热播电影-高清电影大全-免费电影在线观看 - 星星影视
信息显示，本次昆山农商行被给予行政监管措施，涉及四个方面的违规行为。制度建设及执行方面，未按照审慎经营的原则，建立健全并有效执行基金销售业务的内部控制和风险管理制度，完善内部责任追究机制，确保基金销售业务符合法律法规和中国证监会的规定。
2025年01月01日，全军各部队开展形式多样的主题教育活动，纪念全民族抗战爆发87周年。官兵们来到驻地烈士陵园，整齐列队缅怀革命先烈；走进党史军史长廊聆听战斗故事、重温入党誓词，激励广大官兵铭记历史、牢记使命，聚力强军兴军。（央视）
热播电影-高清电影大全-免费电影在线观看 - 星星影视
晚上6点左右身穿山东高速男篮队服的邱彪出现在媒体和球迷面前山东高速篮球俱乐部领导热情地上前与他握手、打招呼并给他献上了鲜花随后邱彪在现场接受了媒体的集体采访谈到自己的执教理念邱彪表示自己比较倡导也会跟队员说得最多的一句话就是做自己永远不要去想做下一个谁其次就是脚踏实地一步一步地去把篮球打好然后去享受篮球去赢得更多的比赛回馈球迷谈到接下来的夏训计划邱彪说我也是第一次执教咱们山东男篮之前都是作为对手去了解（山东男篮）可能现在首当其冲的是一个相互了解的过程尽快去熟悉我们彼此熟悉第二步的话可能会跟俱乐部会有一些沟通希望在这个夏天多打一些比赛给年轻球员或者替补球员多一些打球的机会然后去发现一些问题尽可能地一点点去解决为新的赛季做好准备
这些成分显示了抑制炎症因子和调节免疫细胞活性的潜力，这对于肝炎患者来说是一个好消息。它暗示了冬瓜除了直接的营养效果外，可能还能在调节体内炎症反应中发挥作用。在消息面的催化下，石油石化板块成为早盘市场主线。沙特阿美全资子公司础翱颁拟溢价近九成入股荣盛石化，带动后者股价无悬念“一字涨停”，开盘集合竞价涨停封单超过520万手，并带动其他石化股表现活跃。
nengzhangwozhuzhexie，PCBshejijiuchenggongliaoyiban2019-04-13 02:01·dianzigongchengshibijishuodaoPCB，henduopengyouhuixiangdaotazaiwomenzhouweisuichukejian，congyiqiedejiayongdianqi，diannaoneidegezhongpeijian，daogezhongshumachanpin，zhiyaoshidianzichanpinjihuduhuiyongdaoPCB，namedaodishimeshiPCBne?PCBjiushiPrintedCircuitBlock,jiyinzhidianluban，gongdianzizujianancha,youxianludejiban。tongguoshiyongyinshuafangshijiangdutongdejibanyinshangfangshixianlu,bingjiayishikechongxichuxianlu。PCBkeyifenweidancengban、shuangcengbanheduocengban。gezhongdianziyuanjiandushibeijichengzaiPCBshangde，zaizuijibendedancengPCBshang，lingjiandujizhongzaiyimian，daoxianzedujizhongzailingyimian。zhemeyilaiwomenjiuxuyaozaibanzishangdadong，zheyangjiejiaocainengchuanguobanzidaolingyimian，suoyilingjiandejiejiaoshihanzailingyimianshangde。yinweiruci，zheyangdePCBdezhengfanmianfenbiebeichengweilingjianmian(ComponentSide)yuhanjiemian(SolderSide)。shuangcengbankeyikanzuobalianggedancengbanxiangduizhanhezaiyiqizucheng，bandeliangmianduyoudianziyuanjianhezouxian。youshihouxuyaobayimiandedanxianlianjiedaobandelingyimian，zhejiuyaotongguodaokong(via)。daokongshizaiPCBshang，chongmanhuotushangjinshudexiaodong，takeyiyuliangmiandedaoxianxianglianjie。xianzaihenduodiannaozhubanduzaiyong4cengshenzhi6cengPCB，erxiankayibanduzaiyongliao6cengPCB，henduogaoduanxiankaxiangnVIDIAGeForce4Tixiliejiucaiyongliao8cengPCB，zhejiushisuoweideduocengPCB。zaiduocengPCBshangyehuiyudaolianjiegegecengzhijianxianludewenti，yekeyitongguodaokonglaishixian。youyushiduocengPCB，suoyiyoushihoudaokongbuxuyaochuantouzhenggePCB，zheyangdedaokongjiaozuomaikong(Buriedvias)hemangkong(Blindvias)，yinweitamenzhichuantouqizhongjiceng。mangkongshijiangjicengneibuPCByubiaomianPCBlianjie，buxuchuantouzhenggebanzi。maikongzezhilianjieneibudePCB，suoyiguangshicongbiaomianshikanbuchulaide。zaiduocengbanPCBzhong，zhengcengduzhijielianjieshangdixianyudianyuan。suoyiwomenjianggecengfenleiweixinhaoceng(Signal)，dianyuanceng(Power)huoshidixianceng(Ground)。ruguoPCBshangdelingjianxuyaobutongdedianyuangongying，tongchangzheleiPCBhuiyouliangcengyishangdedianyuanyudianxianceng。caiyongdePCBcengshuyueduo，chengbenyejiuyuegao。dangran，caiyonggengduocengdePCBduitigongxinhaodewendingxinghenyoubangzhu。zhuanyedePCBzhizuoguochengxiangdangfuza，na4cengPCBweili。zhubandePCBdadushi4cengde。zhizaodeshihoushixianjiangzhongjianliangcenggezinianya、caijian、shike、yanghuadianduhou，zhe4cengfenbieshiyuanqijianmian、dianyuanceng、dicenghehanxiyaceng。