Me pēhea te ārai i ngā kōhao kore-parahi i roto i ngā PCB ōwehenga āhua teitei: Ngā māramatanga matua mō te hanga PCB

Te Mārama ki te Hiranga o te Tauwehenga Rahi ki te Matotoru o te Pūwero i roto i te Hanganga PCB

I roto i te hanga PCB, ko te ōwehenga rahi o te kōhao ki te matotoru, e mōhiotia ana hoki ko te ōwehenga āhua, he mea nui e pā ana ki te kounga o te whakakikoruatanga o te kōhao. Ka tatauhia tēnei ōwehenga mā te wehewehe i te matotoru o te PCB ki te whānui o te kōhao, e kiia ana ko te ōwehenga roa-ki-te-whānui (L/D).

Hei tauira, mēnā he 1.60 mm te matotoru o te PCB, ā, he 0.2 mm te whānui o te kōhao, ko te ōwehenga āhua he 8:1. Ko ngā ōwehenga āhua iti ake e tohu ana i ngā papa angiangi ake me ngā kōhao nui ake, ā, ko te tikanga ka pai ake ngā hua whakakikorua nā te tohatoha katote ōrite i te wā o te tukanga whakakikorua hiko.

Heoi anō, ngā PCB ōwehenga āhua teitei—ko ērā he papa angiangi me ngā kōhao iti—he wero nui tēnei i te wā o te tukanga whakakikorua hiko, ka hua ake he hapa pēnei i te ngā kōhao kore-parahi (e mōhiotia ana ko "blind vias" "voids" rānei) me te whakakikorua kounga iti.

He aha ngā take o ngā kōhao kore-parahi i roto i ngā PCB ōwehenga āhua teitei?

1. Ngā Mirumiru Iti me te Ārai
   I roto i te tikanga tuku iho whakakikorua hiko iahiko (DC) I roto i te tukanga, ka mau pea ngā mirumiru moroiti i roto i te kōhao i te otinga whakakikorua hiko, ka kore ai e whakakikoruatia te parahi ki ngā pakitara o te kōhao. Ka ārai pea ēnei mirumiru i te rere o te parahi, ka hua ake he wāhi kāore i te rawaka te whakatakotoranga parahi.
2. Te Horoi Kino i te Wā o mua i te Maimoatanga
   Ki te kore e horoia tika te PCB i mua i te whakakikoruatanga, tera pea ka toe ngā poke, ngā toenga rānei ki roto i ngā kōhao. Mā tēnei ka ārai i te parahi kei piri ki ngā pakitara o te kōhao, ka puta he āputa me ngā wāhi ngoikore.
3. Ngā hapa o te wiri
   Ina keri ana i ngā kōhao ōwehenga teitei, ki te kore e koi te mata o te keri, ka raru pea te mata o roto o te kōhao. Engari i te tango maeneene i te rauemi, ka kumea pea e te mata o te keri, ka haehae rānei i te kapia, i te muka karāhe rānei, ka waiho he mata taratara. Ka ārai pea tēnei i te tukanga whakakikorua, ā, ka kore e pai te piri o te parahi.

Te Pānga o te Tauwehenga Āhua Teitei ki te Kounga Whakakikorua

Mō ngā PCB ōwehenga āhua teitei (hei tauira, 14:1, 16:1, tae noa ki te 20:1), ka nui ake te uaua o te tukanga whakakikorua. He uaua ki te otinga whakakikorua hiko te whakatakoto i te parahi kia ōrite, inā koa ki ngā rohe o roto o ngā kōhao, ā, ka hua ake he te pānga wheua-kurīKo te tikanga tēnei ka whānui ake te tihi o te kōhao, engari ka noho tonu te wāhanga o raro ki raro i te whakakikoruatia.

Hei tāpiri, ko te poka te matotoru o te au hiko ka rerekē puta noa i te mata o te kōhao. I te tomokanga o te kōhao, he teitei ake te mātotoru o te iahiko, engari i ngā wāhanga hohonu ake, he iti iho. Nā tēnei tohatoha kore taurite ka hua ake he whakakikoruatanga ngoikore i ngā wāhanga o raro o te kōhao, ka whai wāhi ki te hanganga o ngā kōhao kore-parahi.

