Kubatsira BOM Kukanganisa Kutarisa Kutsigira Chikamu Chekutenga
The Bill of Materials (BOM) yezvigadzirwa zvemagetsi ibasa rakatwasuka asi rakaomarara. Nezvizhinji zvezvikamu, kunyangwe kutarisisa kudiki kunogona kutungamira mukutora zvisirizvo zvikamu. Manual kuenzanisa kunowedzera njodzi yekukanganisa. Kana kukanganisa kukaitika panguva yeBOM yekufananidza nhanho, inotevera kubvunza kwekutenga uye makotesheni evatengi anogona kunge asina kukanganisa zvakare. Parizvino, hapana yakabatana chikamu dhatabhesi muindasitiri. Mainjiniya anowanzo kuvaka maraibhurari avo anowanzo shandiswa ekurongedza, zvichikonzera kusawirirana kweruzivo rwechikamu. Zvikonzero zvekutanga ndezvizvi: Panguva yekugadzira, mainjiniya emagetsi anotarisa pamagetsi ezvikamu. Nekudaro, mukugadzira nekutenga maitiro, vashandi vanofanirwa kutarisisa kune rumwe ruzivo, senge mugadziri, mutengesi, uye mugadziri chikamu nhamba (MPN). Iyo BOM inopihwa nevatengi inogona kunge iine mazana kana kunyange zviuru zvemitsetse zvinhu zvine mafomati asina chokwadi nemakoramu. Kazhinji, vatengi vanopa kanenge yepakutanga
8 Chengetedzo Distance dzeKufunga muPCB Dhizaini
PCB dhizaini inoda kutariswa kune akati wandei ekuchengetedza madaro, anosanganisira kuteedzera nzvimbo, mavara spacing, uye pad spacing. Aya mafungidziro anogona kazhinji kuiswa mumhando mbiri: magetsi ekuchengetedza madaro uye asiri emagetsi ekuchengetedza madaro. 01 Electrical Safety Distances Kutsvaga-ku-Trace Spacing Kuvagadziri vePCB vemazuva ose, nzvimbo shoma pakati pemakwara haifanire kunge iri pasi pe0.075mm. Mutsara mudiki-diki (minimum trace spacing) zvinoreva kanhambwe kadiki pakati pezvikwambo kana pakati pechironda nepedhi. Kubva pamaonero ekugadzira, nzvimbo yakakura iri nani, iine 0.127mm iri chiyero chakajairwa. Pad Hole Diameter uye Pad Width Kana iyo padhi ikashandisa kuchera, iyo shoma gomba dhayamita haifanire kunge isingasviki 0.2mm; yekuchera laser, iyo shoma gomba dhayamita ndeye 0.1mm. Iyo gomba dhayamita kushivirira inosiyana zvishoma zvichienderana nechinhu, kazhinji inodzorwa mukati me 0.05mm, uye iyo shoma pad hupamhi haifanirwe kuve isingasviki 0.2mm. Pad-to-Pad Spacing Iyo yediki spacing pakati pemapedhi haifanire
Maitiro ekudzivirira mapini mumaskweya slots uye masikweya maburi emapini emudziyo