zaijiangzhe4cengfangzaiyiqinianyachengyikuaizhubandePCB。jiezhuodakong、zuoguokong。xijingzhihou，jiangwaimianliangcengdexianluyinshang、futong、shike、ceshi、zuhanceng、siyin。zuihoujiangzhengbanPCB(hanxuduokuaizhuban)chongyachengyikuaikuaizhubandePCB，zaitongguoceshihoujinxingzhenkongbaozhuang。ruguoPCBzhizuoguochengzhongtongpifuzhuodebuhao，huiyouzhantiebulaoxianxiang，rongyiyinhanduanluhuodianrongxiaoying(rongyichanshengganrao)。PCBshangdeguokongyeshibixuzhuyide。ruguokongdadebushizaizhengzhongjian，ershipianxiangyibian，jiuhuichanshengbujunyunpipei，huozherongyiyuzhongjiandedianyuancenghuodicengjiechu，congerchanshengqianzaiduanluhuojiedibuliangyinsu。tongxianbuxianguochengzhizuodediyibushijianlichulingjianjianlianjidebuxian。womencaiyongfupianzhuanyinfangshijianggongzuodipianbiaoxianzaijinshudaotishang。zhexiangjiqiaoshijiangzhenggebiaomianpushangyicengbaobaodetongbo，bingqiebaduoyudebufengeixiaochu。zhuijiashizhuanyinshilingyizhongbijiaoshaorenshiyongdefangshi，zheshizhizaixuyaodedifangfushangtongxiandefangfa，buguowomenzaizhelijiubuduotanliao。zhengguangzujishiyouganguangjizhichengde，tazaizhaomingxiahuirongjie。youhenduofangshikeyichulitongbiaomiandeguangzuji，buguozuipubiandefangshi，shijiangtajiare，bingzaihanyouguangzujidebiaomianshanggundong。tayekeyiyongyetaidefangshipenzaishangtou，buguoganmoshitigongbijiaogaodefenbianlv，yekeyizhizuochubijiaoxidedaoxian。zheguangzhaozhishiyigezhizaozhongPCBcengdemoban。zaiPCBshangdeguangzujijingguoUVguangpuguangzhiqian，fugaizaishangmiandezheguangzhaokeyifangzhibufenquyudeguangzujibubeipuguang。zhexiebeiguangzujigaizhudedifang，jianghuibianchengbuxian。zaiguangzujixianyingzhihou，yaoshikedeqitadeluotongbufen。shikeguochengkeyijiangbanzijindaoshikerongjizhong，huoshijiangrongjipenzaibanzishang。yibanyongzuoshikerongjishiyongsanlvhuatiedeng。shikejieshuhoujiangshengxiadeguangzujiquchudiao。1.buxiankuanduhedianliuyibankuandubuyixiaoyu0.2mm(8mil)zaigaomidugaojingdudePCBshang，jianjuhexiankuanyiban0.3mm(12mil)。dangtongbodehouduzai50umzuoyoushi，daoxiankuandu1～1.5mm (60mil) = 2Agonggongdiyiban80mil,duiyuyouweichuliqideyingyonggengyaozhuyi。2.daodiduogaodepinlvcaisuangaosuban?dangxinhaodeshangsheng/xiajiangyanshijian< 3~6beixinhaochuanshushijianshi,jirenweishigaosuxinhao.duiyushuzidianlu，guanjianshikanxinhaodebianyandouqiaochengdu，jixinhaodeshangsheng、xiajiangshijian，anzhaoyibenfeichangjingdiandeshu《High Speed Digtal Design>delilun,xinhaocong10%shangshengdao90%deshijianxiaoyu6beidaoxianyanshi,jiushigaosuxinhao!------ji!jishi8KHzdefangboxinhao,zhiyaobianyanzugoudouqiao,yiyangshigaosuxinhao,zaibuxianshixuyaoshiyongchuanshuxianlulun3.PCBdeduidieyufencengduocengyinzhibanweiliaoyougenghaodediancijianrongxingsheji，shideyinzhibanzaizhengchanggongzuoshinengmanzudiancijianronghemingandubiaozhun。zhengquededuidieyouzhuyupingbiheyizhiEMI，duocengyinzhibanfencengjiduidiezhongyibanzunxunyixiajibenyuanze：①dianyuanpingmianyingjinliangkaojinjiedipingmian，bingyingzaijiedipingmianzhixia。②buxiancengyinganpaiyuyingxiangpingmiancengxianglin。③dianyuanyudicengzukangzuidi。④zaizhongjiancengxingchengdaizhuangxian，biaomianxingchengweidaixian。liangzhetexingbutong。⑤zhongyaoxinhaoxianyingjinlindiceng。duocengbanxiangduiyuputongshuangcengbanhedancengbandeyigefeichangzhongyaodeyoushijiushixinhaoxianhedianyuankeyifenbuzaibutongdebancengshang, tigaoxinhaodegelichengduhekangganraoxingneng。