PCB parahi matotoru

E pā ana tēnei ki ngā papa hiko tānga he matotoru te pepa parahi ≥3oz (105μm), e whakamahia ana i roto i ngā pūhiko hiko mana-tiketike, ngā hikohiko motuka, me ētahi atu.

Ko ngā whakatakotoranga noa ko te 3oz, 4oz, 5oz, 6oz, me te mōrahi o te 20oz.

E 30%-80% te teitei ake o te utu hanga nā te uaua o te whakairo, te roa o te wā whakakikorua hiko, me te tere o te para.

Mō te pepa parahi 3oz, ko te tikanga he 8mil/8mil, ā, ka taea e ngā tukanga motuhake te whakatutuki i te 5mil/5mil.

Me whakatō roa kia ōrite ai te paparanga parahi. Me eke te matotoru o te parahi o te kōhao ki te 25-75μm, ā, ka rerekē pea te matotoru i waenga i ngā whakatuwheratanga kōhao me ngā pakitara.

Ko te tikanga he 0.8-1.2, ka taea te whakanui ake ki runga ake i te 1.5 mā te whakairo taahiraa, mā te hanga taiaho rānei.

Whakanuia ake ngā arai wera (kōhao ≥0.4mm), whakamahia ngā rauemi kawe wera e ahu mai ana i te konganuku, me te hoahoa i ngā paparanga pepa parahi whānui.

Mō te pepa parahi 1oz, ko te kaha kawe iahiko o te waea taha-kotahi i te pikinga pāmahana 10℃ he tata ki te 1A/mm, ā, ka taea te whakanui ake i te 3oz ki te 2.5-3A/mm.

Ka matotoru ake te pepa parahi, ka kino ake te ngāwari. Kāore e tūtohutia kia piko mō te taumaha neke atu i te 6oz, ā, ko te iti rawa o te radius piko mō te 3oz he ≥5mm.

Ko te whānui o te rārangi tawhē ≥20%, ko te āputa iti rawa ≥0.3mm, ko te matotoru o te kōhao parahi ≥25μm, ā, ka whakanui ake i te kiato o ngā pūwāhi whakamātautau.

Ko te tere hurihuri he 20%-30% te iti iho i tērā o te PCB noa (tata ki te 60,000-80,000 hurihanga ia meneti), ā, ko te tere whāngai he 0.02-0.04mm/hurihanga.

He pai te ENIG mō ngā tohu auau-teitei. He iti te utu o te OSP engari he ngoikore te ātete ki te waikura. He pai te whakakikorua koura mārō mō ngā hononga mono-teitei.

I te awhe auau 10GHz, ko te ngaronga tohu o te pepa parahi 6oz he 1.5dB/inihi teitei ake i te 1oz.

He hoahoa konumohe parahi ōrite, he pāmahana whakapiri 180-200℃, he pēhanga 100-150psi, he tere whakamatao ≤3℃/min.

Ko te paerewa IPC ≤12.5μm, ko ngā tohu tere-tiketike e hiahia ana ki te ≤5μm, ka taea te whakapai ake mā te whakatakotoranga parahi matū me te whakakī hiko.

Ko te toharite o te ahumahi he 75%-85%, ā, ko te hua mō runga ake i te 6oz ka heke pea ki raro iho i te 70%.

Ngā waka pūngao hou (ngā pou utu, ngā kaitahuri), ngā pūngao hiko ahumahi, ngā pūngao hiko tūmau, te rererangi me ētahi atu mara.

Ko ngā tono ngaohiko teitei 0.8-1.2mil tikanga e hiahia ana ki te 1.5-2mil, me taupokina te pepa parahi hei ārai i te ngokingoki.

Whakaitihia ngā tukanga motuhake, whakakotahihia te matotoru o te pepa parahi, whakanuia te rahi o te puranga, ā, karohia te maha rawa o ngā vias matapo/huna.

Ko te kaha tukatuka o te otinga whakakikorua parahi waikawa he tata ki te 100-150Ah/L, ā, me tātarihia tonutia ngā kukū o ngā katote parahi me ngā katote pūhaumāota.

Kaha kiri ≥1.5N/mm (1oz), 3oz me ≥2.5N/mm.

