-type layers are introduced at the surface and bottom in N-drift region for suppressing shifts of both specific on-resistance <inline-formula> <tex-math>$(R_{textrm {on,sp}})$ </tex-math></inline-formula> and breakdown voltage (BV). Irradiation charge field is shielded by the P-type layers at low drain voltage and electron behavior in the bulk is protected against the modulation, resulting in <inline-formula> <tex-math>$R_{textrm {on,sp}}$ </tex-math></inline-formula> shifting less significantly. Besides, net charge density in drift region is reduced by the P-type layers, and then surface electric field is weakened at source side, resulting in a non-monotonic shift in BV. A low net charge density with high donor doping concentration in P-N-P drift region is pursued instead of charge balance required in traditional design. Simulated optimized results show that <inline-formula> <tex-math>$R_{textrm {on,sp}}$ </tex-math></inline-formula> shifts only 11.4% at TID <inline-formula> <tex-math>${=} 300$ </tex-math></inline-formula>krad(Si).","PeriodicalId":448,"journal":{"name":"IEEE Transactions on Device and Materials Reliability","volume":"25 1","pages":"144-149"},"PeriodicalIF":2.5,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"TechRxiv: Share Your Preprint Research with the World!","authors":"","doi":"10.1109/TDMR.2024.3520737","DOIUrl":"https://doi.org/10.1109/TDMR.2024.3520737","url":null,"abstract":"","PeriodicalId":448,"journal":{"name":"IEEE Transactions on Device and Materials Reliability","volume":"24 4","pages":"664-664"},"PeriodicalIF":2.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10812357","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"IEEE Transactions on Device and Materials Reliability Publication Information","authors":"","doi":"10.1109/TDMR.2024.3516717","DOIUrl":"https://doi.org/10.1109/TDMR.2024.3516717","url":null,"abstract":"","PeriodicalId":448,"journal":{"name":"IEEE Transactions on Device and Materials Reliability","volume":"24 4","pages":"C2-C2"},"PeriodicalIF":2.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10812356","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"TDMR December 2024 Editorial","authors":"Edmundo Gutierrez","doi":"10.1109/TDMR.2024.3508312","DOIUrl":"https://doi.org/10.1109/TDMR.2024.3508312","url":null,"abstract":"","PeriodicalId":448,"journal":{"name":"IEEE Transactions on Device and Materials Reliability","volume":"24 4","pages":"470-470"},"PeriodicalIF":2.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10812355","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"IEEE Transactions on Device and Materials Reliability Information for Authors","authors":"","doi":"10.1109/TDMR.2024.3516718","DOIUrl":"https://doi.org/10.1109/TDMR.2024.3516718","url":null,"abstract":"","PeriodicalId":448,"journal":{"name":"IEEE Transactions on Device and Materials Reliability","volume":"24 4","pages":"C3-C3"},"PeriodicalIF":2.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10812196","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Blank Page","authors":"","doi":"10.1109/TDMR.2024.3516719","DOIUrl":"https://doi.org/10.1109/TDMR.2024.3516719","url":null,"abstract":"","PeriodicalId":448,"journal":{"name":"IEEE Transactions on Device and Materials Reliability","volume":"24 4","pages":"C4-C4"},"PeriodicalIF":2.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10812197","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Editorial on EOS","authors":"Ming-Dou Ker","doi":"10.1109/TDMR.2024.3507412","DOIUrl":"https://doi.org/10.1109/TDMR.2024.3507412","url":null,"abstract":"","PeriodicalId":448,"journal":{"name":"IEEE Transactions on Device and Materials Reliability","volume":"24 4","pages":"471-471"},"PeriodicalIF":2.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10812359","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Call for Nominations for Editor-in-Chief","authors":"","doi":"10.1109/TDMR.2024.3513737","DOIUrl":"https://doi.org/10.1109/TDMR.2024.3513737","url":null,"abstract":"","PeriodicalId":448,"journal":{"name":"IEEE Transactions on Device and Materials Reliability","volume":"24 4","pages":"663-663"},"PeriodicalIF":2.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10812200","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}