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2016 IEEE Electrical Design of Advanced Packaging and Systems (EDAPS)最新文献

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Thermal-mechanical analysis of packaged power amplifiers based on heterogeneous integrations using photosensitive BCB 基于光敏BCB非均质集成封装功率放大器的热力学分析
Pub Date : 1900-01-01 DOI: 10.1109/EDAPS.2016.7893117
Rong-Liang Cai, Cheng-rui Zhang, Liang Zhou
This study demonstrated the fabrication integration process of two cascaded GaAs MMICs using BCB films in order to achieve heterogeneous integration. Thermal-mechanical analysis has been simulated and performed to investigate the distributions of the temperature and stress. It has been found that the maximum temperature in the packaging depended on the dissipated power of the RF medium power amplifier. Although the temperature would not exceed the channel temperature of the dies in this case, the materials may also exceed their yield strength which will cause the reliability issues. This research will help to understand significant thermal and mechanical issues of high density IC packaging.
本研究演示了利用BCB薄膜制备两个级联GaAs mmic的集成过程,以实现异质集成。通过模拟热力学分析来研究温度和应力的分布。研究发现,射频中功率放大器封装的最高温度取决于其耗散功率。虽然在这种情况下温度不会超过模具的通道温度,但材料也可能超过其屈服强度,这将导致可靠性问题。这项研究将有助于了解高密度集成电路封装的重要热学和机械问题。
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引用次数: 3
A miniaturized module for Bluetooth low energy by embedding all passive components 一种嵌入所有无源元件的小型低功耗蓝牙模块
Pub Date : 1900-01-01 DOI: 10.1109/EDAPS.2016.7893146
Jongin Ryu, Hae Jin Kim, Se-Hoon Park, J. Chul
This paper presents a compact module for a Bluetooth Low Energy (BLE) by embedding all passive components as capacitors, inductors, and resistors. Passive or active components are embedded in printed-circuit-board (PCB) as called as System-on-Package (SoP). A proposed module is composed of a BLE IC, a memory, a 3-axis sensor, a crystal, inductors, capacitors, and resistors. In side view, ICs and a PCB with passive components are sequentially located from top and bottom. Capacitors, inductors and resistors are embedded in PCB. In order to check the performance and size for embedded modules, two representative modules for BLE with SMT and with SoP are designed and compared. The size of module with SMT and SoP are as 11 mm × 8 mm and 6 mm × 8 mm, respectively. Almost 44.5 % size reduction is obtained by SoP. Measured Tx power in Bluetooth are given as −2.0 dBm and BLE has good performance. This paper presented that SoP technology was better than SMT technology in a view of size. Implemented module had good performance and slim size.
本文提出了一个紧凑的低功耗蓝牙(BLE)模块,通过嵌入所有无源元件作为电容器,电感器和电阻。无源或有源元件被嵌入印刷电路板(PCB)中,称为系统级封装(SoP)。提出的模块由BLE IC、存储器、3轴传感器、晶体、电感、电容和电阻组成。从侧面看,ic和带无源元件的PCB依次从上到下排列。电容器、电感和电阻嵌入在PCB中。为了检查嵌入式模块的性能和尺寸,设计了两个具有代表性的带SMT和带SoP的BLE模块并进行了比较。SMT和SoP模块的尺寸分别为11mm × 8mm和6mm × 8mm。通过SoP可使粒径减小44.5%。蓝牙的实测Tx功率为−2.0 dBm,具有良好的性能。从尺寸的角度来看,SoP技术优于SMT技术。实现的模块具有良好的性能和小巧的尺寸。
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引用次数: 0
Tamper resistance evaluation of PUF in environmental variations PUF在环境变化中的抗篡改性评价
Pub Date : 1900-01-01 DOI: 10.1109/EDAPS.2016.7893141
M. Yoshikawa, Y. Nozaki
The damage caused by counterfeits of semiconductors has become a serious problem. Recently, a physical unclonable function (PUF) has attracted attention as a technique to prevent counterfeiting. The present study investigates an arbiter PUF, which is a typical PUF. The vulnerability of a PUF against machine-learning attacks has been revealed. It has also been indicated that the output of a PUF is inverted from its normal output owing to the difference in environmental variations, such as the changes in power supply voltage and temperature. The resistance of a PUF against machine-learning attacks due to the difference in environmental variation has seldom been evaluated. The present study evaluated the resistance of an arbiter PUF against machine-learning attacks due to the difference in environmental variation. By performing an evaluation experiment using a simulation, the present study revealed that the resistance of an arbiter PUF against machine-learning attacks due to environmental variation was slightly improved. However, the present study also successfully predicted more than 95% of the outputs by increasing the number of learning cycles. Therefore, an arbiter PUF was revealed to be vulnerable to machine-learning attacks even after environmental variation.
