Ndeupi musiyano uripo pakati pePCB nePCBA?

Munyika yezvemagetsi, Printed Circuit Boards (PCBs) nePrinted Circuit Board Assemblies (PCBAs) zvinhu zvakakosha. Kunyange zvazvo zvakafanana, kunzwisisa kusiyana kwadzo kwakakosha kune chero munhu anoshanda mukugadzira, kugadzira, uye kuunganidza zvemagetsi. Gwaro iri richatsanangura musiyano uripo pakati pePCBs nePCBAs, mashandiro adzo, mashandisirwo adzo, uye maitiro adzo mukugadzirwa kwadzo.

Chii chinonzi PCB?

A Printed Circuit Board (PCB) ndiyo hwaro hwepanyama hwezvizhinji zvemagetsi zvishandiso. Inopa puratifomu panoiswa zvinhu zvemagetsi, senge resistors, capacitors, uye integrated circuits (ICs). Kazhinji inovakwa kubva kune akaturikidzana efiberglass, mhangura, uye isiri-conductive zvinhu, maPCB anouya mune akasiyana masisitimu zvichienderana nekuoma kwekushandisa.

Mamiriro akakosha ePCB:

• Material Kuumbwa: MaPCB anogadzirwa kubva kune asiri-conductive substrates seFR-4 fiberglass uye akaputirwa nemhangura. Aya mataira emhangura anobva agadzikwa kuti aite mitsetse nemapads anogonesa kubatana kwemagetsi.
• Functionality: Basa rekutanga rePCB nderekupa tsigiro yemuchina uye kubatanidza kwemagetsi pakati pezvinhu zvemagetsi. Iyo haiite chero inoshanda mabasa asi inopa inodiwa masisitimu ekuti zvikamu zvitaure.
• Types: PCBs dzinobva pamapuranga akareruka e-single-layer board (ane rimwe layer yemhangura) kusvika kune akawanda-layer board (ane akati wandei akaturikidzana emhangura), akagadzirirwa mamwe akaomarara, akakwirira-density maapplication akaita sema smartphones, makomputa, uye midziyo yekurapa.

PCB Kugadzira Maitiro:

Kucheka Zvinhu → Material Kucheka uye Kuomesa → LDI Alignment Holes → Inner Layer Dry Film → Inner Layer Etching → Inner Layer AOI → Brown oxidation → Kuzvimba → (Aluminium Drilling) Drilling (Metalized Grooving) → Deburring → Copper Plating → Board Plating → Outer Layer Dry Film → Dry Film Inspection → Graphic Electroplating → Outer Layer Etching (Thiol Wash) → Outer Layer AOI → (Kukuya) → (Via Hole Plugging) Solder Mask → Solder Mask Kuongorora → Characters → Hot Air Solder Leveling (HASL) → (Impedance Testing) Electronic Testing → (Kuchera kwechipiri, V-CUT) Board Milling → Basa Tarisa → Yekupedzisira Kuongorora → Packaging → Yakapera Goods Warehouse.

Chii chinonzi PCBA?

PCB Assembly (PCBA) inoreva Printed Circuit Board (PCB) yakazadzwa nezvinhu zvemagetsi kuburikidza nemaitiro akasiyana-siyana ekubatanidza. Kushandurwa kubva paPCB iri nyore, isina vanhu kuenda kuPCBA yakaungana zvizere kunoita kuti ikwanise kushanda sedunhu remagetsi rinoshanda rinokwanisa kuita mabasa chaiwo mukati memudziyo kana sisitimu.