Nhanganyaya Mazuva ano, mabhodhi edunhu anoshandisa zvikamu zveSMD zvakawanda kupfuura plug-in components, asi kune izvo zvigadzirwa zvemagetsi zvine zvakakwirira zvinopisa kupisa zvinodiwa, kushanda kweplug-in components kuchave kuri nani pane iyo yeSMD components. Mukuwedzera, iyo yekunze interface yebhobhobhobho uye zvigadzirwa zvechibatanidza zvose zvinoshandisa plug-in pini, zvakadai se USB, HDMI, network ports, nezvimwe zvigadziri.Nezve mapini emakona emapini e-plug-in, pane manufacturability nyaya muDFM kuongorora. Mapini emudziyo anowanzo kutenderera kana kuti ovhari, asi mapini emamwe mapini emusoro mapini ane sikweya. Sikweya pini haina kunyatso kurongeka paunenge uchigadzira mapakeji, kunyangwe imwe EDA software inogona kugadzira mapakeji ane sikweya pini. Nekudaro, makomba emapini haagone kuitwa padivi rekugadzira nekuti yekuchera inotenderera. Square Pin Drawing Method 1. Allegro inodhirowa mapini masikweya Kutanga, vhura iyo Padstack Editor package yekudhirowa chishandiso. Panguva yekudhirowa kwepakeji,
Ese matambudziko eBGA welding aunoda kuziva ari pano
BGA Overview BGA imhando yechip package, ipfupi yeBall Grid Array muChirungu. Mapini epasuru ibhora regidhi arrays pazasi pepakeji, uye mapini ane denderedzwa uye akarongwa mune grid-yakafanana pateni, saka zita rekuti BGA.Many motherboard control machipisi anoshandisa rudzi urwu rwekurongedza tekinoroji, uye zvinhu zvacho zvakanyanya ceramic. Memory yakarongedzwa neBGA tekinoroji inogona kuwedzera ndangariro huwandu kaviri kana katatu pasina kushandura vhoriyamu. Kuenzaniswa neTSOP, BGA ine vhoriyamu diki, kupisa kuri nani, uye kushanda kwemagetsi. BGA Package Pad Routing Design 1. Routing pakati BGA Mapedhi Panguva magadzirirwo, ari BGA pad spacing iri isingasviki 10mil, uye routing hakubvumidzwi pakati BGAs maviri, nokuti mutsetse upamhi spacing of routing rinopfuura kugadzirwa muitiro kugona. Kana routing ichizoitwa, iyo BGA pad inogona kuderedzwa chete. Paunenge uchigadzira chigadzirwa
Makona anofanirwa kutaurwa nezveDIP zvishandiso
DIP Overview DIP iplug-in. Iyo chip inoshandisa nzira yekurongedza iyi ine mitsara miviri yepini, iyo inogona kutengeswa zvakananga pane chip socket ine DIP chimiro kana munzvimbo ye soldering ine nhamba yakafanana yemaburi ekutengesa. Hunhu hwayo ndehwekuti inogona kuona zviri nyore iyo perforation soldering yePCB board uye inoenderana zvakanaka nebhodhi reamai. Nekudaro, nekuda kwenzvimbo yayo yakakura yekurongedza uye ukobvu, uye mapini ari nyore kukuvadzwa panguva yeplug-in uye unplug process, kuvimbika kwakashata. DIP ndiyo inonyanya kufarirwa plug-in package, uye huwandu hwemashandisirwo ayo hunosanganisira standard logic IC, memory LSI, microcomputer circuits, etc. Diki outline package (SOP). Yakatorwa SOJ (J-mhando yepini diki reratidziro pasuru), TSOP (yakatetepa pepa rekutaura pasuru), VSOP (diki diki pepa rekutaura), SSOP (kuderera SOP), TSSOP (yakaonda shrink SOP) uye SOT (diki rondedzero transistor), SOIC (diki rondedzero yakabatanidzwa yedunhu), nezvimwe.
