He nui te wā kua pau i te umanga rauemi PCB ki te whakawhanake i ngā rauemi e whakarato ana i te ngaronga tohu iti rawa. Mō ngā hoahoa tere teitei me te auau teitei, ka whakawhāitihia e ngā ngaronga te tawhiti horapa tohu, ka whakapēpēhia hoki ngā tohu, ā, ka puta he rerekētanga ātete ka kitea i roto i ngā inenga TDR. I a mātou e hoahoa ana i tētahi papa ara iahiko tā me te whakawhanake i ngā ara iahiko e mahi ana i ngā auau teitei ake, tera pea he mea whakamatautau ki te whiriwhiri i te parahi maeneene rawa atu i roto i ngā hoahoa katoa e hangaia ana e koe.

Ahakoa he pono ka puta he rerekētanga ātete me ngā ngaronga i te taratara o te parahi, me pēhea te maeneene o tō pepa parahi? He huarahi ngāwari hei whakakore i ngā ngaronga me te kore e whiriwhiri i te parahi tino maeneene mō ia hoahoa? Ka tirohia ēnei kōrero i roto i tēnei tuhinga, me ngā mea ka taea e koe te rapu mēnā ka tīmata koe ki te hokohoko rauemi whakapūranga PCB.

Ngā momoPepa Parahi PCB

I te nuinga o te wā, ina kōrero tātou mō te parahi i runga i ngā rauemi PCB, kāore tātou e kōrero mō te momo parahi motuhake, engari mō tōna taratara anake. He rerekē ngā tikanga whakatakoto parahi ka puta he kiriata me ngā uara taratara rerekē, ka taea te wehewehe mārama i roto i te ahua o te karu hiko matawai (SEM). Mēnā kei te mahi koe i ngā auau teitei (5 GHz WiFi, neke atu rānei) i ngā tere teitei rānei, me aro ki te momo parahi kua tohua i roto i tō pepa raraunga rauemi.

Me mārama hoki ki te tikanga o ngā uara Dk i roto i tētahi pepa raraunga. Mātakihia tēnei kōrerorero podcast me John Coonrod o Rogers kia nui ake ai ngā āhuatanga o te Dk. Me te maumahara ki tēnā, me titiro tātou ki ētahi o ngā momo pepa parahi PCB rerekē.

Kua whakatakotoria ki te hiko

I tēnei tukanga, ka mirohia he pahu i roto i tētahi otinga hikohiko, ā, ka whakamahia he tauhohenga whakanoho hikohiko hei "whakatipu" i te pepa parahi ki runga i te pahu. I te hurihuri o te pahu, ka ata takaihia te kiriata parahi ka puta ki runga i tētahi roera, ka puta he pepa parahi tonu ka taea te huri i muri mai ki runga i tētahi papa whakarewa. Ko te taha pahu o te parahi ka rite ki te taratara o te pahu, ko te taha e kitea ana ka tino taratara.

Pepa parahi PCB kua whakatakotoria ki te hiko

Te whakaputanga parahi hiko.
Hei whakamahi i roto i te tukanga hanga PCB paerewa, me hono tuatahi te taha taratara o te parahi ki te dielectric karāhe-reini. Ko te parahi e toe ana (te taha pahu) me whakataratara mā te matū (hei tauira, mā te whakairo plasma) i mua i te whakamahinga i roto i te tukanga whakakī parahi paerewa. Mā tēnei ka taea te hono ki te paparanga e whai ake nei i roto i te puranga PCB.

Parahi Whakatakoto Hiko i Mata-Maimoatia

Kāore au i te mōhio ki te kupu pai rawa atu e kapi ana i ngā momo mata katoa kua rongoatia.pepa parahi, koia te pane i runga ake nei. Ko ēnei rauemi parahi e mōhiotia whānuitia ana ko ngā pepa whakarewa kua tukatukahia whakamuri, ahakoa e rua atu ngā momo e wātea ana (tirohia i raro).