Hunhu Hunokosha hwePCBA

• Electronic zvinoriumba: A PCBA inoumbwa nemhando dzakasiyana-siyana dzemagetsi, izvo zvinogona kusanganisira resistors, capacitors, diodes, transistors, integrated circuits (ICs), zvibatanidza, uye zvimwe zvinoshanda uye zvisingabatsiri zvikamu. Zvinhu izvi zvinonyatsotengeswa pabhodhi kuti pave nekubatanidza magetsi. Izvo zvikamu zvinogona kusungirirwa uchishandisa nzira dzakasiyana, dzakadai seKuburikidza neHole Technology (THT) kana Surface-Mount Technology (SMT).
• Functionality: A PCBA inosiyana zvakanyanya kubva kune yakakosha PCB. Nepo PCB ichingoshanda sechimiro chemagetsi uye chemagetsi, PCBA idunhu rinoshanda rakagarwa nevanhu uye rakabatanidzwa nemagetsi. Maitiro egungano anovimbisa kuti zvese zvinoiswa zvakaiswa, kutengeswa, uye nemagetsi zvakabatanidzwa, zvichiita kuti PCBA ikwanise kuita mabasa chaiwo sezvakagadzirwa.

PCBA Manufacturing Process

Iyo PCBA yekugadzira maitiro inosanganisira akati wandei matanho anoshanda pamwechete kuti ave nechokwadi chemhando yepamusoro uye kushanda:

1. Component Placement:
   • Izvo zvikamu zvinoiswa paPCB ichitevera dhizaini dhizaini, iyo inowanzo kupihwa muchimiro chebhiri rezvinhu (BOM) uye schematic diagram.
   • Mukugadzirwa kwakaderera-vhoriyamu, zvikamu zvinogona kuiswa nemaoko, nepo kugadzirwa kwepamusoro-vhoriyamu, otomatiki pick-uye-nzvimbo michina inoshandiswa kunyatsoisa zviuru zvezvikamu mukati menguva pfupi.
2. Kutengesa:
   • Mushure mekunge zvikamu zvaiswa paPCB, nhanho inotevera yakakosha ndeyekutengesa kuti ive nechokwadi chekubatanidza magetsi.
   • Kuburikidza negomba zvikamu, wave soldering inowanzoshandiswa, uko PCB inopfuudzwa pamusoro pemafungu eyakanyungudutswa solder kugadzira majoini emagetsi.
   • Pamusoro-pamusoro-soro zvikamu, reflow soldering inowanzoshandiswa. Izvi zvinosanganisira kuisa solder paste kuPCB, kuisa zvikamu, uyezve kudziyisa bhodhi muhovhoni yekuyerera kunyungudutsa solder uye kugadzira yakavimbika magetsi ekubatanidza.
3. Kuongorora uye Kuedzwa:
   • Kuonekwa Kwekuona: Danho rekutanga mushure mekutengesa rinowanzova ongororo yekuona, iyo inotarisa zvikanganiso zviri pachena senge solder mabhiriji, nzvimbo dzakarasika, kana kutarisika kwakashata.
   • Automated Optical Inspection (AOI): Michina yeAOI inoshandiswa kuona zvinhu zvakaita sezvinhu zvisipo, majoini emasoja asina kunaka, kana kuti chikamu chisipo. Iyi inzira yekuongorora inoshanda uye isiri-invasive.
   • X-ray Kuongorora: Kune mamwe magungano akaoma ane akavanzika solder majoini (kunyanya ane BGA components), X-ray ongororo inogona kushandiswa kuona kwakaringana soldering pasi pechikamu.
   • Basa Rinoshanda: Kana gungano racho rikaongororwa nemaziso uye nemuviri, rinoongororwa kushanda kuti ive nechokwadi chekuti PCBA inoshanda sezvaitarisirwa. Izvi zvinosanganisira kuyedzwa kwemagetsi, sekuenderera mberi uye cheki yekuramba, uye zvinogona kusanganisira kuronga bhodhi kuti rione kushanda kwayo.

Misiyano Yakakosha Pakati pePCB nePCBA

Ose maPCB (Akadhindwa Circuit Boards) uye PCBAs (Printed Circuit Board Assemblies) zvinhu zvakakosha mumidziyo yemazuva ano yemagetsi, asi anoshanda mabasa akasiyana uye anogadzirwa kuburikidza nemaitiro akasiyana ekugadzira. Kunzwisisa mutsauko uripo pakati pavo kwakakosha kune chero munhu ane chekuita nekugadzirwa kwemagetsi uye kugadzira.

