Ukukhiqiza i-PCB yethebhulethi yokudweba yamathebhulethi epeni angabonisi
Okuqukethwe
- Lokho Okwenziwa Yi-Drawing Tablet PCB Ngempela
- Ukuzwa Kwedijithali, Ukuhlanganiswa Kwabalawuli kanye Nokulawula Umsindo
- Izinketho ze-USB, i-Bluetooth kanye namandla
- Ukuhlelwa kwe-PCB kanye Nokumisa Isisekelo Sezinto Zokusebenza Ze-elekthroniki Ezingena Ngokunemba
- Ukwakhiwa kwe-PCB Encane Ngaphandle Kokusungula I-Stack-Up Engaguquki
- Ukuhlanganiswa kwe-SMT, Izinkinobho kanye nokulawulwa kwenqubo yesixhumi
- Ukuhlolwa Kokusebenza Nokusekelwa Kokulinganisa
- Ukukhetha Umlingani Wokukhiqiza Ithebhulethi Yokudweba ye-PCB
Kulesi sihloko, i -Drawing Tablet PCB isho izinto zikagesi ezisetshenziswa kuthebhulethi noma ku-digitizer yepeni engabonisi ethumela okokufaka kwe-stylus kukhompyutha noma esikrinini esihlukile. Le ncazelo igcina ikhasi lihlukile ngokobuchwepheshe kusibonisi sepeni, esihlanganisa indlela yaso yokubonisa ebonakalayo.
Amaphilisi epeni ebhizinisi abonisa ukuthi ukuxhumana kanye namasethi ezici kuyahlukahluka: i-USB enentambo ivamile, kuyilapho amanye amamodeli engeza i-Bluetooth namabhethri. Ubuchwepheshe bepeni, ukuzwa ingcindezi kanye nezindlela zokuthola indawo nakho kuyahlukahluka kuye ngomkhiqizi, ngakho-ke umenzi we-PCB akufanele asungule ukwakheka kwe-sensor-grid eyodwa jikelele.
I-Highleap Electronics ingasekela ama-electronics epeni enziwe ngamakhasimende avela ekwakhiweni kwe-PCB ngokuhlanganiswa kwe-SMT, ukuthola, ukuhlola kanye nokuhlolwa kokuzwa/ukusebenza okuchazwe ngamakhasimende.
1. Lokho Okwenziwa Yi-Drawing Tablet PCB Ngempela
I-PCB ithola amasignali avela ku-digitizer/isakhiwo sokuzwa, icubungula isikhundla sepeni kanye nedatha ehlobene nokucindezela, iphatha izinkinobho noma okokufaka kokulawula, futhi ixhumana nomsingathi. Kuye ngomkhiqizo, izinto zikagesi zingagxila ebhodini elilodwa noma zihlukaniswe phakathi kwebhodi lokulawula eliyinhloko kanye nezakhiwo zokuzwa/zokuxhumanisa ezisatshalaliswayo.
Kulesi sihloko, ithebhulethi yokudweba isho idivayisi yokufaka ipeni engabonisi ethumela ulwazi lwesikhundla kanye nengcindezi kumphathi. Ngakho-ke umsebenzi we-PCB ukuthola izimpawu ze-stylus/digitizer, ukuzicubungula, ukuphatha izinkinobho noma izinkomba lapho zifakiwe, nokuxhumana nekhompyutha. Ukusetshenziswa kokuzwa kungahluka kuye ngomkhiqizi, ngakho-ke ingxoxo yokukhiqiza kufanele ihlale ingathathi hlangothi kwezakhiwo ngaphandle kokuthi umklamo okhishwe yikhasimende ukhomba ubuchwepheshe obuthile.
Umngcele womkhiqizo
Ungangezi isilawuli sesikhathi se-LCD/OLED, okokufaka ividiyo noma amandla okubonisa ngoba nje igama elithi “tablet” livela egameni elingukhiye. Lezo zihloko zingezesibonisi sepeni, hhayi ithebhulethi yokudweba evamile engabonisi.
Ubudlelwano obuphathekayo phakathi kwesakhiwo senzwa ne-PCB bubalulekile. Igridi yesenzwa ingaba ungqimba oluhlukile, ukugoba, ifilimu noma ukuhlanganiswa okuhlanganisiwe kuye ngomkhiqizo, futhi ukufakwa kwesixhumi, isisekelo kanye nokubhaliswa kwemishini kungathinta ukunemba. Ekubuyekezweni kwe-RFQ, umhlinzeki udinga ulwazi olwanele lwemishini ukuqonda ukuthi indawo yokuzwa, ibhodi lokulawula kanye ne-enclosure kuhambisana kanjani; i-PCBA elungile ngogesi isengahluleka ukuhlanganiswa komkhiqizo uma leyo geometry ishintsha.
