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2008 International Conference on Electronic Packaging Technology & High Density Packaging最新文献

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Introduction of Microelectronics Manufacturing Engineering into professional education: a joint effort among industry, government and universities 将微电子制造工程引入专业教育:工业界、政府和大学的共同努力
K. Pan, Daoguo Yang, Qiao Kai, Kouchi Zhang, L. Yang
In order to promote the professional education and meet the requirements for the well-qualified technicians of the microelectronics industry , the higher education division of the education ministry and Intel (China) jointly initiated and setup a new mode of higher professional education faculty training:ldquo2008 Microelectronics Manufacturing Engineering Faculty Training Camprdquo, of which the ldquoIntel-GUET Microelectronics Packaging & Assembly Technology Faculty Training Camprdquo was organized and implemented by Guilin University of Electronic Technology (GUET). The program includes three parts: basic theories and experiments, one weekpsilas industry visit & investigation, and one weekpsilas education reform discussion & forum. In this paper, the initiatives, curriculum structure, and hands-on training, etc. were presented. The activities and the achievements of this joint faculty training are summarized.
为推进微电子专业教育,满足微电子行业对高素质技术人员的需求,教育部高等教育司与英特尔(中国)共同发起并建立了高等专业教育师资培养新模式:ldquo2008微电子制造工程师资培训园区。其中,由桂林电子科技大学(GUET)组织实施的ldquoIntel-GUET微电子封装与组装技术教师培训项目。活动内容包括基础理论与实验、为期一周的行业考察与调研、为期一周的教育改革讨论与论坛三个部分。在本文中,提出了倡议,课程结构和实践培训等。总结了此次教师联合培训的活动和成果。
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引用次数: 5
Synthesis of high purity o-cresol novolac epoxy resins 高纯度邻甲酚环氧树脂的合成
Xiao-Wei Tian, Zhenguo Yang, Jiang-yan Sun, Zheng Ji
O-cresol novolac epoxy resins are used widely as electronic encapsulating materials. When the pitch wires in electronic systems are more slender, there are pressing demands for high purity o-cresol novolac epoxy resin which are with little content of hydrolyzable chloride. In this paper, o-cresol novolac resin was synthesized from para-formaldehyde and o-cresol in the presence of a mixed catalyst (oxalic acid and another co-catalyst). Then, the resultant resin was further reacted with epichlorohydrin to prepare o-cresol novolac epoxy resin. The performances and structure of o-cresol novolac resin and o-cresol novolac epoxy resin were characterized by epoxy equivalent weight, softening point, the content of hydrolyzable chloride and inorganic chlorine, FTIR, 13CNMR. And the relationships between the performances and the reaction conditions were also studied. The results indicate that, o-cresol novolac epoxy resins were synthesized with certain performances through the adjustment of the reaction conditions, which were suited for the pressing demands for high purity applications.
邻甲酚环氧树脂是一种应用广泛的电子封装材料。随着电子系统中螺距线的细长化,对高纯度、低水解氯含量的邻甲酚环氧树脂提出了迫切的要求。本文以多聚甲醛和邻甲酚为原料,在混合催化剂(草酸和另一种助催化剂)的作用下合成了邻甲酚新型丙烯酸树脂。然后将合成的树脂与环氧氯丙烷进一步反应,制得邻甲酚环氧树脂。通过环氧当量、软化点、可水解氯和无机氯含量、FTIR、13CNMR表征邻甲酚新酚醛树脂和邻甲酚新酚醛环氧树脂的性能和结构。研究了其性能与反应条件的关系。结果表明,通过调整反应条件,合成了具有一定性能的邻甲酚环氧树脂,满足了高纯度应用的迫切要求。
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引用次数: 3
Preparation of polysulfoneamide electrospinning nanofibers 聚砜酰胺静电纺丝纳米纤维的制备
Li Liu, Yinggang Shi, Qinghua Jiao, Yanan Wu, Zhikun Zhang, J. Liu
In this paper, we select electrospinning technique to fabricate polysulfonamide nanofibers. Polysulfonamide with relatively high inherent viscosity was prepared based on 4,4'-diaminodiphenylsulfone and terephthaloyl chloride in the common solvent N,N-Dimethylacetamide (DMAc) by the method of low-temperature solution condensation polymerization. Our research work focused on studying the effect of concentration of solution, processing parameters including voltage and distance from tip to collector on the spinnability of the solution and morphology electrospun polysulfonamid fibers. The microstructures of the electrospun polysulfonamid fibers were quantitively investigated by scanning electron microscope (SEM) as a function of processing variables.
