S. Liu, Songjie Yao, Song Xue, Benben Wang, Hui Jin, C. Pan, Yinwei Zhang, Yijiang Zhou, Rui Zeng, Lihao Ping, Z. Min, Daxing Zhang, Congsi Wang
{"title":"Effects of interface cracks on reliability of surface mount technology interconnection in service environment","authors":"S. Liu, Songjie Yao, Song Xue, Benben Wang, Hui Jin, C. Pan, Yinwei Zhang, Yijiang Zhou, Rui Zeng, Lihao Ping, Z. Min, Daxing Zhang, Congsi Wang","doi":"10.1108/mi-10-2022-0183","DOIUrl":null,"url":null,"abstract":"\nPurpose\nSurface mount technology (SMT) is widely used and plays an important role in electronic equipment. The purpose of this paper is to reveal the effects of interface cracks on the fatigue life of SMT solder joint under service load and to provide some valuable reference information for improving service reliability of SMT packages.\n\n\nDesign/methodology/approach\nA 3D geometric model of SMT package is established. The mechanical properties of SMT solder joint under thermal cycling load and random vibration load were solved by 3D finite element analysis. The fatigue life of SMT solder joint under different loads can be calculated by using the modified Coffin–Manson model and high-cycle fatigue model.\n\n\nFindings\nThe results revealed that cracks at different locations and propagation directions have different effect on the fatigue life of the SMT solder joint. From the location of the cracks, Crack 1 has the most significant impact on the thermal fatigue life of the solder joint. Under the same thermal cycling conditions, its life has decreased by 46.98%, followed by Crack 2, Crack 4 and Crack 3. On the other hand, under the same random vibration load, Crack 4 has the most significant impact on the solder joint fatigue life, reducing its life by 81.39%, followed by Crack 1, Crack 3 and Crack 2. From the crack propagation direction, with the increase of crack depth, the thermal fatigue life of the SMT solder joint decreases sharply at first and then continues to decline almost linearly. The random vibration fatigue life of the solder joint decreases continuously with the increase of crack depth. From the crack depth of 0.01 mm to 0.05 mm, the random vibration fatigue life decreases by 86.75%. When the crack width increases, the thermal and random vibration fatigue life of the solder joint decreases almost linearly.\n\n\nOriginality/value\nThis paper investigates the effects of interface cracks on the fatigue life and provides useful information on the reliability of SMT packages.\n","PeriodicalId":49817,"journal":{"name":"Microelectronics International","volume":" ","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2023-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microelectronics International","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1108/mi-10-2022-0183","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 2
Abstract
Purpose
Surface mount technology (SMT) is widely used and plays an important role in electronic equipment. The purpose of this paper is to reveal the effects of interface cracks on the fatigue life of SMT solder joint under service load and to provide some valuable reference information for improving service reliability of SMT packages.
Design/methodology/approach
A 3D geometric model of SMT package is established. The mechanical properties of SMT solder joint under thermal cycling load and random vibration load were solved by 3D finite element analysis. The fatigue life of SMT solder joint under different loads can be calculated by using the modified Coffin–Manson model and high-cycle fatigue model.
Findings
The results revealed that cracks at different locations and propagation directions have different effect on the fatigue life of the SMT solder joint. From the location of the cracks, Crack 1 has the most significant impact on the thermal fatigue life of the solder joint. Under the same thermal cycling conditions, its life has decreased by 46.98%, followed by Crack 2, Crack 4 and Crack 3. On the other hand, under the same random vibration load, Crack 4 has the most significant impact on the solder joint fatigue life, reducing its life by 81.39%, followed by Crack 1, Crack 3 and Crack 2. From the crack propagation direction, with the increase of crack depth, the thermal fatigue life of the SMT solder joint decreases sharply at first and then continues to decline almost linearly. The random vibration fatigue life of the solder joint decreases continuously with the increase of crack depth. From the crack depth of 0.01 mm to 0.05 mm, the random vibration fatigue life decreases by 86.75%. When the crack width increases, the thermal and random vibration fatigue life of the solder joint decreases almost linearly.
Originality/value
This paper investigates the effects of interface cracks on the fatigue life and provides useful information on the reliability of SMT packages.
期刊介绍:
Microelectronics International provides an authoritative, international and independent forum for the critical evaluation and dissemination of research and development, applications, processes and current practices relating to advanced packaging, micro-circuit engineering, interconnection, semiconductor technology and systems engineering. It represents a current, comprehensive and practical information tool. The Editor, Dr John Atkinson, welcomes contributions to the journal including technical papers, research papers, case studies and review papers for publication. Please view the Author Guidelines for further details.
Microelectronics International comprises a multi-disciplinary study of the key technologies and related issues associated with the design, manufacture, assembly and various applications of miniaturized electronic devices and advanced packages. Among the broad range of topics covered are:
• Advanced packaging
• Ceramics
• Chip attachment
• Chip on board (COB)
• Chip scale packaging
• Flexible substrates
• MEMS
• Micro-circuit technology
• Microelectronic materials
• Multichip modules (MCMs)
• Organic/polymer electronics
• Printed electronics
• Semiconductor technology
• Solid state sensors
• Thermal management
• Thick/thin film technology
• Wafer scale processing.