Chii chinonzi kuburikidza-gomba pcb uye nei ichikosha pane yakadhindwa redunhu bhodhi? A PCB inodaidza kuburikidza-maburi kana zvibhorani kuti ubatanidze matanda ayo. Kunzwisisa zviyero zvepakati nepakati-maburi zvinoshandiswa nevakagadziri vePCB zvinogona kukubatsira kugadzira mabhodhi kuti usangane zvakajairika zvidiki kukura.

Yakadzika kuburikidza nehukuru saizi

Vagadziri vePCBB vane yavo seti yeyakaenzana maburi masize kusarudza kubva kana kuchera maburi, asi ivo vanogona kazhinji kushandisa chero akajairwa gomba saizi. Kazhinji, vagadziri vePCB vanogona kuita hupamhi hwePCB kuburikidza nemakomba madiki se0.15 mm, zvichienzaniswa neyakajairwa saizi ye0.6 mm.

Pcb kuburikidza-mugomba saizi zvinodiwa

Ichi chidzidzo chakadzama chehukuru hunodiwa.

Pcb kuburikidza buri saizi

Hukuru hwePBB kuburikidza negomba hunogona kusiyana zvichienderana nenzvimbo yaro, mashandisirwo, uye zvimwe zvinhu, ndosaka mugadziri wega wePCB achipa hukuru hwePBB hukuru. Vazhinji vagadziri vanogona kuita maburi madiki se0.15 mm kana makomba mahombe e1 mm kana hombe. Paunenge uchifunga nezve saizi yegomba rinodiwa, iwe zvakare unofanirwa kufunga nezve rin’i kana pini yemhangura yakatenderedza gomba, inozoumbika.

Unoverenga sei mhete? Iyo mhete yakaringana yakaenzana neuwandu hwehupamhi hwepombi yemhangura kubvisa dhayamiti yegomba rekuboora rakakamurwa ne2, izvo zvinopa iro rig mukana wakanakisa wekurova pakati pepadhi kuti ubatanidzwe zvakakwana.

Yakadzika kuburikidza nehukuru saizi

Iko hakuna hazvo kuita chero yakajairwa pcb-kuburikidza-gomba saizi muPBB yekugadzira, seyakajairika pcb kuburikidza-gomba saizi kazhinji inosiyana kubva kugadziri kuenda kumugadziri wePCB. Nekudaro, vagadziri vazhinji vePCB vanosarudza kushandisa zvakajairika mashoma masize, ayo avanogona kureva seyakajairika pcb bit kukura. Imwe yemasayizi akajairika ndeye 0.6 mm, asi 0.2 mm uye 0.3 mm inowanzo shandiswa.

Type of pcb kuburikidza buri

Unogona kushandisa chiyero chega chega kuburikidza-gomba saizi kugadzira mhando dzakasiyana dzePBB kuburikidza-maburi, zvinoenderana nechuru, kuvaka, dhizaini, uye chinangwa chePCB. Iwo matatu akajairika PCB kuburikidza-gomba mhando ndeaya:

Yakapetwa nepaburi

Electroplated kuburikidza-maburi (PTH) ari kuburikidza-maburi anomhanya kuburikidza nematanho ese ePBB yekubatanidza iwo ekumusoro uye ezasi matanda. Iwe unofanirwa kuona PTH kubva kune mumwe mugumo wePCB kuenda kune imwe. PTH inogona kuvezwa kana isina-kuifukidza. Asina-kufukidzwa kuburikidza nemakomba haaitise magetsi, nepo akafukidzwa kuburikidza nemakomba akasarudzika, zvinoreva kuti vanoita magetsi munzvimbo dzese dzePCB.

Bofu bofu

Makomba mapofu anobatanidza ekunze (kumusoro kana pasi) zvidimbu zvePCBB kune imwechete kana anopfuura emukati akaturikidzana, asi usanyatsobaya bhodhi. Kuchera chaiko kwemakomba mapofu kunogona kunetsa, saka iwo anowanzo dhura kugadzira kunze kwePTH.

midzi

Makomba akadzika akadzika anogona zvakare kuwedzera mutengo wePCB nekuti iwo akaoma kugadzira. Makomba acho ari mukati mePCB yekubatanidza maturu maviri kana anopfuura emukati. Iwe haugone kuona izvo zvakavigwa pane iyo pcb yekunze yakaturikidzana.

Zvinhu zvekufunga

Pane zvinhu zvishoma zvekutarisa kana uchigadzira PCB. Kutanga, iwe unofanirwa kuziva kuti chiiko chikamu chiri muPCB dhizaini. Iyo yakasarudzika ratio ndeyePCB ukobvu inoenderana nehupamhi hwegomba kuburikidza iyo gomba, iyo inosarudzira kuvimbika kwemhangura yakanamirwa paPCB. Iyo yakakwira iyo reshiyo, zvakanyanya kuomarara kuwana yakavimbika ra, iyo inokanganisa mhando yegomba uye nzira yekupaka yaunosarudza.

Makomba akadzika kana bofu anogona kushandira yako pcb zvirinani nechikamu chegumi neshanu, nepo PTH inogona kushanda mushe nehuremu hwechiyero che15: 1. Sei iwe sarudza ukobvu pcb mhangura? Kazhinji, kuburikidza nemakomba ari muchikamu chekunze (semuenzaniso, kuburikidza nemakomba) anoda mukobvu wakakora wemhangura pane wakavigwa kuburikidza nemakomba mukati. Mhepo inoshandiswa nePCB inobatawo hukobvu hwemhangura. High voltage mafomu anowanzo kuda mukobvu pcb mhangura pane yakaderera magetsi kunyorera.