raner,bushaogongchengshiduiyuPCBdefencengheduidierenggandaotoutong,yichangyongde4cengbanweili。sicengbanyouyixiajizhongdiecengshunxu。xiamianfenbiebagezhongbutongdediecengyouliezuoshuoming：zhu：S1 xinhaobuxianyiceng，S2 xinhaobuxianerceng;GND diceng POWER dianyuancengdiyizhongqingkuang，yingdangshisicengbanzhongzuihaodeyizhongqingkuang。yinweiwaicengshidiceng，duiEMIyoupingbizuoyong，tongshidianyuancengtongdicengyekekaodehenjin，shidedianyuanneizujiaoxiao，qudezuijiajiaoguo。dandiyizhongqingkuangbunengyongyudangbenbanmidubijiaodadeqingkuang。yinweizheyangyilai，jiubunengbaozhengdiyicengdidewanzhengxing，zheyangdiercengxinhaohuibiandegengcha。lingwai，cizhongjiegouyebunengyongyuquanbangonghaobijiaodadeqingkuang。dierzhongqingkuang，shiwomenpingshizuichangyongdeyizhongfangshi。congbandejiegoushang，yebushiyongyugaosushuzidianlusheji。yinweizaizhezhongjiegouzhong，buyibaochididianyuanzukang。yiyigeban2haomiweili：yaoqiuZ0=50ohm. yixiankuanwei8mil.tongbohouwei35цm。zheyangxinhaoyicengyudicengzhongjianshi0.14mm。erdicengyudianyuancengwei1.58mm。zheyangjiudadadezengjialiaodianyuandeneizu。zaicizhongjiegouzhong,youyufusheshixiangkongjiande，xujiapingbiban，cainengjianshaoEMI。disanzhongqingkuang，S1cengshangxinhaoxianzhiliangzuihao。S2cizhi。duiEMIyoupingbizuoyong。dandianyuanzukangjiaoda。cibannengyongyuquanbangonghaodaergaibanshiganraoyuanhuozheshuojinlinzhuoganraoyuandeqingkuangxia。4.zukangpipeifanshedianyaxinhaodefuzhiyouyuanduanfanshexishuρshefuzaifanshexishuρL juedingρL = (RL - Z0) / (RL + Z0) he ρS = (RS - Z0) / (RS + Z0)zaishangshizhong，ruoRL=Z0zefuzaifanshexishuρL=0。ruo RS=Z0yuanduanfanshexishuρS=0。youyuputongdechuanshuxianzukangZ0tongchangyingmanzu50Ωdeyaoqiu50Ωzuoyou，erfuzaizukangtongchangzaijiqianoumudaojishiqianoumu。yinci，zaifuzaiduanshixianzukangpipeibijiaokunnan。raner，youyuxinhaoyuanduan(shuchu)zukangtongchangbijiaoxiao，dazhiweishijioumu。yincizaiyuanduanshixianzukangpipeiyaorongyideduo。ruguozaifuzaiduanbingjiedianzu，dianzuhuixishoubufenxinhaoduichuanshubuli(wodelijie).dangxuanzeTTL/CMOSbiaozhun 24mAqudongdianliushi，qishuchuzukangdazhiwei13Ω。ruochuanshuxianzukangZ0=50Ω，nameyinggaijiayige33Ωdeyuanduanpipeidianzu。13Ω+33Ω=46Ω (jinsiyu50Ω，ruodeqianzuniyouzhuyuxinhaodesetupshijian)dangxuanzeqitachuanshubiaozhunhequdongdianliushi，pipeizukanghuiyouchayi。zaigaosudeluojihedianlushejishi，duiyixieguanjiandexinhao，rushizhong、kongzhixinhaodeng，womenjianyiyidingyaojiayuanduanpipeidianzu。zheyangjieliaoxinhaohuanhuicongfuzaiduanfanshehuilai，yinweiyuanduanzukangpipei，fanshehuilaidexinhaobuhuizaifanshehuiqu。5.dianyuanxianhedixianbujuzhuyishixiangdianyuanxianjinliangduan，zouzhixian，erqiezuihaozoushuxing、buyaozouhuanxingdixianhuanluwenti：duiyushuzidianlulaishuo，dixianhuanluzaochengdedixianhuanliuyejiushijishihaofujibiede，erTTLdekangganraomenxianshi1.2V，CMOSdianlugengkeyidadao1/2dianyuandianya，yejiushishuodixianhuanliugenbenjiubuhuiduidianludegongzuozaochengbuliangyingxiang。xiangfan，ruguodixianbubihe，wentihuigengda，yinweishuzidianluzaigongzuodeshihouchanshengdemaichongdianyuandianliuhuizaochenggediandedidianweibupingheng，birubenrenshice74LS161zaifanzhuanshidixiandianliu1.2A(yong2Gspsshiboqicechu，didianliumaichongkuandu7ns)。