Filifili PCB autu mafiafia mafiafia avea ma se mataupu pe a lolomi laupapa matagaluega (PCB) gaosi oloa mauaina se upusii talosagaina se multilayer mamanu ma mea e manaʻomia e le atoa pe leai foi faʻamatalaina. O nisi taimi e tupu lenei mea ona o le tuʻufaʻatasia o PCB autu mea faʻaaoga e le taua mo le faʻatinoina; If the overall thickness requirement is met, the end user may not care about the thickness or type of each layer.

Ae i isi taimi, o le faʻatinoga e sili atu lona taua ma o le mafiafia e manaʻomia le puleaina lelei mo sili ona lelei gaioiga. If the PCB designer clearly communicates all requirements in the documentation, then the manufacturer will know what the requirements are and will set the materials accordingly.

Mataupu E tatau ona mafaufau le au mamanu PCB

E fesoasoani i le au mamanu ia malamalama i mea o loʻo avanoa ma masani ona faʻaaogaina, o lea e mafai ai ona latou faʻaaogaina talafeagai tulafono faʻavae e fausia ai PCBS vave ma saʻo. O le mea o loʻo sosoʻo mai ose faʻamatalaga puʻupuʻu e filifili ai mea fai mea e manaʻomia ona faʻaaoga, ma mea e ono manaʻomia e feau vave ai le galuega e aunoa ma le tolopoina o lau poloketi.

Malamalama PCB laminate tau ma faamaumauga

E taua le malamalama o PCB laminate mea o loʻo faʻatau atu ma galulue i se “system” ma o le autu mea ma prepreg taofia e le kamupanī mo vave faʻaoga e masani lava mai le tutusa faiga. In other words, the constituent elements are all parts of a particular product, but with some variations, such as thickness, copper weight and prepreg style. I le faʻaopopoga i le masani ai ma le toe faʻataʻitaʻia, e i ai isi mafuaʻaga e teu ai se faʻatapulaʻa numera o laminate ituaiga.

Faʻavaeina ma totonu faiga autu e fausia e galulue faʻatasi, ae ono le galue saʻo pe a faʻaaogaina faʻatasi ma isi oloa. Mo se faʻataʻitaʻiga, o le Isola 370HR autu mea o le a le faʻaaogaina i le faaputuga tutusa ma le Nelco 4000-13 prepreg. It’s possible they’ll work together in some situations, but more likely they won’t. Hybrid system ave oe i le le faʻataʻatiaga teritori, i le amio o mea (e lauiloa pe a faʻaaogaina o homogeneous system) e le toe mafai ona avea ma le le amanaiaina. Careless or unwitting mixing and matching of material types can lead to serious failures, so no manufacturer will mix and match unless the type is proven to be suitable for “mixed” stacking.

O leisi mafuaʻaga e teu ai se mea puʻupuʻu lisi o le taugata tele o le faʻamaonia UL, o lea e masani ai i le PCB alamanuia ona faʻatapulaʻaina le numera o tusipasi i se laʻititi filifilia o mea. Manufacturers will often agree to make products on laminate without standard stock, but be aware that they cannot provide UL certification through QC documentation. O se filifiliga lelei lea mo mamanu e le o le UL pe a faʻailoa ma malilie muamua ma e masani le gaosi oloa i manaʻoga o le laminating system o loʻo fesiligia. For UL work, it is best to find out the manufacturer inventory of your choice and design boards to match it.

Ipc-4101d and foil construction

O lenei la o nei mea moni o loʻo tatala i fafo, e lua isi mea e fia iloa ae leʻi oso i totonu o le ata. Muamua, e sili le faʻamalamalamaina laminates e tusa ai ma alamanuia faʻapitoa IPC-4101D ae le o igoa igoa faʻapitoa oloa e le o tagata uma mafai ona faʻasoa.

Secondly, it is easiest to construct multiple layers using the “foil” construction method. Fausaga fausiaina pepa o lona uiga o le pito i luga ma lalo faaputuga (fafo) e faia mai se tasi fasi ‘apamemea foil ma laminated i le toe vaega ma prepreg. E ui lava e foliga mai e agavaʻa le fausiaina o le 8-layer PCB ma le fa lua itu itu, e sili ai le faʻaogaina muamua o le pepa i fafo, ona tolu ai lea o laina mo le L2-L3, L4-L5, ma le L6-L7. I se isi faaupuga, fuafua e mamanuina se tele-layer faaputuga ina ia le aofai o autu o faapenei: (aofai numera o faaputuga toʻesea 2) vaevaeina i le 2. Le isi, e aoga le iloa se mea e uiga autu meatotino. Ia i latou lava.

O le autu o loʻo sapalai atu i se atoatoa faʻamaloloina PIECE o FR4 ma apamemea plated i itu uma. O Cores e tele lona lautele o mafiafia, ma o le tele o taimi e faʻaaoga ai lapoʻa e masani ona teuina i lapopoʻa o oloa. Nei o mafiafia e te mafaufau i ai, aemaise pe a e manaʻomia le okaina vave fesuiaʻi oloa ina ia e le maimauina le taimi taʻimua o le okaina faʻatali mo le le masani ai mea e taunuʻu mai le tufatufaina.

