Xa uyila iibhodi zesekethe eziprintiweyo ezininzi (PCBs), ukukhetha indlela efanelekileyo yokubeka ibalulekile. Ngokuxhomekeke kwiimfuno zoyilo, iindlela ezahlukeneyo zokupakisha, ezifana ne-enclave stacking kunye ne-symmetric stacking, zineenzuzo ezizodwa.Kule post yebhlog, siza kuphonononga indlela yokukhetha indlela efanelekileyo yokupakisha, sithathela ingqalelo izinto ezinje ngemfezeko yomqondiso, ukuhanjiswa kwamandla, kunye nokulula ukwenza.
Qonda iindlela ezininzi zokupakisha zePCB
Ii-PCB ze-Multilayer zinezintlu ezininzi zemathiriyeli eqhubayo ezahlulwe ngamaleko akhuselayo. Inani leeleya kwi-PCB lixhomekeke kubunzima boyilo kunye neemfuno zesekethe. Indlela yokupakisha imisela indlela iileya ezicwangciswe ngayo kwaye zidibene. Makhe sijonge ngakumbi kwiindlela ezahlukeneyo zokupakisha ezidla ngokusetyenziswa kuyilo lwePCB enamaleko amaninzi.
1. I-Enclave stacking
Ukupakishwa kwe-Enclave, okwakwaziwa njengokupakishwa kwe-matrix, yindlela eqhelekileyo esetyenziswayo kuyilo lwePCB enemigangatho emininzi. Olu lungiselelo lokupakisha lubandakanya ukwahlula iileya ezithile kunye ukwenza indawo edibanayo ngaphakathi kwePCB. Ukupakishwa kwe-Enclave kunciphisa i-crosstalk phakathi kwamaqela ahlukeneyo, okukhokelela kwimfezeko yomqondiso engcono. Kwakhona yenza lula inethiwekhi yokusasazwa kwamandla (PDN) uyilo kuba amandla kunye neenqwelomoya zomhlaba zinokudityaniswa ngokulula.
Nangona kunjalo, ukupakishwa kwe-enclave kuzisa imingeni, efana nobunzima bokulandelela iindlela phakathi kwee-enclave ezahlukeneyo. Uqwalaselo olucokisekileyo kufuneka luthathelwe ingqalelo ukuze kuqinisekiswe ukuba iindlela zomqondiso azichatshazelwa yimida yeenclaves ezahlukeneyo. Ukongeza, ukupakishwa kwe-enclave kunokufuna iinkqubo ezintsonkothileyo zokuvelisa, ezinyusa iindleko zemveliso.
2. I-Symmetric stacking
Ukupakishwa kwe-Symmetric yenye indlela eqhelekileyo kuyilo lwe-PCB ye-multilayer. Ibandakanya ulungelelwaniso olulinganayo lweeleya ezijikeleze inqwelomoya esembindini, edla ngokuba namandla kunye neenqwelomoya zomhlaba. Olu lungiselelo luqinisekisa ukuhanjiswa komqondiso kunye namandla kuyo yonke i-PCB, ukunciphisa ukugqwethwa komqondiso kunye nokuphucula imfezeko yesignali.
I-Symmetrical stacking inikezela ngeenzuzo ezifana nokulula kokuvelisa kunye nokutshatyalaliswa kobushushu obungcono. Inokwenza lula inkqubo yokuvelisa i-PCB kwaye inciphise ukwenzeka koxinzelelo lwe-thermal, ngakumbi kwizicelo zamandla aphezulu. Nangona kunjalo, ukupakishwa kwe-symmetric kusenokungafaneleki kuyilo oluneemfuno ezithile zokuthintela okanye ukubekwa kwecandelo elifuna uyilo lwe-asymmetric.
Khetha indlela efanelekileyo yokupakisha
Ukukhetha indlela efanelekileyo yokupakisha kuxhomekeke kwiimfuno ezahlukeneyo zoyilo kunye norhwebo. Nazi ezinye izinto ekufuneka ziqwalaselwe:
1. Ingqibelelo yomqondiso
Ukuba imfezeko yomqondiso yinto ebalulekileyo kuyilo lwakho, ukupakishwa kwe-enclave kunokuba lukhetho olungcono. Ngokuhlukanisa amaqela ahlukeneyo amaleko, kunciphisa amathuba okuphazamiseka kunye ne-crosstalk. Kwelinye icala, ukuba uyilo lwakho lufuna ukuhanjiswa okulinganayo kweempawu, ukupakishwa kwe-symmetrical kuqinisekisa ingqibelelo yophawu olungcono.
2. Ukuhanjiswa kwamandla
Qwalasela iimfuno zokuhambisa amandla kuyilo lwakho. I-Enclave stacking yenza lula uthungelwano lokuhambisa amandla kuba amandla kunye neenqwelomoya zomhlaba zinokudityaniswa ngokulula. I-Symmetric stacking, kwelinye icala, ibonelela ngokusasazwa kwamandla okulinganayo, ukunciphisa ukuhla kwamandla ombane kunye nokunciphisa imiba enxulumene namandla.
3. Amanyathelo okuthintela ukwenziwa
Vavanya imingeni yokuvelisa ehambelana neendlela ezahlukeneyo zokupakisha. Ukupakishwa kwe-Enclave kunokufuna iinkqubo zokwenziwa ezintsonkothileyo ngenxa yesidingo sokuhamba kweekhebhile phakathi kweenclaves. I-Symmetrical stacking ilungelelene kwaye kulula ukuyivelisa, enokuyenza lula inkqubo yokuvelisa kunye nokunciphisa iindleko zokuvelisa.
4. Imiqobo yoyilo oluthile
Olunye uyilo lunokuba nemida ethile eyenza indlela yokupakisha enye ikhetheke kwenye. Umzekelo, ukuba uyilo lwakho lufuna ulawulo oluthile lwe-impedance okanye i-asymmetric component placement, ukupakishwa kwe-enclave kunokufaneleka ngakumbi.
iingcinga zokugqibela
Ukukhetha indlela yokupakisha ye-PCB enemigangatho emininzi efanelekileyo linyathelo elibalulekileyo kwinkqubo yoyilo. Xa uthatha isigqibo phakathi kwe-enclave stacking kunye ne-symmetric stacking, qwalasela izinto ezifana nemfezeko yomqondiso, ukuhanjiswa kwamandla, kunye nokulula kokwenziwa. Ngokuqonda amandla kunye nemida yendlela nganye, unokwandisa uyilo lwakho ukuze uhlangabezane neemfuno zalo ngokufanelekileyo.
Ixesha lokuposa: Sep-26-2023
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