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PCB ndiyo chidimbu chebhodhi redunhu rakadhindwa muChirungu. Maseketi akadhindwa anowanzo kunzi conductive mapatani akadhindwa maseketi, akadhindwa zvikamu, kana musanganiswa wezviviri, zvichibva pane zvakafanotemerwa dhizaini pane insulating zvinhu. Iyo conductive pateni inopa kubatana kwemagetsi pakati pezvikamu pane insulating substrate inonzi yakadhindwa dunhu. Nenzira iyi, matunhu akadhindwa kana mapuranga akapedzwa ematunhu akadhindwa anonzi akadhindwa edunhu mabhodhi, anozivikanwawo semabhodhi akadhindwa kana akadhindwa edunhu mabhodhi. PaPCB inonyanya kukosha, zvikamu zvakanangidzirwa kune rimwe divi uye waya dzakanangidzirwa kune rimwe divi. Nekuti waya dzinongoonekwa kudivi rimwe chete, tinodaidza rudzi urwu rwePCB serimwe divi PCB. Nekuti single sided PCBs ine zvakawanda zvakaomesesa dhizaini mudhizaini, sezvo iine divi rimwe chete, wiring haigone kupindirana uye inofanirwa kufambiswa yakazvimiririra.

Flexible PCB yakashandiswa zvakanyanya mumusika uye yave chinhu chakakosha muindasitiri yemagetsi. Inogona kuchinjika kune akasiyana maapplication ePCB anochinjika, akadai semidziyo inopfekeka, nhengo dzakagadzirwa, midziyo yekurapa, RFID modules, etc. Rigid flexible PCB inotsiva PCB yakaoma, yakagadzirwa nePCB zvinhu asi ine maitiro ekukotama. Iko kusanganiswa kwePCB yakaoma uye inoshanduka inonyanya kushandiswa kune nharembozha uye zvigadzirwa zvinopfekwa. Ose ari maviri semi anochinjika uye akaomesesa anochinjika maPCB anopa akasimba dhizaini nekuwedzera kuchinjika kufamba kana kuzunza zvigadzirwa.

Rigid inochinjika maPCB anogona kupetwa, kupetwa, kana kutenderedzwa, uye obva abatanidzwa mune zvakasiyana zvigadzirwa. Ivo vanopa nyore, kuchinjika, uye kufamba kune inotakurika zvishandiso. Zvinosanganisira makadhi ekuwedzera uye mabhatiri pamalaptops kana desktop makomputa. Iyo semi inochinjika PCB inogona kukotama kana kukotama, asi haina kuchinjika seyakaomarara inochinjika musanganiswa bhodhi. Iwo zvakare anoshanda anotakurika mudziyo mhinduro nekuti haidi kuomarara kubatanidza munzvimbo dzine vanhu vakawanda vanofamba netsoka, sezvo vachigona kukotama pasina kutyora kana kupatsanura. Iyi blog positi ichaongorora mune akasiyana maapplication eiyo yakasimba inoshanduka PCB uye semi inoshanduka PCB dhizaini.

Yakadhindwa Circuit Board (PCB), inozivikanwawo sePrinted Circuit Board kana Printed Circuit Board. Multilayer akadhindwa mapuranga anoreva mapuranga akadhindwa ane anopfuura maviri akaturikidzana, ayo anoumbwa netambo dzekubatanidza pane akati wandei akaturikidzana e insulating substrates uye solder pads anoshandiswa kuunganidza uye welding zvinhu zvemagetsi. Havasi ivo chete vane basa rekuitisa masekete ega yega yega, asi zvakare vane basa rekutangisana.