Zviri nyore kushandisa! Hapana chikonzero chekunetseka nezve PCB graphic alignment
Shamwari dzakawanda dzichasangana nemamiriro eiyo graphic misalignment kana uchishandisa wonderfulpcb DFM Services software kupinza Gerber mafaira. Chikonzero chekutadza kurongeka kwemagiraidhi ndechekuti kune zvinhu zvisingazivikanwe kunze kwedhizaini faira, uye saizi ye canvas yega yega yega yakasiyana, izvo zvinoita kuti marongero achinje nehukuru hwe canvas apo EDA software inoshandura faira yeGerber, zvichikonzera graphic offset. Saka sei kuenzanisa magirafu eGerber faira? Inotevera inoshamisapcb DFM Services inotora iwe kubhururuka! Bhodhi layer yegraphic alignment 1. Kurongeka kwerayiti imwe Danho rekutanga kuvhara mamwe matinji uye kuratidza chete danga rinofambiswa uye referensi yekumisikidza layer. Dzvanya kaviri layer kuti uvhare mamwe ma layer, ratidza one layer, wobva wadzvanya kuvhura imwe layer. Nhanho yechipiri ndeyekuvhura nzvimbo yekubata, ndiko kuti, kubata pakati peiyo graphic
PCB Dhizaini Pitfall Kudzivirira Gwaro
Kuve nechokwadi chekuvimbika kwezvigadzirwa zvemagetsi zvigadzirwa kwakakosha. Kugadzirwa kwekugadzira kunosanganisira zvinhu zvitatu zvakakosha: PCB dhizaini yekugadzira, PCBA dhizaini yegungano, uye inodhura-inoshanda dhizaini yekugadzira. Pakati peizvi, PCB manufacturability dhizaini inotarisa pane yekugadzira maonero ePCB mabhodhi, tichifunga nezvemaitiro maparamendi ekuvandudza goho rekugadzira uye kuderedza kutaurirana mari. Magadzirirwo ekufunga anosanganisira hupamhi hwemutsara uye nzvimbo, gomba-ku-mutsara uye gomba-ku-gomba madaro, izvo zvese zvinofanirwa kugadziriswa panguva yekugadzira chikamu. Kukosha kwePCB Dhizaini Mukugadzirwa kwechigadzirwa chemagetsi, iyo PCB inoshanda senge svikiro remukati weiyo dhizaini yemukati, ichiziva zvese zvinangwa zvekugadzira uye mabasa echigadzirwa. Naizvozvo, PCB dhizaini chinhu chakakosha chinongedzo mune chero chirongwa. Kugadzira dhizaini yePCB inoda kutariswa kwemainjiniya kuti ive nechokwadi chekuti dhizaini inoenderana nehunyanzvi hwekugadzira. Yakajairwa Dhizaini Pitfalls Mushure mekupedza PCB dhizaini, iyo yemuviri wedunhu bhodhi inogadzirwa. Kazhinji, iyo PCB yakagadzirwa haigone kugadzirwa nekuda kwekusawirirana pakati pemaitiro ekugadzira
Ndeapi mafaira ePCB anogona kushandiswa kuDFM Analysis?
Nei PCB dhizaini ichida kuongororwa kwegungano? Iko kufunga PCB gungano mukutanga dhizaini dhizaini kuti uwane yakanakisa chigadzirwa.Pane dambudziko rinowanzoitika ringave risingawanzi pakati pePCB kugadzira masters, asi ichiri yakajairika kune vatsva, ndiko kuti, yekutanga dhizaini dhizaini dhizaini haifungi zvakakwana gungano. Pane zvinopesana, kunyanya kutariswa kunobhadharwa kuPCB pachayo, uye hapana kunzwisisa kwakawanda kwezvinetso mukugadzirwa kwekugadzira, izvo zvinotungamirira kukukundikana kwekugadzirwa kwechigadzirwa. Izvi zvinotevera sumo kune mafaira e data anoda kugadzirirwa pamberi pekuongorora kwegungano! 1. Mafaira ePCB/ODB 1) PCB faira: Tanga wavhura software yeDFM, tinya “Faira” kuti uwane faira richashandiswa, tinya Vhura uye mirira kuti software iparadze otomatiki isati yaishandisa. Kana kuvhura software uye dhonza faira muhwindo remifananidzo yesoftware
Basa re wonderfulpcb DFM Services mu Hardware Design uye Manufacturing
Iyo PCBA hardware dhizaini uye yekugadzira maitiro inosanganisira akawanda malink. Zvigadzirwa zve Hardware zvinoumbwa nematanho akati wandei: dhizaini yehardware, iyo inosanganisira PCB kudhirowa, PCB redunhu bhodhi kugadzira, chikamu chekutenga uye kuongorora, SMT chigamba kugadzirisa, plug-in kugadzirisa, kupisa chirongwa, kuyedza, kuchembera, uye mamwe maitiro. Ngatitsanangurirei basa reDFM mune izvi zvinongedzo. 1. Hardware Dhizaini Inosanganisira PCB Kudhirowa Chinhu chikuru chekugadzira dhizaini dhizaini yedhizaini yedhizaini yemagetsi ekudzora system, kusarudzwa kwemagetsi ekudzora zvikamu, uye dhizaini yekudzora kabati. Iyo dhizaini yedhizaini yemagetsi ekudzora system inosanganisira iyo huru dunhu uye dunhu rekutonga. Iyo control circuit inosanganisira iyo I / O wiring ye PLC uye kubatanidzwa kwakadzama kweiyo otomatiki uye yemanyorero zvikamu. Kusarudzwa kwezvinhu zvemagetsi kunonyanya kuenderana nezvinodiwa zvekutonga, zvinosanganisira mabhatani, switch, sensors, inodzivirira magetsi emagetsi, macontactor, marambi echiratidzo, solenoid mavharuvhu,
Wonderfulpcb DFM Services neDFA yava kuwanikwa!
