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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/22368完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 鄭士康(Shyh-Kang Jeng) | |
| dc.contributor.author | Feng-Tsan Liang | en |
| dc.contributor.author | 梁豐贊 | zh_TW |
| dc.date.accessioned | 2021-06-08T04:16:20Z | - |
| dc.date.copyright | 2010-08-06 | |
| dc.date.issued | 2010 | |
| dc.date.submitted | 2010-08-02 | |
| dc.identifier.citation | [1] B. Li, Y. Zhang, and H. Zhang, 'High Temperature Failure Mechanism of Multi-layer Ceramic Capacitor', CICC-ITOE, pp.62-64, 2010 International Conference on Innovative Computing and Communication and 2010 Asia-Pacific Conference on Information Technology and Ocean Engineering, 2010.
[2] IC Insights, Inc., http://www.icinsights.com/ [3] M. Laps, “Capacitors for Reduced Microphonics and Sound Emission, Electronic Components”, Assemblies & Materials Association (ECA), Arlington, VACARTS 2007 Symposium Proceedings, Albuquerque, NM, 2007. [4] T. Noji, “Development of Multilayer Ceramic Capacitors with Low Microphonics”, CARTS USA, Orlando, FL, 2006. [5] P. Curie and J.Curie, Bull, Soc. Min, de France, 3, p90, 1880. [6] W.G. Hankel, Abh. Sachs., 12. p457, 1881. [7] T. L. Jordan, “Piezoelectric Ceramics Characterization”, NASA/CR-2001-211225, ICASE Report, 2001. [8] PZT Application Manual, “The Piezoelectric Effect”. [9] J. D. Prymak, “Piezoelectric Effects Ceramic Chip Capacitors (Singing Capacitors)”, Arrow Asian Times Article, 2006. [10] TDK, Mega Cap Capacitors, http://www.tdk.com. [11] 村田制作所, “金屬端子電容器的嘯叫降低作用”, Murata Manufacturing Co., Ltd., 2009. [12] Murata Manufacturing Co., Ltd., MLCC for acoustic noise, 2009. [13] S. Blatrix, Sound, http://www.neuroreille.com. [14] 國立台灣師範大學物理系物理教學示範實驗教室。 [15] 中華民國行政院環境保護署, “噪音原理防制材料簡介手冊”。 [16] M. Bosi, “Introduction to Digital Audio Coding and Standards”, Kluwer Academic Publishers, 2003. [17] 蔡國隆, 聲學基本觀念。 [18] International Standard ISO 226: Acoustics-Normal Equal Loudness Level Contours. [19] E. Zwicker and H. Fastl (1999) Psychoacoustics: Facts and Models. Berlin; New York: Springer. [20] Noise-meters, http://www.noise-meters.co.uk. [21] International Standard ISO 7779: 2001- Acoustics - Measurement of airborne noise emitted by information technology and telecommunications equipment. [22] Environmental Protection Administration, R.O.C.(Taiwan), http://www.epa.gov.tw. [23] 陳文欽, 台灣區電機電子工業同業公會, http://www.teema.org.tw. [24] Y. S. Tsai, “A Study of Laptop Computer’s Noise Standard and Its Certification System”, The 16th National Conference on Sound and Vibration, Taipei, 2008. [25] Dell Computer Corporation, http://www.dell.com. [26] Intel Corporation, http://www.intel.com. [27] 陳嘉瑞, “高效能板式熱管之研發”, 科技交流專題, 國家太空中心, pp.40-47, 2007。 [28] Hitachi Japan, http://www.hitachi.co.jp. [29] Panasonic Japan, http://panasonic.co.jp. [30] Seagate, http://www.seagate.com. [31] Seagate technology paper, FDB Motor Technology, 2001 [32] C. Dirik, “The performance of PC solid-state disks (SSDs) as a function of bandwidth, concurrency”, device architecture, and system organization, ISCA’09, Austin, Texas, USA, 2009. [33] M. Polte, “Comparing Performance of Solid State Devices and Mechanical Disks”, Proceedings of the 3rd Petascale Data Storage Workshop held in conjunction with Supercomputing '08, Austin, TX, 2008. [34] A. R. Olson, “Solid State Drives (SSD) Data Reliability and Lifetime”, Imation White Paper, 