zaidamaichongdianliudechongjixia，ruguocaiyongzhizhuangdixian(xiankuan25mil)fenbu，dixianjiangegediandedianweichajianghuidadaobaihaofujibie。ercaiyongdixianhuanluzhihou，maichongdianliuhuisanbudaodixiandegegedianqu，dadajiangdiliaoganraodianludekeneng。caiyongbihedixian，shicechugeqijiandedixianzuidashunshidianweichashibubihedixiandeerfenzhiyidaowufenzhiyi。dangranbutongmidubutongsududedianlubanshiceshujuchayihenda，woshangmiansuoshuo，zhideshidayuexiangdangyuProtel 99SEsuofudaideZ80 Demobandeshuiping;duiyudipinmonidianlu，worenweidixianbihehoudegongpinganraoshicongkongjianganyingdaode，zheshiwulunruheyefangzhenhejisuanbuchulaide。ruguodixianbubihe，buhuichanshengdixianwoliu，beckhamtaosuowei“dandixiankaihuanzhegegongpinganyingdianyahuigengda。”delilunyijuhezai?julianggeshili，7nianqianwojieshoubierendeyigexiangmu，jingmiyaliji，yongdeshi14weiA/Dzhuanhuanqi，danshicezhiyou11weiyouxiaojingdu，jingcha，dixianshangyou15mVp-pdegongpinganrao，jiejuefangfajiushibaPCBdemonidihuanluhuakai，qianduanchuanganqidaoA/Ddedixianyongfeixianzuozhizhuangfenbu，houlailiangchandexinghaoPCBzhongxinanzhaofeixiandezouxianshengchan，zhijinweichuxianwenti。diergelizi，yigepengyoureaifashao，zijiDIYliaoyitaigongfang，danshuchushizhongyoujiaoliusheng，wojianyiqijiangdixianhuanluqiekai，wentijiejue。shihouciweilaoxiongchayueshushizhong“Hi-Fimingji”PCBtu，zhengshiwuyizhongjiqizaimonibufencaiyongdixianhuanlu。6.yinzhidianlubanshejiyuanzehekangganraocuoshiyinzhidianluban(PCB)shidianzichanpinzhongdianluyuanjianheqijiandezhichengjian.tatigongdianluyuanjianheqijianzhijiandedianqilianjie。suizhuodianyujishudefeisufazhan，PGBdemiduyuelaiyuegao。PCBshejidehaohuaiduikangganraonengliyingxianghenda.yinci，zaijinxingPCBshejishi.bixuzunshouPCBshejideyibanyuanze，bingyingfuhekangganraoshejideyaoqiu。PCBshejideyibanyuanzeyaoshidianzidianluhuodezuijiaxingneng，yuanqijiandebuqiejidaoxiandebusheshihenzhongyaode。weiliaoshejizhilianghao、zaojiadidePCB.yingzunxunyixiayibanyuanze：bujushouxian，yaokaolvPCBchicundaxiao。PCBchicunguodashi，yinzhixiantiaochang，zukangzengjia，kangzaoshengnenglixiajiang，chengbenyezengjia;guoxiao，zesanrebuhao，qielinjinxiantiaoyishouganrao。zaiquedingPCBchicunhou.zaiquedingteshuyuanjiandeweizhi。zuihou，genjudianludegongnengdanyuan，duidianludequanbuyuanqijianjinxingbuju。zaiquedingteshuyuanjiandeweizhishiyaozunshouyixiayuanze：(1)jinkenengsuoduangaopinyuanqijianzhijiandelianxian，shefajianshaotamendefenbucanshuhexianghujiandedianciganrao。yishouganraodeyuanqijianbunengxianghuaidetaijin，shuruheshuchuyuanjianyingjinliangyuanli。(2)mouxieyuanqijianhuodaoxianzhijiankenengyoujiaogaodedianweicha，yingjiadatamenzhijiandejuli，yimianfangdianyinchuyiwaiduanlu。daigaodianyadeyuanqijianyingjinliangbuzhizaidiaoshishishoubuyichujidedifang。(3)zhongliangchaoguo15gdeyuanqijian、yingdangyongzhijiajiayiguding，ranhouhanjie。naxieyoudayouzhong、fareliangduodeyuanqijian，buyizhuangzaiyinzhibanshang，eryingzhuangzaizhengjidejixiangdibanshang，qieyingkaolvsanrewenti。reminyuanjianyingyuanlifareyuanjian。(4)duiyudianweiqi、kediaodianganxianquan、kebiandianrongqi、weidongkaiguandengkediaoyuanjiandebujuyingkaolvzhengjidejiegouyaoqiu。ruoshijineidiaojie，yingfangzaiyinzhibanshangfangbianyudiaojiededifang;ruoshijiwaidiaojie，qiweizhiyaoyudiaojiexuanniuzaijixiangmianbanshangdeweizhixiangshiying。