Kusarudza Yakanakisa Copper Clad Laminate: A Inoshanda Guide

Kuvaka PCB - kana chero magetsi ekubatanidza - kunosanganisira musanganiswa wemakondakita uye insulators kuti ive nechokwadi chekudzora kuyerera kwazvino. Zviitiko apo tambo dzemwenje kana tambo dzechaja dzefoni dzinobuda pachena nekuda kwekuchinjika dzinoratidza kukosha kweiyo yakasimba insulating layer. Mabhodhi edunhu anoshanda zvakafanana, achishanda anochinjika madhiri emidziyo uye conductor, kazhinji foil yemhangura. Iyo yakakosha zvinhu mukuita uku, inozivikanwa semhangura-clad laminate kana PCB musimboti, inoita basa rakakosha. Vagadziri vanogona kushandura zvimiro zvedielectric uye conductor layers kuti vagone kuita, kugadzira copper-clad laminates chinhu chakakosha mukuwedzera PCB kunyatsoshanda.

Vagadziri vane kugona kugadzirisa hunhu hwema laminates ane copper-clad kuti aenderane nezvinodiwa zvedhizaini chaiyo. Ma parameter akadai se dielectric constant, loss tangent, uye peel strength anokanganisa zvakanyanya mashandiro emagetsi uye kuvimbika kwePCB. Nekunzwisisa nekugadzirisa ma parameter aya akakosha, vagadziri vanogona kuwana kuvimbika kwechiratidzo, manejimendi yekupisa, uye kugadzikana kwemuchina mumagadzirirwo avo ePCB . Muchinyorwa chino, tichaongorora kukosha kwema laminates ane copper-clad uye basa rawo guru mukusimudzira mashandiro ePCB. Pakududzira ma datasheets eRO4003C neRO4350B , chengetedza mamiriro ekuyedza, tsananguro dzinogara dziripo dze dielectric uye mavakirwo aripo akafanana usati waenzanisa zvinhu.

Copper Clad Laminate Variables

1. Girazi Weave: Iyo pateni uye kusimba kweiyo weave inogona kukanganisa dielectric nguva dzose uye kurasikirwa tangent yelaminate.
2. Epoxy Resin: Iyo resin zvivakwa inokanganisa iyo yakazara mechanic uye magetsi maitiro eiyo laminate.
3. Mhangura Foil: Rudzi, ukobvu, uye kurapwa kwepamusoro kwefoiri yemhangura kunokanganisa kunamira kwayo, kusapindirana, uye michina.
4. Rolls/Kukora: Ukobvu hwelaminate hunokanganisa hukuru hwebhodhi uye simba remagetsi.
5. Glass Transition Temperature: Tembiricha apo iyo epoxy resin inoshanduka kubva pakaoma, ine girazi kuenda kune yakapfava, ine rubbery state.
6. Dielectric Constant: Kugona kwezvinhu kuchengetedza simba remagetsi mumunda wemagetsi.
7. Kurasikirwa Tangent: Chiyero chechikamu chekufungidzira che dielectric chinogara kune chikamu chayo chaicho, chinomiririra kupera kwesimba kwesimba.
8. uremu: Huremu hwelaminate hunokanganisa huremu hwese hwePCB.
9. Foil Type: Mhando dzakasiyana dzemhangura foil dzine akasiyana mashandiro emagetsi uye emagetsi.
10. Peel Simba: Kugona kwelaminate kuramba delamination panguva yekugadzirisa uye kushandiswa.

Kunzwisisa Zvikamu zveCopper-Clad Laminate

Copper clad laminate ndiyo yakakosha yekuvaka block yePCB panguva yelamination process. Laminate ine zvidimbu zviviri zvakasiyana: foil yemhangura, iyo inoumba chiratidzo kana mitsara yendege, uye (kazhinji) girazi-fiber weave uye epoxy resin prepreg. Izvi zvinopa bhodhi yakakosha kondakita / insulator hukama: yekutanga inotakura masaini emagetsi, nepo iyo yekupedzisira ichipa yega yemagetsi kudzivirira pesvedzero isina kufanira kune kana kubva kune yega yega conductive layer. Nepo ese akakosha laminate anoomerera kune iyi fomati, kuita kwayo kunogona kusiyana zvakanyanya zvichienderana nezvinodiwa zvebhodhi. Iyo stackup dhizaini - iyo material layer-by-layer kurongeka kwebhodhi - inogona kushandisa imwe- kana kaviri-sided copper-clad laminate (pamwe chete nefoil-shoma prepreg) kugadzira bhodhi chimiro chinoenderana nemagetsi uye ma mechanical zvinodiwa.

Girazi Weave uye Impact Yayo paChiratidzo Kutendeseka

Kutanga negirazi fiber weave inoumba chimiro chepakati prepreg, vagadziri vanogona kutsanangura weave ply uye kusimba. Maitiro ese ari maviri anokanganisa avhareji dielectric inogara inosangana nemasaini 'nzira dzekutumira. Sezvo masaini achifamba pamusoro pedielectric, vanopedza nguva dzakasiyana-siyana pamusoro pefiberglass weave kana weave gap (iyo ine resin chete) - mutsauko wedielectric kugara pakati pezvinhu zviviri izvi unogona kuve wakakosha zvakakwana panzira dzakakwana dzechiratidzo chekukanganisa kuwiriranisa. Nepo zvichikwanisika chose kuwanda kwekusiyana kwenguva "avhareji kunze" kusvika pahuwandu husina basa, pane zvakare mukana wemusiyano mukuru apo mitsetse miviri inobata nguva inosangana nekunyanyisa kwegirazi weave dielectric uye epoxy resin dielectric.

