PCB设计工艺标准.docx-,(MARK)productionrequirementsconsiderationoftestabilitydesignrequirementsforprocessdesignelectricaldesignrequirementspurposeForthedesignofPCB,inordertobestandardizedandstandardized,inordertomeettherequirementsoftheproductionprocess,thisstandardisformulated・(ponentshavebeenmassproduction,hasbeenverified,confirmed)toavoidtheirowndesignelementsduetoinconsiderateblunders・ponentlibrary,::5mm,,lOinm,,15mm,,20mm,,etc・considerationsforplug-inthroughholesduringlibrarymaking:Whennospecialrequirements,ordingtothetypeofdesign:D二d++;ponentfootdiameter,,socket,capacitor,,seebelowAndnospecialrequirements,ordingtothetypeofdesign:D二d++;ponentfootdiameter,ponents:Whennospecialrequirements,Dsizepadthrough-ordingtothefollowingformula:D二2d+0・2mm+;Distheaperturesizeofthethroughhole,asshowninthefollowingpictureThepadwithrivets,ordingtothefollowingformula:D二2d+lmm+00・1;Distheaperturesizeofthethroughhole,,sockets,capacit
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