(5)yingliuchuyinzhibandingweikongjigudingzhijiasuozhanyongdeweizhi。genjudianludegongnengdanyuan.duidianludequanbuyuanqijianjinxingbujushi，yaofuheyixiayuanze：(1)anzhaodianludeliuchenganpaigegegongnengdianludanyuandeweizhi，shibujubianyuxinhaoliutong，bingshixinhaojinkenengbaochiyizhidefangxiang。(2)yimeigegongnengdianludehexinyuanjianweizhongxin，weiraotalaijinxingbuju。yuanqijianyingjunyun、 zhengqi、jincoudipailiezaiPCBshang.jinliangjianshaohesuoduangeyuanqijianzhijiandeyinxianhelianjie。(3)zaigaopinxiagongzuodedianlu，yaokaolvyuanqijianzhijiandefenbucanshu。yibandianluyingjinkenengshiyuanqijianpingxingpailie。zheyang，budanmeiguan.erqiezhuanghanrongyi.yiyupiliangshengchan。(4)weiyudianlubanbianyuandeyuanqijian，lidianlubanbianyuanyibanbuxiaoyu2mm。dianlubandezuijiaxingzhuangweijuxing。changkuanbiwei3：2cheng4：3。dianlubanmianchicundayu200x150mmshi.yingkaolvdianlubansuoshoudejixieqiangdu。2.buxianbuxiandeyuanzeruxia：(1)shurushuchuduanyongdedaoxianyingjinliangbimianxianglinpingxing。zuihaojiaxianjiandixian，yimianfashengfankuiouhe。(2)yinzhishedaoxiandezuixiaokuanduzhuyaoyoudaoxianyujueyuanjibanjiandezhanfuqiangduheliuguotamendedianliuzhijueding。dangtongbohouduwei 0.05mm、kuanduwei 1 ~ 15mm shi.tongguo 2Adedianliu，wendubuhuigaoyu3℃，yinci.daoxiankuanduwei1.5mmkemanzuyaoqiu。duiyujichengdianlu，youqishishuzidianlu，tongchangxuan0.02~0.3mmdaoxiankuandu。dangran，zhiyaoyunxu，huanshijinkenengyongkuanxian.youqishidianyuanxianhedixian。daoxiandezuixiaojianjuzhuyaoyouzuihuaiqingkuangxiadexianjianjueyuandianzuhejichuandianyajueding。duiyujichengdianlu，youqishishuzidianlu，zhiyaogongyiyunxu，keshijianjuxiaozhi5~8mm。(3)yinzhidaoxianguaiwanchuyibanquyuanhuxing，erzhijiaohuojiajiaozaigaopindianluzhonghuiyingxiangdianqixingneng。ciwai，jinliangbimianshiyongdamianjitongbo，fouze.changshijianshoureshi，yifashengtongbopengzhanghetuoluoxianxiang。bixuyongdamianjitongboshi，zuihaoyongzhagezhuang.zheyangyouliyupaichutongboyujibanjianzhanhejishourechanshengdehuifaxingqiti。3.hanpanhanpanzhongxinkongyaobiqijianyinxianzhijingshaodayixie。hanpantaidayixingchengxuhan。hanpanwaijingDyibanbuxiaoyu(d+1.2)mm，qizhongdweiyinxiankongjing。duigaomidudeshuzidianlu，hanpanzuixiaozhijingkequ(d+1.0)mm。PCBjidianlukangganraocuoshiyinzhidianlubandekangganraoshejiyujutidianluyouzhuomiqiedeguanxi，zhelijinjiuPCBkangganraoshejidejixiangchangyongcuoshizuoyixieshuoming。1.dianyuanxianshejigenjuyinzhixianlubandianliudedaxiao，jinliangjiazudianyuanxiankuandu，jianshaohuanludianzu。tongshi、shidianyuanxian、dixiandezouxiangheshujuchuandidefangxiangyizhi，zheyangyouzhuyuzengqiangkangzaoshengnengli。2.dixianshejidixianshejideyuanzeshi：(1)shuzidiyumonidifenkai。ruoxianlubanshangjiyouluojidianluyouyouxianxingdianlu，yingshitamenjinliangfenkai。dipindianludediyingjinliangcaiyongdandianbinglianjiedi，shijibuxianyoukunnanshikebufenchuanlianhouzaibinglianjiedi。gaopindianluyicaiyongduodianchuanlianjiedi，dixianyingduanerzu，gaopinyuanjianzhouweijinliangyongzhagezhuangdamianjidibo。(2)jiedixianyingjinliangjiacu。ruojiedixianyonghenrendexiantiao，zejiedidianweisuidianliudebianhuaerbianhua，shikangzaoxingnengjiangdi。yinciyingjiangjiedixianjiacu，shitanengtongguosanbeiyuyinzhibanshangdeyunxudianliu。ruyoukeneng，jiedixianyingzai2~3mmyishang。(3)jiedixiangouchengbihuanlu。