Kulesi sihloko, ithebhulethi yokudweba isho idivayisi yokufaka ipeni engabonisi esetshenziswa nekhompyutha noma isikrini sangaphandle. Lowo mehluko ushintsha izinto zikagesi: i-PCB inesibopho esikhulu sokuzwa nokucubungula ulwazi lwesikhundla/ingcindezi yepeni, ukuphatha izinkinobho noma izinkomba, ukuxhumana nomsingathi kanye nokuphatha amandla. Ayidingi isikhathi sokubonisa, okokufaka kwevidiyo kanye nokwakhiwa kwamandla okukhanya kwangemuva okuchaza isibonisi sepeni.
Umkhiqizo ongokoqobo ungasebenzisa ibhodi elilodwa lokulawula elihlangene, isakhiwo esikhulu sokuzwa, ukuxhumana okuguquguqukayo noma inhlanganisela yalokhu kuye ngobuchwepheshe bokuzwa. Ngenxa yokuthi abakhiqizi basebenzisa izindlela ezahlukene zobunikazi bedijithali, umhlinzeki akufanele acabange ukuthi igridi yokuzwa iyi-PCB evamile noma ukuthi ipeni ngalinye lidinga ibhethri. Iphakheji yokukhiqiza kumele isho ukuthi yiziphi izingxenye i-Highleap ezizenzayo/ezihlanganisayo nokuthi yiziphi izingxenye zokuzwa eziyimojula enikezwa amakhasimende noma izakhiwo zobunikazi.
2. Ukuzwa Kwedijithali, Ukuhlanganiswa Kwabalawuli kanye Nokulawula Umsindo
Amaphilisi epeni adinga ukuzwa okuphindaphindwayo endaweni enkulu esebenzayo. Indlela eqondile ye-electromagnetic, capacitive noma enye yokuzwa ihlobene nepulatifomu yomkhiqizo, kodwa imiphumela yokukhiqiza i-PCB iyavumelana kabanzi: izindlela zokubhekisela ezinomsindo ophansi , isisekelo esilawulwayo , amanani ezingxenye ezizinzile kanye nokubekwa okunembile kwesixhumi.
Ukufakwa kwepeni elinembile kuncike esilinganisweni sesiginali kuya komsindo kulo lonke uchungechunge lokuzwa oluphelele. Ingaphambili lingafaka phakathi izigaba zokuvuselela, ukuphindaphinda, ukuhlunga, ukukhulisa noma ukuguqula kuye ngendlela yokuzwa eyimfihlo, kulandelwe isilawuli esakha kabusha imingcele yesikhundla kanye nepeni. Okuqukethwe kokukhiqiza kufanele kuxoxwe ngale misebenzi ngaphandle kokwenza sengathi ithebhulethi ngayinye isebenzisa ikhoyili efanayo, i-electrode noma i-topology ye-ADC.
Amawashi edijithali, abaguquli be-DC/DC , izixhumi ze-USB kanye nemisakazo engenantambo engakhethayo ingangenisa umsindo endaweni yokuzwa. Ukuhlelwa okukhishwe kungasebenzisa ukuhlukaniswa kokubekwa, isu lomhlabathi, ukuhlunga kanye nemibandela yokuvikela ukuphatha lokhu kusebenzisana. Ukukhiqiza kufanele kulondoloze lezo zici kunokuzilula ngaphandle kwemvume yobunjiniyela.
Izingozi zokukhiqiza ezihlobene nokuzwa
| Risk | Umphumela ongaba khona | Ukulawula ukukhiqiza |
|---|---|---|
| Inani elingalungile elingasebenzi noma enye indlela engavunyelwe | Ishintsha indlela yokuziphatha yokuthola inzuzo/yokuhlunga/yokuzwa | Khiya ama-MPN abalulekile kanye nemithetho yokushintsha. |
| Isixhumi sivaliwe noma siguquliwe | Impendulo yendawo esebenzayo eyenzeka ngezikhathi ezithile noma engekho | Sebenzisa umdwebo wokuhlanganisa kanye nokuhlola komshini kokuqala. |
| Isici somhlaba/sokubuyisela sishintshiwe ku-CAM | Umsindo noma ukutholwa okungazinzile | Khulisa ukuhlelwa kwethusi okuthinta izindawo zokuzwa. |
| Izinsalela ezizungeze ama-node ane-impedance ephezulu | Ukuvuza noma ukukhukhuleka | Lawula ukuhlanzeka kwenqubo ngokwesidingo sephrojekthi. |
Ukulawulwa komsindo kuqala ngokuhlelwa kodwa kuyaqhubeka kuze kube yilapho kuhlanganiswa. I-geometry yokubuyiselwa komhlaba, izici zokuvikela, isikhala esivela kubalawuli bokushintshana namawashi edijithali, ukubekezelelana kwezingxenye kanye nobuqotho besixhumi konke kuthinta ukuphindaphindeka. Uma umkhiqizo uhlanganisa umsakazo osebenzayo ongenantambo noma isekethe yokushaja, uhlelo lwe-NPI kufanele lufake ukuhlolwa kokuphazamiseka ngesikhathi sokusebenza kwepeni. Lokhu kuwusizo kakhulu kunolimi olujwayelekile 'lokulawula i-EMI' ngoba luxhumanisa okuguquguqukayo kwefektri nokusebenza umsebenzisi akuqaphelayo: ukuzinza kwesikhombisi kanye nokuvumelana kokufaka.