本文采用静电纺丝技术制备聚磺胺纳米纤维。以4,4′-二氨基二苯基砜和对苯二酰氯为原料,在N,N-二甲基乙酰胺(DMAc)为常用溶剂,采用低温溶液缩聚法制备了具有较高固有粘度的聚磺酰胺。研究了溶液浓度、工艺参数(电压、针尖到集电极的距离)对溶液可纺性和静电纺聚砜纶纤维形态的影响。利用扫描电子显微镜(SEM)定量研究了静电纺聚砜纶纤维的微观结构与工艺参数的关系。
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引用次数: 1
Microstructure and properties of barium strontium titanate thin films prepared on copper foils via addition of PEG to the sol precursor 溶胶前驱体中加入聚乙二醇制备钛酸锶钡薄膜的微观结构和性能
Yanhua Fan, Shuhui Yu, R. Sun, Lei Li, Mian Huang, Yan-sheng Yin, L. Wan
Ba0.7Sr0.3TiO3 thin films have been deposited on copper foils via sol-gel method. The films have been processed in almost inert atmosphere so that the substrate oxidation is avoided while allowing the perovskite phase to crystallize. Polyethylene glycol (PEG) with the molecular weight of 200 was employed to modify the BST precursor solutions. The effect of PEG on the microstructure and dielectric properties of BST thin films has been investigated. Leakage current for BST thin film made from the sol with PEG modification is reported.
采用溶胶-凝胶法制备了Ba0.7Sr0.3TiO3薄膜。薄膜是在几乎惰性的气氛中处理的,这样可以避免衬底氧化,同时允许钙钛矿相结晶。采用分子量为200的聚乙二醇(PEG)对BST前驱体溶液进行改性。研究了聚乙二醇对BST薄膜微观结构和介电性能的影响。报道了用聚乙二醇改性的溶胶制备的BST薄膜的泄漏电流。
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引用次数: 3
Research on the contact resistance and reliability of flexible RFID tag inlays packaged by anisotropic conductive paste 各向异性导电浆料封装柔性RFID标签嵌体的接触电阻及可靠性研究
Xiong-hui Cai, B. An, Yi-Ping Wu, Feng-shun Wu, Xiao-wei Lai
In this work, ACA was prepared by mixing micro-sized spherical Ag particles and latent curing agent into thermo-set epoxy resin, and RFID flip chips were assembled on the Al/PET, printed Ag/PET and printed Ag/paper antennae through hot-press bonding process. The contact resistance and shear bonding strength before and after the reliability tests (hot humidity test, 85degC, RH 85%), and degradation mechanism of ACA interconnection for flip-chip-on-flex (FCOF) assembly were studied using modified RFIC and the three kinds of antennae mentioned above. It was found that the contact resistance changed after the reliability test, it was caused by the total results of oxidation of Al/PET antennae and conductive particles, mismatch of coefficient of thermal expansion (CTE) between the ACA adhesive, antennae and flip-chips and post curing of resin. And the bonding strength also affect by the further curing of paste, strain release accumulated in resin and the microstructure change caused by moisture absorption during the reliability test. It was concluded that it was benefit to improve the reliability of FCOF assembly packaged by ACA by introducing the post curing process. And it was suggested that selecting the anti-oxidation conductor and the anti-heat substrate of antennae could decrease the shift of contact resistance, which was especially favored for ultra-high frequency RFID tag. Therefore, the printed Ag/paper antenna was preferred to large scale, cheap and rapid manufacturing RFID tags.
