I-ENEPIG VS ENIG: Ukuhlola Umehluko

Ukukhethwa kokuphela kobuso akuyona nje imininingwane - kuyisici esibalulekile ekusebenzeni nasekuphileni kwe-PCB yakho. Namuhla kugqanyiswa abadlali ababili abavelele embonini: i-Electroless Nickel Electroless Palladium Immersion Gold (ENEPIG) eguquguqukayo futhi eqinile kanye ne-Electroless Nickel Immersion Gold ( ENIG ) yakudala ethembekile.

Yini i-ENEPIG

Lesi siphetho esingaphezulu siwugqinsi lwe-multilayer oluhlanganisa i-electroless nickel, i-electroless palladium, kanye nongqimba olungaphezulu lwegolide lokucwiliswa. Isendlalelo se-palladium sisebenza njengesithiyo ku-nickel, sivimbela ukugqwala futhi sithuthukise ukuqina kukonke kokuqeda.

Yini i-ENIG

I-ENIG, ngakolunye uhlangothi, iyinalethi enezingqimba ezimbili nayo eqala nge-nickel engena-electro kodwa ilandelwa ngokuqondile ungqimba lwegolide elicwiliswayo. Lokhu kuqedwa kwaziwa ngokuthengiswa kwayo okuhle kakhulu kanye nokubophezeleka kocingo.

I-ENEPIG VS ENIG: Ukuhlaziya Ngokuqhathanisa

1. Ukwakheka Kwezendlalelo

• I-ENEPIG: Lesi siphetho sinezingqimba ezintathu: isisekelo se-nickel, ungqimba lwe-palladium, kanye nongqimba olungaphezulu lwegolide. I-palladium isebenza njengesithiyo phakathi kwezingqimba ze-nickel nezegolide.
• I-ENIG: I-ENIG ihlanganisa izingqimba ezimbili phezu kwe-substrate yethusi, kodwa kuphela i-nickel negolide. Ayinaso isendlalelo se-palladium esikhona ku-ENEPIG.

2. Ukumelana Nokugqwala Nokwethenjelwa

• I-ENEPIG: Ungqimba lwe-palladium ku-ENEPIG luhlinzeka ngokuzivikela okwengeziwe ngokumelene nokugqwala, ikakhulukazi i-black pad syndrome, iphutha okuhlangatshezwane nalo ekuqedeni kwe-ENIG. Lokhu kwenza i-ENEPIG ithembeke kakhulu ekusebenziseni isikhathi eside.
• ENIG: Nakuba i-ENIG inikeza ukumelana nokugqwala okuhle, isengozini yokuthola isifo se-black pad ngenxa yokuxhumana okuqondile phakathi kwezingqimba ze-nickel nezegolide.

3. Ikhono Lokubopha Ngocingo

• I-ENEPIG: I-ENEPIG iguquguquka kakhulu, ilungele kokubili i-soldering ne-wire bonding. Lokhu kuyenza ilungele izinhlelo zokusebenza eziyinkimbinkimbi futhi ezinokwethenjelwa okuphezulu.
• I-ENIG: I-ENIG ivamise ukulungele ukusoda kodwa ayinconywa ukuthi ihlanganiswe ngocingo ngenxa yokuqina kwesendlalelo sayo segolide.

4. Ukucabangela Izindleko

• I-ENEPIG: Ukwengezwa kwe-palladium layer ku-ENEPIG kungayenza ibize kakhulu kune-ENIG. Nokho, ukuthembeka kwayo okuthuthukisiwe kungathethelela izindleko ezinhlelweni ezithembeke kakhulu.
• I-ENIG: I-ENIG ngokuvamile ayibizi kakhulu kune-ENEPIG futhi iyindlela engabizi kakhulu yezinhlelo zokusebenza ezijwayelekile ze-PCB.

5. Ukufaneleka Isicelo

• I-ENEPIG: Ifaneleka kakhulu kumabhodi ayinkimbinkimbi, anomthamo omkhulu lapho ukuthembeka kubaluleke kakhulu. Ukuhambisana kwayo nakho kokubili i-soldering kanye ne-wire bonding kuyenza ibe nezinto ezihlukahlukene ezinhlelweni ezihlukahlukene ze-elekthronikhi.
• I-ENIG: Ilungele izinhlelo zokusebenza ezijwayelekile ze-PCB lapho umhlangano ubandakanya ukuhlanganisa kuphela. Isetshenziswa kabanzi ngenxa ye-solderability yayo enhle kanye nendawo eyisicaba.

Onjiniyela bavame ukuqinisekisa lesi sihloko kanye nekhono lokuhlanganisa i-PCBA kanye ne-controlled impedance stackup lapho belungiselela i-PCB noma i-PCBA build ethembekile.

I-ENEPIG VS ENIG: Ukwenza Ukukhetha Okulungile

Ukukhetha phakathi kwe-ENEPIG ne-ENIG kuncike kakhulu ezidingweni ezithile zohlelo lwakho lokusebenza lwe-PCB. Uma udinga isiphetho esinikeza amandla akhethekile okubopha izintambo, ukumelana nokugqwala, nokuqina kwezinhlelo zokusebenza ezinokwethenjelwa okuphezulu, i-ENEPIG iyindlela okufanele uhambe ngayo. Kodwa-ke, kuzinhlelo zokusebenza ezijwayelekile lapho izindleko ziyisici esibalulekile, futhi ukuthengiselana kuwukukhathazeka okuyinhloko, i-ENIG iveza inketho engenzeka.

Khumbula, ukuphela kwendawo efanele akugcini nje ngokuthuthukisa ukusebenza kwe-PCB yakho kodwa futhi kunweba ubude bayo bempilo, iqinisekise ukwethembeka nokusebenza kahle ezinhlelweni zakho ze-elekthronikhi.