Vagadziri ve laminate vanopa vagadziri neakasiyana-siyana eruko sarudzo dzekuzvidavirira kune weave mhedzisiro (sekuzivikanwa kwainoitwa). Kuti zvive zvakajeka, mutsara skew unobva mukusiyana kweweave uye resin hama dielectric inogona kunge isinganyanyi kukosha kana kumhanya kwemutsara kusingakurumidzi kukurumidza. Iyo yakajairika / yakakurumbira 106 uye 1080 weave mapatani akakwana kune yakataurwa dhizaini chinangwa mune idzi kesi uye ine mari kubhutsu. Zviyereso zvakakura zvakarukwa uye machira akasimba-akarukwa anozosangana kushoma kusarongeka (kubva pakuona kwebofu nzira) pakati pehama dielectric zvinoramba zvichiwedzera kumucheto wekugadzira - kune madiki ekugadzira anomhanya (kureva, prototyping, mashoma NPIs, nezvimwewo) , iyo yose yekuwedzera mutengo inogona kuva inonzwisisika.

Mhedzisiro yekuomesesa weave kuderedzwa kweresin%, se "magapu" mune weave, ayo aive neresin, kuchinjana kune mamwe magirazi fibers. Uku kudzikiswa kweresin kune shanduko yakacherechedzwa mumabatiro anoita bhodhi panguva yekugadzira matekiniki, nechigadzirwa chekupedzisira chinoratidza zvakasiyana-siyana zvemuchina uye zvinhu, kunyanya kana uchifunga nezve isotropic (inotenderera-inotsamira) mhedzisiro pamwe nemitsara yekuruka. Kuwedzera kune yakanyanyisa kugadzirwa kwemhedzisiro, resin kurasikirwa kunoenderana nekuderera kwemagetsi emagetsi (hukama dielectric constant, kurasikirwa tangent), sezvo resin inodzivirira kupfuura iyo weave.

Copper Foil Kugadzira Maitiro

Kushanda, prepreg inongovhara hafu yelaminate. Kunyangwe ichiita seyakaomesesa, mhangura foil yekugadzira misiyano inogona kuchinja zvakanyanya kuita kwayo. Iyo inoratidzika kunge yakadzikama planar pamusoro pasina kukwidziridzwa, foil yemhangura pasi pekukudza inogona kuratidza akasiyana hutsinye huso hunopesvedzera kugona kwayo kubata substrate uye kukanganisa iyo impedance yeakakwira-frequency masaini. Maitiro akasiyana ekugadzirisa anogona kucheka mazino emhangura uye kupa akasiyana hunyanzvi kuPCB:

• Electrodeposited: Vagadziri vanoisa mhangura vachishandisa anode/cathode system yakabatana nemhangura mhinduro uye inotenderera titanium dhiramu. Simba remunda wemagetsi (DC simba mudhiramu retitanium) rinotonga chiyero chekuisa, nemhangura yakakora inoda nguva yakareba yekugadzirisa. Iyo ine yakanakisa tensile simba rekushandisa ine yakakura ma mechanika zvinodiwa asi ine mhangura mazino ekuumbwa.
• Yakakungurutswa-yakakwenenzverwa: Nhepfenyuro yema rollers nemuchina inoderedza ukobvu hwefoiri pazasi recrystallization tembiricha yekuomesa-kuomesa. Iyo inoderedza zvakanyanya kusakwana kwepamusoro, izvo zvinoita kuti ive sarudzo yakanakisa yeakakwira-frequency mabhodhi.
• Reverse Yakarapwa: Nhanho inokatyamadza inonatsiridza kunamatira pakati pefoiri uye prepreg kune zvirinani peel simba uye, saka, zvirinani kuramba kurwisa mechaniki delamination. Kusvika kure, iyo yakajairika foil sarudzo ye "yakajairwa" PCB maapplication nekuda kwekunatsiridza kwayo etch uye miniaturization padivi pemazino emhangura-mbiri.
• Yakarapwa Kaviri: Mativi ese ari maviri efoil anopinda roughening kuti avandudze adhesion, zvichibvumira vagadziri kuti vapfuure dema oxide nhanho panguva yekugadzira.

mhedziso

Copper clad laminate (CCL) chinhu chakakosha mukugadzirwa kwePCB , chinokanganisa mashandiro emagetsi, ekupisa, uye emakanika echigadzirwa chekupedzisira. Nekunzwisisa mhando dzakasiyana, hunhu, uye mashandisirwo eCCL, vagadziri vePCB nevagadziri vanogona kuita sarudzo dzakagadzirwa kuti vagadzirise magadzirirwo avo uye kuve nechokwadi chekuvimbika uye kugara kwenguva refu kwemidziyo yavo yemagetsi. Gwaro iri rakazara rinoshanda sechishandiso chakakosha kune nyanzvi dziri kutsvaga kudzamisa ruzivo rwavo uye kuwedzera hunyanzvi hwavo mumunda wekugadzira PCB.

Nekugara uchivandudzwa nekufambira mberi kwehunyanzvi hweCCL uye kuomerera kune akanakisa maitiro ekusarudza zvinhu uye maitiro ekugadzira, iyo PCB indasitiri inogona kuenderera mberi nekuvandudza uye kusangana nezvinoda kuitika zvemagetsi emazuva ano. Kunyangwe kugadzira zvigadzirwa zvevatengi, masisitimu emotokari, kana maapplication emuchadenga, sarudzo yeCCL inoita basa rakakosha mukuita kwepamusoro kuita uye kuvimbika.

Pakusarudza zvinhu zvine chekuita nekugadzira, Highleap inonyorawo ongororo yezvinhu zvebhodhi redunhu uye sarudzo yekupedzisa kwePCB , izvo zvinogona kubatsira kudzivirira zvinyorwa zvisina kujeka mupakeji yemutengo.