Mune pcb dhizaini, isu tinowanzo shamisika kana pamusoro pePCB inofanira kuvharwa nemhangura? Izvi zvinoenderana nemamiriro ezvinhu, kutanga tinoda kunzwisisa zvakanakira nekuipira pamusoro pemhangura.

Kutanga ngatitarisei zvakanakira copper coating:

1. Nzvimbo yemhangura inogona kupa humwe kudzivirirwa kwekudzivirira uye kudzvinyirira ruzha rwechiratidzo chemukati;
2. Inogona kuvandudza kupisa kunopisa kukwanisa kwe pcb
3. Mukugadzirwa kwePCB, chengetedza huwandu hwehuori hwehuori;
4. Dzivisa PCB warping deformation inokonzerwa nePCB pamusoro pe reflow stress inokonzerwa necopper foil kusaenzana.

Iyo inoenderana pamusoro pekuputira yemhangura ine zvakare inoenderana neyakaipira:

1, ndege yekunze yakavharwa nemhangura ichaparadzaniswa nezvikamu zvepamusoro uye mitsetse yechiratidzo yakakamurwa, kana paine foil yemhangura isina kudzika pasi (kunyanya iyo yakaonda yakareba mhangura yakaputsika), inova antenna, zvichikonzera matambudziko eEMI;

Kune rudzi urwu rweganda remhangura tinogonawo kuchera kuburikidza nebasa re software

2.Kana pini yechikamu yakafukidzwa nemhangura uye yakanyatsobatanidzwa, inokonzera kupisa kurasikirwa nekukurumidza, zvichikonzera kuoma kwekugadzira uye kugadzirisa welding, saka isu tinowanzo shandisa nzira yekuisa mhangura yekubatanidza kwechigamba chezvikamu.

Naizvozvo, ongororo yekuti nzvimbo yacho yakaputirwa nemhangura ine mhedziso dzinotevera:

1, PCB dhizaini yezvikamu zviviri zvebhodhi, copper coating inonyanya kudikanwa, kazhinji pasi pepasi, iyo yepamusoro pechishandiso chikuru uye famba tambo yemagetsi uye chiratidzo mutsara.
2, yepamusoro impedance circuit, analog circuit (analog-to-digital conversion circuit, switching mode power supply conversion circuit), copper coating itsika yakanaka.
3.Kune ma-multi-layer board high-speed digital circuits ane simba rakakwana uye ndege yepasi, cherechedza kuti izvi zvinoreva madhijiti epamusoro-soro, uye kuvhara kwemhangura mumucheka wekunze hakuzounza zvikomborero zvikuru.
4.Kushandiswa kwe-multi-layer board digital circuit, iyo yemukati ine simba rakakwana, ndege yepasi, copper coating in the surface haigoni kuderedza zvakanyanya crosstalk, asi pedyo zvikuru nemhangura ichashandura impedance ye microstrip transmission line, discontinuous mhangura ichaitawo kukanganisa kunokanganisa mutsara wekutumira impedance discontinuity.
5.Kune mabhodhi e-multilayer, apo kureba pakati pe microstrip line uye ndege inotaridzirwa ndeye <10mil, nzira yekudzoka yechiratidzo inosarudzwa zvakananga kune ndege inotaridzirwa iri pasi pemutsara wechiratidzo, panzvimbo yepepa yemhangura yakapoteredza, nekuda kwekudzivirira kwayo kwepasi. Kune maviri-layer mahwendefa ane chinhambwe che60mil pakati pemutsara wechiratidzo nendege yereferensi, chiputiriso chemhangura chakazara munzira yese yemutsara wechiratidzo chinogona kuderedza zvakanyanya ruzha.
6.Kune mabhodhi akawanda, kana pane zvimwe zvigadziriso zvepamusoro uye wiring, usashandise mhangura kuti udzivise mhangura yakawandisa yakaputsika. Kana zvikamu zvepamusoro uye zviratidzo zvepamusoro-soro zvishoma, bhodhi racho harina chinhu, kuitira kuti PCB igadziriswe zvinodiwa, unogona kusarudza kuisa mhangura pamusoro, asi teerera kuPCB dhizaini pakati pemhangura uye inomhanya-mhanya chiratidzo mutsara kanenge 4W kana kupfuura, kudzivirira kushandura hunhu hunhu hwemutsara wechiratidzo.