Masani uʻamea autu ma ‘apamemea mafiafia

O mea e masani ona faʻaaogaina e fausia ai le 0.062 “mafiafia multilayers e 0.005”, 0.008 “, 0.014”, 0.021, 0.028 “, ma 0.039”. O faamaumauga o le 0.047 “e taatele foi, aua e masani ona fai e fau ai ni laupapa se lua. O le isi autu o le a teuina i taimi uma o le 0.059 i totonu., Aua e faʻaaogaina e fausia ai 2-ply laupapa e 0.062 i totonu. Mafiafia, ae faʻatoa mafai ona faʻaaogaina mo mafiafia faʻatele laupapa, pei o le 0.093 i totonu. Mo lenei tulaga, matou te faʻatapulaʻaina le lautele i se autu mamanu ma le mulimuli filifilia mulimuli o 0.062 inisi.

O le mafiafia o le apamemea e amata mai i le afa aunese i le tolu i le fa aunese, fuafua i le tuʻufaʻatasia o oloa gaosi a le tagata gaosi, ae o le tele o faʻasoa e mafai ona i ai i le lua aunese pe itiiti ifo. Taofi lenei i lou mafaufau ma manatua e toeitiiti uma stock o le a faʻaaogaina le tutusa apamemea mamafa i itu uma o le autu. Taumafai e aloese mai PCB mamanu manaʻoga e manaʻomia eseese ‘apamemea i itu taʻitasi, e pei o le tele o taimi e manaʻomia ai se faʻapitoa faʻatau ma e ono manaʻomia ai le faanatinati totogi (faaoo faanatinati), o nisi taimi e le ausiaina foi le tufatufaina maualalo oka.

Mo se faʻataʻitaʻiga, afai e te manaʻo e faʻaaoga le 1oz apamemea i luga o se vaʻalele ma fuafua e faʻaaoga H oz o faʻailo, mafaufau e fai le vaʻalele i le H oz pe faʻateleina le faʻailo i le 1oz e faʻaaoga ai le autu i itu uma e lua pei o le apamemea ma le mamafa. O le mea moni, e mafai ona e faia lenei mea peʻa mafai ona e faʻamalieina manaʻoga tau eletise o le ata ma ia lava le XY o vaega e ofi ai le faʻalauteleina o laupepa / avanoa vateatea tulafono e faʻafetaui ai le 1oz aupito maualalo ile vaega faʻailo. Afai e te mafai ona ausia nei tulaga, e sili ona lelei le faʻaogaina e pei o le mamafa o le kopa. A leai, oe ono manaʻomia le mafaufau i ni nai aso faʻaopoopo o taimi taʻimua.

Faapea ua e filifilia le talafeagai autu mafiafia ma maua apamemea mamafa, eseese tuʻufaʻatasiga o laupepa prepreg e faʻaaogaina e faʻamautu ai le toe totoina dielectric nofoaga seʻia oʻo i le aofaʻi o le mafiafia manaʻomia ua faʻamalieina. Mo mamanu e le manaʻomia impedance pulea, oe mafai ona tuʻu le prepreg filifiliga i le gaosi oloa. O le a latou faʻaaogaina la latou palakalafa “standard” e fiafia tele i ai. I leisi itu, afai o ia oe impedance manaʻoga, taua nei manaʻoga i pepa ina ia mafai ai e le gaosi oloa ona fetuʻunaʻi le aofaʻi o prepreg i le va o autu e faʻafetaui ai le faʻatulagaina taua.

Faʻatonutonu

Pe o le impedance pulea e manaʻomia pe leai, e le fautuaina e te taumafai e faʻamaonia le ituaiga ma le mafiafia o prepreg mo nofoaga taʻitasi seʻi vagana o oe o se tagata atamai i lenei faʻataʻitaʻiga.E masani ona manaʻomia le fetuʻunaʻi o faʻaputuga auʻiliʻili ina ia mafai ai ona faʻatuai. Nai lo lena, o lau faaputuga ata mafai ona faʻaalia le autu mafiafia o le pito i totonu vaega paʻu ma faʻailoa “prepreg tulaga manaʻomia faʻavae luga o impedance ma aotelega mafiafia manaoga”. This allows manufacturers to create ideal laminations to match your design.

Le talaaga otooto

O se faʻaputuga lelei o mataʻitusi e faʻavae i luga o faʻasoa oloa e taua tele e aloese mai ai i le le faʻatuai ona tuai pe a okaina vave feau faʻasolosolo ma fusi taimi. Tele PCB gaosi faʻaaogaina tutusa multilayer fausaga faʻavae i luga o le kernel tutusa ma a latou tauva. Vagana o le PCB e sili ona faʻapitoa, e leai se faʻamaneta poʻo se mea lilo fausiaina. O le mea lea, e aoga le faʻamasani ia oe lava i mea e manaʻomia mo se vaega faapitoa ma faia taumafaiga uma e fuafua se PCB e faʻafetaui ia. E i ai pea tuʻusaʻoga mo manaʻoga tisaini manaʻoga, ae i se tulaga lautele, masani mea o le sili filifiliga.