Izinhlelo zokufaka ngokunemba ziguqula izinguquko ezincane kakhulu zomzimba zibe ama-coordinates edijithali azinzile, ngakho-ke umsindo nokuphindaphindeka kungabalulekile ngaphezu komthamo wamanje oluhlaza. I-front end eqondile ye-analog, indlela yokuvuselela kanye ne-geometry yenzwa kuyahlukahluka ngomkhiqizo. Ngakho-ke ukukhiqiza kufanele kugxile kulokho okungalawulwa: ukubekezelelana kwezingxenye, ukuzinza kokubhekisela, ukusekelwa, ubuqotho besixhumi, ukusetshenziswa kwesihlangu kanye nokubekwa okunembile kwezingxenye ezihlobene nokuzwa.
Ukushintshaniswa komthombo okubonakala kuncane kungashintsha ukuzwela. I-capacitor dielectric, ukubekezelelana/umsindo we-resistor, izici ze-oscillator noma ukuziphatha kwe-analog-switch kungathinta uchungechunge lokuzwa ngisho noma amanani ajwayelekile afana. Izingxenye ze-analog ezibalulekile kanye nesikhathi kufanele zibe nabakhiqizi abavunyelwe noma ezinye ezicacile. Ngesikhathi se-NPI, ubunjiniyela bungahlobanisa imiphumela yokusebenza/yokulinganisa nezingxenye zezingxenye ukuze kutholakale ukuthi yimaphi amapharamitha azwela ngempela ngaphambi kokuba ukuthengwa kwandise i-AVL.
Umngcele wokunemba
Ungashicileli noma ukhiqize ngendlela yokuzwa ecatshangelwe. Phatha inqubo yokuhlelwa kwekhasimende, isikhombikubona senzwa kanye nenqubo yokulinganisa njengomthombo weqiniso; ifektri ilawula ukuphindaphindeka kokuhlanganiswa okuzungeze leyo sakhiwo.
3. Izinketho ze-USB, i-Bluetooth kanye namandla
Ithebhulethi yokudweba enentambo ingasebenza futhi ixhunywe nge-USB. Izinguqulo ezingenantambo zingangeza i-Bluetooth , ibhethri, isekethe yokushaja kanye nokulawula isimo samandla. Lezi izinketho zokuklama ezingakhethwa, futhi izihloko kufanele zisebenzise ukuthi “lapho kufanele khona” kunokuba zisho ukuthi yonke ithebhulethi yokudweba ifaka ihadiwe engenantambo.
Izinguqulo ezinezintambo nezingenantambo zingabelana ngesakhiwo sokuzwa okuyinhloko ngenkathi zinamandla ahlukene kakhulu nezidingo ze-BOM. Imodeli ye-USB kuphela ingase idonse ku-host futhi ingadingi uhlelo olungaphansi kwebhethri; imodeli ye-Bluetooth ingangeza ibhethri, ishaja, isilawuli kanye nomsakazo. Umndeni wakwa-Wacom we-Intuos uyisibonelo salokhu kuhlukahluka, yingakho lesi sihloko kufanele sisebenzise 'lapho kufanele khona' kunokusikisela ukuthi i-Bluetooth namabhethri ayizici zethebhulethi yokudweba esezingeni eliphezulu.
Unyawo lwe-USB connector, i-shell grounding, ukuvikelwa kwe-ESD kanye ne-enclosure clearance kufanele kubuyekezwe ngomshini ngoba umthwalo wekhebula udluliselwa ngqo ebhodini. Kumamodeli angenantambo, ukugcinwa kwe-antenna kanye ne-polarity ye-battery connector kufanele kufakwe ku-DFM.
Ngokombono wokukhiqiza, ukuhlolwa kokuxhumana kufanele kufake phakathi ukubalwa noma ukudluliswa kwedatha okuyisisekelo kwesixhumi esibonakalayo esinezintambo kanye nokuhlolwa kokubhanqa/kokuxhumana kwezinhlobo ezingenantambo lapho ikhasimende linikeza inqubo. Imisebenzi yokushaja ibhethri kanye nokuvikela kufanele ihlolwe kuphela ku-SKU efanele. Ukugcina lawo magatsha okuhlola eboshwe kuhlobo lwe-BOM kuvimbela ukwehluleka okuvamile kwe-multi-SKU: ukulayisha ihadiwe efanele ngephrofayili yokuhlola yokukhiqiza engalungile.