半导体仿冒品造成的损失已经成为一个严重的问题。最近,物理不可克隆功能(PUF)作为一种防伪技术引起了人们的关注。本文研究的是一种典型的仲裁PUF。PUF在机器学习攻击方面的漏洞已经暴露出来。还表明,由于环境变化的差异,例如电源电压和温度的变化,PUF的输出与正常输出相反。由于环境变化的差异,PUF对机器学习攻击的抵抗力很少被评估。本研究评估了由于环境变化的差异,仲裁PUF对机器学习攻击的抵抗力。通过使用模拟进行评估实验,本研究表明,由于环境变化,仲裁PUF对机器学习攻击的抵抗力略有提高。然而,通过增加学习周期的数量,本研究也成功地预测了95%以上的输出。因此,即使在环境变化之后,仲裁者PUF也容易受到机器学习攻击。
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引用次数: 0
Schur complement preconditioner for fast 3D full-wave MoM package-board extraction 舒尔补体预处理快速3D全波MoM包装板提取
Pub Date : 1900-01-01 DOI: 10.1109/EDAPS.2016.7893153
Y. K. Negi, N. Balakrishnan, S. Rao, D. Gope
In this paper, a preconditioning technique based on the Schur complement method is presented to accelerate the convergence of fast near-linear complexity iterative Method of Moments (MoM) solution. The Schur complement method diagonalizes the near field blocks to a block-diagonal form which can be used as an effective preconditioner to expedite the iterative solver convergence. Numerical experiments demonstrate a significant advantage over ILUT or recently published null-field based methods.
本文提出了一种基于Schur补法的预处理技术来加速矩量迭代法(MoM)快速近线性解的收敛性。Schur补法将近场块对角化为块对角形式,可作为加速迭代求解器收敛的有效预条件。数值实验表明,与ILUT或最近发表的基于空字段的方法相比,该方法具有显著的优势。
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引用次数: 4
Coupled electrical-thermal-fluid simulation for large-scale circuits with integrated microchannels 集成微通道大规模电路的电-热-流耦合仿真
Pub Date : 1900-01-01 DOI: 10.1109/EDAPS.2016.7893164
Tianjian Lu, Jianming Jin
A coupled electrical-thermal-fluid simulation technique is developed based on the finite element method. The coupled simulation, which integrates the full-wave electromagnetic, fluid, and transient conjugate heat transfer analyses into an iterative scheme, is devised for circuit designs with integrated micro channel cooling. The motion of fluid flow is decoupled from temperature under the assumption of incompressible and fully developed flows. The full-wave electromagnetic and the transient conjugate heat transfer analyses are coupled through temperature-dependent material properties. The efficiency of the coupled simulation is enhanced through several numerical techniques including an adaptive time stepping scheme, a domain decomposition scheme called the finite element tearing and interconnecting (FETI), and FETI-enabled parallel computing. The capability and the efficiency of the coupled simulation are demonstrated through a numerical example.
