PCB ituaiga puipuiga

I le faigofie upu, PCB taofia mafai ona faʻamatalaina faʻapea:

O le PCB uaea faʻafanua ua fuafuaina e le tisainiina mo fafo vaega i eria le faʻatuina i luga o le matagaluega laupapa, lea ‘apamemea faʻailoga poʻo isi vaega matagaluega vaega e tatau ona ulufale pe kolosi. The area can be or contain copper and can be of any shape.

In most cases, retention zones are used to keep certain board areas far enough away from other components to prevent or minimize EMI. Ae ui i lea, latou te faʻaaogaina foi e maua ai avanoa mo ili-fafo sailia o luga-tiʻetiʻe vaega. Faʻataʻitaʻiga o masini gaosi poʻo le FPGas, e masani lava o PCB iloiloina ma atinaʻe laupapa. Nisi lisi masani masani o loʻo lisiina atu i lalo.

Ituaiga o puipuiga PCB

L antenna

Probably, the most common type of reservation is to reserve an area of copper wire around an onboard or connected antenna to prevent EMI from affecting the fidelity of the transmitted or received signal. Reservations mafai foi ona aofia ai antenna uaea i isi liʻo.

L vaega

It is also common to make room for fan-outs around components (especially EM radiators). This is true for microprocessors, FPgas, AFE and other medium to high pin count components (commonly used for patch packages).

L Ipu pito kilia nofoaga

O le kilia pito e taua tele ile gaosiaina. Faʻapitoa lava, panels e vaeluaina i totonu o laupapa taʻitasi i le taimi o PCB potopoto. To do this, enough clearance must be left for wiring or scoring.

L sailia

Sometimes it may be advantageous to define reservation areas around traces. O nisi taimi e faʻaaogaina mo laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina laina eletise.

L viliina

Many plates are installed by screws or bolts. In these cases, it is helpful to define the spacing around the holes. Insufficient spacing can affect assembly, interrupt circuit operation, and even cause circuit board damage. Mo auala-pu, oe masani lava na o le mulimuli i tulafono a le DFM a CM.

L fesoʻotaʻiga

Depending on the connector type in terms of layout and placement, your board design may need to consider two considerations: the footprint of the connector board and the paneling. E masani lava, o le faʻatulagaina o le fesoʻotaʻiga poʻo le plug e le aofia ai avanoa mo fafo fafo poʻo uaea fesoʻotaʻiga. In these cases, maintaining state is important to ensure that the circuit actually performs as expected.

L ki

O le isi faʻaaoga lelei o le tupe faaleoleo o le saunia lea o se potu e faʻapipiʻi ai pe minoi faʻamoe ai ki.

O le lisi i luga atu maua ai nisi masani ituaiga ma faʻaaogaina mo PCB taofia. Ae i isi tulaga, e ui i lea, oe ono manaʻomia le faʻamalamalamaina o nofoaga faʻasao. Mo se faʻataʻitaʻiga, pe a faʻaaoga e lau mamanu ni vaega; Mo se faʻataʻitaʻiga, i mea faʻalautele, o loʻo i ai le tele faʻafitauli i le va o sao ma galuega faʻatino, e ono afaina ai le liʻo i taimi o faʻatonutonu, o lea e ono manaʻomia ai le tuʻuina atu o le puipuiga i lalo: PCB puipuiga mama. E ui lava e le faʻavasegaina o se puipuia eria, o le puipuiga mama e avea o se faʻalavelave faʻaletino i fafo atu vaega ma uaea, ma puipuia ai le taimi nei totonu mai le tuʻua o le eria. O lea ua matou sauni e vaʻai pe faʻafefea ona mautinoa o faʻamaoniga faia le latou galuega.

Aloese mai faʻalavelave

O faʻamanuiaga ole taofiofia ole PCB e faʻatoa aoga pe a fai latou te ausia moni a latou faʻamoemoega. Ole mea lea e maua ai le tuʻu eseʻese i vaega faapitoa ole laupapa mai soʻo se mea ma fafo atu uma. Ina ia ausia lenei mea, oe manaʻomia le mulimuli i nei lelei Keepout taiala.

PCB taofi mau

L Fuafua pe aisea e manaʻomia ai le taofia

L Fuafua pe fia le avanoa e manaʻomia e tusa ai ma le faʻaaogaina

L Faʻaaoga laupepa lolomiina e faʻailoa ai nofoaga faʻasao

L Faamautinoa o lau mamanu pepa aofia ai taofia faʻamatalaga

PCB taofi o se taua aseta i lau laupapa laupapa, faʻamautinoaina o loʻo faʻatinoina e pei ona fuafuaina. I le mulimuli i nei taʻiala ma faʻaaoga lelei uma ia mea, e mafai ona e aloese mai feteʻenaʻiga faʻalelei ma faʻaleleia atili le faʻatuatuaina o le PCBA pe a maeʻa ona tuʻuina atu.