Mutengo wePCB Pachikwere Inch: Chii Chinosimudzira Mutengo wePCB uye Maitiro Ekuuderedza

"Mutengo pa square inch" ndiwo muyero wevatengi vanoedza kuyera mutengo wePCB — asi mhinduro yechokwadi ndeyekuti nzvimbo yacho chimwe chezvinhu zvakawanda, uye bhodhi diki, rakaomarara rinogona kudhura zvakanyanya pa square inch pane hombe, iri nyore. Kunzwisisa chinonyatsoita kuti mutengo utengwe kunokubatsira kugadzira mutengo uye kuwana mitengo chaiyo. Gwaro iri rinopa ruzivo rwekuti chii chinosarudza mutengo wePCB, nei nhamba dze square inch dzichitsausa, kuti mitengo yeprototype nevhoriyamu inosiyana sei, maitiro ekuderedza mutengo, uye kuti Highleap Electronics inodudza sei zvakajeka.

1. Chii chinosarudza mutengo wePCB?

Mutengo wePCB unoenderana nehukuru hwebhodhi, huwandu hwema layer, zvinhu, huremu hwemhangura, saizi shoma ye trace/nzvimbo uye maburi, kupedzisa kwe surface, zvinhu zvakakosha, uye — pamusoro pezvose — huwandu. Hapana kana imwe chete inoronga mutengo; zvinosanganiswa, uye shanduko mune chero ipi zvayo inogona kufambisa mutengo zvakanyanya. Zvinhu zvikuru zvinokurudzira:

Huwandu ndicho chinhu chikuru chinobatsira nekuti mari yakawanda yePCB igadziriro yakatarwa — maturusi, mafirimu, uye kugadzirira mapaneru — izvo zvinopararira muhurongwa hwese. Zvinhu zvakafanana zvinoonekwa pese paunotarisa mutengo webhodhi redunhu rakagadziriswa , uye zvivakwa zvakaoma zvakaita seHDI zvine mutengo wazvo, sezvinoonekwa mumutengo wePCB weHDI . Mitengo yezvinhu inofambiranawo nemusika, kusanganisira mitengo yemhangura.

2. Sei "mutengo pa sikweya inch" uchigona kukunyengera

Mutengo pa square inch unotsausa nekuti unobata nzvimbo chete uchiregeredza huwandu hwe layer, kuoma kwezvinhu, zvinhu, kupedzisa, uye huwandu - saka bhodhi diki, rakakora, rine layer yakawanda rinogona kudhura zvakapetwa kakawanda pa square inch pane hombe, yakapfava ine layer mbiri. Mabhodhi maviri ane nzvimbo yakafanana anogona kuva nemitengo yakasiyana zvikuru, zvinoreva kuti nhamba imwe chete pa square inch haigone kushandiswa mumagadzirirwo akasiyana.

Chiyero ichi chinovanzawo mhedzisiro yemutengo wakatarwa: nekuti setup inopararira pamusoro pepaneru uye kurongeka, mutengo wepa-square-inch wekushandisa prototype diki wakakwira zvakanyanya kupfuura bhodhi rimwe chete muhuwandu, kunyangwe dhizaini yacho isina kuchinja. Pa-square-inch inogona kuva ongororo isina musoro kana uchienzanisa mabhodhi akafanana nehuwandu hwakaenzana, asi haifanirwe kutsiva mutengo chaiwo zvichibva pane yako chaiyo stackup, maficha, uye saizi yeodha. Kuitora semutengo wakatarwa kunotungamira kubhajeti kunoshamisa panguva iyo kuoma kana huwandu hunochinja.

3. Mutengo wePCB prototype vs vhoriyamu: nei huwandu huchichinja zvese

MaPCB prototypes ane mutengo wakakwira payuniti nekuti fixed setup inopararira pamabhodhi mashoma chete, nepo vhoriyamu yekugadzira inoderedza mutengo weyuniti zvakanyanya sezvo setup imwe chete ichideredzwa mumayuniti akawanda. Ndosaka quote yemabhodhi mashanu nequote yemayuniti mashanu edhizaini imwe chete zvichitaridzika zvakasiyana pabhodhi rega rega. Dynamic:

• Zviratidzo takura mari yese yekushandisa nekugadzira mabhodhi akawanda, saka rimwe nerimwe rinodhura — asi ndiyo nzira chaiyo yekusimbisa dhizaini nekukurumidza, sezvakaita ne muenzaniso PCB kumhanya.
• Kugadzirwa kwevhoriyamu inoparadzira kugadzika muzviuru zvemayuniti uye inovandudza mashandisirwo emapaneli, saka mutengo wepabhodhi rimwe nerimwe unodzikira zvakanyanya, inova ndiyo nzvimbo ye low-volume kuburikidza nekugadzira zvinhu zvakawanda.

