Mhete dzePCB Annular: Gwaro rekugadzira

Mhete dzePCB dzinonzi annular rings idzo nzvimbo dzemhangura dzinogara dzakatenderedza makomba akaboorwa. Dzinokosha pamakomba akaboorwa, mavia, uye malead ezvikamu nekuti dzinopa nzvimbo yekubatanidza magetsi uye dzinoshivirira shanduko dzakajairika dzekugadzira pakuboorwa nekunyoreswa.

Dhizaini yerin'i yeAnnular inofanira kunge yakavakirwa paburi rakapedzwa, geometry yepad, kunyoreswa kwelayer, uye kugona kugadzira kwakabvumiranwa pabasa racho.

Zviri mukati

• Chii chinonzi PCB Annular Ring?
• Maitiro Ekuverenga Mhete Yegore
• Nei Mhete Dzepadenga Dzichikosha
• Matambudziko Anowanzoitwa neAnnular Ring
• Kushivirira kweIPC nekugadzira
• Vias uye Makomba eChikamu
• Mapedhi eTeardrop neMhete dzeAnnular
• Kuongororwa kweDFM kweAnnular Rings
• Kuongorora uye Kuedzwa
• Ongororo yeDhizaini yeAnnular Ring neHighleap

Chii chinonzi PCB Annular Ring?

Kune gomba rakaputirwa, rin'i ye annular ivhu remhangura rakatenderedza gomba rakapedzwa. Rinotsigira kuenderera mberi kwe plating uye rinopa nzvimbo inosonererwa kana kubatana. Pama layer emukati, kubata kwakakwana kunodiwawo kuchengetedza kubatana kwakavimbika kwebhare mushure mekuboora.

Mhete inodiwa inosiyana zvichienderana nekirasi yebhodhi, rudzi rwechikamu, huwandu hwezvinhu, uye kana gomba racho riri via, lead yechikamu, chinhu chekushandisa, kana chimiro chakasarudzika.

Maitiro Ekuverenga Mhete Yegore

Kuverenga kwakapfava kunonzi annular ring = (pad diameter – finished hole diameter) / 2. Kukosha kwekugadzira kunofanirwawo kubvumira drill wander, kushivirira kunyoresa, plating, uye chero zvinodiwa nevatengi.

Shandisa gomba rakapedzwa mukuverenga kana riri iro kukosha kwekudhirowa kwakadzorwa. Simbisa kana mugadziri achida bhora rakakura kuti awane mhedzisiro iyoyo mushure mekuputira.

Nei Mhete Dzepadenga Dzichikosha

Mhete isina kukura inowedzera njodzi yekubuda kwemvura, kubatwa kwemaplati kushoma, majoini asina simba ekusonesa, uye kurasikirwa negoho. Kukanganisa uku kunogona kuva kukuru pamabhodhi akakora ane machira akawanda uko kushivirira kwekunyora kwemukati kunodya chikamu chikuru chevhu riripo.

Kusarudza padhi rakakura zvishoma pakubvumira nzira yekufambisa zvinhu kunogona kuvandudza mukana wekugadzira zvinhu uye kuderedza njodzi isingakoshi.

Matambudziko Anowanzoitwa neAnnular Ring

Matambudziko anowanzo sanganisira kusanyoresa zvakanaka kwedhiraivha kuenda kupad, kusakwana kwekubata kwemukati mejira, mapedhi akaderedzwa nekushandisa nzira yekufambisa kana geometry yekupisa, uye saizi yevhu yakakopwa kubva kumutemo wedhizaini usingaenderane. Mutemo weCAD wakarurama unogona kusakodzera kirasi chaiyo ye stack-up neboard.

Ongorora nzvimbo dzisingabvumirwi dzakadai sedzinobatanidza, maburi anodzvanywa, nzvimbo dzine mhangura yakawanda, uye nzvimbo dzinobuda zvakanaka zvakasiyana.