2008. [35] PChome, http://www.hmg.com.tw. [36] MSI HQ MTKG, R4830/R4850 Own Design Sales Kit, 2008. [37] MSI Taiwan, http://tw.msi.com [38] Wikipedia, http://en.wikipedia.org/wiki/Capacitor [39] B. Somanathan Nair, “Electronic Devices and Applications”, pp.13~21, 2006. [40] Fujitsu, http://www.fujitsu.com. [41] IT.com.cn, http://www.it.com.cn. [42] R. Hahn, “The Battle for Maximum Volumetric Efficiency - When Technologies Compete”, Customers Win, CARTS EU, 2007. [43] 朱永星, “高容量晶片電容器簡介”, 工業材料135期, pp.111, 1998. [44] 林宗輝, “電容器的技術與應用”, http://tech.digitimes.com.tw/。 [45] AVX Surface Mount Ceramic Capacitor Products, version 10.1. [46] M. Randall et al., “Thin film MLCC,” presented at the CARTS USA, Albuquerque, NM, Mar. 26–29, 2007. [47] C. R. Koripella, “Dielectrics beyond Barium Titanate Kemet”, Greenville, SC, 1992. [48] G. M. Harayda, “Improve Your Designs with Large Capacitance Value Multi-Layer Ceramic Chip ( MLCC ) Capacitors”, 2007. [49] C. T. Luh, “Introduction of Philips Passive Component Kaohsiung CMC/RSMD”, Application Notes, Philips Passive Component Kaohsiung, pp.14, 1999. [50] “AC Load of Ceramic Multilayer Capacitors”, Application Notes, Philips Components, pp.5-7. [51] H. Jimmy, “The Impact of Capacitors Selection and Placement to the ESL and ESR”, 2005 International Symposium on Electronics Materials and Packaging(EMAP2005), 2005. [52] M. Stewart, “Multi-Layer Ceramic Capacitor (MLCC) Termination Height - Effect on Electrical Performance”, IEEE, 2003. [53] “Basics of Ceramic Chip Capacitors”, http://www.johansondielectrics.com, 2007. [54] Murata Manufacturing Co., Ltd., “Chip Monolithic Ceramic Capacitor - Electrical Characteristic Explanation”, 2005. [55] S. Maloy, “What is the Capacitance of this Capacitor”, TDK MLCC Application Notes, 1999. [56] W. C. Lee, “Structure-dielectric properties relations in (Bi0.5Na0.5)TiO3-based lead-free piezoelectric ceramics”, Ph.D. Thesis, National Cheng Kung University Department of Resources Engineering, 2009. [57] P. Instrumente, “Fundamentals of Piezoelectricity and Piezo Actuators”, http://www.physikinstrumente.com/tutorial/4_15.html, 2004. [58] W. D. Kingery, H. K. Bowen, and D. R. Uhlmann, “Introduction to ceramics”, 2nd Ed.,John Wiley and Sons, New York, 1976. [59] Tokin Corporation, “Multilayer Piezoelectric Actuator”, User’s Manual. [60] J. W. Lee, “The Electromechanical Characteristics of Piezoelectric Buzzers and Their Applications”, Master Thesis, National United University Department of Electrical Engineering, 2007. [61] PAL Acoustics Technology Ltd., http://www.pal-acoustics.com. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/22368 | - |
| dc.description.abstract | 積層陶瓷電容器具有體積小、價格低廉、頻率特性佳等特性，同時其為表面黏著元件，使其可以大量快速生產並大幅減少元件於印刷電路板上所占的空間，目前廣泛應用訴求輕薄短小的可攜式產品與筆記型電腦中。
隨著筆記型電腦的普及，使用者陸續發現所使用的產品會產生微小的高頻異音，由於其音量極為細微，必須很靠近電腦才可以聽見，大多數的使用者認為其雖然不影響操作，但心理上仍難以容忍此不期望出現的高頻異音。探究其原因，為大量使用於筆記型電腦中的積層陶瓷電容器所引起。 由於積層陶瓷電容器其介電材料主要為鈦酸鋇類陶瓷，具有壓電特性，因此在交流電場下將會產生結構體的震動。本論文透過實驗方式驗證減少電源路徑上的漣波雜訊將能有效降低積層陶瓷電容器所引起的高頻顫噪現象，其中漣波雜訊減少了26.5%，高頻異音的響度減低19.4%，在頻率4KHz與8KHz的突出率也得到抑制。 | zh_TW |
| dc.description.abstract | Multilayer ceramic capacitor (MLCC) is of small size, low price, excellent frequency response and other characteristics, while at the same time it is surface mount components, so that it can be in rapid production and substantially reduce the share of components on the printed circuit board space, which currently widely used for portable products and laptop computers.
