Multilayer PCB e entsoe haholo ka foil ea koporo, lakane e phekotsoeng hantle, boto ea mantlha.Ho na le mefuta e 'meli ea sebopeho se lekanang le mochine oa khatiso, e leng foil ea koporo le core board-fit structure le core board le core board-fit structure.Preferred koporo foil le konokono lamination sebopeho, lipoleiti khethehileng (tse kang Rogess44350, joalo-joalo) multilayer boto le motsoako oa khatiso sebopeho boto e ka sebelisoa mantlha lamination sebopeho.Hlokomela hore sebopeho se hatelitsoeng (PCB Construction) le setšoantšo sa ho cheka sa tatellano ea boto e stacked (Stack-up- layers) ke likhopolo tse peli tse fapaneng.Ea pele e bua ka PCB petelitsoe hammoho ha sebopeho stacking, e tsejoang hape e le sebopeho stacked, ea ho qetela e bua ka PCB moralo stacking odara, e tsejoang hape e le taelo stacking.
1. Litlhokahalo tsa moralo oa sebopeho se hatisitsoeng hammoho
E le ho fokotsa PCB warpage phenomenon, PCB petelitsoe hammoho sebopeho lokela ho kopana ditlhoko symmetry, ke hore, botenya ba foil koporo, mecha ea litaba lera sehlopha le botenya, mofuta oa kabo ea litšoantšo (line lera, sefofane lera), petelitsoe hammoho symmetrical leloko. ho ea setsing se otlolohileng sa PCB.
2. Conductor koporo botenya
(1) botenya ba koporo bo bonotsoeng litšoantšong tsa botenya ba koporo bo phethiloeng, ke hore, botenya ba koporo bo ka ntle bakeng sa botenya ba foil e ka tlase ea koporo hammoho le botenya ba lera la ho rala, botenya ba koporo bo kahare bakeng sa botenya ba bokahare. foil ea koporo e tlase.Botenya ba ka ntle ba koporo setšoantšong bo tšoailoe e le "botenya ba koporo ea foil + plating, 'me botenya ba ka hare ba koporo bo tšoauoa e le "botenya ba foil ea koporo".
(2) 2OZ le lintlha tse ka holimo tse teteaneng tsa koporo e tlase.
E lokela ho sebelisoa symmetrically ho pholletsa le sebopeho laminated.
Ho ea kamoo ho ka khonehang ho qoba ho beha ka L2 le Ln-2 lera, ke hore, Top, Bottom holim 'a lera bobeli ka ntle, e le ho qoba PCB holim'a unevenness, wrinkling.
3. Litlhoko tsa sebopeho se hatelitsoeng
Tobetsa tshebetso ke tshebetso senotlolo sa tlhahiso ea PCB, ka makhetlo a mangata likoti petelitsoe le ho nepahala disc lolamisi tla mpefala, le ho feta tebileng PCB deformation, haholo-holo ha asymmetric petelitsoe hammoho.Litlhoko tsa lamination bakeng sa lamination, tse kang koporo botenya le mecha ea litaba botenya lokela ho tšoanang.
Nako ea poso: Nov-18-2022