Chii chinonzi copper coating?

Iyo inonzi kudira kwemhangura ndeye kushandisa nzvimbo isina kushandiswa pa PCB senzvimbo yereferensi uye woizadza nemhangura yakasimba.Idzi nzvimbo dzemhangura dzinonziwo kuzara kwemhangura.

Kukosha kwekuputira kwemhangura ndiko kuderedza kusagadzikana kwetambo yepasi uye kuvandudza kugona kwekudzivirira-kupindira;kuderedza kudonha kwemagetsi uye kuvandudza kushanda kwesimba remagetsi;kana yakabatana netambo yepasi, inogonawo kuderedza loop nzvimbo.

Zvakare nechinangwa chekuita kuti PCB ive isina kuremara sezvinobvira panguva yekutengesa, vazhinji vanogadzira PCB vanozodawo kuti vagadziri vePCB vazadze nzvimbo yakavhurika yePCB nemhangura kana grid-yakafanana newaya dzepasi.Kana mhangura isina kubatwa zvakanaka, ichaita Kana iyo pfuma isingakodzeri kurasikirwa, iko copper yemhangura "yakawanda zvakanakira pane zvisingabatsiri" kana "zvisina kunaka kupfuura zvakanakira"?

Munhu wose anoziva kuti munyaya yehuwandu hwepamusoro, iyo yakagoverwa capacitance ye wiring pane yakadhindwa redunhu bhodhi ichashanda.Kana kureba kwakakura kupfuura 1/20 yeaya inowirirana yewavelength yeruzha frequency, antenna mhedzisiro ichaitika, uye ruzha ruchaburitswa kuburikidza newaya.Kana paine mhangura isina kudzika pasi yakadururwa muPCB, kudira kwemhangura kunova chishandiso chekuparadzira ruzha.

Nokudaro, munharaunda yepamusoro-frequency, usafunga kuti tambo yepasi yakabatanidzwa pasi pane imwe nzvimbo.Iyo pasi ndege ye laminate "yakanaka pasi".Kana chifukidzo chemhangura chikabatwa zvakanaka, chifukidzo chemhangura hachingowedzera ikozvino, asiwo chinotora chikamu cheviri chekudzivirira kupindira.

Zvimiro zviviri zvemhangura yemhangura
Pane kazhinji nzira mbiri dzekutanga dzekudira mhangura, dzinoti hombe-nzvimbo yekudira mhangura uye grid mhangura.Inowanzo bvunzwa kana yakakura-nzvimbo yemhangura yemhangura iri nani kana grid kudira mhangura iri nani.Hazvina kunaka kuita generalize.

Sei?Yakakura-nzvimbo yemhangura yemhangura ine mabasa maviri ekuwedzera ikozvino uye kudzivirira.Nekudaro, kana yakakura-nzvimbo yemhangura yakashongedzwa yakashandiswa kuzunguza solder, bhodhi rinogona kusimudza uye kunyange blisters.Nokudaro, nokuda kwemhangura yemhangura yakakura, ma grooves akawanda anowanzovhurwa kuti asunungure kuputika kwefoiri yemhangura.Sezvinoratidzwa pasi apa:

Iyo mhangura-yakapfeka gridi inonyanya kushandiswa pakudzivirira, uye mhedzisiro yekuwedzera ikozvino inoderedzwa.Kubva pakuona kwekupisa kupisa, grid yakanaka (inoderedza kupisa kwemhangura) uye inoita basa rekudzivirira kwemagetsi kune imwe nhanho.Kunyanya kumatunhu akadai sekubata, sezvakaratidzwa mumufananidzo uri pazasi:

Izvo zvinofanirwa kutaurwa kuti iyo grid inoumbwa nematehwe mune yakadzama nzira.Isu tinoziva kuti kudunhu, hupamhi hwekutsvagisa hunoenderana ne "kureba kwemagetsi" kweiyo inoshanda frequency yedunhu redunhu (iyo chaiyo saizi inokamurwa neiyo Dijitari frequency inoenderana neyekushanda frequency inowanikwa, ona mabhuku ane hukama kuti uwane mamwe mashoko. )

Kana iyo frequency yekushanda isiri yakanyanya kukwirira, pamwe basa reiyo grid line harina kunyatsojeka.Kamwe urefu hwemagetsi hunoenderana nehuwandu hwekushanda, hwakaipa kwazvo.Iwe uchaona kuti PCB haishande zvachose, uye iyo yekukanganisa system iri kushanda kwese kwese.chiratidzo che.

Chirevo ndechekusarudza maererano nemamiriro ekushanda kwebhodhi redunhu rakagadzirwa, usabatirira pane chimwe chinhu.Nokudaro, iyo yepamusoro-frequency circuit ine chido chepamusoro chezvikwata zvakawanda-chinangwa chekudzivirira-kupindira, uye pasi-frequency circuit ine guru guru remazuva ano uye dzimwe dzinowanzoshandiswa mhangura yakakwana.

# FR4 PCB mutengesi