Mune ino blog post, isu tichakurukura zvakakosha kufunga uye nhungamiro yekusarudza zvakanakisa zvekushandisa zvePCB yakawanda.
Paunenge uchigadzira uye kugadzira multilayer wedunhu mabhodhi, chimwe chezvinhu zvakanyanya kukoshesa kufunga ndechekusarudza zvinhu zvakanaka. Kusarudza zvinhu zvakafanira zveyakawanda yedunhu redunhu, kusanganisira substrate uye mhangura foil, inogona kukanganisa zvakanyanya kuita uye kuvimbika kwechigadzirwa chekupedzisira.
Nzwisisa basa re substrate
Nheyo yehwaro ndiyo nheyo ye multifunctional circuit boards. Inoita basa rakakosha mukupa tsigiro yemagetsi, kuvharwa kwemagetsi uye kupisa kupisa mukati mebhodhi redunhu. Naizvozvo, kusarudza iyo substrate yakakodzera kwakakosha kuti uve nechokwadi chekuvimbika kwese uye kushanda kwebhodhi redunhu.
Pakusarudza substrate ye multilayer redunhu bhodhi, pane akati wandei zvinhu zvekufunga. Iwo anonyanya kushandiswa substrates anosanganisira FR-4, polyimide uye ceramic zvinhu. Imwe neimwe zvinhu ine yakasarudzika zvivakwa uye mabhenefiti kuti aenderane akasiyana edunhu bhodhi zvinodiwa.
1. FR-4:FR-4 inzvimbo inoshandiswa zvakanyanya inozivikanwa nekunaka kwayo magetsi ekudzivirira zvivakwa uye simba remuchina. Iyo ine chidimbu chakatetepa che epoxy resin yakasimbiswa fiberglass. FR-4 inodhura-inoshanda, inowanikwa zviri nyore, uye yakakodzera kune akawanda maapplication. Nekudaro, nekuda kweiyo yakakwira dielectric kugara uye kurasikirwa tangent, inogona kunge isingakodzere yakakwirira-frequency yedunhu dhizaini.
2. Polyimide:Polyimide yakanakira maapplication ayo anoda kuchinjika, yakakwirira tembiricha kuramba, uye yakanakisa makemikari kuramba. Icho chinhu chinonzi thermoplastic chinogona kutsungirira mamiriro ekushanda akaoma. Polyimide redunhu mabhodhi anowanzo shandiswa mune aerospace, mota uye maindasitiri ekurapa uko akareruka uye compact dhizaini yakakosha.
3. Ceramic zvinhu:Kune akakosha maapplication anoda yakakwira thermal conductivity uye yakanakisa magetsi ekudzivirira, ceramic zvinhu zvakaita sealuminium nitride kana aluminium oxide ndiyo yekutanga sarudzo. Izvi zvinhu zvine zvakanakisa zvekupisa zvivakwa uye zvinogona kubata yakakwirira simba kushanda.
Ongorora Copper Cladding Options
Copper clad foil inoita seye conductive layer mu multilayer circuit board. Inopa nzira dzemagetsi uye hukama pakati pezvikamu zvakasiyana uye masekete. Pakusarudza foil yemhangura, pane zvinhu zviviri zvakakosha zvekufunga nezvazvo: foil ukobvu uye adhesive mhando.
1.Foil ukobvu:Copper clad foil inouya muhukobvu hwakasiyana, kazhinji kubva pa1 ounce kusvika pa6 ounces. Ukobvu hunotaridza huwandu hwazvino hwekutakura hwebhodhi redunhu. Yakakora foil inokwanisa kubata yakakwira mitoro iripo asi inogona kushomeka mukuwana yakatsetseka yekutevera upamhi uye nzvimbo. Nokudaro, zvakakosha kuti uongorore zvinodikanwa zvemazuva ano zvedunhu uye sarudza foil ukobvu hunozoenderana zvakakwana nezvinodiwa iye zvino.
2.Adhesive type:Copper clad foil ine acrylic kana epoxy adhesive. Acrylic adhesive foils inonyanya kushamwaridzana nharaunda, iri nyore kugadzirisa uye inodhura-inoshanda. Epoxy adhesive foils, kune rumwe rutivi, inopa kugadzikana kwemafuta kuri nani, kuramba kwemakemikari, uye kunamatira. Kusarudzwa kwemhando yekunamatira kunoenderana nezvinodiwa zvekushandisa.
Natsiridza maitiro ekusarudza zvinhu
Kuti ugone kukwidziridza maitiro ekusarudza zvinhu kune akawanda edunhu mabhodhi, zvinotevera zvinongedzo zvinofanirwa kutariswa:
1. Sarudza zvinodiwa zvekushandisa:Izvo zvakakosha kuti unzwisise nharaunda yekushanda, tembiricha mazinga, mechanical stress, uye mamwe mamiriro akanangana nekushandisa. Idzi ruzivo ruchatungamira kusarudzwa kwezvinhu zvinogona kumira nemamiriro anodiwa.
2.Shanda nevashambadziri:Kubvunzurudza nemutengesi wezvishandiso ane ruzivo kana PCB mugadziri anogona kupa ruzivo rwakakosha pakusarudza zvinhu zvakanyatsokodzera. Vanogona kupa mazano zvichienderana neunyanzvi hwavo uye ruzivo rwezvino kufambira mberi mune redunhu bhodhi zvinhu.
3. Ongorora Mutengo uye Kuwanikwa:Nepo kuita uye kuvimbika kwakakosha, zvakakoshawo kufunga nezve mutengo uye kuwanikwa kwezvinhu zvakasarudzwa. Ita shuwa kuti zvinhu zvakasarudzwa zvinodhura uye zviri nyore kuwanikwa muhuwandu hunodiwa.
Muchidimbu
Kusarudza zvinhu zvakakodzera maPCB akawanda inhanho yakakosha mukuona kushanda, kuvimbika uye kuita kwechigadzirwa chekupedzisira. Kunzwisisa basa re substrate uye copper cladding, kuongorora sarudzo zvichienderana nezvinodiwa chaizvo, uye kugadzirisa maitiro ekusarudza kuchabatsira vanogadzira uye vagadziri kuwana mhedzisiro yakanaka. Nekufunga izvi nhungamiro, mainjiniya anogona kusarudza nechivimbo zvinhu zvakaringana zvemabhodhi akawanda edunhu, zvichikonzera kubudirira uye kwenguva refu zvigadzirwa zvekugadzira.
Nguva yekutumira: Sep-26-2023
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