Whakamahia he papa Tg teitei (≥170℃), he pēhanga whakapiri ōrite, ā, tangohia wawetia ngā para o te keri i muri i te keri.

Te pāmahana otinga whakairo kawakore 45-55℃, te taumaha motuhake 1.2-1.3, te pēhanga rehu 0.8-1.2MPa.

Me hipoki rawatia ngā awaawa ki te kopare whakapiri, ā, me nui ake te rahi o te whakatuwheratanga i te 0.2-0.3mm i te pūaha hei ārai i te waipuke o te whakapiri.

Ka puta ngā rerekētanga o te aukati i ngā panonitanga o te matotoru o te pepa parahi. He mea tika kia whakatauirahia, kia arotauhia hoki te whānui o te rārangi me te matotoru o te dielectric me te manawanui o te ±5%.

Ko te tukanga tuku iho he 0.3mm, ā, ka taea e te keri taiaho te eke ki te 0.15mm engari he nui te utu.

Me paahi i te whakamātautau rumaki tine e toru ngā wā i te 260℃/10s, me te kore e wehea te pakitara kōhao, e tihorea rānei te pepa parahi.

Ina he taratara Ra>3μm, ka piki te ngaronga tohu mā te 10%-15%, ā, me whakamahi te pepa parahi taratara iti (VLP).

Whakamahia he hoahoa konumohe parahi mata, whakanuia ake ngā ara whakawhiti o nāianei, me te whānui o te rārangi o ngā ara matua ≥10mil.

Mō te ≥4mil tikanga, me ≥8mil te ngaohiko teitei hei ārai i te pakaru o te mura.

Ko te mātotoru o te iahiko he 0.8-1.2A/dm², he tika te whakahaere i te kukū tāpiri, ā, ko te wā whakakikorua he 2-3 ngā wā e nui ake ana i te PCB noa.

Whakamahia he taputapu ine whatu 3D, he piko te whatu ≤0.7% me te rerekētanga ā-rohe ≤0.1mm.

Te wā ruku ≤3 hēkona, te koki mākū

Whakapaipaihia te hoahoa o te papaaho, whakaitihia te para o te rohe, me te whakamahi i te hoahoa rohe matotoru o te pepa parahi.

Ko te kukū katote palladium he 0.02-0.05g/L, te pāmahana 30-35℃, te wā 10-15 meneti hei whakarite kia kapi katoa te pakitara o te kōhao.

Ka taea e te matotoru hiko 1mil te tu atu ki te 500V, ā, me hoahoa te mokowā whakamarumaru me te mokowā konumohe parahi kia rite ki te taumata ngaohiko.

Te haumākū rokiroki ≤40%, te pāmahana ≤25℃, te takai i te wā tika i muri i te maimoatanga mata, me te whakamahi i ngā putea ātete makuku me ngā whakamaroke.

Ko te tere o te tapahi mira he 25,000-30,000 hurihanga ia meneti, ko te tere whāngai he 800-1200mm/min hei ārai i ngā koki taha.

Tunua ki te 150-160℃ mō te 60-90 meneti, mēnā he pakeke ≥2H, ā, ka eke te piri ki te whakamātautau tapahi-whakawhiti.

Ko te whānui o te rohe wehea ≥20mil, karohia ngā koki koi, me te hono i ngā paparanga mana rerekē ki ngā rarangi mā roto.

Ko te pakeke o Vickers ≥80HV hei ārai i ngā kino me ngā kakahu ā-ringa.

Tukanga DES, kukū pāhare pākawa waro 80-100g/L, pāmahana 60-70℃, wā 15-20 meneti.

Whakamahia ngā rauemi hiko iti Dk/Df, whakahaeretia te taratara o te pepa parahi, me te arotau i te haere tonu o te papa whenua.

Whakamahanahia i muri i te whakakī, kia mau ki te 120-150℃ mō ngā haora 2-3 hei tuku i te ahotea.

Me tu atu ki te murunga ki te waipiro isopropyl, te flux, me ētahi atu, me te kore e pupuhi, e memeha rānei.

Me wehe atu i te ≥20mil te tawhiti, ā, kaua e wera rawa, kia rite ki te putiputi paramu.

