Mukamapanga matabwa osindikizira ambiri (PCBs), kusankha njira yoyenera yosungiramo ndikofunika kwambiri. Malingana ndi zofunikira za mapangidwe, njira zosiyanasiyana zosungiramo, monga enclave stacking ndi symmetric stacking, zimakhala ndi ubwino wapadera.Mu positi iyi yabulogu, tiwona momwe tingasankhire njira yoyenera yosungira, poganizira zinthu monga kukhulupirika kwa ma sign, kugawa mphamvu, komanso kupanga kosavuta.
Kumvetsetsa njira zingapo zosanjikiza za PCB
Ma PCB a Multilayer amakhala ndi magawo angapo azinthu zosiyanitsidwa ndi zigawo zoteteza. Kuchuluka kwa zigawo mu PCB kumadalira zovuta za mapangidwe ndi zofunikira za dera. Njira yopangira stacking imatsimikizira momwe zigawozo zimapangidwira komanso kulumikizidwa. Tiyeni tione mwatsatanetsatane njira zosiyanasiyana stacking zomwe zimagwiritsidwa ntchito pamipikisano wosanjikiza PCB mapangidwe.
1. Enclave stacking
Enclave stacking, yomwe imadziwikanso kuti matrix stacking, ndi njira yomwe imagwiritsidwa ntchito popanga ma PCB osiyanasiyana. Dongosolo losanjikanali limaphatikizapo kuyika magulu enaake pamodzi kuti apange malo olumikizana mkati mwa PCB. Enclave stacking imachepetsa kuyanjana pakati pa magulu osiyanasiyana osanjikiza, zomwe zimapangitsa kukhulupirika kwazizindikiro. Imathandiziranso mapangidwe amagetsi ogawa mphamvu (PDN) chifukwa ndege zamagetsi ndi pansi zimatha kulumikizidwa mosavuta.
Komabe, kukwera kwa enclave kumabweretsanso zovuta, monga zovuta zotsata njira pakati pa ma enclaves osiyanasiyana. Kusamala kuyenera kuganiziridwa kuti zitsimikizire kuti njira zowonetsera sizikukhudzidwa ndi malire a ma enclaves osiyanasiyana. Kuphatikiza apo, ma enclave stacking angafunike njira zopangira zovuta, zomwe zimawonjezera mtengo wopanga.
2. Symmetric stacking
Symmetric stacking ndi njira ina yodziwika pamapangidwe a multilayer PCB. Zimaphatikizapo makonzedwe ofananira a zigawo zozungulira ndege yapakati, yomwe nthawi zambiri imakhala ndi mphamvu ndi pansi. Kukonzekera kumeneku kumatsimikizira ngakhale kugawidwa kwa chizindikiro ndi mphamvu pa PCB yonse, kuchepetsa kusokonezeka kwa zizindikiro ndikuwongolera kukhulupirika kwa chizindikiro.
Symmetrical stacking imapereka zabwino monga kuphweka kwa kupanga komanso kutulutsa bwino kutentha. Itha kufewetsa njira yopangira PCB ndikuchepetsa kupsinjika kwamafuta, makamaka pamapulogalamu apamwamba kwambiri. Komabe, ma symmetric stacking mwina sangakhale oyenera pamapangidwe omwe ali ndi zofunikira zinazake kapena kuyika chigawo komwe kumafunikira masanjidwe asymmetric.
Sankhani njira yoyenera stacking
Kusankha njira yoyenera yosungiramo zinthu kumatengera zofunikira zosiyanasiyana zamapangidwe ndi malonda. Nazi zina zofunika kuziganizira:
1. Kukhulupirika kwa chizindikiro
Ngati kukhulupirika kwa chizindikiro ndichinthu chofunikira kwambiri pakupanga kwanu, kusungitsa kwa enclave kungakhale chisankho chabwinoko. Popatula magulu osiyanasiyana a zigawo, zimachepetsa kuthekera kwa kusokoneza ndi crosstalk. Kumbali ina, ngati mapangidwe anu amafunikira kugawidwa koyenera kwa ma sigino, ma symmetrical stacking amatsimikizira kukhulupirika kwa chizindikiro.
2. Kugawa mphamvu
Ganizirani zofunikira zogawa mphamvu zamapangidwe anu. Enclave stacking imathandizira maukonde ogawa mphamvu chifukwa magetsi ndi ndege zapansi zimatha kulumikizidwa mosavuta. Symmetric stacking, kumbali ina, imapereka kugawa kwamagetsi moyenera, kuchepetsa kutsika kwamagetsi ndikuchepetsa zovuta zokhudzana ndi mphamvu.
3. Njira zodzitetezera pakupanga
Ganizirani zovuta zopanga zomwe zimagwirizanitsidwa ndi njira zosiyanasiyana zosungira. Enclave stacking ingafunike njira zopangira zovuta kwambiri chifukwa chofuna kuyendetsa ma cabling pakati pa ma enclaves. Symmetrical stacking ndi yolinganiza bwino komanso yosavuta kupanga, yomwe ingapangitse njira zopangira mosavuta komanso kuchepetsa ndalama zopangira.
4. Zopinga za mapangidwe enieni
Mapangidwe ena amatha kukhala ndi malire enieni omwe amapangitsa njira yoduliramo imodzi kukhala yabwino kuposa ina. Mwachitsanzo, ngati mapangidwe anu amafunikira kuwongolera kwapadera kapena kuyika kwa gawo la asymmetric, kuyika kwa enclave kungakhale koyenera.
maganizo omaliza
Kusankha njira yoyenera yamagulu angapo a PCB ndi gawo lofunikira pakukonza. Mukasankha pakati pa ma enclave stacking ndi ma symmetric stacking, lingalirani zinthu monga kukhulupirika kwa ma sign, kugawa mphamvu, komanso kupanga kosavuta. Pomvetsetsa mphamvu ndi zofooka za njira iliyonse, mukhoza kukonzanso mapangidwe anu kuti akwaniritse zofunikira zake bwino.
Nthawi yotumiza: Sep-26-2023
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