Ithebhulethi yokudweba enentambo ingase inikwe amandla futhi ixhunywe nge-USB, kuyilapho amamodeli angenantambo engangeza i-Bluetooth, ibhethri, ukushaja kanye nezinye izimo zokuphathwa kwamandla. Lezi yizinketho zokuklama ongazikhethela, hhayi izici zesigaba. I-BOM yokuhlanganisa kanye nokugeleza kokuhlola kufanele kuchaze ngokucacile i-SKU enentambo uma kuqhathaniswa ne-wireless ngoba izixhumi zebhethri, izingxenye ze-RF, ama-IC okushaja kanye ne-firmware kungashintsha ngenkathi isigaba sokuzwa sisafana.
Ama-mechanics esixhumi se-USB afanelwe ukunakwa kuma-peripherals amancane edeskithophu ngoba abasebenzisi balayisha ikhebula ngokuphindaphindiwe. Ukushintshwa kwegobolondo lesixhumi, amathebhu e-anchor, i-board-edge clearance kanye nokulungiswa kwe-enclosure kufanele kuhlolwe ngesikhathi sokuqala. Kuma-variable angenantambo, i-antenna keep-out kanye ne-RF module position kufanele kuhlale kuvikelwe ezinguqukweni zethusi noma zemishini eziphuzile. Ukuhlolwa kokukhiqiza kungaqinisekisa ukubalwa noma uxhumano olungenantambo, kodwa akufanele kwethulwe njengokufaka esikhundleni sesitifiketi esigcwele se-EMC noma somsakazo.
I-Highleap Electronics • Ukukhiqiza i-PCB kanye ne-PCBA
Isibuyekezo Sokukhiqiza Ithebhulethi Yokudweba ye-PCBA
Thumela i-digitizer, isilawuli, uxhumano kanye nezidingo zokuhlola zokwakha okulawulwayo.
Cela Isilinganiso Sethebhulethi Yokudweba → Xoxa Ngokuhlanganisa Ithebhulethi Yepeni →
✓ Ukubuyekezwa kwe-DFM kanye ne-DFA ✓ Uhlobo lokuphinda ukukhiqizwa ✓ Ukwenziwa nokuhlanganiswa kwe-PCB
4. Ukuhlelwa kwe-PCB kanye Nokumisa Isisekelo Sezinto Zokusebenza Ze-elekthroniki Ezingena Ngokunemba
Ngokungafani nebhodi lokulawula elijwayelekile, ithebhulethi yokudweba ihlezi eceleni kwesakhiwo esikhulu sokuzwa. Ubudlelwano phakathi kokuxhumeka kokuzwa, izindiza zokubhekisela, amasekethe okushintshana anomsindo kanye nensimbi ebiyelwe kungathinta ukusebenza. Ngakho-ke isibuyekezo se-DFM kufanele sihlukanise izinguquko zangempela zokukhiqiza ezinguqukweni zesakhiwo ezingashintsha ukuziphatha kwesignali.
Ukunemba kokuzwa kungathinteka yizinguquko ezibonakala zincane zokwakheka. Ukuthululwa kwethusi, ukuthunga phansi, ukusondelana kwe-trace kanye nezindlela zokubuyisa izixhumi kungashintsha ukuhlanganiswa kwe-parasitic noma ukuqoqwa komsindo eduze kwengxenye engaphambili yokuzwa. Ngakho-ke, ukuhlela kwe-DFM kufanele kube okunokulinganisela kulezi zindawo, futhi noma yikuphi ukuguqulwa kwethusi okuceliwe kufanele kubuyiselwe kumnikazi womklamo kunokuba 'kuhlanzwe' ngokuzenzakalelayo ngumenzi.
Ithimba le-DFM lasefektri lingenza isibuyekezo se-DFM sesikhala, ama-drill, i-solder-mask, i-panelization, ukufinyeleleka kwezixhumi kanye nemikhawulo yokuhlanganisa ngenkathi libuyisela imibuzo enengqondo kagesi kumakhasimende kunokuqagela ekuqondeni inhloso yokuklama.
Izinto zokwakha nazo zibalulekile ngoba insimu yokuzwa idlula phakathi kwenqwaba yomkhiqizo. Umkhiqizi we-PCB akalawuli i-overlay, i-housing noma i-pen geometry, kodwa kufanele ahloniphe i-deten-outs echaziwe kanye ne-mounting datums. Ngesikhathi se-NPI, hlanganisa ukuhlolwa kukagesi nokuhlolwa kobukhulu obuzungeze ukufakwa kwe-sensor-board kanye nezindawo zokuxhuma ukuze izinkinga zokulinganisa zingasoli ngephutha ku-firmware lapho imbangela eyinhloko ingukubhaliswa kabi kwemishini.
Ukubuyekezwa kwe-DFM okugxile ekuqondeni
Uma i-PCB yokulawula ixhumanisa negridi yesensa eyimfihlo, thola ukugcinwa kwethusi, ama-data emishini kanye nezindawo zokuzwa okungenashintsho kuphakheji yokukhiqiza. Lokho kuvumela i-DFM ukuthi ithuthukise ukwakheka ngaphandle kokushintsha ukuziphatha kukagesi okuncike kukho ekulinganisweni.