Zvinoreva kuti zvigadzirwa zvemhando yepamusoro nekugadzira zvinhu zvakasiyana uye kwete kutsanangura kuti zvigadzirwa zvako zvinogadzirwa sei. Kuziva huwandu hwezvigadzirwa zvako kunoitawo kuti mugadziri akupe mazano ekugadzira zvinhu pamadziro uye kusarudza magadzirirwo azvo zvinoderedza mari yekugadzira usati wazvipira.

4. Maitiro ekuderedza mutengo wePCB pasina kukuvadza mhando

Unoderedza mutengo wePCB nekushandisa zvinhu zvakajairwa uye magadzirirwo, uchichengetedza huwandu hwema layer uye saizi dzezvinhu zviri mukati kuti zvisave zvakanyanya kupfuura zvinodiwa, uchigadzirisa bhodhi kuti riite zvakanaka, uye uchiodha huwandu hwakawanda parinokwana - kwete nekucheka-cheka mhando. Mari yakawanda inochengetedzwa inobva musarudzo dzemagadzirirwo uye nzira dzekuodha, dzinoitwa usati wagadzira. Zvishandiso zvinoshanda:

• Shandisa zviyero zvakajairwa. Standard FR-4, huremu hwemhangura hwakajairika, uye kupedzisa kwakajairika kunodhura zvishoma pane sarudzo dzakagadzirwa kana dhizaini isingazvidi.
• Kuomarara kwehukuru hwerudyi. Kushomeka kwema layer nehukuru hwema features mukati me standard potential hakudi mari ye premiums; bhadharai chete HDI, blind vias, kana tight tolerances kana zvichidikanwa.
• Gadzira paneli zvinobudirira. Kugona panelization inokwana mabhodhi akawanda papaneru imwe neimwe, zvichideredza mutengo wepabhodhi imwe neimwe uye zvichivandudza kufambira mberi kwekugadzira.
• Unganidza huwandu. Kuraira mayuniti akawanda, kana kusanganisa marun, kunoparadzira gadziriro yakatarwa mberi.

Danho rimwe chete rinonyanya kushanda ongororo yekugona kugadzira zvinhu usati wagadzira, iyo inoratidza maficha uye kushivirira zvinhu zvinodhura nekukurumidza. Kuzviongorora kuburikidza neongororo yekugona kugadzira zvinhu zvinodhura kunoshandura zvinhu zvisingatarisirwi zvinodhura kuita shanduko dzemagadzirirwo akachipa - zviri nani pane kuzviwana mushure mekunge maturusi apera.

5. Mutengo wePCB vs PCBA: bhodhi risina chinhu chikamu charo chete

PCB isina chinhu inowanzova chikamu chidiki chemutengo wekugadzira wapera — kana wangowedzera zvikamu, basa rekugadzira, uye kuyedza, bhodhi rine vanhu (PCBA) rinogona kudhura zvakapetwa kakawanda kupfuura bhodhi risina chinhu, uye zvikamu zvinowanzova chinhu chikuru pane chimwe chete. Kungotarisa pamutengo webhodhi risina chinhu kunogona kukanganisa mari yakawanda.

Mutengo wekuunganidza unosanganisira zvinhu zvacho (zvinowanzo shandiswa zvakanyanya), maitiro eSMT nekugadzira zvinhu kuburikidza neburi, kuongorora nekuyedza, uye chero nzira yakakosha yekubata kana kuronga. Nzira yekuwana zvinhu, sarudzo dzeBOM, uye chiyero chekuyedza zvinogona kufambisa huwandu hwese kupfuura shanduko diki mumutengo usina bhodhi. Ndosaka mutengo wakazara wekugadzira zvinhu - bhodhi rinofukidza, zvikamu, kuvaka, uye kuyedza pamwe chete - zvichipa mufananidzo wechokwadi wemutengo wepasi pane mufananidzo usina bhodhi chete, uye nei sarudzo dzekugadzira dzichirerutsira kuunganidza nekuyedza kubhadhara muodha yese.

