I-4-Layer PCB Stackups Ukunemba Kokubhoboza kanye Nekhwalithi Yodonga Lwezimbobo : Amathiphu Ochwepheshe be-Capel

Yethula:

Lapho kukhiqizwa amabhodi esekethe aphrintiwe (ama-PCB), ukuqinisekisa ukunemba kokumba kanye nekhwalithi yodonga lwembobo kusitaki se-PCB esendlalelo ezi-4 kubalulekile ekusebenzeni okuphelele nokuthembeka kwensiza kagesi.I-Capel yinkampani ehamba phambili enesipiliyoni seminyaka engu-15 embonini ye-PCB, enokulawulwa kwekhwalithi njengokugxila kwayo okuyinhloko.Le bhulogi ihlose ukukunikeza imininingwane ebalulekile yokuthi ungathola kanjani ukunemba okungenakuqhathaniswa kokumba kanye nekhwalithi yodonga lwezimbobo kusitaki se-PCB enezingqimba ezi-4, kuyilapho igqamisa ubuchwepheshe buka-Capel nezisombululo ezithembekile ze-PCB ze-turnkey.

1. Ukubaluleka kokunemba kokumba kanye nekhwalithi yodonga lwembobo kusitaki se-PCB esendlalelo esi-4:

Ukunemba kokubhoboza kanye nekhwalithi yodonga lwembobo yizici ezibalulekile ezithinta ngokuqondile ukusebenza kwesitaki se-PCB esendlalelo esi-4. Ukunemba kabi kokumba kungaholela ekungaqondani kahle kwengxenye, izinkinga ze-impedance, nezinkinga zesignali yobuqotho. Ngokunjalo, ikhwalithi yodonga lwembobo enganele ingase ibe nomthelela ekusebenzeni koxhumo lwe-plated through hole (PTH), okuholela ezinkingeni zokuthembeka nokuncipha kokusebenza kukagesi.

2. Khetha imishini efanele yokumba nobuchwepheshe:

Ukuqinisekisa ukunemba kokumba, tshala ezintweni zokusebenza zokumba zekhwalithi ephezulu ezivumela ukulawula okunembile kwesivinini sokumba, ukujula, nokuqondanisa. Imishini yokumba ezenzakalelayo enezici ezithuthukisiwe njengokubhola okusizwa nge-laser nokunemba okulawulwa ngekhompiyutha kunconywa kakhulu. Ukwengeza, cabangela ama-microvias abhobozwe nge-laser kumabhodi ezendlalelo eziningi ezithuthukile njengoba enikeza ukunemba okuphakeme nokwethembeka.

3. Idizayini yokunqwabelanisa ehamba phambili:

Idizayini efanele yesitaki idlala indima ebalulekile ekuzuzeni ukunemba kokumba kanye nekhwalithi yodonga lwembobo. Sicela ucabangele amathiphu alandelayo:
- Nciphisa inani lezendlalelo zesignali ukuze unciphise ubunkimbinkimbi bokubhola.
- Gcina iyunifomu yokuqina ukuze uvimbele izimbobo zokubhoboza ukuthi zingatsheki.
- Sebenzisa ukusabalalisa ithusi okunokulinganisela ukuze ugweme ukugoba nokusonteka ngesikhathi sokumba.
- Beka amasignali anesivinini esikhulu kanye nezingxenye ezizwelayo kude nendawo ebhobhiwe ukuze unciphise ingozi yokuphazanyiswa kukagesi.

4. Inqubo yokukhiqiza ye-PCB enembile:

U-Capel unesipiliyoni seminyaka engu-15 futhi ulandela izinqubo eziqinile zokukhiqiza ukuze aqinisekise ukunemba kokumba kanye nezindonga zezimbobo zekhwalithi ephezulu kuma-stack-ups we-PCB anezingqimba ezi-4. Ngezindawo ezisezingeni eliphezulu kanye nabasebenzi abanamakhono, basebenzisa ubuchwepheshe obuthuthukisiwe obufana ne-Laser Direct Imaging (LDI) kanye ne-Automated Optical Inspection (AOI) ukuze baqondanise kahle futhi bahlole ikhwalithi phakathi nenqubo yokukhiqiza. Lobu buchwepheshe buqinisekisa ama-PCB athembekile, aqinile kumakhasimende.

5. Izinyathelo zokulawula ikhwalithi ezibanzi:

Ukuzinikela kukaCapel ekulawuleni ikhwalithi kubonakala ezinqubweni zakhe zokuhlola eziqinile. Basebenzisa izindlela zokuhlola ezithuthukisiwe, okuhlanganisa ukuhlola kukagesi, ukuhlola ukwethembeka nokuhlola ukuguga okushisayo. Ngokuqapha kwesikhathi sangempela kanye nokuhambisana nezindinganiso zekhwalithi zamazwe ngamazwe, i-Capel iqinisekisa ukuthi yonke i-PCB abayikhiqizayo ihlangabezana noma idlule okulindelwe amakhasimende.

6. I-Capel's PCB prototyping kanye nezinsizakalo zokuhlanganisa:

Njengomhlinzeki wezixazululo ze-PCB onesitobhi esisodwa, i-Capel ayigxili kuphela ekukhiqizeni izitaki ze-PCB ezinezingqimba ezi-4, kodwa futhi inikeza i-PCB prototyping esheshayo kanye nezinsizakalo ezisebenzayo zokuhlanganisa ze-SMT PCB. Le ndlela ehlelekile iqeda isidingo sabahlinzeki abaningi futhi iqinisekisa ukuhlanganiswa okungenamthungo kwazo zonke izigaba zokukhiqizwa kwe-PCB, ngaleyo ndlela yonga isikhathi nokunciphisa izindleko kumakhasimende ayo abalulekile.

Ekuphetheni:

Uma kuziwa ekuzuzeni ukunemba kokumba kanye nekhwalithi yodonga lwembobo kusitaki se-PCB enezingqimba ezi-4, ukusebenza nomkhiqizi we-PCB onolwazi nothembekile njengoCapel kubalulekile.I-Capel igqamile embonini ngokugcizelela kwayo ekulawuleni izinga, ubuchwepheshe obuthuthukisiwe kanye nezixazululo ezibanzi ze-PCB ze-turnkey. Ngokubeka phambili ukunemba kokumba kanye nekhwalithi yodonga lwembobo, ungaqinisekisa ukusebenza okuphakeme nokuphila isikhathi eside kwamadivayisi akho kagesi.