本研究通过在热固性环氧树脂中混合微型球形Ag颗粒和潜固化剂制备ACA,并通过热压键合工艺将RFID倒装芯片组装在Al/PET、印刷Ag/PET和印刷Ag/纸天线上。采用改进的RFIC和上述三种天线,研究了fof组件在可靠性试验(热湿试验、85℃、RH 85%)前后的接触电阻和剪切粘接强度,以及ACA互连的退化机理。结果表明,接触电阻在可靠性试验后发生了变化,这是由于Al/PET天线与导电颗粒氧化、ACA胶粘剂、天线与倒装芯片的热膨胀系数(CTE)失配以及树脂后固化等因素共同作用的结果。膏体的进一步固化、树脂中积累的应变释放以及可靠性试验中吸湿引起的微观结构变化也会影响粘接强度。结果表明,引入后固化工艺有利于提高ACA封装fof组件的可靠性。选择抗氧化导体和天线的防热衬底可以减小接触电阻的位移,这对超高频RFID标签尤其有利。因此,印刷银/纸天线比大规模、廉价和快速制造RFID标签更受青睐。
{"title":"Research on the contact resistance and reliability of flexible RFID tag inlays packaged by anisotropic conductive paste","authors":"Xiong-hui Cai, B. An, Yi-Ping Wu, Feng-shun Wu, Xiao-wei Lai","doi":"10.1109/ICEPT.2008.4606959","DOIUrl":"https://doi.org/10.1109/ICEPT.2008.4606959","url":null,"abstract":"In this work, ACA was prepared by mixing micro-sized spherical Ag particles and latent curing agent into thermo-set epoxy resin, and RFID flip chips were assembled on the Al/PET, printed Ag/PET and printed Ag/paper antennae through hot-press bonding process. The contact resistance and shear bonding strength before and after the reliability tests (hot humidity test, 85degC, RH 85%), and degradation mechanism of ACA interconnection for flip-chip-on-flex (FCOF) assembly were studied using modified RFIC and the three kinds of antennae mentioned above. It was found that the contact resistance changed after the reliability test, it was caused by the total results of oxidation of Al/PET antennae and conductive particles, mismatch of coefficient of thermal expansion (CTE) between the ACA adhesive, antennae and flip-chips and post curing of resin. And the bonding strength also affect by the further curing of paste, strain release accumulated in resin and the microstructure change caused by moisture absorption during the reliability test. It was concluded that it was benefit to improve the reliability of FCOF assembly packaged by ACA by introducing the post curing process. And it was suggested that selecting the anti-oxidation conductor and the anti-heat substrate of antennae could decrease the shift of contact resistance, which was especially favored for ultra-high frequency RFID tag. Therefore, the printed Ag/paper antenna was preferred to large scale, cheap and rapid manufacturing RFID tags.","PeriodicalId":6324,"journal":{"name":"2008 International Conference on Electronic Packaging Technology & High Density Packaging","volume":"97 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2008-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81324849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Improvement of power integrity with novel segmented power bus structures in RF/digital SOP 射频/数字SOP中采用新型分段电源总线结构提高电源完整性
Jun Li, L. Wan, Wei Gao, C. Liao
With the voltage decreasing in power distribution network (PDN) in system-on-packages (SOPs), power integrity will be a critical issue. The cavity resonance modes between power and ground planes can be excited by simultaneous switching noise (SSN) or ground bounce noise (GBN) [1], [2]. To cut down the noise from susceptible devices, isolation techniques are necessary. In this paper, two novel structures combine segmented method and embedded capacitor provided isolation performances from 0.7 GHz to 10 GHz below -40 dB. The novel structures with a bridge for suppressing noise in high frequency and a thin high K dielectric substrate for decreasing the SSN in the entire frequency band. And they were better in performance and simpler in configuration than Electromagnetic Band Gap (EBG) and other isolation structures. Moreover, the analytical process could be a guidance to find better structures for improving the noise isolation.
随着单包系统(SOPs)配电网(PDN)中电压的不断降低,电源的完整性将成为一个关键问题。同时开关噪声(SSN)或地弹跳噪声(GBN)[1],[2]可以激发功率和地平面之间的腔谐振模式。为了降低易受影响设备的噪声,隔离技术是必要的。本文提出了两种结合分段方法和嵌入式电容的新型结构,在-40 dB以下提供了0.7 GHz到10 GHz的隔离性能。该新型结构具有抑制高频噪声的桥和降低全频段SSN的薄高K介电衬底。与电磁带隙(EBG)和其他隔离结构相比,它们具有更好的性能和更简单的结构。此外,分析过程可以指导找到更好的结构,以提高噪声隔离。
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引用次数: 3
Combinational test generation for transition faults in acyclic sequential circuits 非循环顺序电路中过渡故障的组合测试生成
Shi Hui, Ran Feng, Zhang Jinyi
This paper presents a combinational test generation method for transition faults in acyclic sequential circuits. In this method, to generate test sequences for transition faults in a given acyclic sequential circuit is performed on its extend time-expansion model. The model is composed of two copies of time-expansion model of the given circuit and extends in the close two sequences to generate 2 vectors for the transition faults with some restrictions. Experimental results show the method can achieve the higher fault efficiency with the lower test generation times than conventional method.