PCB multilayer board inoreva bhodhi redunhu rakasiyana-siyana rinoshandiswa muzvigadzirwa zvemagetsi, iro rinoshandisa mamwe mabhodhi ewaya maviri kana maviri. Bhodhi redunhu rakadhindwa rinoshandisa imwe yakapetwa-mativi emukati dhizaini, maviri ega-side mativi ekunze akaturikidzana, kana maviri maviri-mativi emukati akaturikidzana, uye maviri ega-sided ekunze akaturikidzana, uye akabatana ne conductive giraidhi zvinoenderana nezvinodiwa nedhizaini kuburikidza nekuisa masisitimu uye. insulating bonding zvinhu, inova mana kana matanhatu akaturikidzana akadhindwa redunhu bhodhi, inozivikanwawo seyakawanda-layer yakadhindwa redunhu bhodhi.

Iyo simbi yekuvharisa base inoumbwa nesimbi base layer, insulation layer, uye copper clad circuit layer. Isimbi inotenderera bhodhi zvinhu izvo zvemagetsi general components, zvinosanganisira thermal insulation layer, simbi ndiro, uye simbi foil. Iyo ine yakakosha magineti conductivity, yakanakisa kupisa kupisa, yakakwira mechanical simba, uye yakanaka yekugadzirisa kuita.

Iyo simbi insulation substrate inoumbwa nesimbi substrate layer, insulation layer, uye copper clad circuit layer. Iyo yepamusoro yemhangura yemhangura yakavharwa yedunhu layer, iyo inotanga ine dhizaini yemhangura. Zvinoenderana nemagetsi ekubatanidza zvinodiwa, dunhu rinogona kusvibiswa mukati medunhu rinodiwa. Iyo simba transistor musimboti, mutyairi control chip, nezvimwe zvinogona kutengeswa zvakananga pane yemhangura yakavharwa yedunhu layer. Kuti ufambise welding uye kudzivirira oxidation, solder pad yakaputirwa neTi, Pt, Cu, Au uye mamwe egoridhe matete mafirimu, ane ukobvu saizi ye35, 50, 70105140 microns; Iyo yepakati layer ndeye insulating yepakati layer, inowanzo gadzirwa ne epoxy girazi faibha jira rinonamira rine yakanaka thermal conductivity, epoxy resin, kana organic dielectric firimu rinozadzwa neceramic zvinhu. Ukobvu hwayo hwakakamurwa kuita mana zvirevo: 50, 75, 100, 150 microns.

High frequency PCB board inoreva rudzi rwakakosha rwedunhu bhodhi rine yakakwira magineti frequency, inoshandiswa muminda yeakakwira frequency (frequency yakakura kupfuura 300MHz kana wavelength isingasviki 1 mita) uye microwave (frequency yakakura kupfuura 3GHz kana wavelength isingasviki 0.1 metres) . Ibhodhi redunhu rinogadzirwa pane microwave substrate mhangura yakapfeka bhodhi uchishandisa mamwe maitiro eakajairwa akaomesesa edunhu bhodhi kugadzira kana yakakosha nzira dzekugadzirisa.

Iyo inorema mhangura PCB chikamu chikamu chiri kukura chekugadzirwa kwedu. Kuti titsigire chikamu ichi chakakosha, tiri kugadzira hukama hwenguva refu nemafekitori akati wandei ayo akanyatsosarudzwa mukutsvaga kwedu.

HDI PCB (High Density Interconnect PCB) ndeyepamusoro-density interconnect redunhu bhodhi rinoshandiswa kuwana mamwe kubatanidza uye kusimba kwepamusoro munzvimbo shoma. Inowanzo shandiswa mumidziyo yakaoma yemagetsi yakadai sema smartphones, mahwendefa, uye makomputa.

Iyo HDI PCB yedunhu bhodhi inotora yakatevedzana yemhando yepamusoro yekugadzira matekinoroji, senge madiki maseketi, mapofu akavigwa maburi, akamisikidzwa resistors, uye interlayer interlayer. Aya matekinoroji anogonesa HDI PCBs kuti iwane yakakwira yekubatanidza density uye yakanyanya kuomarara dhizaini dhizaini muhukuru hudiki.

