Ngā Momo Konganuku mō ngā Wāhanga Hiko me ā rātou Tikanga Hanga
Ko te hoahoa ara iahiko me te matatau o te maramara te mea e tautuhia ana te hikohiko hou, ehara i te mea ko te hoahoa ara iahiko me te matatau o te maramara anake, engari ko te whiriwhiri i te konganuku tika mō ia wāhanga. He mahi nui tā ngā konganuku hei kawe hiko, hei rauemi whakapā, hei paninga ārai-waikura, hei taura wāhanga, hei rauemi whakapiri, tae atu ki ngā rauemi hanganga mō ngā totohu wera me te parenga hikohiko. He rerekē ngā āhuatanga o ia momo konganuku—te kawe hiko, te ātete ki te waikura, te kaha miihini, te ira rewa, me te ngāwari o te hanga—nō reira me whakarite te whiriwhiri kia rite ki ngā hiahia tono. Ka matapakihia e tēnei tuhinga ngā momo konganuku e whakamahia whānuitia ana i roto i ngā wāhanga hiko me ā rātou tikanga hanga i roto i te ahumahi.
1. Parahi (Parahi/Cu): Te Tuarā o ngā Kaiārahi
Ko te parahi te konganuku tino kaha i roto i ngā hikohiko nā te mea he tino teitei tōna kawe hiko, tōna ngāwari ki te whakangawari, me te utu whakataurite ki ngā konganuku utu nui. Ka whakamahia te parahi i roto i ngā papa ara iahiko tā (PCB), ngā taura, ngā takai mōtini/whakawhitiwhiti, ngā pae pahi, me ngā hononga.
Tikanga hanga:
– Te whakamahine me te whakamahine hiko: Ka whakamahia te konganuku parahi kia tino parakore (he maha ngā wā >99,9%). Mō ngā tono hiko, he mea nui te parakore kia iti ai te ātete.
– Te hurihuri me te whakamahana: Ka hurihia te parahi hei pepa angiangi (pepa konutea) mō ngā PCB, kātahi ka whakamahanatia (ka whakamahanatia, ka whakamataotia i runga i te tikanga whakahaere) kia māmā ake ai te tukatuka, kia māmā ake ai hoki.
– Te whakakikoruatanga parahi: I roto i te tukanga hanga PCB, ka taea te "whakatipu" i ngā ara parahi mā te whakakikoruatanga i ētahi wāhi hei whakanui ake i te matotoru o te ara.
2. Konumohe (Al): Māmā, Utu iti, me te Pono mō te Wera
He whānuitia te whakamahinga o te konumohe mō ngā totohu wera, ngā anga, ngā anga taputapu, me ngā pūnga hikohiko (hei pepa konutea). Ahakoa he iti ake tōna kawe hiko i tērā o te parahi, he tino pai te konumohe mō te mama, te ātete ki te waikura (nā tōna paparanga waikura tūturu), me te kawe wera pai.
Tikanga hanga:
– Te whakarewatanga mate me te whakaputanga: He maha ngā wā ka hangaia ngā totohu wera mā te whakaputanga (te pana i te konumohe mā roto i te mata) hei hanga i ngā tara whakamatao, te whakaputanga mate rānei mō ngā āhua uaua.
– Te Whakakāhoretia: He tukanga hikohiko e hanga ana i tētahi paparanga waikura matotoru ake, pumau ake. Ka whakanui ake te whakakāhoretia i te ātete ki te waikura, ā, ka taea te whakapai ake i ngā āhuatanga tuku wera (i runga i te mutunga).
– Te whakairo (mō te pepa konupūnga): Ka whakairohia te mata konumohe hei whakanui ake i te horahanga o te mata, kia piki ake ai te kaha o te kaha i roto i te rōrahi iti.
3. Te Tin (Sn) me te Konukōre Whakakotahi: Ngā Hononga i waenganui i ngā Wāhanga
Ko te tine te matū matua o te tūhono. Ka hono te tūhono i ngā wāhanga ki te PCB me te whakarite i te hononga hiko me te kaha ā-ringa. I ēnei rā, he maha ngā ahumahi e whakamahi ana i ngā tūhono kore-mata pērā i te SAC (Tin-Silver-Copper), pērā i te Sn-Ag-Cu.
