Ngokusebenzisa umgodi we-HDI PCB

Ngokwesivinini se-PCB ye-PCB ephezulu, i-PCB ehlukahlukene ivame ukusetshenziswa, futhi ngokusebenzisa umgodi kuyinto ebalulekile ekwakhiweni kwe-PCB ehlukahlukene. The ngokusebenzisa umgodi ku-PCB ikakhulukazi yakhiwa izingxenye ezintathu: umgodi, indawo ye-welding pad ezungeze indawo ye-hole ne-power uhlukanise indawo yokuhlukanisa. Okulandelayo, sizoqonda i-PCB yejubane eliphezulu ngenkinga yembobo kanye nezidingo zokuklama.

Ithonya lokusebenzisa umgodi ku-HDI PCB

Ku-HDI PCB Multilayer Board, ukuxhumeka phakathi kwesendlalelo esisodwa nezinye ungqimba kudinga ukuxhunywa ngezimbobo. Lapho imvamisa ingaphansi kwe-1 GHz, izimbobo zingadlala indima enhle maqondana, kanye ne-parasitic cappacitance kanye ne-inductance kunganakwa. Lapho imvamisa iphakeme kune-1 GHz, umphumela wokuqhakaza umphumela womgodi ophezu kokwethembeka kwesiginali akunakunakwa. Ngalesi sikhathi, umgodi ongaphezu kwe-Over-kuveza indawo yokunqamula kokuphazamiseka endleleni yokudlulisela, ezoholela ekubonisweni kwesiginali, ukubambezeleka, atlonuation kanye nezinye izinkinga zokuthembeka kwezimpawu.

Lapho isinali lidluliselwa kwelinye ungqimba emgodini, ungqimba lwereferensi komugqa wesiginali luphinde lube njengendlela yokubuyisa yesiginali ngomgodi, futhi ukubuyiselwa kwemali kuzohamba phakathi kwesendlalelo se-capacition, okubangela amabhomu aphansi nezinye izinkinga.

Uhlobo lweze-yize, ngokuvamile, ngokusebenzisa umgodi uhlukaniswe izigaba ezintathu: ngokusebenzisa umgodi, umgodi ongaboni kanye nomgodi ongcwatshwe.

I-Blind Hole: Imbobo etholakala endaweni ephezulu nangaphansi yebhodi yesekethe ephrintiwe, ukuba nokujula okuthile kokuxhumana phakathi komugqa ongaphezulu kanye nomugqa ongaphansi komhlaba. Ukujula komgodi kuvame ukungadluli isilinganiso esithile se-aperture.

Umgodi ongcwatshwe: umgodi wokuxhuma engxenyeni yangaphakathi yebhodi yesekethe ephrintiwe engadluliseli ebusweni beBhodi Yesekethe.

Ngokusebenzisa umgodi: Lo mgodi udlula kulo lonke ibhodi yesekethe futhi ungasetshenziselwa ukuxhumana kwangaphakathi noma njengomgodi wokufaka umgodi wezakhi. Ngoba i-hole kule nqubo kulula ukuyifinyelela, izindleko ziphansi, ngakho-ke kusetshenziswa ibhodi yesekethe ephrintiwe

Ngokusebenzisa umgodi we-PCB ephezulu

Ngokwesivinini esiphezulu se-PCB Design, okubonakala sengathi ilula ngomgodi ivame ukuletha imiphumela emibi emibi ekwakhiweni kwesifunda.I-oda ukunciphisa imiphumela emibi ebangelwa yimiphumela ye-gerasitic, singazama konke okusemandleni ethu:

. kubhekwe ukusebenzisa usayizi omkhulu ukunciphisa ukungasebenzi;

(2) Kukhudlwana indawo yokuhlukanisa amandla, okungcono. Ukucabanga ngobuningi be-PCB, ngokuvamile i-D1 = D2 + 0.41;

(3) Zama ukungashintshi ungqimba lwesiginali kwi-PCB, okusho ukuthi, zama ukunciphisa umgodi;

(4) Ukusetshenziswa kwe-PCB emincane kuyasiza ukunciphisa amapharamitha amabili okuhambisana nawo emgodini;

(5) Iphinikhodi yokuphakelwa kwamandla kanye nomhlabathi kufanele kube eduze komgodi. Okufushane ukuhola phakathi komgodi ne-PIN, okungcono, ngoba kuzoholela ekwandeni kwe-induclance.at ngasikhathi sinye, ukuhola amandla kanye nokuhola komhlaba kufanele kube mkhulu ngangokunokwenzeka ukunciphisa amandla;

.

Ngaphezu kwalokho, ngobude bembobo kungenye yezinto eziphambili ezithinta i-hole induclance.or hole top and engezansi pay hole, i-Pass hole ubude bulingana nobukhulu be-PCB. Ngenxa yenombolo eyandayo yezendlalelo ze-PCB, ubukhulu be-PCB buvame ukufinyelela ngaphezu kwe-5 mm.

Kodwa-ke, ekwakhiweni kwe-PCB ephezulu kakhulu, ukuze kuncishiswe inkinga ebangelwa umgodi, ubude bembobo buvame ukulawulwa ngezinga elithile ngo-2.0mm.