Yakadhindwa Circuit Boards (PCBs) chikamu chakakosha chemidziyo yemagetsi yemazuva ano, inoshanda sehwaro hwezvikamu zvinoita kuti zvishandiso izvi zvishande. MaPCB anosanganisira substrate material, inowanzo gadzirwa nefiberglass, ine maconductive nzira dzakamisikidzwa kana kudhindwa pamusoro kuti abatanidze akasiyana emagetsi zvikamu. Chimwe chinhu chakakosha chekugadzira PCB plating, iyo inoita basa rakakosha mukuona kushanda uye kuvimbika kwePCB. Muchinyorwa chino, isu tichaongorora maitiro ePCB plating, kukosha kwayo, uye marudzi akasiyana eplating anoshandiswa mukugadzira PCB.
Chii chinonzi PCB Plating?
PCB plating ndiyo nzira yekuisa chidimbu chesimbi pamusoro pePCB substrate uye nzira dzekufambisa. Iyi plating inoshandisa zvinangwa zvakawanda, zvinosanganisira kukwidziridza mafambisirwo enzira, kuchengetedza nzvimbo dzakafumurwa dzemhangura kubva pakusvibiswa uye mukuora, uye nekupa nzvimbo yekushongedza zvinhu zvemagetsi pabhodhi. Iyo plating maitiro anowanzo kuitwa uchishandisa akasiyana electrochemical nzira, senge electroless plating kana electroplating, kuti uwane ukobvu hunodiwa uye zvimiro zveiyo yakapfava layer.
Kukosha kwePCB Plating
Kuiswa kwePCBs kwakakosha kune zvikonzero zvakati wandei. Kutanga, inovandudza kufambiswa kwenzira dzemhangura, kuve nechokwadi kuti zviratidzo zvemagetsi zvinogona kufamba zvakanaka pakati pezvikamu. Izvi zvinonyanya kukosha mu-high-frequency uye high-speed applications apo kutendeseka kwechiratidzo kunokosha. Pamusoro pezvo, iyo yakapfekwa dhizaini inoita sechipingamupinyi kurwisa zvakatipoteredza zvinhu zvakaita sehunyoro uye zvinosvibisa, izvo zvinogona kukanganisa kuita kwePCB nekufamba kwenguva. Uyezve, iyo plating inopa nzvimbo yekushambadzira, ichibvumira zvikamu zvemagetsi kuti zvibatanidzwe zvakachengeteka pabhodhi, zvichigadzira hukama hwemagetsi hwakavimbika.
Mhando dzePCB Plating
Kune akati wandei marudzi eplating anoshandiswa mukugadzira PCB, imwe neimwe iine yakasarudzika zvivakwa uye mashandisirwo. Mamwe emhando dzakajairika dzePCB plating dzinosanganisira:
1. Electroless Nickel Immersion Gold (ENIG): ENIG plating inoshandiswa zvakanyanya mukugadzirwa kwePCB nekuda kwekunaka kwayo kwekudzivirira uye kutengesa. Iyo ine chidimbu chakatetepa che electroless nickel inoteverwa nejira rekunyudza goridhe, ichipa rakati sandara uye rakatsetseka pamusoro pekutengesa uku ichidzivirira iri pasi pemhangura kubva kune oxidation.
2. Electroplated Gold: Electroplated gold plating inozivikanwa nokuda kwemaitiro ayo anoshamisa uye kuramba kusvibiswa, zvichiita kuti ive yakakodzera kune zvikumbiro apo kuvimbika kwepamusoro uye hupenyu hurefu hunodiwa. Inowanzoshandiswa mumagetsi ekupedzisira emagetsi uye kushandiswa kwemhepo.
3. Electroplated Tin: Tin plating inowanzoshandiswa sechinhu chinodhura-chinoshanda chePCBs. Iyo inopa yakanaka solderability uye corrosion kuramba, ichiita kuti ive yakakodzera kune zvakajairwa-chinangwa maapplication uko mutengo chinhu chakakosha.
4. Electroplated Silver: Silver plating inopa yakanakisa conductivity uye inowanzoshandiswa mu-high-frequency applications apo kutendeseka kwechiratidzo kunokosha. Zvisineyi, inonyanya kushatisa kana ichienzaniswa nekuisa goridhe.
The Plating Process
Iyo plating process inowanzo tanga nekugadzirira kwePCB substrate, iyo inosanganisira kuchenesa uye kumisa nzvimbo yepasi kuti ive nechokwadi chekunamira kwakaringana kweiyo yakapfava layer. Kana iri electroless plating, kemikari yekugezera ine simbi yekuputira inoshandiswa kuisa danda rakatetepa pane substrate kuburikidza necatalytic reaction. Kune rimwe divi, electroplating inosanganisira kunyudza PCB mumhinduro ye electrolyte uye kupfuudza magetsi mairi kuti isa simbi pamusoro.
