Chii chinonzi Prepreg muCircuit Board Manufacturing

Mubasa rekugadzira maPCB, zvinhu zvinoshandiswa zvakakosha pakushanda uye kuvimbika kwechigadzirwa chekupedzisira. Chimwe chezvinhu zvakakosha zvakadaro iprepreg, iyo inoita basa rakakosha mukuvaka maPCB ane layer yakawanda . Kunyangwe uri kugadzira PCB iri nyore ine layer imwe chete kana bhodhi redunhu rakaoma, rine frequency yakawanda, rine layer yakawanda, kunzwisisa basa reprepreg kwakakosha pakuona kushanda kwebhodhi, kugara kwenguva refu, uye mhando yese. Asi chii chaizvo chinonzi prepreg, uye nei ichikosha mukugadzira maPCB eprepreg?

Kutsanangura Prepreg muPCB Manufacturing

Masisitimu ekubatanidza zvinhu zvakasiyana-siyana akadai seTaconic fastRise 27 prepreg anofanira kutaurwa nemakona ari pamberi, kuvakwa kweply, copper topography, uye chinangwa chakadzvanywa che dielectric.

Prepreg inomirira kuti "pre-impregnated," izwi rinoreva zvinhu zvakaumbwa zvakaiswa pamwe neresin. Resin iyi inowanzova epoxy, kunyange mamwe ma resin akaita se phenolic uye polyimide anogona kushandiswa zvichienderana nekushandiswa chaiko. Maitiro ekugadzira prepreg anosanganisira kunyura chinhu chine fibrous-kazhinji fiberglass, kunyangwe kabhoni fiber uye zvimwe zvinhu zvakakwirira-simba zvinogona kushandiswa-mu resin. Musanganiswa uyu unobva warapwa zvishoma, uchisiya resin iri tacky kana B-stage mamiriro.

Chikonzero chinoita kuti prepreg ishandiswe zvakanyanya mukugadzira maPCB imhaka yekusanganiswa kwayo kwakasimba, kuputira magetsi, uye nyore kushandisa. Prepreg inoshanda sechinhu chinosunga, ichivimbisa kuti zvikamu zvePCB ine layer yakawanda zvakabatana zvakachengeteka uku ichipa kuputira magetsi pakati pazvo. Prepreg inowanzo shandiswa pakati pezvikamu zvemhangura kugadzira kubatana kwakasimba uye kwakavimbika kunoita kuti PCB ikwanise kutsungirira masaini epamusoro-soro, kupisa, uye kushushikana kwemakanika.

Basa rePrepreg muMulti-Layer PCB Manufacturing

Zvivakwa zvisingafambi zvakaita seIsola P25N PCB lamination zvinoda kuti pasuru yekudhinda, kudiwa kweresin, maburi, uye zvinangwa zvekunyoresa zviongororwe zvisati zvashandiswa.

A prepreg PCB inowanzo sanganisira akawanda akaturikidzana emhangura, insulation, uye prepreg zvinhu. Iyo prepreg inoshanda akati wandei akakosha mabasa mukuvaka kwePCB:

• • Kuisa Magetsi: Prepreg inoshanda sedhielectric zvinhu, zvichireva kuti inomisa mhangura zvidimbu kubva kune imwe. Izvi zvakakosha mukudzivirira kupindira kwemagetsi kusingadikanwi pakati pezviratidzo pazvikamu zvakasiyana, kuchengetedza kuvimbika kwekugadzirwa kwedunhu.
  • Mechanical Simba uye Kusimba: Prepreg inoitawo basa rinokosha mukupa simba remagetsi. Iyo fiberglass fiber yakamisikidzwa muresin inopa simba uye kusimba, izvo zvinodiwa pakugadzikana kwemuviri wePCB. Prepreg inobatsira bhodhi kuramba deformation pasi pemakinika kushushikana, kukotama, kana kuratidzwa kune tembiricha yakanyanyisa.
  • Layer Bonding: Iyo resin mu prepreg yakagadzirirwa kubatanidza akasiyana siyana ePCB. Munguva yekugadzira, resin inoyerera uye inoomesa, ichigadzira chisungo chakasimba, chakasimba pakati pemhangura yemhangura, kudzivirira delamination, uye kusimudzira hunhu hwese hwePCB.
  • Kugadzirisa Hukobvu uye Zvivakwa: Imwe yemabhenefiti akakosha e prepreg kuita kwayo kwakasiyana-siyana. Prepreg mapepa anogona kugadzirwa muhupamhi hwehukobvu kusangana nezvinodiwa zvePCB dhizaini. Uyezve, prepregs inogona kugadzirwa kuti ipe zvimwe zvivakwa zvakaita seyepamusoro-tembiricha kuramba kana kukwidziridzwa zvivakwa zvemagetsi, zvichiita kuti ive yakakodzera kushandiswa mumaindasitiri akasiyana siyana, kubva kumagetsi evatengi kusvika kune aerospace uye telecommunication.

Prepreg PCB Mhando uye Zvishandiso

Pabasa re RF rakaita zvidimbu zvakawanda, chigadzirwa chakakosha che laminate chinorasikirwa zvishoma inofanira kusarudzwa nesystem iri pedyo ye laminate uye geometry ye impedance yakapedzwa, kwete sezita rezvinhu zvakaparadzana.

Kune mhando dzakasiyana dzezvinhu zve prepreg zviripo, fiberglass ndiyo inonyanya kushandiswa kusimbisa. Zvisinei, zvichienderana nekushandiswa kwayo, zvimwe zvinhu zvakaita se polyimide , Teflon ( PTFE ), kana ceramic composites zvinogona kushandiswa. Rudzi rwe resin nezvinhu zvekusimbisa zvakasarudzwa zve prepreg zvinokanganisa hunhu hwePCB hwemagetsi, kupisa, uye michina.

Iyo inonyanya kushandiswa prepreg inoshandiswa mukugadzira PCB ndeye FR4, iri fiberglass-based material ine epoxy resin. FR4 prepregs inoshandiswa zvakanyanya mumagetsi evatengi nekuti inopa chiyero chakanaka chemutengo, kuita, uye kuwanikwa. Nekudaro, kune zvehunyanzvi maapplication, akadai seyepamusoro-kumhanya kana akakwira-simba zvemagetsi, mamwe prepregs senge polyimide anogona kusarudzirwa iwo epamusoro kugadzikana kwekupisa.

Iyo Manufacturing process yePrepreg PCBs

Kugadzira prepreg PCB kunosanganisira akati wandei chaiwo matanho ekuona kuti chigadzirwa chekupedzisira chakavimbika, chakasimba, uye chinosangana nemagadzirirwo ekugadzira. Pazasi pane tarisiro yeyakajairwa yekugadzira maitiro e prepreg PCBs:

Kugadzirira Zvinhu : Kutanga, zvinhu zve prepreg zvinosarudzwa zvichienderana nezvinodiwa zvemagadzirirwo. Machira e fiberglass kana machira e fiber akarukwa anoiswa resin, obva anyatsogadzirwa nenzira inozivikanwa se "B-staging." Prepreg yava kunamira asi haina kuoma zvakakwana, zvichiita kuti ikwanise kubatana zviri nyore nedzimwe jira panguva yekuiswa lamination.

Kuisa maPCB muzvikamu zvakasiyana-siyana: Zvikamu zvePCB zvinorongwa nenzira yakatarwa. Zvikamu izvi zvinowanzo sanganisira zvikamu zvemhangura, prepreg, uye dzimwe nguva zvimwe zvinhu zve dielectric. Kurongeka kwekuisa maPCB kunoenderana nekugadzirwa kwePCB chaiyo—maPCB ane zvikamu zvakawanda anogona kunge aine zvikamu zvakasiyana-siyana zve prepreg zvakasanganiswa nemhangura.

