SMT PCB、PWB 基板 设计上的重点(转) _ 移动互连设计

SMT()|[2011-8-1112:42:05]SMT()2010.01.28||pcb,“”“”SMTPCB—11.MARK/0.8mm-1.2mm2.MARK3.MARK3mm5mm3mm4.MARK±0.05m—2:PCB-(79)PADSHelper-(31)--(23)PADS-3()(21)-(14)--(12)LAYOUT(12)PCB(11)(11)ALLEGROSKILL(9)Happy:3...longguqi:longguqi1998@ho...nancy:“”:sad:...Fred:...charlee::?!...:···:grin:...dudu:...Raymond.Young:...lulu:paads...xuzhixiang:[e-mail]...SMT()|[2011-8-1112:42:05]—3———41608-321612160821253216EDABLOGAskQuestionatedablogSMT()|[2011-8-1112:42:05]—5sn-pbOSPsnSMT()|[2011-8-1112:42:05]SMT()|[2011-8-1112:42:05]SMTSMT()|[2011-8-1112:42:05]SMT()|[2011-8-1112:42:05]SMT()|[2011-8-1112:42:05]DFMPCBPCBPCBPCBPCBPCB?SMT()|[2011-8-1112:42:05]PCBPCB0603SOJPLCCBGA0.6mmPitchSOPStandoff0.15mmQFP45°SMTSOT23SMT“”THT1/4WSMT()|[2011-8-1112:42:05]SMDTHT3mmSMDBGA3mm5mmBGABGABGA5mmPCBASMT()|[2011-8-1112:42:05]SMT()|[2011-8-1112:42:05]SMTIPC782SMT()SOT230.8-1mm“”0.25mm0.70mmSMDSMTIC,,,0.51.0mmSMT()|[2011-8-1112:42:05]0.6mm1.0mmPCBLAYOUTDIP3LEDPCBV-CUT0.75mm0.3mm;PCB180mil(2mm)8mil280mil(2mm)120mil(3mm)12milSMT()|[2011-8-1112:42:05]3120mil(3mm)16milSMTSMTSMTPCBRRΦ5R5mmPCBMarkPCB1PCB2340mil±1mil4565mm1.5mm60mil78≤0.5mmQFP≤0.8mmBGAICSMT()|[2011-8-1112:42:05]PCB50mm×50mmPCB1122V-CUT12V-CUT3V-CUT453SMT()|[2011-8-1112:42:05]©DesignandlayoutcopyrightEDABLOG,2010.BOM:1.pcbchecklistPCB2.ESD3.PCBDesignCon4.PCB-5.PCB-«USB2.0EMIESD()|MentorPCB-DavidWiens»SMT()|[2011-8-1112:42:05]