Zhejiang NeoDen Technology Co., LTD., yakavambwa muna 2010, inyanzvi inogadziraSMT yekuisa muchina, reflow oven,stencil printer, SMT yekugadzira mutsara uye zvimwe SMT Zvigadzirwa.Isu tine yedu R & D timu uye fekitori pachedu, tichitora mukana weiyo yedu yakapfuma ine ruzivo R&D, yakanyatso dzidziswa kugadzirwa, yakawana mukurumbira mukuru kubva kune vatengi pasi rese.
Mumakore gumi aya, isu takazvimiririra takagadziraNeoDen4, NeoDen IN6,NeoDen K1830, NeoDen FP2636 uye zvimwe zvigadzirwa zveSMT, izvo zvakatengeswa zvakanaka pasi rese.Kusvika pari zvino, tatengesa michina inodarika zviuru gumi nekutengesa kunze kwenyika dzinopfuura zana nemakumi matatu pasirese, tichigadzira mukurumbira wakanaka pamusika.Mune yedu Ecosystem yepasi rose, isu tinodyidzana nemumwe wedu wepamoyo kuendesa sevhisi inovhara yekutengesa, yepamusoro hunyanzvi uye inoshanda tekinoroji rutsigiro.
Ndeapi misimboti mitanhatu yePCB wiring?
1. Simba rekushandisa, kushandiswa kwepasi
Ose ari maviri wiring muPCB board yese anopedzwa zvakanaka, asi kupindira kunokonzerwa nekusatariswa kwesimba uye mitsara yepasi kunokanganisa kushanda kwechigadzirwa, uye dzimwe nguva kunokanganisa kubudirira kwechigadzirwa.Nokudaro, wiring yemagetsi uye mitsara yepasi inofanira kutorwa zvakakomba kuti kuderedze kukanganiswa kweruzha kunogadzirwa nemagetsi uye mitsara yepasi kuti ive nechokwadi chemhando yezvigadzirwa.Kune imwe neimwe yeinjiniya inobatanidzwa mukugadzirwa kwezvigadzirwa zvemagetsi kunzwisisa zvikonzero zveruzha runogadzirwa pakati pevhu uye tambo dzemagetsi.Iye zvino kungoderedza rudzi rwekudzvinyirira kweruzha kuti utaure: iyo inonyatsozivikanwa iri mumagetsi emagetsi, pakati pepasi mutsara uye decoupling capacitors.Edza kuwedzera magetsi emagetsi, upamhi hwemutsara wepasi, zviri nani kupemha kupfuura tambo yemagetsi, hukama hwavo ndehwe: mutsara wepasi> tambo yemagetsi> mutsara wechiratidzo, kazhinji chiratidzo chemutsara wehupamhi: 0.2 ~ 0.3mm, zvakanyanya nehupamhi hwakatsetseka kusvika 0.05 ~ 0.07mm, tambo yemagetsi ye 1.2 ~ 2.5 mm padhijitari redunhu PCB inowanikwa yakafara pasi waya kuti iite dunhu, kureva kuti, inoumba network yepasi yekushandisa (analogi wedunhu re (analogine yedunhu haigone kushandiswa nenzira iyi) ine nzvimbo yakakura yemhangura layer yepasi, mune yakadhindwa redunhu bhodhi harishandiswe munzvimbo yakabatana pasi sepasi.Kana kuita multilayer board, magetsi ekupa, pasi imwe neimwe inotora layer.
2. digitaalinen matunhu uye analoginen circuits for common ground processing
Mazuva ano, maPCB mazhinji haasisiri dunhu-rinoshanda, asi musanganiswa wedhijitari uye analog maseketi.Nokudaro, mu wiring uchada kufunga nezve dambudziko rekupindirana pakati pavo, kunyanya kupindira kweruzha pasi.Digital matunhu akakwira frequency, analogi maseketi anonzwisa tsitsi, kune mitsetse yechiratidzo, mitsetse yakakwira-frequency siginecha kure sezvinobvira kubva kune inonzwisisika analogi yedunhu zvishandiso, yepasi, iyo PCB yese kune nyika yekunze chete makutano, saka PCB inofanirwa kuve kugadzirwa mukati digitaalinen uye analoginen zvakajairika pasi, uye bhodhi chaizvoizvo akaparadzaniswa kubva digitaalinen uye analoginen pasi ivo havana kubatana kune mumwe, chete muPCB uye kunze nyika kubatana The interface pakati PCB uye kunze kwenyika.Digital ground uye analog ground ine pfupi yekubatanidza, ndapota cherechedza kuti pane imwe chete yekubatanidza nzvimbo.Iko hakuna zvakare yakajairika paPCB, iyo inotemerwa neiyo system dhizaini.
3. mitsetse yechiratidzo yakaiswa pamagetsi (pasi) layer
In multilayer akadhindwa redunhu bhodhi wiring, nokuda chiratidzo mutsetse layer haina kupera jira mutsara akasiyiwa haana zvakawanda, uye wobva wawedzera mamwe akaturikidzana kuchaita tsvina kuchawedzerawo imwe uwandu basa kugadzirwa, mutengo wakawedzera zvakakodzera, kuitira kugadzirisa kupokana uku, unogona kufunga nezve wiring pamagetsi (pasi) layer.Kufunga kwekutanga kunofanira kunge kuri kushandisa tambo yemagetsi, inoteverwa neyepasi pasi.Nokuti zvakanakisisa kuchengetedza kutendeseka kwepasi pasi.