提出了一种非循环顺序电路过渡故障的组合测试生成方法。该方法在给定的非循环时序电路的扩展时间展开模型上生成过渡故障的测试序列。该模型由给定电路的时间展开模型的两个副本组成,并在闭合的两个序列中进行扩展,生成两个具有一定限制的过渡故障向量。实验结果表明,与传统方法相比,该方法能以更少的测试生成次数获得更高的故障效率。
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引用次数: 0
FEA based reliability prediction for different Sn-based solders subjected to fast shear and fatigue loadings 基于有限元分析的不同锡基焊料在快速剪切和疲劳载荷作用下的可靠性预测
R. Dudek, E. Kaulfersch, S. Rzepka, M. Rollig, B. Michel
Recent studies revealed that there is no simple ldquodrop inrdquo solution for the lead-free replacement of SnPb joints, instead different Sn-based solders are advantageous for different use conditions, which can be dominated either by drop loading or by thermal cyclic loading in harsh use conditions. By way of high-speed shear testing reliability assessments of components during drop and shock events can be studied in a simplified manner. Dynamic 3-D finite element simulations have been performed applying explicit FEA to replicate the shear tests virtually. It was shown in this way that SAC 1305 solder outperformed SAC 387 solder. The low cycle fatigue behavior of different SAC alloys is additionally of interest. Fatigue life predictions require both the constitutive description of the lead-free solders and a fatigue hypothesis linked to the material selected. Based on recently measured creep properties the solder joint creep strain and creep dissipation responses were analyzed for several components and thermal cycling conditions. The results based upon non-linear finite element calculations indicate different trends for creep strain and energy dissipation: while the first is clearly increasing with lowered alloying Ag-content, the latter is almost stable and does only slightly vary. Furthermore, these trends are different for different test- and field cycling conditions as well as the different components studied.
近年来的研究表明,目前还没有简单的ldquodrop钎料替代SnPb接头的无铅方案,不同的锡基钎料适用于不同的使用条件,在恶劣的使用条件下,可采用滴注加载或热循环加载。通过高速剪切试验,可以简化构件在跌落和冲击过程中的可靠性评估。采用显式有限元法对剪切试验进行了三维动态有限元模拟。通过这种方式表明,SAC 1305焊料优于SAC 387焊料。不同SAC合金的低周疲劳性能也令人感兴趣。疲劳寿命预测既需要无铅焊料的本质描述,也需要与所选材料相关的疲劳假设。基于最近测量的蠕变特性,分析了不同组分和热循环条件下焊点的蠕变应变和蠕变耗散响应。基于非线性有限元计算的结果表明,蠕变应变和能量耗散的变化趋势不同:蠕变应变和能量耗散随着合金ag含量的降低而明显增加,而能量耗散则基本稳定,变化不大。此外,这些趋势对于不同的试验和现场循环条件以及不同的研究成分是不同的。
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引用次数: 1
A study of thermal performance for the panel base package (PBP™) technology 面板基包(PBP™)技术的热性能研究
M. Yew, Chun-Fai Yu, M. Tsai, D. Hu, Wen-Kung Yang, K. Chiang
A new panel base package (PBP) technology that was developed based on the concepts of the wafer level package (WLP) has been proposed in order to obtain the signal fan-out capability for the fine-pitched integrated circuit (IC). In the PBP, the chip is attached to a selected chip carrier, and the volume of IC devices is extended for the redistribution of the original die pads. In this study, the thermal performance of the PBP technology was investigated and discussed through three-dimensional finite element (FE) analysis. In order to compare the thermal performance between conventional WLP and the proposed PBP, the junction temperature of WLP was also recorded through the modified FE model. The results showed that due to the larger packaging size of the PBP structure, the added solder bumps can be used as thermal balls. Moreover, they can effectively reduce the packaging thermal resistance (from 55degC/W to 41degC/W). It is expected that thermal performance could be further improved by applying solder paste between the chip and chip carrier. The study likewise discussed the condition of forced convection and developed the PBP technology for high-density IC devices. In light of the results obtained from this study, we believe in our new PBB technologypsilas great potential for future applications.