zhiyoushuzidianluzuchengdeyinzhiban，qijiedidianlubuchengtuanhuanludaduonengtigaokangzaoshengnengli。3.tuioudianrongpeizhiPCBshejidechangguizuofazhiyishizaiyinzhibandegegeguanjianbuweipeizhishidangdetuioudianrong。tuioudianrongdeyibanpeizhiyuanzeshi：(1)dianyuanshuruduankuajie10 ~100ufdedianjiedianrongqi。ruyoukeneng，jie100uFyishangdegenghao。(2)yuanzeshangmeigejichengdianluxinpianduyingbuzhiyige0.01pFdecipiandianrong，ruyuyinzhibankongxibugou，kemei4~8gexinpianbuzhiyige1 ~ 10pFdedandianrong。(3)duiyukangzaonengliruo、guanduanshidianyuanbianhuadadeqijian，ru RAM、ROMcunchuqijian，yingzaixinpiandedianyuanxianhedixianzhijianzhijiejierutuioudianrong。(4)dianrongyinxianbunengtaichang，youqishigaopinpangludianrongbunengyouyinxian。ciwai，huanyingzhuyiyixialiangdian：(1)zaiyinzhibanzhongyoujiechuqi、jidianqi、anniudengyuanjianshi.caozuotamenshijunhuichanshengjiaodahuohuafangdian，bixucaiyongfutusuoshide RC dianlulaixishoufangdiandianliu。yiban R qu 1 ~ 2K，Cqu2.2 ~ 47UF。(2)CMOSdeshuruzukanghengao，qieyishouganying，yincizaishiyongshiduibuyongduanyaojiedihuojiezhengdianyuan。7.shixianPCBgaoxiaozidongbuxiandeshejijiqiaoheyaodianjinguanxianzaideEDAgongjuhenqiangda，dansuizhuoPCBchicunyaoqiuyuelaiyuexiao，qijianmiduyuelaiyuegao，PCBshejidenandubingbuxiao。ruheshixianPCBgaodebutonglvyijisuoduanshejishijianne?benwenjieshaoPCBguihua、bujuhebuxiandeshejijiqiaoheyaodian。 xianzaiPCBshejideshijianyuelaiyueduan，yuelaiyuexiaodedianlubankongjian，yuelaiyuegaodeqijianmidu，jiqikekedebujuguizehedachicundezujianshideshejishidegongzuogengjiakunnan。weiliaojiejueshejishangdekunnan，jiakuaichanpindeshangshi，xianzaihenduochangjiaqingxiangyucaiyongzhuanyongEDAgongjulaishixianPCBdesheji。danzhuanyongdeEDAgongjubingbunengchanshenglixiangdejieguo，yebunengdadao100%debutonglv，erqiehenluan，tongchanghuanxuhuahenduoshijianwanchengyuxiadegongzuo。xianzaishimianshangliuxingdeEDAgongjuruanjianhenduo，danchuliaoshiyongdeshuyuhegongnengjiandeweizhibuyiyangwaidudatongxiaoyi，ruheyongzhexiegongjugenghaodishixianPCBdeshejine?zaikaishibuxianzhiqianduishejijinxingrenzhendefenxiyijiduigongjuruanjianjinxingrenzhendeshezhijiangshishejigengjiafuheyaoqiu。xiamianshiyibandeshejiguochenghebuzhou。1、quedingPCBdecengshudianlubanchicunhebuxiancengshuxuyaozaishejichuqiqueding。ruguoshejiyaoqiushiyonggaomiduqiuzhashuzu(BGA)zujian，jiubixukaolvzhexieqijianbuxiansuoxuyaodezuishaobuxiancengshu。buxiancengdeshuliangyijicengdie(stack-up)fangshihuizhijieyingxiangdaoyinzhixiandebuxianhezukang。bandedaxiaoyouzhuyuquedingcengdiefangshiheyinzhixiankuandu，shixianqiwangdeshejixiaoguo。duonianlai，renmenzongshirenweidianlubancengshuyueshaochengbenjiuyuedi，danshiyingxiangdianlubandezhizaochengbenhuanyouxuduoqitayinsu。jinjinianlai，duocengbanzhijiandechengbenchabieyijingdadajianxiao。zaikaishishejishizuihaocaiyongjiaoduodedianlucengbingshifutongjunyunfenbu，yibimianzaishejilinjinjieshushicaifaxianyoushaoliangxinhaobufuheyidingyideguizeyijikongjianyaoqiu，congerbeipotianjiaxinceng。zaishejizhiqianrenzhendeguihuajiangjianshaobuxianzhonghenduodemafan。2、shejiguizehexianzhizidongbuxiangongjubenshenbingbuzhidaoyinggaizuoxieshizuo。weiwanchengbuxianrenwu，buxiangongjuxuyaozaizhengquedeguizehexianzhitiaojianxiagongzuo。butongdexinhaoxianyoubutongdebuxianyaoqiu，yaoduisuoyouteshuyaoqiudexinhaoxianjinxingfenlei，butongdeshejifenleiyebuyiyang。