Kuravira : Matanda akaunganidzwa, kusanganisira prepreg, anoiswa muchina wekunamira apo kupisa nekumanikidzwa zvinoshandiswa. Kupisa kunoita kuti resin iri mu prepreg inyungudike, zvichiita kuti ikwanise kubatanidza matanda emhangura pamwe chete. Maitiro aya anorapawo resin zvizere, zvichiita kuti chimiro chePCB chisimbe.

Kuboorera neKucheka : Mushure mekunge PCB yaiswa laminated, maburi anoboorerwa ezvikamu uye mavias. Maburi aya anobva aputirwa nemhangura kuti ave nechokwadi chekuti magetsi anoramba aripo. PCB inochekwawo kusvika pachimiro chaunoda, uye mipendero inopedzwa kudzivirira kukuvara panguva yekubata.

Kugadzirisa Kwekupedzisira : Mushure mekuboora nekucheka, PCB inopinda muitiro wekupedzisira wekugadzirisa kuti ive nechokwadi chekuti resin iri mu prepreg yaoma zvakakwana. Izvi zvinovimbisa kuti bhodhi rakasimba, rakagadzikana, uye rinokwanisa kumira mumamiriro ekushandiswa kwezuva nezuva.

Mabhenefiti ePrepreg muPCB Manufacturing

Iko kushandiswa kwe prepreg mukugadzira PCB kunopa akati wandei akasiyana mabhenefiti, zvichiita kuti ive sarudzo yakasarudzika yepamusoro-inoshanda maPCB:

Kusimbiswa Kwechiratidzo Kwakawedzerwa : Prepreg chinhu chakanaka kwazvo che dielectric, chinobatsira kuchengetedza kusimba kwezviratidzo zve high-frequency. Mumacircuits ekumhanya kwepamusoro, kusimba kwechiratidzo kwakakosha, uye prepreg inovimbisa kuti zvikamu zvemhangura muPCB hazvipindirani, zvichikonzera kutapurirana kwechiratidzo kwakavimbika.

Kugadzikana kweThermal : Resin inoshandiswa muzvinhu zve prepreg yakagadzirwa kuti itsungirire kushanduka-shanduka kwetembiricha. Mumashandisirwo mazhinji emagetsi, maPCB anoiswa patembiricha dzakasiyana-siyana, uye prepreg inoita kuti bhodhi rigare zvakanaka uye rishande zvakanaka, kunyangwe mumamiriro ekunze anopisa zvakanyanya.

Simba reMichina : Fiberglass iri mu prepreg inopa simba rekuvaka kuPCB, zvichiita kuti irambe yakasimba pakumanikidzwa, kukotama, uye kushanduka. Izvi zvakakosha zvikuru kumaPCB achashandiswa mumotokari, mundege, kana mumaindasitiri uko kuvimbika nekugara kwenguva refu zvakakosha.

Kugadzirisa Mashandisirwo Akananga : Prepreg inogona kugadziriswa kuti ienderane nezvinodiwa chaizvo. Semuenzaniso, resin inoshandiswa mu prepreg inogona kugadziriswa kuti ivandudze kusimba kwekupisa, kusimba kwehunyoro, kana kugadzikana kwemakemikari. Izvi zvinoita kuti maPCB e prepreg ave akakodzera kushandiswa kwakasiyana-siyana, kusanganisira ari munzvimbo dzakaoma dzakadai semasoja nendege.

Inodhura Zvikuru pakugadzira Zvinhu Zvikuru : Prepreg inopa nzira isingadhuri yekugadzira maPCB ane layer akawanda, kunyanya mukugadzira zvinhu zvakawanda. Kushandiswa nyore kwechinhu ichi, pamwe nekumhanya kwemaitiro ekugadzira zvinhu, kunobatsira kuderedza mari yekugadzira uku uchichengetedza mhando yepamusoro.

mhedziso

Prepreg chinhu chakakosha munyika yekugadzira PCB, ichipa chiyero chakakwana chekudzivirira magetsi, simba remagetsi, uye kusimba. Kunyangwe iwe uri kugadzira prepreg maPCB emagetsi evatengi, masisitimu emotokari, kana maapplication emuchadenga, kunzwisisa basa reprepreg kuchakubatsira kuti uve nechokwadi chekuti maPCB ako anosangana nezvinodiwa zvekuomarara kwemaitiro emazuva ano emagetsi masisitimu.

