The PCB waya yemhangura inodonha (kureva kuti, inowanzonzi mhangura inoraswa), uye mhando dzose dzePCB dzichataura kuti idambudziko nelaminate uye inoda kuti miti yavo yekugadzira itakure kurasikirwa kwakaipa. Zvinoenderana nemakore echiitiko mukubata zvichemo zvevatengi, zvikonzero zvakajairika zvekurasa PCB ndezvizvi:

1. PCB fekitori maitiro zvinhu:

1). Kuwedzeredza etching yemhangura foil.

Iyo electrolytic copper foil inoshandiswa pamusika inowanzo gara-ine divi rimwe galvanized (inowanzozivikanwa seashing foil) uye imwechete-sided copper-plated (inowanzozivikanwa sered foil). Mapepi emhangura akajairika anowanzo galvanized copper foil pamusoro pe70um, tsvuku foil uye 18um. Iyo inotevera ashing foil haina kunyanya kurambwa nebatch copper. Kana dhizaini yedunhu iri nani pane mutsara we etching, kana iyo yemhangura foil yakatarwa ikashandurwa pasina kushandura etching parameters, izvi zvinokonzeresa kuti foil yemhangura igare mune etching mhinduro kwenguva yakareba.

Nekuti zinc pakutanga isimbi inoshanda, kana waya yemhangura iri paPCB yakanyudzwa mumhinduro ye etching kwenguva yakareba, zvinokonzeresa kushata kwedivi redunhu, zvichikonzera kuti imwe nhete yedunhu inotsigira zinc layer inyatso batwa uye kupatsanurwa kubva. iyo substrate, kureva kuti, waya yemhangura inodonha.

Imwe mamiriro ezvinhu ndeyekuti hapana dambudziko nePCB etching parameters, asi kugeza nekuomeswa hakuna kunaka mushure mekucheka, zvichiita kuti waya yemhangura ive yakakomberedzwa neyakasara etching mhinduro paPCB. Kana ikasagadziriswa kwenguva yakareba, inokonzeresa kuwanda kweparutivi rwetambo yemhangura. mhangura.

Mamiriro ezvinhu aya anowanzo kutariswa pamitsetse mitete, kana mamiriro ekunze akanyorova, zvirema zvakafanana zvinoonekwa paPCB yese. Bvisa waya yemhangura kuti uone kuti ruvara rwenzvimbo yayo yekusangana ine base layer (inonzi inonzi roughened surface) yachinja, iyo yakasiyana neyenguva dzose mhangura. Rudzi rwefoiri rwakasiyana, ruvara rwemhangura rwekutanga rwepasi pasi runoonekwa, uye kusimba kwepepuru yemhangura pamutsetse wakakobvu zvakare.

2). MuPCB yekugadzira maitiro, kudhumhana kunoitika munharaunda, uye waya yemhangura inoparadzaniswa kubva kune substrate nemagetsi ekunze simba.

Kuita kwakashata uku kune dambudziko nekumisikidzwa, uye waya yemhangura ichave yakamonyaniswa zviri pachena, kana kukwenya kana kukanganiswa mamaki munzira imwechete. Kana iwe ukasvuura waya yemhangura pane yakakanganisika uye uchitarisa kune yakaoma pamusoro pefoiri yemhangura, iwe unogona kuona kuti ruvara rwekushata kwepepi yemhangura yakajairika, hapazove nekukukurwa kwedivi, uye simba rekusvuura. yemhangura foil yakajairika.

3). Iyo PCB yedunhu dhizaini haina musoro.

Kushandisa foil gobvu yemhangura kugadzira dunhu rakanyanya kutetepa kunokonzeresa kuwandisa kwedunhu uye kurasira mhangura.

2. Zvikonzero zvekugadzira laminate process:

Mumamiriro ezvinhu akajairwa, iyo foil yemhangura uye prepreg ichave yakanyatso kusanganiswa chero bedzi tembiricha yepamusoro yelaminate ichipisa yakadzvanywa kweanopfuura maminetsi makumi matatu, saka kudzvanya hakuzokanganisa simba rekubatanidza refoiri yemhangura uye substrate mune laminate. Nekudaro, mukuita kurongedza uye kurongedza laminates, kana PP yakasvibiswa kana yemhangura foil rough kukuvara kwepamusoro, zvinokonzeresa kusakwana kwesimba rekubatanidza pakati pefoiri yemhangura uye substrate mushure mekucheneswa, zvichikonzera kutsauka kwekumisikidza (chete kwemahwendefa makuru) Waya dzemhangura dzinodonha zvishoma nezvishoma, asi kusvuuka kwefoiri yemhangura pedyo newaya dzakadzimwa hakuzove zvisina kujairika.

3. Zvikonzero zve laminate mbishi zvinhu:

1). Sezvataurwa pamusoro apa, akajairwa electrolytic copper foils zvese zvigadzirwa zvakave nemarara kana mhangura-yakaputirwa. Kana iyo yepamusoro kukosha kweiyo foil yemvere isina kujairika panguva yekugadzirwa, kana kana galvanized / mhangura-yakaputirwa, iyo plating crystal matavi akaipa, zvichiita kuti foil yemhangura pachayo Simba rekusvuura harina kukwana. Mushure meiyo yakashata foil yakadzvanywa pepa zvinhu yagadzirwa kuita PCB, waya yemhangura inodonha kana yabatwa nekunze kwesimba kana yabatanidzwa mufekitori yemagetsi. Rudzi urwu rwekurambwa kwemhangura kwakashata hakuzove nekuora kweparutivi paunenge uchipepeta waya yemhangura kuti uone nzvimbo yakakasharara yefoiri yemhangura (kureva kuti, nzvimbo yekusangana neiyo substrate), asi kusvuura kusimba kwefoiri yese yemhangura kuchave kwakanyanya. varombo.

2). Kusagona kuchinjika kwefoiri yemhangura uye resin: Mamwe maramina ane akakosha zvivakwa, senge HTG mapepa, ari kushandiswa parizvino. Nekuda kweakasiyana masisitimu resin, mumiririri wekurapa anoshandiswa anowanzo PN resin, uye resin molecular cheni chimiro chiri nyore. Iyo dhigirii yekuyambuka-yakaderera, uye zvinodikanwa kushandisa foil yemhangura ine yakakosha peak kuti ienderane nayo. Iyo foil yemhangura inoshandiswa mukugadzira laminates haienderane neresin system, zvichikonzera kusakwana kwesvumbunuro simba rebepa resimbi-akapfeka simbi foil, uye kushata kwewaya yemhangura panguva yeplug-in.