提出了一种基于有限元法的电-热-流耦合仿真技术。耦合仿真将全波电磁、流体和瞬态共轭传热分析集成到一个迭代方案中,用于集成微通道冷却的电路设计。在不可压缩和充分发展的流动假设下,流体运动与温度解耦。全波电磁和瞬态共轭传热分析通过温度相关的材料特性耦合。通过自适应时间步进方案、称为有限元撕裂和互连(FETI)的域分解方案以及支持FETI的并行计算等数值技术,提高了耦合模拟的效率。通过数值算例验证了耦合模拟的能力和效率。
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引用次数: 0
Simulation based generation of X-parameters using the harmonic balance first moment 基于仿真的谐波平衡一阶矩生成x参数
Pub Date : 1900-01-01 DOI: 10.1109/EDAPS.2016.7893161
Raffi Toukhtarian, D. Tannir, F. Nabki, R. Khazaka
As the complexity of radio frequency circuits increases, the generation of macromodels for circuit blocks that can be used in system simulations has become increasingly useful and even necessary. Recently X-parameters1 have been proposed as an extension to the concept of S-Parameters in order to create a macromodel that captures some of the key nonlinearities in the circuit. In this paper, an efficient semi-analytical approach for the computation of X-parameters is presented. More specifically, a clear relation between the X-parameters and the circuit moments is developed, which in turn facilitates the application of moments to further improve the efficiency of X-parameter generation.
随着射频电路复杂性的增加,生成可用于系统仿真的电路块宏模型变得越来越有用甚至是必要的。最近,x参数1被提出作为s参数概念的扩展,以便创建一个宏观模型,该模型可以捕获电路中一些关键的非线性。本文给出了计算x参数的一种有效的半解析方法。更具体地说,建立了x参数与电路矩之间的明确关系,从而便于矩的应用,进一步提高x参数生成的效率。
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引用次数: 4
A new pinwheel meander-perforated plane structure for noise suppression in system-on-package 一种用于系统级封装噪声抑制的新型风车弯曲穿孔平面结构
Pub Date : 1900-01-01 DOI: 10.1109/EDAPS.2016.7893142
Youngbong Han, H. Huynh, Soyoung Kim
As the market of wearable and internet of things (IoT) expands, there is a strong demand of shrinking the size of System-on-Package (SoP). In this paper, we propose a new electromagnetic bandgap structure (EBG) to mitigate the noise coupling within SoPs. EBGs have been widely used in printed circuit boards (PCB). Thus, the EBG size reduction is critical for integrating it in the package. The proposed structure has a unique noise suppressing pinwheel meander perforated plane structure (PMPP) that can be used in small size package. Critical problem of EBG's size reduction is shifting the suppression frequency to higher. Therefore, we propose to combine the EBG structure, meander-line, and pinwheel shaped patch to reduce size of EBG unit cell from 12.2mm×12.2mm to 2.44mm×2.44mm while maintaining the suppression frequency and bandwidth. The stop band bandwidth of proposed structure is 3.58∼12.83GHz.
随着可穿戴和物联网(IoT)市场的扩大,对系统级封装(SoP)尺寸的缩小需求日益强烈。在本文中,我们提出了一种新的电磁带隙结构(EBG)来减轻sop内部的噪声耦合。电子束在印刷电路板(PCB)中得到了广泛的应用。因此,EBG尺寸的减小对于将其集成到封装中至关重要。该结构具有独特的噪声抑制风车弯曲穿孔平面结构(PMPP),可用于小尺寸封装。EBG减小的关键问题是将抑制频率调高。因此,我们提出将EBG结构、曲线形和风车形贴片相结合,在保持抑制频率和带宽的同时,将EBG单元胞的尺寸从12.2mm×12.2mm减小到2.44mm×2.44mm。该结构的阻带带宽为3.58 ~ 12.83GHz。
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引用次数: 3
Crosstalk analysis for varying degree of in-pair coupling in coupled differential pairs 耦合差分对中不同程度对内耦合的串扰分析
Pub Date : 1900-01-01 DOI: 10.1109/EDAPS.2016.7893135
K. Sharma, S. Agili, Stephen B. Smith
Differentially-routed traces on printed circuit boards typically incorporate loose in-pair coupling when compared to the coupling between the traces and the ground planes. Loose coupling facilitates in-pair skew correction without affecting the differential-mode impedance. However, practical channels combine printed circuit boards with other components that have different degrees of in-pair coupling which could affect the crosstalk among adjacent pairs. This paper examines the effects of different degrees of in-pair coupling on near end crosstalk in the absence of in-pair skew. The analysis will help printed circuit board designers to choose the desired degree of in-pair coupling to achieve targeted near end crosstalk performance.