6. Mashandisirwo anoitwa mitengo yeHighleap paPCB nePCBA

Highleap inopa mutengo wePCB zvichienderana nezvaunoda chaizvo — stackup, zvinhu, finish, features, uye order size — pane kuti mutengo uratidze bhodhi chairo pane fungidziro. Kutumira data rakazara kunoita kuti quote ive yakarurama kekutanga, izvo zvinokurumidza uye zvinodzivirira njodzi idzo RFQ dzisina kujeka dzinokokwa.

Nekuti huwandu uye kuomarara kwedhizaini kunodhura zvakanyanya, Highleap inogona kukuudza kuti zvigadziriso zvakajairwa, mapanelo, kana magadzirirwo zvinoderedza mutengo, uye wobva wataura nezvekugadzirwa kwePCB isina chinhu uye kubatanidzwa kwakazara kuitira kuti uone mutengo chaiwo wekugadzira. Ongororo yekugadzira isati yagadzirwa inoratidza maficha ekutyaira usati washandisa maturusi. Paunokumbira mutengo, sanganisira saizi yebhodhi, huwandu hwema layer, zvinhu uye kupedzisa, maficha akanakisa, huwandu hwaunoda, uye kana uchida kubatanidzwa, kuitira kuti nhamba yacho ive chaiyo uye sarudzo dzekuderedza mutengo dzive pachena.

7. Mibvunzo Inowanzo bvunzwa pamusoro pemutengo wePCB

PCB inodhura marii pa sikweya inch?

Hapana mutero wakatarwa — zvinoenderana nezvikamu, zvinhu, magadzirirwo, kupedzisa, uye huwandu. Bhodhi rakareruka rine zvikamu zviviri muhukuru haridhuri pa sikweya inch, nepo bhodhi diki, rakakora rine zvikamu zvakawanda rinogona kudhura zvakapetwa kakawanda, saka mutengo chaiwo unodiwa.

Sei PCB yangu diki ichidhura kudaro?

Nekuti mari yekugadzirisa yakatarwa — maturusi, mafirimu, kugadzirira mapaneru — inopararira pamabhodhi mashoma, uye kuomarara (machira, zvinhu zvakanaka, kupedzisa kwakakosha) kunowedzera mari yepamusoro pasinei nehukuru. Saka maprototype madiki ane mutengo wakakwira pabhodhi rimwe nerimwe kunyangwe dhizaini iri nyore.

Ko PCB yakakura inogara ichidhura zvakanyanya here?

Nzvimbo yakawanda inoshandisa zvinhu zvakawanda uye inodhura zvakanyanya, asi huwandu hwema layer, kuomarara, uye huwandu zvinowanzova zvakakosha. Bhodhi hombe rinogona kudhura zvishoma pa sikweya inch pane diki rakaomarara, saka saizi yega haisarudze mutengo.

Ndeipi PCB surface finish yakachipa?

HASL inowanzo kuve kupedzisa kwakachipa, nepo ENIG nekupedzisa kwakasarudzika kuchidhura zvakanyanya asi zvichipa kupfava nezvimwe zvakanaka. Kusarudza kupedzisa kwaunoda dhizaini yako, pane kupedzisa kwepamusoro-soro, ndiko kunodzora mutengo.

Ndingawana sei PCB yakachipa pasina kudzikisa hunhu?

Shandisa zvinhu zvakajairwa uye magadzirirwo azvo, chengeta zvidimbu nehukuru hwezvinhu zviri mukati mehunhu hwakajairika, gadzira mapaneru zvinobudirira, uye rongedza zvakawanda pazvinokodzera. Ongororo yekugadzirwa kwezvinhu usati wagadzira zvinhu zvinodhura zvakanyanya inobatsira kutanga.

PCB kana zvikamu zvacho zvinodhura here pakugadzira?

Mumabhodhi akawanda akaunganidzwa, zvikamu zvinowanzova mutengo mukuru wechinhu chimwe chete, uye bhodhi rakaiswa vanhu rinogona kudhura kakawanda kupfuura PCB isina chinhu kana zvikamu, gungano, uye bvunzo zvabatanidzwa. Ndokusaka mutengo wechinhu chose chakaunganidzwa uchikosha kupfuura mutengo webhodhi risina chinhu.