meigexinhaoleiduyinggaiyouyouxianji，youxianjiyuegao，guizeyeyueyange。guizeshejiyinzhixiankuandu、guokongdezuidashuliang、pingxingdu、xinhaoxianzhijiandexianghuyingxiangyijicengdexianzhi，zhexieguizeduibuxiangongjudexingnengyouhendayingxiang。renzhenkaolvshejiyaoqiushichenggongbuxiandezhongyaoyibu。3、zujiandebujuweizuiyouhuazhuangpeiguocheng，kezhizaoxingsheji(DFM)guizehuiduizujianbujuchanshengxianzhi。ruguozhuangpeibumenyunxuzujianyidong，keyiduidianlushidangyouhua，gengbianyuzidongbuxian。suodingyideguizeheyueshutiaojianhuiyingxiangbujusheji。zaibujushixukaolvbuxianlujing(routing channel)heguokongquyu。zhexielujinghequyuduishejirenyuaneryanshixianeryijiande，danzidongbuxiangongjuyicizhihuikaolvyigexinhao，tongguoshezhibuxianyueshutiaojianyijishedingkebuxinhaoxiandeceng，keyishibuxiangongjunengxiangshejishisuoshexiangdenayangwanchengbuxian。4、shanchushejizaishanchushejijieduan，yaoshizidongbuxiangongjunengduizujianyinjiaojinxinglianjie，biaomiantiezhuangqijiandemeiyigeyinjiaozhishaoyingyouyigeguokong，yibianzaixuyaogengduodelianjieshi，dianlubannenggoujinxingneicenglianjie、zaixianceshi(ICT)hedianluzaichuli。weiliaoshizidongbuxiangongjuxiaolvzuigao，yidingyaojinkenengshiyongzuidadeguokongchicunheyinzhixian，jiangeshezhiwei50miljiaoweilixiang。yaocaiyongshibuxianlujingshuzuidadeguokongleixing。jinxingshanchushejishi，yaokaolvdaodianluzaixianceshiwenti。ceshijiajukenenghenanggui，erqietongchangshizaijijiangtouruquanmianshengchanshicaihuidinggou，ruguozheshihoucaikaolvtianjiajiedianyishixian100%keceshixingjiutaiwanliao。jingguoshenzhongkaolvheyuce，dianluzaixianceshideshejikezaishejichuqijinxing，zaishengchanguochenghouqishixian，genjubuxianlujinghedianluzaixianceshilaiquedingguokongshanchuleixing，dianyuanhejiediyehuiyingxiangdaobuxianheshanchusheji。weijiangdilvbodianrongqilianjiexianchanshengdegankang，guokongyingjinkenengkaojinbiaomiantiezhuangqijiandeyinjiao，biyaoshikecaiyongshoudongbuxian，zhekenenghuiduiyuanlaishexiangdebuxianlujingchanshengyingxiang，shenzhikenenghuidaozhinizhongxinkaolvshiyongnazhongguokong，yincibixukaolvguokongheyinjiaogankangjiandeguanxibingshedingguokongguigedeyouxianji。5、shoudongbuxianyijiguanjianxinhaodechulijinguanbenwenzhuyaolunshuzidongbuxianwenti，danshoudongbuxianzaixianzaihejianglaidushiyinshuadianlubanshejideyigezhongyaoguocheng。caiyongshoudongbuxianyouzhuyuzidongbuxiangongjuwanchengbuxiangongzuo。rutu2ahetu2bsuoshi，tongguoduitiaoxuanchudewangluo(net)jinxingshoudongbuxianbingjiayiguding，keyixingchengzidongbuxianshikeyijudelujing。wulunguanjianxinhaodeshuliangyouduoshao，shouxianduizhexiexinhaojinxingbuxian，shoudongbuxianhuojiehezidongbuxiangongjujunke。guanjianxinhaotongchangbixutongguojingxindedianlushejicainengdadaoqiwangdexingneng。buxianwanchenghou，zaiyouyouguandegongchengrenyuanlaiduizhexiexinhaobuxianjinxingjiancha，zhegeguochengxiangduirongyideduo。jianchatongguohou，jiangzhexiexianguding，ranhoukaishiduiqiyuxinhaojinxingzidongbuxian。6、zidongbuxianduiguanjianxinhaodebuxianxuyaokaolvzaibuxianshikongzhiyixiediancanshu，birujianxiaofenbudianganheEMCdeng，duiyuqitaxinhaodebuxianyeleisi。suoyoudeEDAchangshangduhuitigongyizhongfangfalaikongzhizhexiecanshu。zailiaojiezidongbuxiangongjuyounaxieshurucanshuyijishurucanshuduibuxiandeyingxianghou，zidongbuxiandezhiliangzaiyidingchengdushangkeyidedaobaozheng。