Ngā Otinga Matatau hei Ārai i ngā Kōhao Kore-Parahi i roto i ngā PCB Tauwehenga Āhua Teitei

Hei karo i ēnei raruraru, kei te tahuri ngā wheketere hanga PCB hou ki whakakikoruatanga pātere hangarau, e wikitoria ana i ngā herenga maha o te whakakikorua hiko DC tuku iho.

Te Whakakikorua i te Pūwero mō te Whakatakotoranga Parahi ōrite

Ka whakamahia e te whakakikoruatanga pātere te au hurihuri me ngā pātere whakahaere hei whakanui ake i te pai o te whakatakoto parahi. He rerekē ki te whakakikoruatanga DC tikanga, ka whakarei ake te whakakikoruatanga pātere i te nekehanga katote i roto i te kōhao, ka taea ai te whakatakoto parahi ōrite puta noa i te kōhao, i te tomokanga me ngā rohe hohonu ake. Ka hua ake tēnei i te kounga whakakikoruatanga pai ake, ā, ka ārai i te hanganga o ngā kōhao kore-parahi.

Hei tāpiritanga, mā te whakakikoruatanga pātītī ka taurite te whakatakotoranga o te parahi me te kore e tino whakanui i te matotoru o te parahi ki te mata o te papa, ka mau tonu te pono o ngā ara iahiko kiato teitei, ngā rārangi angiangi, me te ārai tika.

Rautaki Kē

1. Ngā Tikanga Keri Whakapai Ake
   Mā te whakamahi i ngā wiri tino tika ka maeneene ake, ka ma ake ngā kōhao, ka whakapai ake i te kounga o te mata, ā, ka whai hua ake te tukanga whakakikorua.
2. Te Maimoatanga-Mua i Arotauhia
   Mā te horoi me te tiaki pai i ngā kōhao PCB ka pai ake te piri o te parahi. whakairo matū rānei te horoi plasma Ka taea e ngā tikanga te whakakore i ngā poke katoa, me te whakapai ake i te kounga o te pakitara o te kōhao, ka hua ake he hua whakakikorua pai ake.
3. Te Whakamahinga o ngā Taputapu Whakatakotoranga Matatau
   Ka whakamahia e ngā wheketere PCB hou ngā taputapu kua hangaia mō te whakahaere i ngā PCB ōwehenga āhua teitei. Kei roto i tēnei ko ngā tāke whakakikoruatia hiko kua whakapaitia, ngā pūnaha tātari otinga matatau, me ngā tikanga whakahaere au pai ake.

Me pēhea te hanga i te kōhao i te pikitia i raro nei?

✅Otinga: Ka taea e te VCP pāorooro a Richfulljoy te karo i te puta pinepine o ngā poka me ngā kōhao nui i roto i te whakakikoruatanga DC. He teitei te whai huatanga o te whakakikoruatanga kiato iahiko, ā, i raro i te pūnaha whakakikoruatanga pāorooro, ka taea e ia te whakapai ake i te roto me te waho o te kōhao. Ka taea te whakatutuki i te pānga tohatoha paninga, ā, kāore e piki ake te parahi mata, ā, kāore e piki ake te parahi mata, ā, ka taea te whakamana i te ara iahiko angiangi me te aukati tino tika.

Te Whakapai Ake i te Kounga i roto i te Hanga PCB Tauwehenga Ahua Teitei

I roto i te hanga PCB ōwehenga āhua teitei, ka ārai i te ngā kōhao kore-parahi he mea nui mō te pupuri i te pono me te mahi a te hua. Mā te mārama ki ngā wero e pā ana ki te whakakikorua i roto i ngā hoahoa ōwehenga āhua teitei me te whakamahi i ngā hangarau matatau pēnei i te whakakikoruatanga pātere, ka taea e ngā kaihanga PCB te whakarite kia rite tonu, kia pono hoki te kounga whakakikorua.

Mena kei te whai wāhi koe ki Te hanga PCB te mahi tahi rānei me Ngā wheketere hanga PCB, he mea nui kia mōhio ki ēnei tikanga, kia mahi tahi me ngā kaihanga he tohungatanga ki te whakahaere i ngā PCB ōwehenga āhua teitei me te hangarau hou.