Munguva yekugadzira PCBA kugadzira uye kusangana, mainjiniya ehardware anogona kuwanzosangana nematambudziko akadai: dhizaini yePCB inetsoko, zvinhu zvakatengwa hazvienderane neizvo chaizvo panguva yePBCA yekugadzirisa, kutenderera kwekugadzirwa kwechigadzirwa kwakareba, uye mhando haigone kuvimbiswa… Shamwari dzakadzidza nezvedu dzinogona kuziva kuti takagadzira software yekuongorora inogadzirwa-Wonderfulpcb DFM Services.Kare, takasumawo mabasa mazhinji uye nzira dzekushandisa dze "Wonderfulpcb DFM Services," iyo yakashandiswawo nevanopfuura 200,000 mainjiniya shamwari. Kutenda kune mhinduro uye mazano evazhinji veinjiniya, panguva ino, Wonderfulpcb DFM Services inowanikwa online neiyo itsva DFA basa! DFM neDFA Saka, ndeapi mabasa matsva eDFA eWonderfulpcb DFM Services? Tisati tanzwisisa mabasa, ngatitaure pamusoro pezvinhu zvekare uye muchidimbu suma
wonderfulpcb DFM Visual BOM Interactive Welding Tool chikomborero kune SMT mafekitari uye PCB mainjiniya!
Parizvino, zvigadzirwa zvemagetsi zvakapinda mumakona ese ehupenyu hwedu, uye zvigadzirwa zvazvo zvinovhara kutaurirana, zvekurapa, komputa peripheral audio-visual zvigadzirwa, matoyi, midziyo yemumba, zvigadzirwa zvechiuto, etc. Nezve PCBA welding yezvigadzirwa zvemagetsi, manual welding inowanzoshandiswa padanho remuenzaniso. Kubatsira kwemanual welding ndeyokuti inodhura-yakaderera uye inogona kuitwa nesimbi yesimbi. Kana mashoma emuenzaniso mabhodhi akasungirirwa nemuchina, kukosha kwemuenzaniso hakuna kukwana kuvhara mutengo wemuchina. Kuti uvandudze mashandiro echinyorwa cheWelding uye iko kurongeka kwechikamu chewelding, wonderfulpcb DFM yakatanga chitubu chekuona welding icho chinopindirana neiyo BOM runyorwa uye PCB dhayagiramu. Ichi chishandiso chinogona zvakare kubatsira mafekitori eSMT kutarisa uye kuverenga zvinhu zvemukati uye kuwana mapoinzi ekugadzirisa. Visual BOM inopindirana welding maturusi anoshanda uye anoshanda, chiri chikomborero chaicho kune SMT
Iko kukosha kweChikamu Chimiro chePCBA
1. Kudzivirira Tin-Yakabatanidza Mapfupi CircuitsKuchengetedzwa kwepakati kunoenderana zvakanyanya nesimbi mesh yekuwedzera panguva yeSMT chigamba kugadzirisa. Zvinhu zvakadai sesimbi mesh kuvhura saizi, ukobvu, kunetsa, uye deformation zvinogona kukonzera welding kutsauka, zvichitungamira kumapfupi maseketi nekuda kwekuvharwa kwerata. 2. Kufambisa MashandiroKupatsanura kwakakwana kunogonesa kushanda zvakanaka panguva yekubatanidza ruoko, kusarudza welding, tooling, rework, inspection, testing, and assembly. Kupatsanura kwakakodzera kunopindirana nezvinodiwa nzvimbo yekushanda. 3. Kudzivisa Kupindirana muChip Zvikamu Chikamu chepakati chinokanganisa kuvimbika kwegungano. Semuenzaniso, kana ma chip components ari padhuze zvakanyanya, solder paste inogona kukwira kumusoro kwesoldering, ichiwedzera njodzi yebhiriji uye mapfupi maseketi, kunyanya ane zvitete zvidimbu. 