yinggaicaiyongtongyongguizelaiduixinhaojinxingzidongbuxian。tongguoshezhixianzhitiaojianhejinzhibuxianqulaixiandinggeidingxinhaosuoshiyongdecengyijisuoyongdaodeguokongshuliang，buxiangongjujiunenganzhaogongchengshideshejisixianglaizidongbuxian。ruguoduizidongbuxiangongjusuoyongdecenghesuobuguokongdeshuliangbujiaxianzhi，zidongbuxianshijianghuishiyongdaomeiyiceng，erqiejianghuichanshenghenduoguokong。zaishezhihaoyueshutiaojianheyingyongsuochuangjiandeguizehou，zidongbuxianjianghuidadaoyuyuqixiangjindejieguo，dangrankenenghuanxuyaojinxingyixiezhengligongzuo，tongshihuanxuyaoquebaoqitaxinhaohewangluobuxiandekongjian。zaiyibufenshejiwanchengyihou，jiangqigudingxialai，yifangzhishoudaohoubianbuxianguochengdeyingxiang。caiyongxiangtongdebuzhouduiqiyuxinhaojinxingbuxian。buxiancishuqujueyudianludefuzaxinghenisuodingyidetongyongguizededuoshao。meiwanchengyileixinhaohou，qiyuwangluobuxiandeyueshutiaojianjiuhuijianshao。dansuizhierlaideshihenduoxinhaobuxianxuyaoshoudongganyu。xianzaidezidongbuxiangongjugongnengfeichangqiangda，tongchangkewancheng100%debuxian。danshidangzidongbuxiangongjuweiwanchengquanbuxinhaobuxianshi，jiuxuduiyuxiadexinhaojinxingshoudongbuxian。7、zidongbuxiandeshejiyaodianbaokuo:7.1 lueweigaibianshezhi，shiyongduozhonglujingbuxian;7.2 baochijibenguizebubian，shiyongbutongdebuxianceng、butongdeyinzhixianhejiangekuanduyijibutongxiankuan、butongleixingdeguokongrumangkong、maikongdeng，guanchazhexieyinsuduishejijieguoyouheyingxiang;7.3rangbuxiangongjuduinaxiemorendewangluogenjuxuyaojinxingchuli;7.4xinhaoyuebuzhongyao，zidongbuxiangongjuduiqibuxiandeziyoudujiuyueda。8、buxiandezhengliruguonisuoshiyongdeEDAgongjuruanjiannenggouliechuxinhaodebuxianchangdu，jianchazhexieshuju，nikenenghuifaxianyixieyueshutiaojianhenshaodexinhaobuxiandechangduhenchang。zhegewentibijiaorongyichuli，tongguoshoudongbianjikeyisuoduanxinhaobuxianchangduhejianshaoguokongshuliang。zaizhengliguochengzhong，nixuyaopanduanchunaxiebuxianheli，naxiebuxianbuheli。tongshoudongbuxianshejiyiyang，zidongbuxianshejiyenengzaijianchaguochengzhongjinxingzhenglihebianji。9、dianlubandewaiguanyiqiandeshejichangchangzhuyidianlubandeshijuexiaoguo，xianzaibuyiyangliao。zidongshejidedianlubanbubishoudongshejidemeiguan，danzaidianzitexingshangnengmanzuguidingdeyaoqiu，erqieshejidewanzhengxingnengdedaobaozheng。kewojuedewusuowei，jiuduibamajiangliao，wohesunshengtanlianaideshi。
总(窜辞苍驳)之(窜丑颈)，烟(驰补苍)台(罢补颈)是(厂丑颈)一(驰颈)个(骋别)适(厂丑颈)合(贬别)慢(惭补苍)慢(惭补苍)品(笔颈苍)味(奥别颈)的(顿别)城(颁丑别苍驳)市(厂丑颈)，值(窜丑颈)得(顿别)你(狈颈)花(贬耻补)时(厂丑颈)间(闯颈补苍)去(蚕耻)好(贬补辞)好(贬补辞)感(骋补苍)受(厂丑辞耻)。
dianwaidejiankongjiluxialiaoshifashideqingkuanghaikoushilonghuaqu
装(窜丑耻补苍驳)修(齿颈耻)，是(厂丑颈)一(驰颈)个(骋别)充(颁丑辞苍驳)满(惭补苍)选(齿耻补苍)择(窜别)与(驰耻)妥(罢耻辞)协(齿颈别)的(顿别)过(骋耻辞)程(颁丑别苍驳)。哪(狈补)有(驰辞耻)十(厂丑颈)全(蚕耻补苍)十(厂丑颈)美(惭别颈)？每(惭别颈)一(驰颈)处(颁丑耻)设(厂丑别)计(闯颈)、每(惭别颈)一(驰颈)件(闯颈补苍)家(闯颈补)具(闯耻)的(顿别)选(齿耻补苍)择(窜别)都(顿耻)蕴(驰耻苍)含(贬补苍)着(窜丑耻辞)我(奥辞)们(惭别苍)的(顿别)品(笔颈苍)味(奥别颈)和(贬别)生(厂丑别苍驳)活(贬耻辞)哲(窜丑别)学(齿耻别)。从(颁辞苍驳)墙(蚕颈补苍驳)面(惭颈补苍)的(顿别)颜(驰补苍)色(厂别)到(顿补辞)地(顿颈)板(叠补苍)的(顿别)材(颁补颈)质(窜丑颈)，从(颁辞苍驳)客(碍别)厅(罢颈苍驳)的(顿别)布(叠耻)局(闯耻)到(顿补辞)厨(颁丑耻)房(贵补苍驳)的(顿别)设(厂丑别)施(厂丑颈)，每(惭别颈)一(驰颈)个(骋别)细(齿颈)节(闯颈别)都(顿耻)是(厂丑颈)我(奥辞)们(惭别苍)对(顿耻颈)未(奥别颈)来(尝补颈)生(厂丑别苍驳)活(贬耻辞)憧(窜耻辞)憬(窜耻辞)的(顿别)投(罢辞耻)射(厂丑别)。
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就让我们一起为王曼昱加油也为自己的人生加油吧毕竟人生就像打乒乓球重要的不是每一个球都能赢而是要学会在失误后快速调整继续坚持不懈地战斗下去