Hangarau whakakikorua hiko pāorooro, 10-15cm te tawhiti i waenganui i te anode me te papa, ā, tirohia tonutia te wairewatanga o te anode.

Ko te utu mō te keri taiaho he 3-5 ngā wā, engari he nui ake te tika me te iti ake te kōhao.

He tere te whakarewatanga rumaki hiriwa, he tino pono te ENIG, ā, me whakaoti te whakarewatanga a te OSP i roto i ngā haora 72.

Kōwhiria he papa he rite te CTE ki te pepa parahi (pērā i te Tg FR-4 teitei me te CTE tata ki te 14ppm/℃) hei whakaiti i te ahotea wera.

Ko te paerewa IPC e hiahia ana ki te ≤10 pore/cm², ā, ko ngā tono pono teitei e hiahia ana ki te ≤5 pore/cm², ka taea te whakapai ake mā te whakakikorua hiko mā roto i te kōhao.

Te whānui o te papa = te whānui o te kōhao + 0.6mm (tikanga), ā, me whakanui ake i te 0.1-0.2mm mō ngā pouaka parahi matotoru hei whakakapi i te rerekētanga o te whakairo.

He kaha te mimiti wera o te ātete parahi pango, ā, he 3-5℃ te pāmahana o te mata i te ātete parahi mā, engari he iti noa te pānga ki te mararatanga wera whānui.

Ko te matotoru o te paparanga nikara he 3-5μm, ko te matotoru o te paparanga koura he 0.05-0.1μm, ko te wairewa whakakikorua he pH 4.8-5.2, ko te pāmahana he 85-90℃.

Ka whakamahia te tukanga whakairo moroiti matū, me te whakahaere i te nui o te whakairo moroiti i te 0.5-1μm, mā te huri ā-ringa rānei.

Ko te ngaohiko whakamātautau tuku iho ko 1000V AC/1 meneti, ā, me whakapiki ake ngā tono ngaohiko teitei ki te 2000-5000V AC.

I raro i te pepa parahi 3oz, e taunakihia ana kia ≤15cm²/100cm² te matotoru o te waea taha-kotahi, ā, me whakataurite ngā papa papa-maha i te pono o te tohu me te kaha kawe-iao.

Me ≥20% te tere whakaroa kia kore ai e whati i raro i te ahotea ā-ringa.

±50μm (noa), me whakapai ake ngā papa tere-nui ki te ±25μm, mā te whakamahi i te pūnaha tūnga taiaho.

Me tu atu i te whakapiringa anō i te 280℃ mō te 5 hēkona, me te kore e pupuhi, e ngatata rānei.

Ko te whakamātautau tihore 90° e whakamahia ana hei tuhi i te kaha tihore mō ia whānui, me te paerewa ≥1.5N/mm.

Ko te ōwehenga o te hohonutanga o te kōhao matapo ki te whānui o te kōhao (ōwehenga āhua) ≤3:1 hei ārai i te whakakī hiko ngoikore.

Me whakahaere te nui o te whākawa i roto i te paparanga whakakikorua nikara kore-hiko i te 7%-9% kia kore ai e waikura.

Ka whakamahia ngā mīhini mira pania (pērā i te paninga TiAlN), ā, ka whakakapia ngā mīhini mira i ia wā (ka whakakapia i ia 50-100 mita o te tukatuka).

Whakahaerehia te haere tonu o te aukati, whakaitihia mā te Stub roa, whakamahia te tuku tohu rerekētanga, me te tāpiri i tētahi paparanga whakamarumaru.

±10% (tikanga), ā, me whakahaere ngā tono tino tika i roto i te ±5%.

Whakamātautau whakawhiti-tapa, ā, ka tohua mēnā he ≤5% te horahanga 脱落 i muri i te tihorenga rīpene.

Ka whakamahia te ringihanga parahi āhua-whatu (te mokowā whatunga ≤10mil) hei whakataurite i te kawe-iao me te hokinga mai o te tohu.

Te ahotea kume ≤15MPa, te ahotea kōpeketanga ≤10MPa, hei ārai i te whakarerekētanga o te pepa parahi.

