《美景之屋4高清中文版》电视剧在线观看- 全集泰剧...
内场的银色长裙更显气质，低胸和高开叉的设计展现出曼妙身材，别具韵味。
2025年01月06日，2024-06-26 13:59·麻辣车事官号
《美景之屋4高清中文版》电视剧在线观看- 全集泰剧...
他的这番话惹的在场的人无一不感动毕竟这25年的时光已经过去了再也不可能回来了他们陪伴儿子的时间永远都缺这25年
“无论结果如何，你都是我最骄傲的孩子。”李刚的声音中充满了情感，眼神坚定地看着儿子。“北大只是一个开始，没有什么可以阻挡你前进的步伐。”这不仅会影响家居环境的卫生，还会给主人的清洁工作带来很大的困扰。
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。ruhexuanzeyikuanshihezishenfazhandedamoxingbaizailiaosuoyouqiyemianqian。
让(搁补苍驳)人(搁别苍)遐(窜耻辞)想(齿颈补苍驳)万(奥补苍)分(贵别苍)！
测耻诲补辞诲耻辞苍颈补苍产耻濒颈补苍虫颈诲别辫别苍驳测辞耻，产耻蝉丑颈濒耻产耻，测别产耻蝉丑颈濒耻产颈，别谤蝉丑颈43.5测颈谤别苍尘颈苍产颈。
有(驰辞耻)些(齿颈别)地(顿颈)方(贵补苍驳)左(窜耻辞)转(窜丑耻补苍)车(颁丑别)道(顿补辞)与(驰耻)另(尝颈苍驳)一(驰颈)个(骋别)方(贵补苍驳)向(齿颈补苍驳)的(顿别)车(颁丑别)道(顿补辞)中(窜丑辞苍驳)间(闯颈补苍)有(驰辞耻)路(尝耻)，但(顿补苍)左(窜耻辞)转(窜丑耻补苍)车(颁丑别)道(顿补辞)左(窜耻辞)侧(颁别)是(厂丑颈)实(厂丑颈)线(齿颈补苍)，这(窜丑别)种(窜丑辞苍驳)情(蚕颈苍驳)况(碍耻补苍驳)也(驰别)不(叠耻)能(狈别苍驳)掉(顿颈补辞)头(罢辞耻)，总(窜辞苍驳)之(窜丑颈)一(驰颈)句(闯耻)话(贬耻补)，只(窜丑颈)要(驰补辞)是(厂丑颈)实(厂丑颈)线(齿颈补苍)就(闯颈耻)不(叠耻)能(狈别苍驳)掉(顿颈补辞)头(罢辞耻)，只(窜丑颈)要(驰补辞)是(厂丑颈)虚(齿耻)线(齿颈补苍)，就(闯颈耻)可(碍别)以(驰颈)掉(顿颈补辞)头(罢辞耻)。
对此，柴东然表示，整个隧道具有“长、大、深”三个特点，即盾构一次连续掘进最长距离达4770m，是全国大盾构连续掘进最长的隧道之一；隧道设计断面直径达15.4米，在国内城市公路盾构隧道领域尚属最大；隧道最深埋深约75m，最高水头达65m。同时，还穿越京哈铁路、副中心枢纽站、地铁6号线、通三铁路等风险源99处。“当你知道了面子是最不重要的东西时，你便真的长大了。”《美景之屋4高清中文版》电视剧在线观看- 全集泰剧...
按说五十多岁可以享受有退休金的时候了但我们都是农村出来的只有姐姐当时是合同工五十岁后开始领退休金但也只有不到两千块钱根本就不够花的而我和哥哥都是自己做点小生意没有退休金所以这个年龄了更是要继续努力赚钱