Ukubuyekezwa kwesakhiwo kufanele kuvikele izindlela zokubuya kanye nokuhlukaniswa ngokomzimba okuchazwe kuma-electronics okuzwa. Ukushintshwa kwe-LED yamandla aphezulu, imiphetho ye-USB noma abaguquli be-DC-DC bangahlanganiswa babe ama-node e-analog abucayi uma indawo yokuqala noma isu lomhlabathi lishintshwa. Umenzi akufanele "athuthukise" ukuthululwa kwethusi noma amapulani okuthunga azungeze isakhiwo sokuzwa esiyimfihlo ngaphandle kwemvume yomklamo; okubukeka sengathi ukubekwa komhlaba okwengeziwe kungashintsha ukuziphatha kwensimu kwezinye izinhlelo zokusebenza ze-digitizer.
I-geometry yemishini nayo ingathonya ukuphindaphindeka. Izindawo zokuxhuma, ukuvumelanisa kwebhodi kuya ku-sensor kanye namaphoyinti okufaka kufanele kulawulwe ngokuhambisana nomdwebo okhishwe, ikakhulukazi lapho ukulinganisa kuthatha ubudlelwano obuqinile phakathi kwendawo yokuzwa kanye nendawo ebiyelwe. I-DFM isengakwazi ukwenza ngcono i-panelization, i-tooling rails kanye nokufinyelela kwe-assembly, kodwa kufanele ikwenze lokho ngaphandle kwe-geometry yokusebenza uhlelo lokufaka oluthembele kuyo.
5. Ukwakhiwa kwe-PCB Encane Ngaphandle Kokusungula I-Stack-Up Engaguquki
Amabhodi okulawula amathebhulethi adwetshwayo avame ukuba mancane, kodwa akukho sibalo sesendlalelo esisodwa noma izinto ezihambisana nesigaba somkhiqizo. Ukubeka isendlalelo kulandela ubuningi bendlela, izidingo zokubeka phansi, ukubekwa kwesixhumi kanye nezinhloso ze-EMI.
I-PCB yokulawula ithebhulethi encane yokudweba ingaba ibhodi elilula elinezingqimba eziningi noma umklamo oqinile usebenzisa izici ezincane; akukho ukuhlanganiswa okubanzi. Ukwenziwa kufanele kusekelwe ezidingweni zokulandelela/isikhala esikhishwe, ukubhoboza, ukuvinjelwa kanye nokujiya, ngezinqubo ezikhethekile ezingeziwe kuphela lapho ukwakheka kuzidinga. Lokhu kuvimbela ubunjiniyela obukhulu kakhulu kudivayisi yokufaka ebiza kakhulu ngoba nje igama elingukhiye liqukethe 'ukunemba.'
Uma umklamo uhlanganisa amaphakheji e-fine-pitch, ama-via amancane noma i-controlled-impedance USB routing, umzila wokukhiqiza kufanele ukhethwe kulezo zimfuneko. Inqubo ye-multilayer noma i-HDI ingase ifaneleke kweminye imikhiqizo, kodwa akufanele neze inikezwe njengesibopho sokumbozwa kwe-SEO kuphela.
Ukuphindaphindeka kubaluleke kakhulu kunokwakhiwa okungavamile. Ubukhulu be-dielectric, i-geometry yethusi, ukubhaliswa kwe-solder-mask kanye nobukhulu bomphetho wesixhumi kufanele kuhlale kufana kakhulu uma kuthinta isikhombikubona sokuzwa noma somshini. Uma ibhodi lihlangana nefilimu enkulu yenzwa noma igridi, umhlinzeki kufanele futhi aqinisekise indlela yephaneli kanye ne-depanel ukuze ukucindezeleka noma i-warpage yebhodi kungashintshi ukulingana kokugcina.
Ukuqeda ubuso, ukubhaliswa kwe-solder-mask kanye nokubekezelelana kohlaka lokugcina kufanele kukhethwe ngokwezidingo zangempela zesixhumi kanye ne-sensor-interface, hhayi ukubukeka. Uma unqenqema lwebhodi, i-datum yokufaka noma isixhumi se-sensor kusetha ireferensi yendawo esebenzayo, ukuhlolwa kwayo kobukhulu kufanelwe ukunakwa okufanayo nokuqhubeka kukagesi ngoba ukukhukhuleka kwe-geometry kungaba inkinga yokulinganisa noma yokulingana nendawo ebiyelwe.