Kāore he toenga kapia, he para keri rānei, i whakaūtia e te tirohanga wāhanga whakarewa.

I muri i te pakeketanga i te 85℃/85% RH mō ngā hāora 168, ko te rerekētanga tae ΔE≤3.

Ka whakamahia he kōtaha mata hei ine i te uara Ra, ā, ko te Ra o te pepa parahi tikanga he ≤5μm.

Ka taea e te mā kotahi 0.5mm te kawe i te 0.5-1A, ā, me whakatau te maha o ngā mā i runga i te tono o nāianei.

Ka whakamahia he ine hihi-X (XRF) hei ine i te matotoru o te paparanga parahi i ngā tūranga rerekē, me te rerekētanga ≤10%.

Te ātete ine ā-ahua ±0.1mm, te peka koki ±0.5°.

Whakatauritehia te aukati o te pūrua, arotauhia te āhua o ngā tohu, me te whakaiti i ngā tohu koki-matau me ngā motumotu aukati.

Ka taea te rongoā i te waikura iti mā te whakairo matū moroiti, ā, me rongoā anō te mata mō te waikura nui.

Te taumahatanga o te mata 25-35N/cm, te pēhanga o te squeegee 3-5kg/cm, te tere 30-50mm/s.

Kei te taha tata te paparanga mana me te paparanga whenua, kei waenganui ngā paparanga tohu, ā, ka whakahaeretia te ōritetanga o te matotoru reo.

Ka whakamahia he taputapu whakamātautau mārō micro-Vickers, me te tawhiti i waenga i ngā pūwāhi whakamātautau ≥0.5mm, kātahi ka tangohia te uara toharite.

Ka whakamahia te tūnga o ngā pūwāhi tohu, ā, ka kitea te peka ke, ka whakatikatikaina e te taputapu AOI.

I muri i te 500 mirimiritanga (500g te pēhanga), kāore he pakaru e kitea ana, kāore hoki he pānga ki te parahi.

Whakamahia ngā rauemi paparanga ārai (pēnei i ngā kiriata piri e kawe ana i te wera) me te hoahoa rānei i ngā mokowā whakaiti ahotea.

Ka taea te whakamahi i te mono kapia me te whakakikorua mata ki te hiko, te whakakī rānei i te whakapiri honohono kātahi ka whakamaroke.

Ka whakamahia te tikanga uruhanga hau, te mātakitaki karuārai whakarewa rānei, hei tatau i te maha o ngā pūwero mō ia horahanga.

Ka puta he pūwero ki te tere teitei rawa, ā, ka pā te tere iti ki te pai o te mahi, me whakarerekē tēnei kia rite ki te matotoru o te pepa parahi.

Whakanuia te mokowā tohu (ture ≥3W), tāpirihia ngā rārangi parepare whenua, ā, arotauhia te tohatoha paparanga ara.

Ka rerekē te āhua me te ngatata o te pepa parahi i te ahotea toenga, ka whakaiti i te pono mō te wā roa.

Ka taea te tā anō ā-ringa i ngā hapa ā-rohe, ā, me tā anō, me whakatika hoki ngā hapa nui.

Ko te mokowā mā ≥20mil, ka tatauhia te tau i runga i te tono e kawe ana i te iahiko, ā, ka tohatohahia kia ōrite.

Ka whakamahia te tikanga whakatītaha hihi-X, te whakamātautau mowhiti ahotea rānei, hei ine i te uara ahotea ā-roto.

Ka hua te whakapuru hiko kore taurite i te taratara nui, ā, ka nui ake te rerekētanga matotoru o te kōhao parahi.

I muri i te whakamātautau pakeketanga UV (500 hāora), kāore he tae ke, he tohu rānei e kitea ana.

Ko te roa o te wā e whakauruhia ai, e tangohia ai hoki te koura mārō he neke atu i te 1000 ngā wā, ā, ko te tukanga rumaki koura he tata ki te 50-100 ngā wā.

Ko te utu mō ngā vias matapo me ngā vias tanumia he 30%-50% teitei ake i tērā mō ngā poka mā roto, ā, he nui ake te pikinga o te utu mō te parahi matotoru.