Tikanga hanga:
– Te whakakoi (te hanga whakakoi): Ka konatunatua te tine ki te hiriwa me te parahi i roto i ētahi hanganga hei whiwhi i te ira rewa me te kaha hononga e tika ana.
– Te whakapiri anō: Ka tāia te whakapiri whakapiri (tānga tauira) ki runga i te papa PCB, kātahi ka whakamahanatia ki roto i te oumu anō kia rewa te whakapiri, kia hono ai.
– Te honohono ngaru: Mō ngā wāhanga puta noa i te kōhao, ka tukuna te papa ki runga i te ngaru o te honohono rewa kia honohonoa ai ngā waewae o te wāhanga.
4. Koura (Au): Pa Ārai-Waikura Tino Pai
E whakamahia ana te koura i roto i ngā hononga, i ngā papa whakapā, i ngā waea here, me ngā paninga pūwāhi whakapā nā te mea he ātete nui ki te waikura me te kawe hiko teitei. Mā te koura ka pumau ngā hononga ahakoa te whakamahinga maha me ngā taiao makuku.
Tikanga hanga:
– Te whakakikoruatanga koura: Ka pania he paparanga koura angiangi ki te mata o te hononga, o te papa rānei. Ka arotauhia te matotoru kia ātete ki te kakahu, me te kore he utu nui.
– Te herenga waea: I roto i te umanga haurua-ira, ka whakamahia te waea koura (me ētahi atu momo waea rānei) hei hono i te mata ki te anga arataki mā te tukanga herenga wera-oro/whakaataoro.
– ENIG i runga i te PCB: Ko tētahi momo whakaotinga rongonui i runga i te PCB ko te ENIG (Electroless Nickel Immersion Gold): ka whakakikoruatia te nikara me te kore he iahiko hiko, kātahi ka pania he paparanga angiangi o te koura hei paparanga o waho.
5. Hiriwa (Ag): Te Aroturukitanga Tino Nui mō ngā Ara Motuhake
Ko te hiriwa te mea tino kaha te kawe hiko i waenga i ngā konganuku noa, ā, ka whakamahia i roto i ngā mahi motuhake pēnei i ngā kawe hiko teitei, ngā whakapiri kawe hiko, ngā kiriuhi pātene, me ētahi hononga. Ko te wero, ka pirau te hiriwa nā tana tauhohenga ki te whanariki.
Tikanga hanga:
– Whakapiri hiriwa (tā mata): I roto i ngā ara iahiko ngāwari, i ngā kiriuhi rānei, ka tāia he tauira o ngā ara iahiko hiriwa mā te whakamahi i tētahi tikanga tā mata motuhake, kātahi ka whakamarokehia/whakaorahia.
– Whakakikorua hiriwa: Ka mahia te whakakikorua hiko ki ētahi hononga hei whakaiti i te ātete pa, inā koa i ngā iahiko teitei.
6. Nikara (Ni): Te Paninga Ārai me te Ātete ki te Mau
He maha ngā wā ka whakamahia te nikara hei paparanga ārai hei ārai i te horapa o te konganuku, hei whakapai ake hoki i te ātete ki te pakaru o ngā hononga. I roto i te whakaotinga PCB, ka whakamahia te nikara i mua i te koura (hei tauira, ENIG) nā te mea ka whakarato i te kaha me te pumau ki te papa.
Tikanga hanga:
– Whakakikoruatia te nikara kore-hiko: Ka whakaputa i tētahi paparanga nikara ōrite, kāore he iahiko, he pai mō ngā āhuahanga uaua.
– Te whakakikorua hiko nikara: Whakamahia mō ngā paninga e hiahia ana kia tino motuhake te whakahaere matotoru.
7. Palladium (Pd) me Platinum (Pt): Pūmau mō te Whakapā me te Paninga
E whakamahia ana te palladium i roto i ētahi hononga, hei whakakapi hoki i te whakakikorua koura hei whakapai ake i te ātete ki te kakahu i ētahi wā he iti ake te utu. Kāore i te tino whakamahia te konukawata nā te nui o te utu, engari nā te ātete matū teitei e pai ai mō ētahi tono pūoko.
Tikanga hanga:
– Paninga whiriwhiri: He maha ngā wā ka pania te Pd ki ngā wāhi e pā ana kia pai ai te utu.