1. Kuumbwa: PCB vs PCBA

• PCB : PCB ibhodhi redunhu risina chinhu rakagadzirwa ne substrate (yakadai se FR-4 fiberglass) uye zvisaririra zvemhangura zvinogadzira nzira dzemagetsi dzezvikamu. Padanho rino, PCB ingori hwaro, isina zvikamu zvakabatanidzwa.

• PCBA : PCBA, kune rumwe rutivi, iPCB yakazadzwa nezvinhu zvemagetsi zvakaita se resistors, capacitors, ICs, diodes, uye connectors, izvo zvinosungirirwa kubhodhi kuti zvigadzire circuit yakakwana, inoshanda.

2. Kushanda: Passive vs Active

• PCB : PCB pachayo chinhu chisiri chemagetsi. Inopa chimiro chemuviri uye kubatana kwemagetsi asi haiite chero basa rakati kusvika zvikamu zvawedzerwa.

• PCBA : Kana zvikamu zvacho zvaiswa paPCB, PCBA inova dunhu rinoshanda, rinoshanda rinokwanisa kuita mabasa chaiwo, akadai sekugadzirisa masaini, kuverenga data, kana kudzora mudziyo, zvichienderana nekugadzirwa kwedunhu.

3. Manufacturing process: Kubva ku Substrate kuenda kuGungano

• Kugadzira PCB : Kugadzira PCB kunonyanya kutarisisa kugadzirwa kwe substrate, kuchekwa kwemhangura, uye kugadzirira zvidimbu zvekubatanidza. Maitiro aya anosanganisira lamination, kuchekwa, uye kuchekwa kuti pave nechimiro chepakutanga chezvikamu.

• Kugadzira PCBA : Kugadzira PCBA kwakaoma zvikuru. Kunosanganisira kugadzirwa kwePCB kunoteverwa nekuiswa kwezvikamu, kusungirirwa, uye kuyedzwa. Maitiro aya anoda kurongeka kwakanyatsojeka kwezvikamu uye matekiniki ekusungirirwa (senge wave soldering kana reflow soldering) kuti ive nechokwadi chekubatana kwakakodzera kwemagetsi.

4. Kuedza: PCB vs PCBA Testing

• Kuedzwa kwePCB : Munguva yePCB, chinangwa chikuru ndechekuona kuti bhodhi rakasimba. Izvi zvinosanganisira bvunzo dzakadai sekutarisa kuenderera mberi kwechinhu, kuona mapfupi emagetsi, uye kusimbisa impedance kuti ive nechokwadi chekuti chimiro chepakutanga hachina zvikanganiso.

• Kuedzwa kwePCBA : Kuedzwa kwePCBA kwakazara uye kunosanganisira:

  • In-Circuit Testing (ICT): Inoongorora kuiswa uye kushanda kwezvikamu zvega.
  • Basa Rinoshanda: Inovimbisa kuti dunhu rese rinoita sezvinodiwa.
  • Kusvirwa Mukuedza: Inomhanyisa gungano pasi pemamiriro ekushushikana kuti ive nechokwadi chekuvimbika kwenguva refu.

Nepo maPCB nemaPCBA achiwanzo shandiswa zvakasiyana, akasiyana zvakanyanya mukuumbwa kwawo, mashandiro, uye basa mumidziyo yemagetsi. A PCB ingori hurongwa hwekubatanidza magetsi, nepo PCBA idunhu rinoshanda zvizere rinokwanisa kugonesa uye kutonga zvishandiso. Nekunzwisisa misiyano iyi, mainjiniya nevagadziri vanogona kuona kuti zvigadzirwa zvavo zvinosangana nezvinodiwa uye zvinoshanda nemazvo.

