He aha nā mea e pono ai no ka Papa PCB Press-fit Structure Design?

Hoʻokumu nui ʻia ʻo Multilayer PCB me ka foil keleawe, ka pepa semi-cured, ka papa kumu.ʻElua ʻano o ka paʻi paʻi paʻi, ʻo ia hoʻi ʻo copper foil a me ka papa kumu paʻi paʻi paʻi a me ka papa kumu a me ka papa paʻi paʻi paʻi.Hiki ke hoʻohana ʻia ke ʻano lamination kumu.E hoʻomaopopo ʻo ke kūkulu paʻi ʻia (PCB Construction) a me ke kiʻikuhi wili o ke kaʻina papa i hoʻopaʻa ʻia (Stack-up- layers) ʻelua mau manaʻo like ʻole.ʻO ka mea mua e pili ana i ka PCB i hoʻopili pū ʻia i ka wā i hoʻopaʻa ʻia ai ka hale, ʻike ʻia hoʻi ʻo ka hoʻonohonoho hoʻopaʻa ʻana, ʻo ka mea hope e pili ana i ka hoʻonohonoho hoʻonohonoho ʻana o ka PCB, ʻike ʻia hoʻi ʻo ke kauoha stacking.

1. Paʻi pū ʻia nā koi hoʻolālā hale

I mea e hōʻemi ai i ka PCB warpage phenomena, pono e hoʻokō ka PCB i nā koi symmetry, ʻo ia hoʻi, ka mānoanoa o ka pahu keleawe, ka ʻāpana ʻāpana media a me ka mānoanoa, ke ʻano o ka hāʻawi ʻana i nā kiʻi (laina laina, papa mokulele), paʻi pū ʻia me ka pili like. i ke kikowaena kūpaʻa o ka PCB.

2. Conductor keleawe mānoanoa

(1) ka mānoanoa keleawe conductor i ʻike ʻia ma nā kaha kiʻi no ka mānoanoa keleawe i hoʻopau ʻia, ʻo ia hoʻi, ka mānoanoa keleawe o waho no ka mānoanoa o ka pahu keleawe lalo a me ka mānoanoa o ka papa plating, ka mānoanoa keleawe o loko no ka mānoanoa o loko. ʻeleʻele keleawe lalo.ʻO ka mānoanoa keleawe o waho ma ke kaha kiʻi i kaha ʻia ʻo "ka mānoanoa keleawe keleawe + ka uhi ʻana, a ʻo ka mānoanoa keleawe o loko i kaha ʻia ʻo "ka mānoanoa keleawe".

(2) 2OZ a ma luna o ka mānoanoa lalo keleawe noi noonoo.

Pono e hoʻohana symmetrically a puni ka hale laminated.

E like me ka hiki ke pale aku i ka waiho 'ana i loko o ka L2 a me ka Ln-2 papa, 'o ia hoʻi, Top, lalo ili o ka lua o waho papa, i mea e pale ai i ka PCB ili unevenness, wrinkling.

3. Paʻi ʻia nā pono hana

ʻO ke kaʻina hana ʻo ke kaʻina hana nui o ka hana PCB, ʻoi aku ka nui o nā manawa i kaomi ʻia a me ka pololei o ka disc alignment e ʻoi aku ka maikaʻi, ʻoi aku ka nui o ka deformation PCB, ʻoi aku ka nui o ka hoʻopili ʻia ʻana o ka asymmetric.Pono e kūlike nā koi lamination no ka lamination, e like me ka mānoanoa keleawe a me ka mānoanoa media.