【正文】 t. Baumgartner still will free fall at a speed that would cause you and me to pass out, and no parachute is guaranteed to work higher than 25,000 feet (7,620 meters). cause there 。ll be traveling fast, so despite the distance, it will not be like diving into the deep end of a pool. It will be like he is diving into the shallow end. Skydiver preps for the big jump When he jumps, he is expected to reach the speed of sound 690 mph (1,110 kph) in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approaches the more dense air closer to Earth. But this will not be enough to stop him pletely. If he goes too fast or spins out of control, he has a stabilization parachute that can be deployed to slow him down. His team hopes it39。突然想到那件藍(lán)格子襯衫；那些被折成各種各樣形狀的信紙；那段從街角深巷伊始的友誼；還有那場(chǎng)還沒(méi)有開始就宣告了終結(jié)的邂逅計(jì)劃 …… 那些年那些天的非做不可，終于和青春一樣，都將 在我們的人生中謝幕。 Have declared the end of the encounter that haven39。 Those were broken into various shapes of stationery。那些曾經(jīng)所謂的非做不可，只是青 蔥年華里自己給自己注射的一支強(qiáng)心劑，或者說(shuō)，是自以為是的精神寄托罷了。也曾經(jīng)好像已經(jīng)下定了決心去做某件事，但更多的時(shí)候是最后又打起了退堂鼓。s time, your ideas are always special to clear. Want, want, line is clear, as if nothing could shake his. Also once seemed to be determined to do something, but more often is he backed out at last. Dislike his cowardice, finally found that there are a lot of love, there are a lot of miss, like shadow really have been doomed. Those who do, just green years oneself give oneself an arm injection, or is a selfrighteous spiritual. 一個(gè)人的時(shí)候，自己的想法總是特別地清晰。 Originally, this world, can produce a chemical reaction to an event, in addition to resolutely, have to do, and time. 原來(lái)，這個(gè)世界上，對(duì)某個(gè)事件能產(chǎn)生化學(xué)反應(yīng)的，除了非做不可的堅(jiān)決，還有，時(shí)間。t want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has already can39。t really grow up, it seems is not so important。 The end of our life, and can meet many things really do? 而窮盡我們的一生，又能遇到多少事情是真正地非做不可？ During my childhood, think lucky money and new clothes are necessary for New Year, but as the advance of the age, will be more and more found that those things are optional?？傆X(jué)得自己自己似乎應(yīng)該去做點(diǎn)什么，或者寫點(diǎn)什么。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it. 一字開頭的年齡已經(jīng)到了尾聲。s actions. CSKA said they were surprised and disappointed by Toure39。s 21 win. Michel Platini, president of European football39。s Premier League match at Chelsea on Sunday. I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport. For me it39。s antiracism taskforce, is in London for the Football Association39。