Khetha indlela yokunqwabelanisa yebhodi lesifunda ephrintiwe ye-multilayer

Lapho uklama amabhodi esekethe aphrintiwe anezigaba eziningi (ama-PCB), ukukhetha indlela efanele yokunqwabelanisa kubalulekile. Ngokuya ngezidingo zokuklama, izindlela ezihlukene zokupakisha, ezifana nokupakishwa kwe-enclave kanye ne-symmetric stacking, zinezinzuzo eziyingqayizivele.Kulokhu okuthunyelwe kwebhulogi, sizohlola indlela yokukhetha indlela efanele yokunqwabelanisa, sicabangela izici ezifana nobuqotho besignali, ukusatshalaliswa kwamandla, kanye nokukhiqiza kalula.

Qonda izindlela zokupakisha ze-PCB ezendlalelo eziningi

Ama-PCB angama-Multilayer aqukethe izendlalelo eziningi zezinto eziqhutshwayo ezihlukaniswa ngezandlalelo ezivikelayo. Inani lezendlalelo ku-PCB lincike ebunzimeni bomklamo kanye nezidingo zesekhethi. Indlela yokunqwabelanisa inquma ukuthi izendlalelo zihlelwe futhi zixhumeke kanjani. Ake sibhekisise izindlela ezihlukene zokupakisha ezivame ukusetshenziswa kumiklamo ye-PCB enezingqimba eziningi.

1. Enclave stacking

I-Enclave stacking, eyaziwa nangokuthi ukupakisha kwe-matrix, kuyindlela evame ukusetshenziswa ekwakhiweni kwe-PCB enezingqimba eziningi. Lolu hlelo lokupakisha lubandakanya ukuqoqa izendlalelo ezithile ndawonye ukuze zakhe indawo ehlangene ngaphakathi kwe-PCB. Ukunqwabelanisa kwe-Enclave kunciphisa ukuxoxisana phakathi kwamaqembu ezendlalelo ezihlukene, okuholela kubuqotho besignali engcono. Iphinde ibe lula ukuklama kwenethiwekhi yokusabalalisa amandla (i-PDN) ngoba amandla nezindiza eziphansi zingaxhunywa kalula.

Kodwa-ke, ukupakishwa kwe-enclave nakho kuletha izinselele, njengobunzima bokulandelela imizila phakathi kwe-enclave ehlukene. Kumelwe kucatshangelwe ngokucophelela ukuze kuqinisekiswe ukuthi izindlela zesignali azithintwa imingcele yama-enclave ahlukene. Ukwengeza, ukupakishwa kwe-enclave kungadinga izinqubo zokukhiqiza eziyinkimbinkimbi, ezikhuphula izindleko zokukhiqiza.

2. I-Symmetric stacking

Ukupakishwa kwe-Symmetric kungenye indlela evamile ekwakhiweni kwe-PCB ye-multilayer. Kubandakanya ukuhlelwa kokulinganisa kwezingqimba ezizungeze indiza emaphakathi, ngokuvamile ehlanganisa amandla nezindiza eziphansi. Lolu hlelo luqinisekisa nokusatshalaliswa kwesignali namandla kuyo yonke i-PCB, kunciphisa ukuhlanekezela kwesignali nokuthuthukisa ubuqotho besignali.

I-Symmetrical stacking inikeza izinzuzo ezifana nokulula kokukhiqiza kanye nokukhipha ukushisa okungcono. Ingenza lula inqubo yokukhiqiza ye-PCB futhi yehlise ukuvela kwengcindezi eshisayo, ikakhulukazi ezinhlelweni zokusebenza zamandla aphezulu. Kodwa-ke, ukupakishwa kwe-symmetric kungase kungafaneleki imiklamo enezidingo ezithile zokuthikamezeka noma ukubekwa kwengxenye okudinga ukwakheka kwe-asymmetric.

Khetha indlela efanele yokunqwabelanisa

Ukukhetha indlela efanele yokunqwabelanisa kuncike ezidingweni ezihlukahlukene zokuklama nokuhwebelana. Nazi ezinye izici okufanele zicatshangelwe:

1. Ubuqotho besignali

Uma ubuqotho besignali kuyisici esibalulekile ekwakhiweni kwakho, ukunqwabelanisa kwe-enclave kungase kube ukukhetha okungcono. Ngokuhlukanisa amaqembu ahlukene ezendlalelo, kunciphisa amathuba okuphazamiseka kanye ne-crosstalk. Ngakolunye uhlangothi, uma idizayini yakho idinga ukusatshalaliswa okulinganiselwe kwamasiginali, ukunqwabelana okulinganayo kuqinisekisa ubuqotho besignali engcono.

2. Ukusabalalisa amandla

Cabangela izidingo zokusabalalisa amandla zomklamo wakho. Ukupakishwa kwe-Enclave kwenza amanethiwekhi okusabalalisa amandla abe lula ngoba amandla nezindiza eziphansi zingaxhunywa kalula. I-Symmetric stacking, ngakolunye uhlangothi, inikeza ukusatshalaliswa kwamandla okulinganiselayo, ukunciphisa ukwehla kwamandla kagesi kanye nokunciphisa izinkinga ezihlobene namandla.

3. Izinyathelo zokuphepha zokukhiqiza

Linganisa izinselele zokukhiqiza ezihlobene nezindlela ezahlukene zokunqwabelanisa. Ukupakishwa kwe-Enclave kungase kudinge izinqubo zokukhiqiza eziyinkimbinkimbi ngenxa yesidingo somzila wekhebula phakathi kwama-enclave. I-Symmetrical stacking ibhalansile futhi kulula ukuyikhiqiza, engenza inqubo yokukhiqiza ibe lula futhi yehlise izindleko zokukhiqiza.

4. Izithiyo zokuklama eziqondile

Eminye imiklamo ingaba nemikhawulo ethile eyenza indlela eyodwa yokunqwabelanisa ibe ngcono kunenye. Isibonelo, uma idizayini yakho idinga isilawuli se-impedance ethile noma ukubekwa kwengxenye ye-asymmetric, ukunqwabelanisa kwe-enclave kungase kulunge kakhulu.

imicabango yokugcina

Ukukhetha indlela yesitaki ye-PCB enezingqimba eziningi kuyisinyathelo esibalulekile enqubweni yokuklama. Lapho unquma phakathi kokunqwabelaniswa kwe-enclave nokunqwabelaniswa kwe-symmetric, cabangela izici ezifana nobuqotho besignali, ukusatshalaliswa kwamandla, kanye nokulula kokukhiqiza. Ngokuqonda amandla nemikhawulo yendlela ngayinye, ungakwazi ukuthuthukisa umklamo wakho ukuze uhlangabezane nezidingo zawo ngempumelelo.