4. Safety Spacing as a VariableComponent spacing zvinodiwa zvinoenderana nekugona kwemichina uye magungano ekugadzira zviyero. DFM software inoshandisa kuomarara kwemazinga — tsvuku, yero, uye girinhi — kuratidza kuchengetedzwa kwemazinga ekuona maparamendi epakati pechikamu. Kukanganisa kweIsinganzwisisike Magadzirirwo echikamu Chidzidzo Chenyaya: Dunhu Ipfupi kubva Kusina kukwana
Dhizaini yekugadzira (DFM) yave hunyanzvi hunodiwa kune PCB vagadziri
Dhizaini Yekugadzira (DFM) inobatanidza CAE (Computer Aided Engineering), CAD(Computer Aided Design), CAPP(Computer Aided Process Planning), uye CAM (Computer Aided Manufacturing) nekuongorora kwekugadzira, kuve nechokwadi chekuti zvinhu zvekugadzira zvinotariswa padanho rekugadzira. Kubva pachikamu chekutarisa: Dhizaini yekugadzira, izvi zvinosanganisira: Panguva yekugadzira ongororo yakarongeka inoitwa, uye machati ekuyerera anogadzirwa; hazvifanirwe kwete chete kuti mamwe madhipatimendi atarise asiwo akayambuka pakati pemadhipatimendi Matanho asina kufanira anofanirwa kudonhedzwa, pazvinogoneka uye mashandiro aongororwa. Ongorora kugona kwekugadzira uye zvisingakwanisi: Izvi zvinosanganisira kugadzira ongororo yakarongeka uye dhayagiramu yekuyerera kwedhayagiramu yemaitiro ekugadzira, anoongororwa nezvikwata zvinoenderana. Kushanda kusingakoshi kunobviswa uye maitiro anoongororwa. Ita shuwa yekugadzira uye mhando: Izvi zvinosanganisira kuyedza magadzirirwo ekuungana, kuyedza, kuchengetedza, uye huwandu hwese hwezvinhu zvitsva uye hukama hwegungano. Zviri Mukati meDFM Implementation 1. Kugadzira DFM Zvinotaurwa Kugadzira yakazara DFM yakatarwa inosanganisira ·Kuenderana ne
Electronic Component Packaging Overview
Chip component packaging chinhu chakakosha chekugadzira semiconductor mudziyo. Nekukurumidza kuvandudza tekinoroji, kunyanya muSMT (Surface-Mount Technology), kune akawanda mafomu ekurongedza anoshandiswa muindasitiri yemagetsi. Mamwe marudzi ekurongedza, senge chip capacitors uye resistors, ane saizi yakajairwa, nepo mamwe, kunyanya zvikamu zveIC, zviri kuramba zvichishanduka. Kurongedza kwepini yechinyakare kuri kutsiviwa zvishoma nezvishoma nezvizvarwa zvitsva zvemafomu ekurongedza seBGA (Ball Grid Array) uye Flip Chip. Common Chip Resistor Package Types Kune 9 inowanzoshandiswa kurongedza saizi ye chip resistors, inomiririrwa nemhando mbiri dzesaizi macode: imperial (inches) uye metric (millimita). Makodhi ane manhamba mana, apo maviri ekutanga anomiririra kureba, uye maviri ekupedzisira anomiririra upamhi hwechikamu. Heino kupatsanurwa kweakajairwa chip resistor mapakeji: Imperial Code Metric Code Length (L) Width (W) Urefu (t) a (mm) b (mm) 0201 0603 0.60±0.05 0.30±0.05
Maitiro ekushandisa DFM Kudzikisa PCB Manufacturing Mari?