Nekuzadza chirongwa

Dzimwe nguva PCB kuburikidza-maburi inoda kuzadzwa, semuenzaniso kudzora njodzi yekuteya mweya kana kuwedzera magetsi kuitisa. Dzimwe nzira dzakajairika dzekuzadza nemakomba dzinosanganisira:

Kuburikidza netende

Iyo tende-yepakati-gomba inogadzira iyo solder chipingamupinyi chira pamusoro pePCB kuburikidza-gomba pane kuzadza gomba nezvinhu. Iyi inogona kuve inokurumidza, yakapusa uye isingadhuri sarudzo yekuvhara maburi-epakati, asi tende-tambo-kuburikidza-maburi anogona kuvhurika nekufamba kwenguva.

Nekuvharira

Iyo yekupfuura-gomba yekucheka maitiro inozadza gomba nezvinhu zvisina-kuitisa uye nekuisimbisa nemask. Kupfuura-gomba kuvhara kunovharawo mhete uye hakugadzi kutsetseka, kupenya pamusoro.

Nekuzadza

Kupfuura-gomba kuzadza kunoshandisa resin kugadzira gomba rakazara rakazara. Kuzadza-kwegomba kuzadza kwakajairika kuburikidza-gomba kuzadza umo mugadziri anozadza iyo-yegomba ine inoitisa zvinhu, inofukidza iyo pamusoro nemhangura, uye yozochera pamusoro. Maitiro aya anogona kuendesa masaini kune dzimwe nzvimbo dzePCB.

Pcb kuburikidza mugomba yakanamirwa pamifananidzo mafomu

Vagadziri vanogona kushandisa matekinoroji akati wandei ekushandisa iyo PCB kuburikidza neyakavharwa-gira kuti vaone kushanda kwayo. Imwe nzira yakajairika ndeye kushandisa yakaderera viscosity ink iyo inovhara mukati meiyo yekupfuura-gomba kuti igadzire yakatenderera. Zvino kuburikidza neyekupisa yekupora maitiro kusunga iyo inki.

Imwe nzira is electroplating, mune iyo PCB inopinda mune yekugezera inosanganisa magetsi. Muchiitiko ichi, mhangura inovhara madziro ePCB yega yega kuburikidza nemakomba, zvichikonzera kunyangwe kukora kwechinhu chinoitisa. Iyi nzira inowanzo kuve yakareba uye inodhura pane iyo inking maitiro, asi inogona zvakare kugadzira yakanyanya kuvimbika kupfeka uye chisungo.

Sequential kuchera bofu kupora uye kwakadzika kuchera

PCBS ine mapofu maburi anogona kugadzirwa munzira mbiri. Izvi zvinogona kuitwa ne laser kuchera kana nenzira inonzi inopfuurira kuvaka kuvaka. Uchishandisa akateedzana nzira yekuvaka, mapaundi ezvikamu anogona kucherwa uye kusarudzwa pamberi pekubatanidza kunoiswa. Nekuti iwo ane maburi kumagumo ese, electroplating iri nyore kupinda mukati mekushongedzwa kwemakemikari. Iyo inobvumirawo maburi mapofu kuti agadzirwe nenzira yekuti ivo vagone kupfuura nepakati pezvikamu zvakawanda.

Iko kugona kwekubatanidza kwakakodzera kubatana, kuchera uye kuenzanisa kwakateedzana kunoita kuti zvikwanise kugadzira akawanda mapofu maburi masisitimu. Izvo zvese zvinoenderana nekuti gomba rakapofomara rinogona kupfuura nemumatanho akaturikidzana nekunze kwekunze.

Panguva imwe chete yakadzika kuchera kana kudzoreredza kuchera ndiyo nzira yekubvisa chero isingashandiswe dhiramu remhangura zvakasara kubva mugomba. Izvi zvinowanzoitika kana masaini ekumhanya-mhanya akatsauswa paanopfuura nepakati pemachubhu emhangura pakati pezvikamu zvePCB. Kana iwe ukashandisa chiratidzo cheyero mhedzisiro mukufamba kwirefu, pachave nekukanganisa kwakawanda.

Pcb factor chimiro chinotsanangurwa sechiyero cheplate ukobvu kusvika pakukora kwechibhorani. Makomba mapofu anoda kuenzana kwe1 kusvika 1 kana kupfuura.

Kana kuchera kwakadzika kuchiitwa, kudzika kwegomba kunotsanangurwa nekumisikidza maburi maviri ayo anotsanangura matanga ekutanga uye ekupedzisira kubva kudivi rebhodhi. Iyo diki dhayamita yekudzika kuchera inoverengwa neinotevera fomula:

Kukura kwekudzosa saizi = Hole / padhi saizi saizi + 2 x Dhizaini dhizaini Kudzoreredza saizi yakakura kwazvo

Pcb kudzvinyirira karukureta

Pcb kuburikidza-gomba inductance zvinoenderana nezvinhu zvakati wandei, zvinosanganisira kuburikidza-gomba saizi, saizi mhete, chimiro chiyero, uye kuchera kwakarurama. Unogona kuwana macalculator epamhepo kuti akubatsire kuverenga iyo chaiyo pcb zvinoenderana nesaizi yaunoda kushandisa.