4. Kubata kwekubatanidza makumbo mumagetsi makuru-nzvimbo
Munzvimbo yakakura-yepasi (yemagetsi), inowanzoshandiswa zvikamu zvegumbo uye kubatana kwayo, kugadzirisa kwegumbo rekubatanidza kunoda kunyatsofungisisa, maererano nekushanda kwemagetsi, padhi yechikamu chegumbo uye mhangura yemhangura yakazara kubatana kwakanaka, asi gungano rewelding rezvikamu pane mamwe makomba asingafadzi akadai se: ① welding inoda maheater ane simba guru.② nyore kukonzera nhema solder pfungwa.Saka funga nezvekushanda kwemagetsi uye hurongwa hunodiwa, hwakagadzirwa nemuchinjikwa maruva mapedhi, anonzi thermal isolation inowanzozivikanwa semapedhi anopisa, kuitira kuti mukana wenhema solder pfungwa nekuda kwekunyanya kupisa kwekupisa mumuchinjikwa-chikamu panguva yekuputika kunoderedzwa zvikuru.Multi-layer board of the grounding (pasi) layer gumbo rekurapa kwakafanana.
5. Basa rezvirongwa zvetiweki mune wiring
Mune akawanda maCAD masisitimu, wiring anobva pane sarudzo yetiweki system.Iyo grid yakanyanyisa, nzira yakawedzera, asi danho rakanyanya kudiki, uye huwandu hwe data mundima yemufananidzo hwakakura kwazvo, izvo zvisingadzivisiki zvine zvakakwirira zvinodiwa zvekuchengetedza nzvimbo yemidziyo, uye zvakare ine simba guru. pakumhanya kwekombuta yezvigadzirwa zvemagetsi zvemhando yekombuta.Uye imwe yenzira haina basa, senge padhi inogarwa nechikamu gumbo kana negomba rekuisa, yakamisa maburi avo akagarwa ne.Iyo grid ishoma, yakawandisa kusvika kune jira kuburikidza nehuwandu hwekukanganisa kukuru.Saka panofanira kunge paine inonzwisisika grid system yekutsigira iyo wiring maitiro.Chinhambwe chiri pakati pemakumbo maviri ezvimiro zvakajairwa i0.1 inch (2.54 mm), saka hwaro hwegridi system inowanzoiswa pa 0.1 inch (2.54 mm) kana kuti integer multiple isingasviki 0.1 inch, se: 0.05 inch. , 0.025 inch, 0.02 inch, nezvimwewo.
6. Dhizaini Rule Tarisa (DRC)
Mushure mekunge dhizaini yewaya yapedzwa, zvinodikanwa kunyatso tarisisa kana iyo wiring dhizaini inoenderana nemitemo yakatarwa nemugadziri, uye zvakare kusimbisa kana iyo mitemo yakatarwa inosangana nezvinodiwa zvekugadzirwa kweiyo yakadhindwa redunhu bhodhi, kazhinji kutarisa zvinotevera zvinhu: mutsara uye mutsara, mutsara uye chikamu padhi, mutsara uye kuburikidza-gomba, chikamu padhi uye kuburikidza-gomba, kana kureba pakati pe-buri uye kuburikidza-gomba kunonzwisisika uye kana inosangana nezvinodiwa zvekugadzira.Iko hupamhi hwesimba uye mitsara yepasi yakakodzera, uye pane kubatanidza kwakasimba (low wave impedance) pakati pesimba uye mitsara yepasi?Kuchine nzvimbo muPCB uko mutsetse wepasi unogona kukwidziridzwa.Ndiwo matanho akanakisa anotorwa kune akakosha masaini mitsara, senge ipfupi kureba, kuwedzera mitsara yekudzivirira, uye mitsetse yekupinza uye yekubuda yakaparadzaniswa zvakajeka.Kunyangwe iyo analogi uye yedhijitari yedunhu zvikamu zvine yavo yakaparadzana pasi mitsetse.Kunyangwe iwo magiraidhi (semuenzaniso ma icons, matsamba ezvinyorwa) anowedzerwa gare gare kuPCB anogona kukonzera masaini mapfupi.Kugadziriswa kwemamwe mitsara isingadikanwi.Pane mutsetse wekuita wakawedzerwa kuPCB?Ko iyo solder inopikisa inosangana nezvinodiwa zvekugadzirwa kwemaitiro, hukuru hweiyo solder kuramba yakakodzera, uye iwo mavara emhando akatsikirirwa pamapedhi emudziyo kuti asakanganisa kunaka kwekuiswa kwemagetsi.Iyo yekunze furemu kumucheto kwesimba repasi layer mu multilayer board yakaderedzwa, senge simba repasi pasi remhangura foil rakafumurwa kunze kwebhodhi rinowanzoita pfupi.Overview Chinangwa chegwaro iri ndechekutsanangura kushandiswa kwePADS yakadhindwa yedunhu bhodhi dhizaini software PowerPCB yeakadhindwa redunhu bhodhi dhizaini maitiro uye zvimwe zvinofungwa neboka rinoshanda revagadziri kuti vape madhizaini ekugadzira kufambisa kutaurirana pakati pevagadziri uye mutual cheki.
Nguva yekutumira: Jun-16-2022