Kune akawanda maficha kumutengo wePCBA kugadzira. Izvo zvakakosha zvinosanganisa zvinhu zvePCB isina bhodhi, mutengo weSMT kugadzirisa, uye mutengo wezvikamu. Pamusoro peizvi zvakakosha zvikamu, akati wandei mamwe maitiro anokanganisa mutengo wePCBA. Zvimwe zvezvinhu izvi zvinowanzoregeredzwa, zvinosanganisira zvimwe zvinhu, kuyedzwa, basa, kusangana, dhizaini uye PCB maitiro ekugadzirisa, uye SMT chigamba process optimization. Zvinokanganisa Mutengo weBare Board (PCB) Chikamu Bhodhi Mutengo Mhando dzakasiyana dzemabhodhi dzinouya nemitengo inosiyana, zvichienderana nemidziyo uye magadzirirwo. Drilling CostUwandu hwemakomba uye saizi yedhayamita yegomba zvinokanganisa mutengo wekuchera. Mamwe maburi kana madhayamita makuru achawedzera mutengo. Maitiro MutengoInodiwa maitiro ebhodhi, senge akakwenenzverwa machira kana madhizaini akaomarara, anotungamira kune akasiyana kugadzirwa kwezvinetso, zvichikonzera kusiyana kwemitengo. Mutengo weBasa, Mvura, Magetsi, uye KutarisiraIdzi mitengo
DFM (Manufacturability) Dhizaini yePCB Silkscreen
PCB Silkscreen inozivikanwawo se "silk screen" muindasitiri. PCB sirika sikirini inogona kuoneka pane zvakajairika PCB mabhodhi, saka ndeapi mabasa ePCB sirika skrini? 1. Kuziva Electronic Components Sezvatinoziva tose, kune zvisingaverengeki zvikamu zvemagetsi. Iyo sirika sikirini Silkscreens paPCB bhodhi inoshandiswa kuona kuti ndeapi emagetsi zvikamu zvakaiswa pane imwe neimwe pad. 2. SMT Gungano SMT inounganidza zvigamba kuburikidza nesiriki sikirini Silkscreens. PCB silk screen Silkscreens inobatsira fekitori kuona nhamba dzenzvimbo dzechikamu chimwe nechimwe panguva yekupeta. 3. Product Repair PCB silk screen Silkscreens inobatsirawo pakugadzirisa chigadzirwa. Vanotungamira vashandi vekugadzirisa mukutsvaga nzvimbo inoenderana yechikamu chimwe nechimwe. 4. Kuzivikanwa Kwechigadzirwa Pamusoro pekuzivikanwa kwechikamu, PCB silk screen Silkscreens inogona kusanganisira mamwe ruzivo rwakakosha, senge zita rechigadzirwa, mugadziri welogo, UL mamaki, makodhi ekugadzirwa kwekodhi, uye mamwe macode ekuzivikanwa. DFM Dhizaini
PCB Manufacturing File Formats
Mafaira einjiniya anoshandiswa mukugadzira PCB anosanganisira maPCB mafaera, ODB++ mafaera, maGerber mafaera, uye EXCELLON mafaera. Pakati peizvi, mafaira eGerber anoshandiswa kufotoplotting kugadzira firimu rekuratidzwa uye kudhinda skrini. EXCELLON mafomati mafaera anoshanda sekuchera uye kugaya chirongwa mafaera, kufambisa gomba kuchera uye kuumbwa. Mafaira ePCB anofanirwa kushandurwa kuita Gerber uye EXCELLON mafomati kuti ashandiswe mukugadzira. Kune rimwe divi, CAM software yekugadzira PCB inogona kuverenga zvakananga ODB ++ faira data. PCB Data Files Chii chinonzi PCB Faira? Mafaira ePCB ndiwo mafaira ekugadzira akachengetwa kubva kuEDA (Electronic Design Automation) software. Aya mafaera haakwanise kushanda zvakananga semafaira ekushandisa ekugadzira sezvo michina yekugadzira isingakwanise kuziva PCB faira mafomati. Yese PCB data mafaera akachengetwa kubva kuEDA software inoda kushandurwa kuita Gerber fomati yekugadzira. Gerber mafaera ndiyo yekutanga faira fomati inoshandiswa mukugadzira michina, kunyangwe mamwe maturusi ekuongorora anogona kutsigira