Iko kushandiswa kwakasiyana-siyana kwe prepreg zvinhu kunobvumira vagadziri vePCB kugadzira uye kugadzira yepamusoro-soro, yakavimbika edunhu mabhodhi anokwanisa kubata kuoma kwenyika yanhasi yemagetsi. Nekubatanidza prepreg mukuvaka kweakawanda-layer PCBs, mainjiniya anogona kugadzira akasimba, akadzikama, uye akanyanya-kuita maPCB anogona kumirisana nezvinodiwa zvezvishandiso zvinowedzera kuoma.

FAQ

1. Ndeapi marudzi akasiyana e prepreg zvinhu zvinoshandiswa mukugadzira PCB?

Prepreg zvinhu zvinogona kusiyanisa zvichienderana nerudzi rweresin uye yekusimbisa inoshandiswa. Mhando dzakajairwa dzeprepreg dzinosanganisira fiberglass (FR4), yakakwirira-tembiricha inodzivirira prepregs senge polyimide, uye zvemberi zvinhu zvakaita sePTFE (Teflon) yemhando yepamusoro-frequency application. Imwe neimwe mhando ye prepreg ine chaiyo zvivakwa inokodzera akasiyana PCB magadzirirwo uye kuita zvinodiwa.

2. Ko resin iri prepreg inokanganisa sei kuita kwese kwePCB?

Iyo resin mu prepreg inokanganisa zvakanyanya kupisa uye magetsi zvimiro zvePCB. Semuenzaniso, epoxy resins inopa chiyero chakanaka chekudzivirira kwemagetsi uye kugadzikana kwekupisa, zvichiita kuti ive yakakodzera kune akawanda emagetsi evatengi. Kusiyana neizvi, marezeni epamusoro-tembiricha anoshandiswa munzvimbo dzinoda kuomesesa kwekushisa uye makemikari kuramba, senge mumhepo kana kunyorera mota.

3. Prepreg inogona kushandiswa mune imwe-layer PCB magadzirirwo?

Prepreg inonyanya kushandiswa mu-multi-layer PCB dhizaini, sezvo ichipa iyo inodiwa yekumisa uye kubatana pakati pematanho. Nekudaro, kune imwechete-layer PCBs, prepreg haiwanzo kudiwa. Single-layer PCBs kazhinji inotsamira pane imwechete yemhangura layer uye haidi iyo insulating layers iyo prepreg inopa.

4. Ndezvipi zvinhu zvinotarisa kukora kwe prepreg inoshandiswa muPCB?

Ukobvu hwe prepreg layer hunoenderana nemaitiro ekugadzira, senge huwandu hwematanho, magetsi ekuita zvinodiwa, uye ukobvu hwese hwePCB. Zvinhu zvakadai seyaidiwa impedance control, dielectric nguva dzose, uye mechanical simba zvinodiwa zvakare zvinopesvedzera ukobvu hwe prepreg zvinhu.

5. Prepreg inobata sei mutengo wePCB kugadzira?

Prepreg inogona kuwedzera mutengo wePCB kugadzira, kunyanya mumabhodhi-akawanda, sezvo ichiwedzera imwe yekuwedzera zvinhu uye inoda yakasarudzika lamination maitiro. Mhando ye prepreg, ukobvu hwayo, uye kuomarara kwePCB dhizaini zvese zvinokanganisa mutengo. Nekudaro, prepreg inobatsirawo kukuvimbika kwese uye kuita kwePCB, zvichiita kuti ive yakakosha kudyara kwepamusoro-kuita maapplication.