– Te hanga i ngā irahiko pūoko: Ka taea te hanga i te Pt hei irahiko angiangi mā te whakatakoto i ngā tauira me te tānga tauira (ina koa i roto i ngā pūoko me ngā taputapu moroiti).
8. Te Rino, te Maitai, me ngā Koranu Hanganga: Te Kaha Ā-Mīhini me te Parepare
E whakamahia ana ngā koranu maitai me te rino mō ngā anga, ngā tīwiri, ngā anga, me ngā whare e hiahia ana ki te kaha. Hei tāpiri, ka taea te whakamahi i ētahi pepa konganuku hei parenga EMI.
Tikanga hanga:
– Te tā me te piko: Ka tapahia (tā) ngā rau maitai, ka pikohia hei hanga i ngā whāriki, ngā taupoki, me ngā anga.
– Paninga ārai-waikura: Ko te maitai he mea pani ki te konutea (whakapūmau), ki te nikara, ki te peita/paura rānei hei ārai i te waikura.
– Te hanganga o te kēne whakangungu rakau: Ko ngā whakangungu rakau EMI i runga i ngā PCB he mea hanga mai i ngā rau whakarewa angiangi kua tāia, kātahi ka tāpirihia ki te tūhono, ki ngā topenga rānei.
9. Anga Ara: Parahi me ngā Koranu Parahi mō te Tākai IC
I ētahi mōkihi IC, ka hangaia ngā anga mata ki te parahi, ki ōna koranu rānei nā te mea he pai te kawe hiko me te ngāwari ki te hanga tika.
Tikanga hanga:
– Te tāmi haere tonu: Ka tukatukahia te pepa whakarewa i ngā wāhanga mā roto i ngā mate hei hanga i ngā waewae o te IC.
– Te whakairo matū: He huarahi kē atu mō ngā taipitopito angiangi, mā te whakamahi i ngā matū hei "whakairo" i te tauira anga mata.
– Whakakikorua (Sn, Ni, Ag, Au): Kua pania te anga mata hei whakapai ake i te āheinga ki te whakarewa me te ātete ki te waikura.
10. Ngā Paearu mō te Kōwhiringa o ngā Konganuku i roto i ngā Hikohiko
Ehara i te mea ko te kawe hiko anake te mea e whiriwhiria ana e ngā kaihoahoa. Ka whai whakaaro anō hoki rātou ki:
1. Te kawe hiko me te ātete pa (hei tauira, te parahi, te hiriwa, te koura).
2. Ātete ki te waikura/waikura (he tino pai te koura, ko te nikara hei ārai).
3. Te kaha me te pakaru o te miihini (te maitai, te nikara, te konupora).
4. Mahi wera (konumohe mō te totohu wera).
5. Te hototahitanga o ngā tukanga hangahanga pērā i te whakapiringa anō, te whakakikorua, me te tā.
6. Te utu me te wātea o ngā rauemi me te pumau o te mekameka tuku.
Te Katinga
Ko ngā konganuku te "tūāpapa ā-tinana" e āhei ai ngā tohu hiko ki te rere, te whakamarara i te wera, me te pumau o ngā hononga i roto i ngā taputapu hiko. Ko te parahi te mea nui rawa atu i te ara kawe hiko, ko te konumohe te mea tino pai ki te whakahaere wera, ko te tine me ōna koranu e pupuri ana i ngā wāhanga mā te whakapiri, ko te koura, te hiriwa, te nikara, me te palladium e whakarite ana i te kounga o te whakapā me te ātete ki te waikura. I muri i ēnei konganuku, ko ngā tikanga hanga pēnei i te hurihuri, te tā, te whakaputa, te whakairo, te whakakikorua, me te whakapiringa anō he mea nui ki te hanga papatipu kounga teitei o ngā wāhanga hiko. Mā te mārama ki ngā āhuatanga o ngā konganuku me ā rātou tikanga hanga, ka taea e tātou te hoahoa i ngā taputapu pono ake, whai hua ake, me te roa ake.
Ki te hiahia koe, ka taea e au te whakarerekē i tēnei tuhinga ki tētahi horopaki motuhake—hei tauira, te arotahi ki te umanga PCB, hononga, te huihuinga SMT rānei—me te tāpiri i tētahi rārangi pukapuka me ngā rauemi hangarau.