Iko Kuoma Kwekusakwana Kwekupana Kwekusanganiswa Kwemagetsi Zvikamu
SMT assembly chip processing iri pamwe nekuvandudzwa kwezvigadzirwa zvemagetsi kusvika mukusimudzirwa kwepamusoro-soro, gwara rakanaka, uye SMT chip kugadzirisa zvikamu zveiyo shoma dhizaini dhizaini inoda kukwanisa kuona kuti maPCBA pads haasi nyore kupfupika uye zvakare funga nezve kuchengetedzwa kwezvikamu. Migumisiro yekusakwana kwechikamu-ku-chikamu kupatsanurwa; Imwe yemapini ePazasi padivi rekubatanidza paPCB iri padyo zvakanyanya kune inotevera kuburikidza negomba, zvichikonzera kupfupika kwedunhu pakati pepini neiyo via buri, uye PCB inopiswa. Nhambwe iri pakati pegomba rekusungirira uye padhi idiki zvakanyanya. Iyo kuburikidza-gomba pachayo yakabatana zvakananga kune padhi, uye hapana solder inopikisa pakati pegomba uye padhi uye nzvimbo yacho haina kukodzera iyo wave soldering process, kana welding maparameter, sekumhanya uye.
Kukosha kweGlobal DFM Kuziva kwePCB Dhizaini
Enzaniso yekuti "ICs angori madiki mavhezheni e-multilayer PCB" haina zvachose isina kunaka. Sezvo maitiro achiwedzera kusiyaniswa pakati pevagadziri vePCB nevaunganidzi, PCB dhizaini inogona kutanga kumbundira humwe huzivi hwakafanana hunoshandiswa neIC dhizaini indasitiri kubata nekuoma kuri kuwedzera. DFM manufacturability ongororo inonyanya kukosha mukuomarara PCB dhizaini uye maitiro ekugadzira. 1. Chinangwa-yakatarisana nedhizaini yedhizaini Kiyi yeDFM yemahara dhizaini ndeyekuenderana nemirairo yekugadzira uye zvipingamupinyi kune kugona kwePCB yekugadzira uye kubatanidza mutengesi. Kana imwe nguva mitemo yekugadzira uye zvipingamupinyi zvasimbiswa, zvinova mamiriro ekudzokorora anofanirwa kuteverwa nguva dzose kuti ave nechokwadi chokuti dhizaini inogadzirwa. Matambudziko anomuka panguva yekugadzira ari nyore kuona uye kugadzirisa panguva yekugadzira chikamu. Kuve nekuziva kweDFM padanho rekugadzira kunogona kubhadhara mibairo mikuru. Kuziva nyaya dzekugadzira panguva yekutanga dhizaini
Gadzirisa Dambudziko rePCB SolderMask Vias
PCB solder mask inki zvinoenderana nekurapa nzira, solder mask inki ine photosensitive kugadzira ingi, kune kupisa-kupora thermosetting ingi, Kune zvakare UV mwenje-yakapora UV ingi. , uye PCB yakaoma bhodhi solder mask inki, FPC yakapfava bhodhi solder mask Ink, uye aluminium substrate solder mask inki, aluminium substrate inki inogonawo kushandiswa pamapuranga e ceramic. Vias anowanzo kupatsanurwa muzvikamu zvitatu: bofu vias, kuvigwa vias, uye kuburikidza nemakomba. "Blind vias" dziri pamusoro uye pasi pepamusoro pemapuranga edunhu akadhindwa. Iine humwe hudzamu uye inoshandiswa kubatanidza nzvimbo yepamusoro uye yemukati wemukati. , Circuit "Kuburikidza negomba" inopfuura nepakati pedare rose redunhu. , kubva kumusoro kusvika kune yemukati uye ipapo kusvika pasi. Vias muPCB solder mask processing, Zvakajairwa kuburikidza nemaitiro anosanganisira: kuburikidza nemafuta ekuvhara, kuburikidza neplug mafuta, kuburikidza nekuvhura hwindo, Resin plugging, electroplating kuzadza, nezvimwewo, imwe neimwe yematanho mashanu ine yayo.