Kushivirira kweIPC nekugadzira

Magwaro eIPC uye zvinodiwa nevatengi zvinotsanangura pfungwa dzekugamuchira, asi kirasi yakanangwa uye zvinodiwa zvechibvumirano zvinofanirwa kusimbiswa kune chigadzirwa chimwe nechimwe. Kugona kugadzira, saizi yekuboorera, ukobvu hwebhodhi, huwandu hwezvikamu, uye kunyoresa zvese zvinopesvedzera zvinodiwa zvevhu.

Shandisa mitemo yekugadzirwa kwemugadziri wezvinhu zvinodiwa uye itore sechikamu chepakeji yekugadzira yakaburitswa.

Vias uye Makomba eChikamu

Ma "Vias" anogona kushandisa ma "pads" madiki kuchengetedza huwandu hwe "routing density", nepo maburi e "component" angada nzvimbo yakakura yekusonera uye simba re "mechanical". Kubatanidza "high-current" kana "mechanical" kunoda kutariswa zvakanyanya pahukuru hwe "pad", saizi ye "buri", "plating", uye kusununguka kwekumanikidzwa.

Usaise chinhu chimwe chete chinotenderera chakatenderedzwa muchimiro che annular ring pamhando dzese dzemaburi.

Mapedhi eTeardrop neMhete dzeAnnular

Madonhwe emisodzi anotambanudza zviri nyore kubatana pakati pechinhu chinodonhedzwa nepedhi. Anogona kuwedzera kuchengetwa kwemhangura pedyo negomba rakaboorwa uye kuwedzera muganhu munzvimbo dzakasarudzwa, asi haatsivi rin'i yeannular yakakura zvakanaka kana kuti kutsungirira kwakakodzera kwekuboorwa.

Zvishandise pazvinokodzera nzira yekugadzira nekugadzira, wobva waona kuti geometry yacho yakachena uye haikonzeri kukanganiswa kwenzvimbo.

Kuongororwa kweDFM kweAnnular Rings

Ongororo yeDFM inofanira kuongorora saizi dzemaburi akapedzwa, mapedhi akaunganidzwa, mafaira ekuboorera, kunyoreswa kwezvikamu, kunze kweannular-ring, uye kubviswa kwemhando dzese dzemaburi. Ongororo iyi inonyanya kukosha mushure mekushandurwa kweraibhurari yetsoka, kugadziriswa kwezvikamu, kana kugadziriswa kwepaneru.

Kugadzirisa marginal pads usati washandisa maturusi kunodzivirira kugadzirisa patsva kunodhura uye kunogona kuwedzera goho rekutanga.

Kuongorora uye Kuedzwa

Kuongororwa kwekugadzira kunogona kusanganisira kuongororwa kwemaziso otomatiki, X-ray kana microsection analysis pazvinenge zvakakodzera, uye kuyedzwa kwemagetsi kuti kuenderere mberi uye kupatsanurwa. Nzira iyi inofanira kusarudzwa kubva pane zvinodikanwa zvine njodzi uye kugamuchirwa pane kushandiswa senzira yekutsiva mitemo yekugadzira ruzha.

Nyora chero maburi akakosha kana makuponi anoda kusimbiswazve.

Ongororo yeDhizaini yeAnnular Ring neHighleap

Highleap Electronics inogona kuongorora mitemo ye annular-ring, kuchera data, kuunganidzwa kwezvinhu, uye zvinodiwa zvemaburi akakosha isati yagadzirwa. Ruzivo rwakajeka nezvekirasi yechigadzirwa uye zvinhu zvakakosha zvinobatsira kutarisa ongororo panjodzi chaiyo yekugadzira.

Kuti muwane ongororo yekugadzirwa kwezvinhu, kumbirai mutengo wePCB une mafaira eGerber, mafaira ekudhirowa, mifananidzo, uye manotsi ekugadzira.