Zvakajairwa Zvinetso muPCB uye PCBA Kugadzira

Zvese zviri zviviri PCB nePCBA magadzirirwo ekugadzira anouya neavo seti yezvinetso zvinogona kukanganisa kunaka, mutengo, uye nguva yeprojekiti. Kunzwisisa matambudziko aya kunogona kubatsira mainjiniya, vagadziri, uye vagadziri vadzivise misungo yakajairika uye kuve nechokwadi chekubudirira kwekugadzirwa. Pazasi pane mamwe eanowanzoitika matambudziko muPCB nePCBA kugadzira uye matipi ekukunda iwo:

1️⃣ Zvikanganiso pakugadzira PCB: Kugadzira PCB kunosanganisira kuronga nokungwarira kuti uve nechokwadi chekuti masaini akamira zvakanaka, kugoverwa kwesimba, uye kutonga kwekupisa. Matambudziko anowanzo sanganisira:

• Tsvaira kukanganisa kwehupamhi: Maronda akatetepa zvakanyanya anogona kukonzera kupisa kana kusaina matambudziko.
• Kuiswa kwechikamu kusiri iko: Kuiswa kwakashata kunogona kukonzera kunetsa mukutengesa kana nyaya nekubatanidza.
• Impedans kusawirirana: Mune yakakwirira-kumhanya dhizaini, impedance inofanirwa kudzorwa kudzivirira chiratidzo chekuratidzira.

✅ Mhinduro : Shandisa maturusi eCAD epamusoro uye ita ongororo yakakwana yemitemo yekugadzira (DRC) kuti uve nechokwadi chekuti dhizaini yako yePCB yakavimbika.

2️⃣ Kuwanikwa kweZvikamu uye Kuwanikwa Kwazvo: Kuwanikwa kwezvikamu kunogona kuva dambudziko guru, kunyanya mumaindasitiri ane matekinoroji anochinja nekukurumidza. Nguva refu yekushandiswa kana kuti zvikamu zvisingachashandi zvinogona kunonotsa kugadzirwa.

✅ Mhinduro : Ronga pachine nguva kutsvaga zvinhu, uye chengetedza hukama hwakanaka nevatengesi vakawanda. Kushandisa zvimwe zvinhu uye kuchengetedza ruzivo rwakagadziridzwa kunogona kubatsira kuderedza kunonoka.

3️⃣ Zvikanganiso zveSoldering: Munguva yekubatanidza, nzira dzisina kunaka dzesoldering dzinogona kukonzera zvikanganiso zvakaita semajoini anotonhora, mabhiriji esolder, kana macircuits akavhurika zvinogona kukanganisa mashandiro ePCBA.

✅ Mhinduro : Shandisa nzira dzekugadzirisa dzinozvigadzira dzega dzakadai sekugadzirisazve kana kuchinjisa mafungu, uye gadzirisa michina yekuchinjisa kuti ive nechokwadi chekuti zvinhu zvinoshanda zvakanaka uye zvine mwero. Kuongorora kwekuona neAOI kunobatsira kuona matambudziko ekuchinjisa zvinhu nekukurumidza.

4️⃣ Kutarisira Kupisa: Sezvo maPCB achiderera uye achiwedzera kuzara nezvinhu, kugadzirisa kupisa kunowedzera kuoma. Kutadza kudzora kupisa kunogona kukonzera kutadza kushanda zvakanaka kwezvikamu kana kudzikira kwekushanda.

✅ Mhinduro : Isa ma "thermal vias", ma "heat sinks", kana ma "thermal pads" mudhizaini yako, uye funga nezvekushandisa zvinhu zvinopisa zvakanyanya zvePCB substrate.

5️⃣ Kuomarara kwekuyedza PCB nePCBA: Kuyedza maPCB nePCBA kuti utarise mhando kunogona kutora nguva. Munguva yekuyedza PCB, kuongororwa kwekuenderera mberi uye kuyerwa kweimpedance kwakakosha, nepo kuyedzwa kwePCBA kuchifanira kuratidza mashandiro echikamu chimwe nechimwe chiri pabhodhi.