Ka whakamahia e ngā pepa whakarewa kua tukatukahia whakamuri he maimoatanga mata e pania ana ki te taha maeneene (te taha pahu) o te rau parahi kua whakanohoia ki te hiko. He paninga angiangi noa te paparanga maimoatanga e whakararo ana i te parahi, kia nui ake ai te piri ki te rauemi dielectric. Ka mahi anō hoki ēnei maimoatanga hei arai waikura e ārai ana i te waikura. Ina whakamahia tēnei parahi hei hanga panera laminate, ka herea te taha kua tukatukahia ki te dielectric, ā, ka noho kitea tonu te taha taratara e toe ana. Kāore e hiahiatia he whakararo anō mō ​​te taha e kitea ana i mua i te whakairo; kua nui kē tōna kaha hei hono atu ki te paparanga e whai ake nei i roto i te puranga PCB.

E toru ngā momo rerekētanga o te pepa parahi kua tukatukahia whakamuri:

Pepa parahi whakaroa pāmahana teitei (HTE): He pepa parahi kua whakanohoia ki te hikohiko tēnei e tutuki ana i ngā whakaritenga IPC-4562 Tau 3. Ka pania hoki te mata e kitea ana ki te ārai waikura hei ārai i te waikura i te wā e rongoa ana.
Pepa konutea-rua: I roto i tēnei pepa konutea parahi, ka pania te maimoatanga ki ngā taha e rua o te kiriata. I ētahi wā ka kiia tēnei rauemi he pepa konutea-taha-pahu.
Parahi ātete: Kāore tēnei i te whakarōpūtia hei parahi mata-mata. Ka whakamahia e tēnei pepa parahi he paninga whakarewa ki runga i te taha matte o te parahi, kātahi ka whakakorikoria ki te taumata e hiahiatia ana.
He māmā noa iho te whakamahinga o te maimoatanga mata i roto i ēnei rauemi parahi: ka hurihia te pepa konumohe mā roto i ngā kaukau electrolyte tāpiri ka pania he whakakikorua parahi tuarua, ā, muri iho ka pania he paparanga purapura ārai, ā, i te mutunga ka pania he paparanga kiriata ārai-whakakino.

Pepa parahi PCB

Ngā tukanga maimoatanga mata mō ngā pepa parahi. [Puna: Pytel, Steven G., et al. "Te tātari i ngā maimoatanga parahi me ngā pānga ki te horapa tohu." I te Huihuinga Hangarau me ngā Wāhanga Hiko 58 o te tau 2008, wh. 1144-1149. IEEE, 2008.]
Mā ēnei tukanga, ka whiwhi koe i tētahi rauemi ka taea te whakamahi ngāwari i roto i te tukanga hanga papa paerewa, me te iti noa o te tukatuka tāpiri.

Parahi Hurihia-Whakarewahia

Ka tukuna e ngā pepa parahi kua hurihia-whakamahanatia he pepa parahi mā roto i ētahi roera e rua, ka hurihia matao te pepa parahi ki te matotoru e hiahiatia ana. Ka rerekē te taratara o te pepa pepa ka puta mai i runga i ngā tawhā hurihuri (tere, pēhanga, me ētahi atu).

Ka tino maeneene te pepa hua, ā, ka kitea ngā rārangi i runga i te mata o te pepa parahi kua hurihia-whakamahanatia. Kei raro nei ngā whakaahua e whakaatu ana i te whakataurite i waenga i te pepa parahi kua whakanohoia ki te hiko me te pepa parahi kua hurihia-whakamahanatia.

Te whakataurite i te pepa parahi PCB

Te whakataurite i waenga i ngā pepa konutea kua whakanohoia ki te hiko me ngā pepa konutea kua hurihia-whakamahanahia.
Parahi iti-kōtaha
Ehara tēnei i te momo pepa parahi ka hangaia e koe mā te whakamahi i tētahi atu tukanga. Ko te parahi iti-kōtaha he parahi kua whakanohoia ki roto i te hiko, ka tukatukahia, ka whakarerekētia hoki mā te tukanga whakakorikori-iti hei whakarato i te taratara toharite tino iti me te taratara e ranea ana mō te piri ki te papa. Ko ngā tukanga mō te hanga i ēnei pepa parahi he mea motuhake. He maha ngā wā ka whakarōpūtia ēnei pepa hei taratara tino-iti (ULP), he taratara tino-iti (VLP), me te taratara-iti noa iho (LP, tata ki te 1 micron te taratara toharite).

Ngā tuhinga e pā ana：

He aha i whakamahia ai te pepa konutea parahi i roto i te hanga PCB?

Te Pepa Parahi e Whakamahia ana i roto i te Poari Arahiko Tānga