印刷电路板上的差分走线与走线和接地面之间的耦合相比,通常采用松散的对内耦合。松耦合有助于在不影响差模阻抗的情况下对斜校正。然而,实际通道将印刷电路板与其他具有不同程度的对内耦合的组件组合在一起,这可能会影响相邻对之间的串扰。本文研究了在不存在对内偏的情况下,不同程度的对内耦合对近端串扰的影响。分析将帮助印刷电路板设计人员选择所需的对内耦合程度,以实现目标的近端串扰性能。
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引用次数: 0
Differential-to-common mode conversion noise suppression with unit cell EBG structure for bended differential lines 弯曲差分线的单位胞EBG结构差分共模转换噪声抑制
Pub Date : 1900-01-01 DOI: 10.1109/EDAPS.2016.7893137
Sangyeol Oh, B. Shin, Jaehyuk Lim, Seungjin Lee, Jaehoon Lee
In order to reduce differential-to-common mode conversion noise in bended differential lines, we propose a unit cell electromagnetic bandgap (EBG) structure. The proposed structure compensates for mismatches of inductances and capacitances between inner and outer lines of the bended differential lines. Its performances of the common-mode noise suppression in frequency and time domains were verified by 3D full wave simulator, HFSS. Also, in order to verify the simulated results, the bended differential lines with the proposed unit cell EBG structure was fabricated and measured. As a result, suppression level of the differential-to-common mode conversion noise is below −20 dB from DC to 6 GHz, and Time-Domain-Through (TDT) common-mode noise voltage is reduced as compared with that of conventional bended differential lines.
为了降低弯曲差分线的差共模转换噪声,提出了一种单元格电磁带隙(EBG)结构。所提出的结构补偿了弯曲差分线内外线之间电感和电容的不匹配。通过三维全波模拟器HFSS验证了该方法在频域和时域的共模噪声抑制性能。此外,为了验证模拟结果,制作并测量了具有所提出的单元格EBG结构的弯曲差分线。结果表明,从直流到6 GHz,差分到共模转换噪声的抑制水平低于- 20 dB,并且与传统弯曲差分线相比,时域通(TDT)共模噪声电压降低。
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引用次数: 2
Audio frequency ground integrity modeling and measurement for a TDMA smartphone system TDMA智能手机系统音频接地完整性建模与测量
Pub Date : 1900-01-01 DOI: 10.1109/EDAPS.2016.7893110
Shinyoung Park, Jinwook Song, Subin Kim, Manho Lee, Jonghoon J. Kim, Joungho Kim
In this paper, we first propose a ground network model of an arbitrary shaped multi-layer printed circuit board (PCB)/chassis for accurate and efficient analysis of audio frequency ground noise coupled from a time division multiple access (TMDA) RF power amplifier (PA) to an audio circuit in a smartphone system. We designed test vehicles with varied extent in the ground noise coupling. We successfully verified the proposed model by comparing the ground noise coupling levels obtained from the model, 3-D electromagnetic (EM) simulation and measurement in time and frequency domain. We further discussed the performance of the proposed model by comparing the accuracy of its transfer ground impedance (ZG12) and analysis time with those of from the EM simulation. The proposed model showed high performance with the ZG12 agreed 91.7 % with the EM simulation, and the analysis time 95.5 % reduced compared to the simulation.
在本文中,我们首先提出了一种任意形状的多层印刷电路板(PCB)/机箱的接地网络模型,用于准确有效地分析智能手机系统中时分多址(TMDA)射频功率放大器(PA)与音频电路耦合的音频地面噪声。我们设计了不同程度的地面噪声耦合试验车辆。通过比较模型、三维电磁仿真和时域、频域测量得到的地面噪声耦合水平,成功地验证了所提出的模型。我们进一步讨论了该模型的性能,通过比较其传输地阻抗(ZG12)的精度和分析时间与电磁仿真的精度。该模型具有较高的性能,ZG12与仿真结果的符合率为91.7%,分析时间比仿真结果缩短了95.5%。
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引用次数: 3
期刊
2016 IEEE Electrical Design of Advanced Packaging and Systems (EDAPS)
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