As the popularity of laptop computers, users have found that the product may produce a tiny high pitched noise. Because it is extremely subtle, and can be heard only very close to the computer. Although the majority of users think that it does not affect its operation, but remains psychologically difficult to tolerate this unexpected high-pitched noise. The source of this noise is the multilayer ceramic capacitors which intensively used in laptop computers. The dielectric material of multilayer ceramic capacitor is mainly barium-titanate (BaTiO3), which has ceramic piezoelectric properties, so the vibration of its structure will occur under the AC electric field. This thesis verified that through experiments reducing ripple noise in the power trace could effectively reduce the high pitched microphonics phenomenon caused by the multilayer ceramic capacitors. The experimentation results show that the ripple noise was reduces by 26.5%, the loudness of high pitched noise was reduced by 19.4%, and the prominence ratios at 4KHz and 8KHz were lower. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T04:16:20Z (GMT). No. of bitstreams: 1 ntu-99-J95921056-1.pdf: 4018032 bytes, checksum: a9eddce72641fd31a929bbef9083f4e7 (MD5) Previous issue date: 2010 | en |
| dc.description.tableofcontents | 口試委員會審定書 i
誌謝 ii 中文摘要 iii Abstract iv 目錄 v 圖目錄 vii 表目錄 xi 第一章 緒論 1 1.1 前言 1 1.2 研究動機 1 1.3 文獻探討 3 1.4 章節概述 4 第二章 電腦系統之噪音 5 2.1 聲音、樂音與噪音 5 2.2 散熱模組之噪音 11 2.3 硬碟機之噪音 14 2.3.1 滾珠軸承馬達 14 2.3.2 液態軸承馬達 15 2.4 光碟機之噪音 16 2.5 電子元件之噪音 17 第三章 各式電容器與積層式陶瓷電容 21 3.1 電容器 21 3.2 電容器的分類 22 3.2.1 鋁質電容器 23 3.2.2 鉭質電容器 24 3.2.3 塑料薄膜電容器 24 3.2.4 陶瓷電容器 25 3.3 積層陶瓷電容器 27 3.3.1 積層陶瓷電容器的結構 27 3.3.2 積層陶瓷電容器的等效電路模型 29 3.3.3 積層陶瓷電容器的分類 33 3.3.4 物理特性與操作環境之影響 35 第四章 壓電效應與其引起之顫噪現象 41 4.1 壓電材料與壓電效應 41 4.1.1 晶體結構與分類 41 4.1.2 壓電材料晶體結構 42 4.1.3 介電特性與極化 43 4.2 積層陶瓷電容器之壓電效應 44 4.2.1 正壓電效應 45 4.2.2 逆壓電效應 46 4.2.3 磁滯曲線 46 4.3 實驗方法 47 4.3.1 高頻異音之肇因 47 4.3.2 實驗方法 49 4.3.3 實驗量測環境 50 4.4 實驗結果與比較 53 第五章 結論與未來展望 66 5.1 結論 66 5.2 未來展望 67 參考文獻 68 | |
| dc.language.iso | zh-TW | |
| dc.subject | 電腦系統噪音 | zh_TW |
| dc.subject | 積層陶瓷電容器 | zh_TW |
| dc.subject | 筆記型電腦 | zh_TW |
| dc.subject | 高頻顫噪 | zh_TW |
| dc.subject | 壓電效應 | zh_TW |
| dc.subject | the computer system noise | en |
| dc.subject | laptop computer | en |
| dc.subject | high-pitched microphonics | en |
| dc.subject | piezoelectric effect | en |
| dc.subject | multilayer ceramic capacitor (MLCC) | en |
| dc.title | 由主機板上受壓電效應影響之積層陶瓷電容所造成的高頻異音實驗探討 | zh_TW |
| dc.title | An Experimental Study for Acoustic High Pitched Noise Caused by MLCC on The Motherboard Due to Piezoelectric Effect | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 98-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 張宏鈞(Hung-Chun Chang),林浩雄(Hao-Hsiung Lin),吳宗霖(Tzong-Lin Wu) | |
| dc.subject.keyword | 筆記型電腦,積層陶瓷電容器,壓電效應,電腦系統噪音,高頻顫噪, | zh_TW |
| dc.subject.keyword | laptop computer,multilayer ceramic capacitor (MLCC),piezoelectric effect,the computer system noise,high-pitched microphonics, | en |
| dc.relation.page | 71 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2010-08-03 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電機工程學研究所 | zh_TW |
| 顯示於系所單位： | 電機工程學系 | |
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