✅ Mhinduro : Shandisa michina yekuyedza otomatiki (ATE), In-Circuit Testing (ICT), uye X-ray inspection kuti bvunzo dzikurumidze kuitwa uye kuve nechokwadi chekuti dzakanyatsojeka.

6️⃣ Zvinhu Zvinokonzera Kusvibiswa Kwenharaunda: Kusangana nezvinhu zvakaita sehunyoro, kushanduka kwetembiricha, kana zvinhu zvinosvibisa zvinogona kukonzera kuora kwebhodhi kana zvikamu, zvichikanganisa mashandiro ese uye kuvimbika.

✅ Mhinduro : Shandisa machira ekudzivirira kuti PCB ichengetedze uye sarudza zvinhu zvinoenderana nezvinodiwa nezvakatipoteredza zvechigadzirwa chekupedzisira.

7️⃣ Kutarisira Mari: Sezvo kuoma kwekugadzira kuchiwedzera, mitengo inokwirawo. Kutarisira kushanda zvakanaka kwemaitiro ekugadzira PCB nePCBA pasina kukanganisa mhando chinhu chinogara chichienderana.

✅ Mhinduro : Sarudza zvinhu nematekiniki ekugadzira anoenderana nezvinodiwa zvedhizaini yako uchitevedzera bhajeti. Kushanda pamwe chete nevatengesi kuti mugadzirise cheni yekugovera kunogona kubatsira kuderedza mitengo.

Nekunzwisisa uye kugadzirisa matambudziko aya pakutanga muPCB nePCBA kugadzira maitiro, unogona kuvandudza zvakanyanya kunaka kwechigadzirwa, kuderedza mitengo, uye nekumhanyisa nguva-kumusika.

mhedziso

Misiyano iri pakati pePCB nePCBA yakakosha mukunzwisisa mabasa adzo mumidziyo yemazuva ano yemagetsi. Kunyange iyo PCB inoshanda senheyo inotsigira magetsi uye michina yezvivakwa, iyo PCBA inomiririra inoshanda zvizere, yakagadzirira-kushandisa-yemagetsi dunhu. Zvose zviri zviviri zvinotamba basa rakakosha mukugadzirwa kwemagetsi nekugadzira, uye kunzwisisa mashandisiro avanoita pamwe chete ndicho chinhu chakakosha pakuona kuti zvigadzirwa zvemagetsi zvakavakwa nemhando uye nemazvo.

KuHighleap Electronic, isu tinoshanda mune ese ari maviri PCB kugadzira uye PCBA gungano, tichikupa iwe isina musono mhinduro inova nechokwadi chemhando yepamusoro uye mashandiro. Kunyangwe iwe uri mumatanho ekutanga ekugadzira kana kufamba mukugadzirwa kwakawanda, hunyanzvi hwedu uye kuzvipira kune chaiyo zvichabatsira kukwenenzvera maitiro ako ekugadzira, kuderedza mitengo, uye nekumhanyisa nguva-kusvika-kumusika. Rega tive shamwari yako yaunovimba nayo mukuunza zvigadzirwa zvako zvitsva kuhupenyu nekuvimbika uye nekunaka kwaunotarisira.

Paunenge uchironga purojekiti yako inotevera, ive shuwa yekunyatso tarisa matanho ePCB ekugadzira uye PCBA gungano, sezvo iwo ega ega aine zvirevo zvakasiyana pakugadzira, mutengo, uye kuita. Kunzwisisa misiyano iyi kuchabatsira kukwenenzvera maitiro ako ekugadzira uye kubatsira mukubudirira kwenguva refu kwechigadzirwa chako mumusika. Svika kwatiri paHighleap Electronic kuti uwane nhungamiro yehunyanzvi uye kupedzisa-kusvika-kumagumo rutsigiro muPCB nePCBA mhinduro.