Munguva yekugadzira, zvakakosha kudzora ukobvu uye kufanana kweiyo yakapfava layer kuti isangane nezvinodiwa chaizvo zvePCB dhizaini. Izvi zvinowanikwa kuburikidza nekunyatso kudzora kweiyo plating paramita, senge plating mhinduro kuumbwa, tembiricha, density iripo, uye nguva yekuputira. Matanho ekudzora emhando, anosanganisira ukobvu kuyerwa uye adhesion bvunzo, anoitwa zvakare kuti ave nechokwadi chekutendeseka kweiyo plated layer.
Matambudziko uye Mafungiro
Nepo PCB plating ichipa akawanda mabhenefiti, kune mamwe matambudziko uye kufunga kwakabatana nekuita. Rimwe dambudziko rakajairika kuwana yunifomu yekuisa ukobvu mukati mePCB yese, kunyanya mumagadzirirwo akaomarara ane akasiyana maficha densities. Zvakakodzera dhizaini kufunga, sekushandiswa kwemasikisi eplating uye inodzorwa impedance traces, zvakakosha kuti uve nechokwadi chekuisa yunifomu uye kushanda kwemagetsi kunoenderana.
Kufunga kwezvakatipoteredza kunoitawo basa rakakosha muPCB plating, sezvo makemikari nemarara anogadzirwa panguva yekuputira anogona kuve nemhedzisiro yezvakatipoteredza. Nekuda kweizvozvo, vazhinji vagadziri vePCB vari kutora zvakatipoteredza plating maitiro uye zvinhu kuti vaderedze kukanganisa kwezvakatipoteredza.
Uye zvakare, kusarudzwa kwezvinhu zveplating uye ukobvu kunofanirwa kuenderana nezvinodiwa zvePCB application. Semuyenzaniso, yakakwirira-yekumhanya dhijitari maseketi angangoda kudzika madziro kuti aderedze kurasikirwa kwechiratidzo, nepo RF uye microwave maseketi anogona kubatsirwa kubva kune akakwenenzverwa plating zvinhu kuchengetedza chiratidzo chekuvimbika pamafafitera epamusoro.
Ramangwana Trends muPCB Plating
Sezvo tekinoroji iri kuramba ichifambira mberi, munda wePCB plating uri kusimukirawo kuti usangane nezvinodiwa zvechizvarwa chinotevera michina yemagetsi. Imwe nzira inocherekedza kugadzirwa kweyepamusoro plating zvinhu uye maitiro anopa kuvandudzwa kwekuita, kuvimbika, uye kuchengetedza kwezvakatipoteredza. Izvi zvinosanganisira kuongororwa kweimwe nzira yekuisa simbi uye kupera kwepamusoro kugadzirisa kuomarara kuri kukura uye miniaturization yezvinhu zvemagetsi.
Uyezve, kubatanidzwa kwemaitiro epamusoro ekuputira, senge pulse uye reverse pulse plating, iri kuwana traction kuti iwane yakakwenenzverwa maficha saizi uye yakakwirira chikamu ratios muPCB dhizaini. Aya matekiniki anogonesa kunyatso kudzora pamusoro peiyo plating process, zvichikonzera kuwedzera kufanana uye kuenderana muPCB yese.
Mukupedzisa, PCB plating chinhu chakakosha chekugadzira PCB, ichiita basa rakakosha mukuona kushanda, kuvimbika, uye kuita kwemidziyo yemagetsi. Iyo plating process, pamwe chete nesarudzo yeplating zvinhu uye matekiniki, inokanganisa zvakananga magetsi uye mekiniki zvivakwa zvePCB. Sezvo tekinoroji iri kuramba ichifambira mberi, kuvandudzwa kwezvigadziriso zveplating zvichave zvakakosha kuzadzisa zvinodiwa neindasitiri yemagetsi, kufambisa kuenderera mberi uye hunyanzvi mukugadzira PCB.
T: PCB Plating: Kunzwisisa Maitiro uye Kukosha Kwayo
D: Yakadhindwa Circuit Boards (PCBs) chikamu chakakosha chemidziyo yemagetsi yemazuva ano, inoshanda senheyo yezvikamu zvinoita kuti zvishandiso izvi zvishande. MaPCB anosanganisira substrate material, inowanzo gadzirwa nefiberglass, ine maconductive nzira dzakamisikidzwa kana kudhindwa pamusoro kuti abatanidze akasiyana emagetsi zvikamu.
K: pcb plating
Nguva yekutumira: Aug-01-2024