Ubuchwepheshe bebhodi kufanele bukhethwe kusukela ekuxineni kwe-routing kanye nezidingo zemishini. Amabhodi amaningi okulawula angakhiqizwa nge-FR-4 evamile enezingqimba eziningi, kuyilapho amamodeli angenantambo amancane noma abalawuli abahlanganiswe kakhulu bengathethelela izici ezincane noma i-HDI. Akukho ukuhlanganiswa okujwayelekile, isisindo sethusi noma uhlobo lwethebhulethi yokudweba. Ukushicilela imininingwane enjalo engaguquki kungadala umthetho wokuklama ongamanga futhi kungakhuphula izindleko ngokungadingekile.
Izilawuli zokwenziwa eziwusizo kakhulu ukunemba kobukhulu, ukubhaliswa kwe-solder-mask ezungeze izingxenye ezincane, imiphetho ehlanzekile yokuxhuma, ukuqeda okufana kobuso kanye nanoma yiziphi izidingo ze-impedance ze-USB noma ezinye izixhumi ezisheshayo. Uma isakhiwo sokuzwa ngokwaso siyingxenye ye-PCB, i-geometry yayo yethusi kanye nesikhala se-dielectric kungabaluleka ekusebenzeni futhi kufanele kuphathwe njengedatha yomklamo olawulwayo. Umdwebo wokwenziwa udinga ukuhlukanisa lawo ma-geometri abalulekile ekuqondisweni okuvamile ukuze isitolo sebhodi sazi ukuthi izinguquko zivinjelwe kuphi.
6. Ukuhlanganiswa kwe-SMT, Izinkinobho kanye nokulawulwa kwenqubo yesixhumi
I-PCBA ingafaka isilawuli, amadivayisi kagesi, izingxenye zesixhumi se-USB, izingxenye ezingenantambo ezingakhethwa, ama-LED kanye nesekethe yezinkinobho/i-encoder. Izilawuli eziphindaphindwayo kanye nezixhumi ezincane zenza ukuqondiswa kanye nokuzithiba kokubekwa kubaluleke.
Ingxube yokuhlanganisa ingafaka i-microcontroller, ama-IC okuzwa, ama-passive, isixhumi se-USB, izinkinobho, ama-LED kanye namadivayisi omsakazo/amandla angakhethwa. Izikhundla zenkinobho eziphindaphindwayo noma ze-LED zandisa inani lokuhlolwa kwengxenye yokuqala ngoba iphutha elilodwa le-polarity noma lokuqondiswa lingakopishwa kulo lonke ibhetshi. Izixhumi ze-USB nazo zidinga ukwesekwa okwanele komshini kanye nokuhlolwa ngoba imithwalo yokufaka yomsebenzisi idluliselwa ngqo kwi-PCB.
Isikali sokukhiqiza singanikeza ukuhlanganiswa kwe-SMT ukuhlolwa kwengxenye yokuqala kanye ne -AOI ukuze kutholakale indawo ebonakalayo/izimo zomdayisi . Lapho kukhona amaphakheji aqediwe phansi, i-X-ray eqondiwe ingangezwa ngokusekelwe kuphakheji kanye nengozi yephrojekthi.
Ukulawulwa kwenqubo kufanele kuhlukanise ukulungiswa kabusha kwezimonyo nokulungiswa kabusha endleleni yokuzwa. Ukushisa ngokweqile, ukushintshwa kwezingxenye noma ukulungiswa kwesixhumi eduze kwesekethe ye-analog ebucayi kungashintsha ukusebenza noma ngabe ukuqhubeka kubuyiselwa. Ngakho-ke inqubomgomo yokulungiswa kabusha elawulwayo kanye nokuqinisekiswa kokusebenza kwesampula ngemva kokulungiswa kuthembekile kakhulu kunesithembiso esijwayelekile sokuthi wonke amabhodi ahlanganisiwe angalungiswa.
Izinkinobho nezilawuli ezijikelezayo, uma zikhona, zengeza ubungozi bazo bokuqoqwa kwemishini. Ukuphakama kweswishi, ukulungiswa kwe-actuator kanye nekhwalithi ye-solder fillet kungathinta umuzwa ngemva kokuhlanganiswa kwe-enclosure. Ngakho-ke, ukubuyekezwa kwesihloko sokuqala kufanele kuqhathanise ukuphakama kwengxenye ehlanganisiwe kanye nendawo nomdwebo wemishini, ikakhulukazi ezizungeze izilawuli ezisetshenziswa ngumsebenzisi kanye nezixhumi zekhebula ezibona umthwalo ophindaphindwayo usensimini.
Ingozi yokuhlanganisa ivame ukugxila ezingxenyeni ezincane eziphindaphindwayo, abalawuli, izixhumi kanye nezingxenye ze-interface yomsebenzisi kunamadivayisi anamandla kakhulu. Ukuhlolwa kokuqala kufanele kuqinisekise ukuqondiswa kwenkinobho, ama-LED, ama-encoder, izixhumi ze-USB, amamojula angenantambo kanye nanoma yisiphi isixhumi se-sensing-interface ngaphambi kokuba kuqhubeke i-lot. Emikhiqizweni eneziteshi eziningi ezifanayo, inani le-component elingalungile lingaphindaphindwa kuyo yonke ibhodi futhi libukeke lihambisana ngokubonakalayo, okwenza ukuqinisekiswa kwe-BOM-to-placement kube yinto ebalulekile.