为了获得细间距集成电路(IC)的信号扇出能力,在晶圆级封装(WLP)概念的基础上,提出了一种新的面板基封装(PBP)技术。在PBP中,芯片被附加到选定的芯片载体上,并且IC器件的体积被扩展以重新分配原始的模垫。本研究通过三维有限元分析对PBP技术的热性能进行了研究和讨论。为了比较传统WLP和所提出的PBP的热性能,还通过改进的有限元模型记录了WLP的结温。结果表明,由于PBP结构的封装尺寸较大,添加的焊料凸起可以用作热球。此外,它们可以有效地降低封装热阻(从55℃/W降至41℃/W)。通过在芯片和芯片载体之间涂抹锡膏,可望进一步改善芯片的热性能。研究还讨论了强制对流的条件,并开发了高密度集成电路器件的PBP技术。根据这项研究的结果,我们相信我们的新PBB技术在未来的应用中具有巨大的潜力。
{"title":"A study of thermal performance for the panel base package (PBP™) technology","authors":"M. Yew, Chun-Fai Yu, M. Tsai, D. Hu, Wen-Kung Yang, K. Chiang","doi":"10.1109/ICEPT.2008.4606935","DOIUrl":"https://doi.org/10.1109/ICEPT.2008.4606935","url":null,"abstract":"A new panel base package (PBP) technology that was developed based on the concepts of the wafer level package (WLP) has been proposed in order to obtain the signal fan-out capability for the fine-pitched integrated circuit (IC). In the PBP, the chip is attached to a selected chip carrier, and the volume of IC devices is extended for the redistribution of the original die pads. In this study, the thermal performance of the PBP technology was investigated and discussed through three-dimensional finite element (FE) analysis. In order to compare the thermal performance between conventional WLP and the proposed PBP, the junction temperature of WLP was also recorded through the modified FE model. The results showed that due to the larger packaging size of the PBP structure, the added solder bumps can be used as thermal balls. Moreover, they can effectively reduce the packaging thermal resistance (from 55degC/W to 41degC/W). It is expected that thermal performance could be further improved by applying solder paste between the chip and chip carrier. The study likewise discussed the condition of forced convection and developed the PBP technology for high-density IC devices. In light of the results obtained from this study, we believe in our new PBB technologypsilas great potential for future applications.","PeriodicalId":6324,"journal":{"name":"2008 International Conference on Electronic Packaging Technology & High Density Packaging","volume":"51 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2008-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87591303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
DPA tests on SiP device SiP设备上的DPA测试
Jin Ling, H. Jun, Han Li
The reliability of multi-dice in package was studied in this paper; DPA tests were operated on qualified devices to distribute early failure from overstress failure. Then factorial experiments manipulated on early failure samples for failure analysis. Comparing the C-SAM images before and after a series reliability tests, the reliability of SiP devices was confirmed.
本文研究了多骰子封装的可靠性问题;在合格的设备上进行DPA试验,以分配超应力破坏引起的早期破坏。然后对早期失效样本进行析因实验,进行失效分析。通过一系列可靠性测试前后的C-SAM图像对比,验证了SiP器件的可靠性。
{"title":"DPA tests on SiP device","authors":"Jin Ling, H. Jun, Han Li","doi":"10.1109/ICEPT.2008.4606953","DOIUrl":"https://doi.org/10.1109/ICEPT.2008.4606953","url":null,"abstract":"The reliability of multi-dice in package was studied in this paper; DPA tests were operated on qualified devices to distribute early failure from overstress failure. Then factorial experiments manipulated on early failure samples for failure analysis. Comparing the C-SAM images before and after a series reliability tests, the reliability of SiP devices was confirmed.","PeriodicalId":6324,"journal":{"name":"2008 International Conference on Electronic Packaging Technology & High Density Packaging","volume":"22 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2008-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80511118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
2008 International Conference on Electronic Packaging Technology & High Density Packaging
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