金鍵合線 的英文怎麼說
中文拼音 [jīnjiàngěxiàn]
金鍵合線
英文
gold bonding wire-
A reliability experiment of thermal aging was carried out for the two types of joints, scanning electron microscopy, energy dispersive x - ray spectrometer and micro x - ray diffractomer were adopted to investigate the interfacial evolution behavior of joints, and kinetics model of imc formation was established. the results show that imc growth follows the parabolic law as a function of aging time at certain aging temperature, imc growth is more sensitive to the aging temperature than the aging time, the activation energy of cu - al imc growth is 97. 1kj / mol and the major forming cu - al imc are cual2 and cu9al4, the activation energy of au - al imc growth is 40. 1kj / mol and the main au - al imc are au4al and au5al2, with au2al and aual at the interfacial periphery of joints, the rate of cu - al imc growth is about 1000 times slower than that of au - al imc, and kirkendall voids and cracks are easily appeared during thermal aging in gold ball bonds while voids and cracks are absent in copper ball bonds even after aging at 200 for 2900 hours and 250 for 169 hours
研究結果表明:金屬間化合物厚度與老化時間的關系符合拋物線法則，金屬間化合物的生長對老化溫度比老化時間更加敏感; cu - al金屬間化合物生長的激活能為97 . 1kj / mol ，老化后金屬間化合物呈層狀分佈，主要相為cual2和cu9al4 ; au - al金屬間化合物生長的激活能為40 . 1kj / mol ，主要相為au4al和au5al2 ，同時在界面周邊區域生成了au2al和aual ;老化過程中cu - al金屬間化合物生長速率比au - al金屬間化合物生長速率小103數量級;金絲球鍵合點200老化96小時出現了明顯的kirkendall空洞和裂紋，但銅絲球鍵合點200老化2900小時和250老化169小時都沒有形成空洞和裂紋。Special for cob bonding wire al si fine wire fine gold lead bonding wire and electronics manufacturing service, have been evaluated vendor for motorola. imported equipment and material from usa, uk, germany and japan. advanced process under clean room environment
主要開發和生產cob邦定鋁線led鍵合金線高純鋁線fine bonding wire ，同時提供電子產品委託生產服務ems ，是motorola公司的正式供貨商。Ratio control of cvt is the key for engine running according to ideal curve, and controlling thrust of driving and driven pulley reasonably can improve efficiency and extend life - span of metal belt, and it is coupling relation between control of ratio and thrust
無級變速傳動系統的速比控制是實現發動機按理想工作線運行的關鍵，合理控制主、從動帶輪的夾緊力能提高傳動效率和金屬帶的壽命，而夾緊力和速比控制存在耦合效應。Our products include, ball screw assembly, linear ball rail system, miniature ball rail system, x - y tables, ball spindles, slide spindle and slide guide
主要產品有：滾珠絲杠副、直線滾動導軌副、微型滾珠線性滑軌、精密十字工作臺、滾動花鍵副、硬質鍍鉻導桿、直線軸承、鋁基合金滾動導軌等。Finite element method ( fem ) was used to simulate thermal and vibration problems in stacked - die csp assembly. finite element models and apdl programes were built in ansys to conduct thermal, thermal - mechanical and vibration analysis. the aim of these researches were trying to find some possible reasons and trends which affect the reliability of stacked csp / bga assembly and give some useful suggestions for the packaging design
本論文正是針對以上情況，以採用引線鍵合工藝的三維疊層csp / bga封裝（裸晶元疊裝）為研究對象，在有限元分析軟體ansys中建立相關的有限元模型，編制了相應的apdl參數化分析程序，進行了溫度場分析、熱循環加載下的snpb合金焊點疲勞分析和實裝pcb板的振動模態分析。Synthesis of dithiotricyanic acid immobilized silica gel and its application to the faas determination of gold after on - line preconcentration and separation
二巰基取代三聚氰酸鍵合硅膠的合成及其在金的在線預濃集分離火焰原子吸收光譜分析中的應用In the five key factors of solder ball alloy, solder paste alloy, peak temperature, the time above liquidus and soldering environment, the fore four factors are more important than soldering environment to the solder joints reliability
在焊球合金、焊料合金、峰值溫度、液相線以上時間和焊接環境五個關鍵因素中，前四項對焊點可靠性比較重要，焊接環境對焊點可靠性的影響不很顯著。A n lh control system structure, based on high speed ethernet, field bus, programmable logic controllers and general purpose pcs, is proposed. after analyses of the key control elements - temperature and composition, the thesis gives detailed design of the main system control functionalities : electrode control system, alloy material adding control system and operation monitoring system
在此基礎上，提出了基於工業高速以太網、現場總線、可編程邏輯控制器、通用工業pc的系統結構方案。分析了lf爐的關鍵要素? ?溫度控制和成份調節，對電極控制系統、合金加料系統及操作監控系統等主要控制系統功能進行了詳細設計。In the present research, scanning electron microscope ( sem ), laser raman spectroscopy ( lrs ), x - ray photoelectron spectroscopy ( xrs ), x - ray diffraction ( xrd ) and electron probe micro analysis ( epma ) were utilized to investigate the difference in micro - structure and elements distribution between domestic and foreign pdcs. combined with analysis on current manufacturing process, the mechanism for the difference was discussed. scanning electron microscope ( sem ), laser granularity analysis, atom emission spectroscopy ( aes ) and plasma emission spectroscopy ( icpaes ) are also utilized to investigate the grain shape and impurities of key material - diamond power
本課題採用掃描電鏡、拉曼光譜、光電子能譜、 x -射線衍射分析、電子探針等方法分析了國內外聚晶金剛石-硬質合金復合片在微觀組織結構、元素成分分佈方面的差異，結合對現有燒結工藝的分析，研討了造成這些差異的機理；採用掃描電子顯微鏡、激光粒度分析、原子發射光譜、等離子發射光譜等方法對關鍵原材料-金剛石微粉的晶形、雜質含量進行了比較分析測試。As a part of the project of national “ 863 ” project “ the key technology of medical tele - robot and system development ” and national natural science foundation of china “ modeling and control scheme research of robot assisted orthopedic system ”, this paper intends to analyze the biomechanical characteristics of human leg in orthopedic surgery through developing a numeric human leg model, which provides a key means for surgical training and surgical rehearse. and this model can be used to improve operator ’ s learning curve and success ratio of the surgery
課題結合國家863計劃項目「遠程醫療機器人關鍵技術與系統研發」和國家自然科學基金項目「機器人輔助骨外科系統建模與控制方法研究」 ，通過建立人體腿部的數字化模型來分析研究矯形外科手術中人體腿部的生物力學特性，從而為外科手術培訓和手術預演的研究提供重要手段，以改進操作者的學習曲線，提高手術的成功率。The motorazr v3 is expertly crafted to deliver exceptional performance. inside the stunning, ultra - thin design are advanced features like mpeg4 video playback, bluetooth wireless technology, a digital camera and more. and with the precision - cut keypad, minimalist styling and metal finish, the v3 has its own unmistakable look
令人贊嘆的超薄設計，配合mpeg4影片播放藍芽無線技術數碼相機等多項超凡科技，盡集中於超薄機身之內，雷射鍵盤精心雕琢，簡約風格躍現，配合金屬質感，毫無瑕?的完美型格，盡在v3 。分享友人