Lapho kusetshenziswa amaphakheji aqediwe phansi, i-X-ray ingangezelela i-AOI, kodwa ikhwalithi yokuhlanganisa kufanele ihlolwe ngokuziphatha okusebenzayo. Ukusebenza kwe-connector coplanarity kanye nokusebenza kwe-solder ngesandla nakho kufanelwe imiyalelo yokusebenza elawulwayo ngoba ithebhulethi eliqediwe lingase libe lincane futhi licindezelwe ngomshini. Inqubo ekhiqiza amasampula e-PCBA angenalutho asebenza ngogesi isengadala ukwehluleka kwensimu uma ukufakwa kwekhebula noma ukubopha okuvalekile kulayisha amalunga abuthakathaka.
7. Ukuhlolwa Kokusebenza kanye Nokusekelwa Kokulinganisa
Ibhodi lingaphumelela ekuhlolweni okubonakalayo kodwa lihluleke njengedivayisi yokufaka. Ukuqinisekiswa kokukhiqiza kufanele kubonise ukuxhumana nomsingathi futhi, uma izinto zamakhasimende zitholakala, ukutholwa kwepeni elimele, izinkinobho kanye nemisebenzi yokushaja engenantambo/yokushaja yama-SKU afanele.
Ukuhlolwa kokusebenza kufanele kubonise indlela kagesi kusukela ekusebenzisaneni kwepeni kuya kudatha yomsingathi, kodwa ububanzi bokulinganisa buncike ekwakhiweni komkhiqizo. Ifektri ingaqinisekisa indawo etholakele, izinkinobho, impendulo yokucindezela noma ukumbozwa okuyisisekelo kokuxhumanisa kusetshenziswa izinto/isofthiwe yamakhasimende; ukulinganisa kokugcina kokunemba kungadinga uhlelo lokubhekisela lomshini noma i-algorithm eyimfihlo ephethwe yinkampani yomkhiqizo. Lowo mngcele kufanele ubhalwe ohlelweni lokuhlola.
Ukulinganisa kungancika ku-firmware eyimfihlo, amamephu ezinzwa, amasampula egolide noma isofthiwe enikezwe ngumnikazi womkhiqizo. Ukukhiqiza kungenza inqubo echaziwe, kodwa akufanele kuthi kuthola imodeli yokulinganisa yokubhala eqondene nomkhiqizi kusuka kudatha ejwayelekile ye-PCB.
Hlola ubunikazi
Chaza ukuthi ukuhlolwa kwefektri kufakazela yini ama-elekthronikhi e-PCBA, ukuzwa indawo esebenzayo ngokugcwele, noma ukusebenza komkhiqizo okuhlanganisiwe kokugcina. Lezi yizikophu zokwamukela ezahlukene.
Ukuhlolwa kwe-NPI okuwusizo nakho kubheka ukuphindaphindeka, hhayi nje ukushaywa okukodwa okuphumelelayo. Ukuthatha amasampula endaweni esebenzayo, ukuhlola ukusebenza eduze kwezinkinobho noma imisakazo, kanye nokuqhathanisa izimo zezintambo noma ezingenantambo kungaveza izinkinga zokuxhuma noma zokuhlanganisa. Uma kutholakala ukwehluleka, ukugcina idatha ye-PCB/PCBA serial, inguqulo ye-firmware kanye nedatha yokuhlola kusiza ubunjiniyela ukuhlukanisa inkinga yenqubo yebhodi nenkinga ye-sensor-stack noma ye-algorithm.
Ukuhlolwa kokusebenza kufanele kuhlukanise ukuqinisekiswa okuyisisekelo kwe-elekthronikhi nokulinganiswa kokugcina. Ifektri ingaqinisekisa amandla, ukuxhumana kwe-USB noma kwe-Bluetooth, izinkinobho, ama-LED kanye nempendulo yokufaka ipeni eluhlaza kusetshenziswa isofthiwe yamakhasimende noma izinto ezifakiwe. Ukulinganisa kungase kufake idatha yokuzwa eluhlaza endaweni esebenzayo eqediwe, kubuyisele i-geometry yomkhiqizo othile noma kuhlole impendulo yokucindezela. Indlela yokulinganisa eqondile ingeyezobuchwepheshe bokuzwa kwekhasimende futhi akufanele isungulwe yi-assembler.
Ukuze kukhiqizwe kahle, sebenzisa idatha ye-NPI ukuze unqume ukuthi yiziphi izivivinyo ezithola amaphutha okuhlangana. Ukuhlolwa kwegridi emfushane noma impendulo yephuzu kungaba yigugu kakhulu kunokunyakaza kwepeni okungahleliwe ngoba kungaveza izindawo ezifile noma amaphutha okuxhuma. Gcina izinguqulo ze-firmware kanye namathuluzi okulinganisa ngerekhodi le-lot ukuze ushintsho lwesofthiwe lwakamuva lungaphazanyiswe nokushintsha kwe-hardware. Uma kusetshenziswa amapeni egolide noma izinto ezisetshenziswayo, lawula ukuguguleka kwawo nokubuyekezwa njengengxenye yesistimu yokuhlola.