t charge you more than 35% of your pensation if you win the case. If you are thinking about signing up for a damagesbased agreement, you should make sure you39。t agree with the disciplinary action your employer has taken against you ? your employer dismisses you and you think that you have been dismissed unfairly. For more information about dismissal and unfair dismissal, see Dismissal. 28 You can make a claim to an employment tribunal, even if you haven39。 D:[潛伏性 ESD問(wèn)題 ]:不只是影響成品用家也會(huì)影響各層制造商的維修費(fèi)及聲譽(yù) 。 B:[潛伏性 ESD問(wèn)題 ]:在任何場(chǎng)合都會(huì)發(fā)生 。 七、 D 等級(jí)分類及控制程序 : 1. ESD等級(jí)分類 : 等級(jí) 電壓范圍 典型設(shè)備 0 0100V EPPOM VMOS MOSFET, 1 1001000V 薄膜電阻 .二極管 2 10004000V , AND LSI 3 400015000V 大多數(shù)其它半導(dǎo)體 2. ESD失效的潛伏性 :有時(shí) ESD 并沒(méi)有把半導(dǎo)體完全破壞，而只把組件某部份的品質(zhì)降低。 2. 微電子器件帶電形式 :在自動(dòng)化生產(chǎn)過(guò)程中，一些塑料器件因摩擦產(chǎn)生靜電，通過(guò) ESD 敏感裝置接觸，造成損壞。場(chǎng)感應(yīng)形式 。 五、半導(dǎo)體的靜電敏感度 : 裝置型式 靜電放電敏感度范圍 V 裝置型式 靜電放電敏感度范圍 V VMOS 301800V 散粒 (肖特 基 )二極管 3002500 MOSFET 100200V 薄片電阻 (原細(xì) ) 3003000 GASFET 100300V 雙向晶體管 3807000 EPPROM 100V ECL(發(fā)射極耦合邏輯電路 ) 5001500 JFET 1407000V SCR(可控硅 ) 6801000 SAM 1501500V 散粒 (肖特基 )晶體管 10002500 OPAMP 1902500V 晶體管邏輯電路 10002500 26 CMOS 2503000V 六、靜電放電的三種形 式 :人體形式 。 :氧化層的破壞 。 2. ESD失效 (ESD:中文總量 :靜電電壓放電 )靜電放電時(shí)，當(dāng)放電電流過(guò)大，產(chǎn)生過(guò)度熱能，將會(huì)擊穿集成電路內(nèi)部線路。 四 、 電荷對(duì)微電子工業(yè)的影響 : 1. 微粒 污染 :在潔凈室里是使直徑在 ~ 微米之間的顆粒沉積的主要原因。 。 三、 電電荷產(chǎn)生的種類 : 1. 摩擦 。 25 。靜電電壓高達(dá)3000V左右。 2。 十一 .焊接技術(shù) ： ,構(gòu)成一定的電路 ,電子領(lǐng)域中焊接技術(shù)通常分為回流焊 ,波峰焊及電焊臺(tái)物工焊接等 . :又稱 IP焊接 ,它是利用紅外線熱傳導(dǎo)原理 .讓焊錫達(dá)到溶點(diǎn) (210攝氏度 )以上熔化 ,從而達(dá)到焊接目的 ,這種方法適用于 SMD 無(wú)件焊接 . :這種焊接方法是 ,預(yù)先讓容器 (錫槽 )是的焊錫加熱熔化 ,并借助外力使熔錫按一定的要求循環(huán)流動(dòng) ,進(jìn)而產(chǎn)生一個(gè)波峰 .當(dāng)要焊接的部件以一定的速度通過(guò)波峰時(shí) ,熔錫會(huì)自動(dòng)附著在焊接部位 ,達(dá)到了 自動(dòng)焊接的目的 ,這種焊接適用于 DIP規(guī)格無(wú)件的焊接 . :利用電焊臺(tái)或電烙鐵進(jìn)行手工焊接時(shí) ,要注意以下幾個(gè)方面的問(wèn)題 : 1)要求不高的情況下 ,使用 3550普照通電烙鐵即可 ,在要求較高時(shí) ,要使用 6080自動(dòng)調(diào)溫電焊臺(tái) . 2)無(wú)論普照通電烙鐵還是電焊臺(tái) ,其焊頭一定要可靠接地 ,以防腐靜電損壞器件 . 3)溫度調(diào)節(jié) (針對(duì)電焊臺(tái) )通常調(diào)整為 (320350) 4)焊接技巧 : ,分酸性助焊 (接后必須及時(shí)清洗 )與免洗助焊濟(jì) (可不清洗 )兩種 . .即先將要焊接部位涂上錫 ,再 對(duì)接焊接 . ,有些元件或器件因長(zhǎng)期暴露于空氣中或保存不當(dāng) ,表面上有一層不易上錫氧化膜 ,這時(shí)可先用刀片 ,砂紙將其表面氧化膜除去再進(jìn)焊接 . 5)焊接時(shí) ,焊點(diǎn)大小適中 ,光亮 ,飽滿 ,圓滑 ,不得空焊 ,假焊 ,虛焊 , 不得產(chǎn)生錫尖 ,錫渣 ,錫珠 . 6)焊接完畢后 ,要將多的元件引腳 ,線頭剪去 ,注意剪腳不能太或短 ,不得造成錫裂 . 7)焊接完畢后 ,應(yīng)接品質(zhì)要求 ,及時(shí)清洗劫助焊濟(jì) ,使板面或元件保護(hù)清潔 . 第二節(jié)：靜電防護(hù)知識(shí) 一 .靜電防護(hù)常識(shí) 1。 10 177。 5 240177。 5 260177。 10 177。 5 235177。 5 250177。 10 177。 5 245177。 5 260177。 10 177。 5 235177。 5 250177。 5 177。 5 240177。 5 260177。 10 177。 5 250177。 5 27