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PCB hukumar surface jiyya tsari - bambanci tsakanin nutsewa zinariya da plating zinariya

 

Akwai da dama matakai a kan surface na buga kewaye hukumar : tsirara PCB hukumar (babu surface jiyya), OSP, Hot Air leveling (gubar kuza, kai-free tin), plating zinariya, nutsewa zinariya da dai sauransu Wadannan ne mafi bayyane.

Bambanci tsakanin nutsewa zinariya da plating zinariya

Nutsewa zinariya ne da hanyar da sinadaran shaida. A sinadaran Layer aka kafa ta a sinadaran hadawan abu da iskar shaka-raguwa dauki. Kullum, da kauri ne in mun gwada lokacin farin ciki. Yana da wani irin sinadaran nickel-zinariya-zinariya Layer shaida hanya, da kuma iya cimma wani lokacin farin ciki zinariya Layer.

Gold plating amfani da manufa na electrolysis, wanda kuma ake kira electroplating. Mai sauran karfe surface jiyya da ake ma electroplated.
Plating Hard Gold surface jiyya PCB
In the actual product application, 90% of the gold pcb board is the immersed gold pcb board,because the poor solderability of the plated circuit board is his fatal flaw, and it is also the direct cause of many companies to give up the gold plating process!

Nutsewa zinariya aiwatar ajiye a farfajiya na buga kewaye allon tare da barga launi, mai kyau haske, m plating, da kuma kyau solderability na nickel zinariya plating. M shi za a iya raba hudu, saukarwa: pre-magani (mai kau, micro-etching, kunnawa, post-tsoma), nickel hazo, nauyi zinariya, post-magani (sharar gida da ruwa wanka, DI ruwa wanka, bushewa). Nutsewa zinariya kauri ne tsakanin 0.025-0.1um.

Gold ne amfani da surface jiyya na buga kewaye allon saboda ta high lantarki watsin, mai kyau hadawan abu da iskar shaka da juriya, da kuma dogon lifespan. An kullum amfani da key allon, zinariya yatsa PCB allon, da dai sauransu A bambancin da ke tsakanin zinariya-plated allon da zinariya-nutsa allon ne cewa zinariya plating da wuya. Gold (abrasion resistant), zinariya ne m zinariya (ba sa resistant).
nutsewa zinariya PCB hukumar
1. The crystal structure formed by Immersion Gold and Gold Plating is different. Immersion Gold is much thicker than Gold Plating. Immersion Gold will be golden yellow and yellower than Gold Plating (this is the method of distinguishing between gold plating and heavy gold plating.) a) Gold plating will be slightly white (nickel color).

2. A crystal tsarin kafa ta nutsewa zinariya da zinariya plating ne daban-daban. Nutsewa zinariya da sauki ga Weld fiye da zinariya plating kuma ba zai haifar da mummunan waldi. Da danniya na immerison zinariya jirgin ne sauki ga iko, kuma shi ne mafi moriya ga bonding tsari ga bonded kayayyakin. A lokaci guda, saboda zinariya ne mafi zinariya-plated fiye da zinariya, da zinariya-fingered zinariya yatsa ba wearable (shortcomings na zinariya farantin).

3. Akwai kawai nickel-zinariya a kan kushin a cikin zinariya-nutsa PCB hukumar .An siginar watsa a cikin fata sakamako ba zai tasiri a sigina a cikin jan Layer.

4. nutsewa zinariya ne mafi m fiye da zinariya plating crystal tsarin, ba sauki, don samar da hadawan abu da iskar shaka.

5. Tare da kara bukatar for buga kewaye hukumaraiki daidaito, line nisa, jerawa ya kai 0.1mm kasa. Gold plating ne yiwuwa ga zinariya short kewaye. A zinariya farantin kawai yana nickel da zinariya a kan kushin, don haka shi ne, ba sauki don a samar da zinariya short kewaye.

6. The nutsewa zinariya kawai yana nickel zinariya a kan kushin, don haka da solder tsayayya a kan layi ne mafi daidaita bonded zuwa jan Layer. The aikin ba zai shafi jerawa lokacin yin ramuwa.

7. Domin da hakan bukatun na PCB jirgin, flatness bukatun su ne mafi alhẽri, general amfani da nutsewa zinariya , nutsewa zinariya kullum ba ya bayyana bayan taron da baki mat sabon abu. A flatness da sabis rai na zinariya farantin ne mafi alhẽri daga abin da na zinariya farantin.

Saboda haka At yanzu mafi masana'antu amfani da nutsewa zinariya tsari, don samar da zinariya PCB hukumar .Amma, da zinariya-nutsa tsari ne ya fi tsada fiye da zinariya-plating tsari (more zinariya abun ciki), don haka har yanzu akwai babban adadin low-saka farashi kayayyakin ta amfani da zinariya-plating matakai (kamar ramut bangarori, abun wasa allon).

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