8. Ukukhetha Umlingani Wokukhiqiza we-PCB Tablet Yokudweba
Umhlinzeki we -Drawing Tablet PCB kufanele aqonde ukuthi ingozi enkulu akuyona i-electronics yokubonisa—kuwukukhiqizwa okuzinzile kwepulatifomu yokuzwa/yokulawula kanye nesixhumi sayo esibonakalayo. Buyekeza ulwazi nge-SMT encane, imishini yokuxhuma, izakhiwo ezinomsindo ophansi, ama-BOM alawulwayo kanye nezinto ezisebenzayo.
Isiphetho
Ithebhulethi yokudweba engabonisi kufanele ibhalwe futhi yenziwe njengedivayisi yokufaka enembile. Ukugcina lowo mngcele ucacile kuvimbela ukuphindaphindwa kokuqukethwe okuboniswa yipeni futhi kugwema izimangalo zobuchwepheshe ezingasekelwa ukwakheka komkhiqizo wangempela.
Umhlinzeki wethebhulethi yokudweba kufanele aqonde umehluko phakathi kokuphindaphindeka kokukhiqiza kanye nobunikazi be-algorithm yokuzwa. Buza ukuthi ifektri ingakwazi yini ukugcina idatha yemishini, ukulawula ukushintshana kwezingxenye ze-analog/timing, ukuphatha izinhlobo ze-USB/wireless kanye nokusebenzisa ukulinganiswa kwamakhasimende noma isofthiwe esebenzayo ngaphandle kokuyishintsha. Lokhu kubaluleke kakhulu kunokucela isimangalo esijwayelekile njengokuthi "isipiliyoni ngama-PCB ethebhulethi."
I-RFQ esebenzayo kufanele ifake incazelo yebhodi lokuzwa, i-BOM/CPL, umdwebo womshini, uhlobo lwesixhumi esibonakalayo, inketho engenantambo, amafayela e-firmware/ohlelo kanye nokuhlolwa okulindelekile kwempendulo yepeni. I-Highleap ingabe isicaphuna ububanzi bokukhiqiza be-elekthronikhi futhi ihlonze noma yikuphi ukuncika kwe-fixture noma ukulinganisa. Ku -Drawing Tablet PCB , lokho kucaca kudala indlela yokukhiqiza enamandla kunokucacisa ubuchwepheshe bokuzwa obungasekelwa noma izimangalo zezinga lokucindezela elijwayelekile.
Iphuzu lokuguqulwa kwe-RFQ
Yabelana ngomdwebo we-sensor-interface kanye nokuhlolwa kwepeni okuchazwe yikhasimende noma inqubo yokulinganisa nephakheji ye-PCB. I-Highleap ingabuyekeza ukuphindaphindeka kokuhlanganiswa, indlela yokuxhumanisa kanye nokuhlola ukusebenza ngenkathi igcina ukwakheka kokuzwa okuyimfihlo ngaphansi kolawulo lwakho.
Posts Kunconywe
Ukwenziwa kwe-TMM PCB
Okuqukethwe I-TMM PCB Fabrication Scope ye-RF kanye...
I-RT duroid 6002 PCB Quote kanye Nesitaki
Leli khasi liphethe umsebenzi wokucaphuna kanye nokuchazwa kwe-stackup...
Ukukhiqizwa kwe-PCB Yesihlungi se-TMM6
Okuqukethwe Kungani Abaklami Bezihlungi Ze-Microwave Besebenzisa...
I-Taconic RF 35 vs RO4350B PCB
Uhlu lokuqukethweRF-35 vs RO4350B Ukuthengwa kanye...
Ungasithola kanjani isilinganiso sama-PCB
Ake siqhube ukuhlaziywa kwe-DFM/DFA bese sibuyela kuwe nombiko. Ungalayisha amafayela akho ngokuphephile ngewebhusayithi yethu. Sidinga ulwazi olulandelayo ukuze sikunike isilinganiso:
-
- Gerber, ODB++, noma .pcb, spec.
- Uhlu lwe-BOM uma udinga ukuhlangana
- Ubuningi
- Isikhathi sokushintsha
Ngezinsizakalo ze-PCBA, sicela unikeze i-BOM yakho (I-Bill of Materials) kanye nanoma yimiphi imiyalelo ethile yomhlangano. Siphinde sinikeze ukuhlaziya kwe-DFM/DFA ukuze uthuthukise imiklamo yakho ukuze yenziwe futhi ihlanganiswe, ukuqinisekisa inqubo yokukhiqiza eshelelayo.