Nekuda kwemaitiro ekugadzira uye yakakwirira chaiyo zvinodiwa zveHDI PCB edunhu mabhodhi, mutengo wekugadzira weHDI PCB unowanzo kwira uchienzaniswa neakajairwa edunhu mabhodhi. Izvi zvinodaro nekuti HDI PCB inoda kushandiswa kwemaitiro akaomarara uye michina yepamberi kuti iwane kusimba kwavo kwakanyanya uye kuoma.

Pamusoro pezvo, dhizaini uye marongero eHDI PCB edunhu mabhodhi anodawo zvimwe zviwanikwa zveinjiniya uye nguva yekudyara kuti ive nechokwadi chekuvimbika uye kuita kwedunhu.

Naizvozvo, kazhinji, mutengo wekugadzira weHDI PCB wedunhu mabhodhi wakakwira kupfuura iwo echinyakare edunhu mabhodhi. Nekudaro, iwo chaiwo mutengo unopesvedzera zvinhu zvinokanganiswawo nezvimwe zvinhu zvakawanda, senge nhamba inodiwa yematanho, mutsara wakafara / nzvimbo, aperture zvinodiwa, nezvimwe.

FPC (Flexible Circuit Board) imhando yePCB, inozivikanwawo se "soft board". FPC yakagadzirwa nema substrates anochinjika senge polyimide kana polyester firimu, iro rine zvakanakira kukwirisa wiring density, huremu huremu, hutete hwakatetepa, kuchinjika, uye kuchinjika kwakanyanya. Inogona kumira mamiriyoni emabhenji ane simba pasina kukuvadza waya, uye inogona kufamba uye kuwedzera maererano nemamiriro ekugadzirisa zvinodiwa kuti iwane matatu-dimensional gungano, kuwana kubatanidzwa kwechikamu chegungano uye kubatanidza waya. Iine zvikomborero izvo mamwe marudzi emapuranga ematunhu asingagoni kuenzanisa.

FPC inoshandiswa zvakanyanya mumakina anonzwa maturusi nekuti kuchinjika kwayo kunobvumira mabhodhi edunhu kuti arambe vibration. Flexible PCBs akasimba kupfuura echinyakare edunhu mabhodhi, asi maitiro avo ekugadzira ane hanya uye akaomarara.

Kaviri-mativi PCB bhodhi imhando yakakosha yePCB bhodhi mumusika wedunhu redunhu. Kune maviri-mativi ePCB mabhodhi ane simbi base, Hi-Tg inorema yemhangura foil redunhu bhodhi, yakatsetseka uye inomonereka kaviri-mativi PCB mabhodhi, yakakwirira-frequency PCB mabhodhi, yakasanganiswa dielectric base yakakwirira-frequency kaviri-mativi ePCB mabhodhi, nezvimwe. inokodzera huwandu hwakawanda hwemaindasitiri epamusoro-soro akadai senhare, magetsi, makomputa, kutonga kwemaindasitiri, zvigadzirwa zvedhijitari, zviridzwa zvesainzi uye zvekudzidzisa, midziyo yekurapa, mota, kudzivirira kwemuchadenga, nezvimwe.

Vazhinji vashandisi vePCBs vanowana ceramic PCBs vane mukana pane echinyakare maPCB akagadzirwa nezvimwe zvinhu. Iyi mukana imhaka yekuti ceramic PCBs inopa akakodzera substrates yemaseketi emagetsi ane yakakwira yekupisa conductivity uye yakaderera coefficient yekuwedzera kwekupisa (CTE).

Iyo ceramic PCB inoshanda zvakanyanya uye inogona kutsiva yakazara yechinyakare PCB ine isina kuoma dhizaini uye kuwedzera kuita. Iwe unogona kuzvishandisa muzvigadzirwa zvakawanda, seyepamusoro-simba maseketi, chip-on-board modules uye padyo sensors.