Indlela Yokuthintela Imingxunya EngenaCopper kwi-PCBs ezinemilinganiselo ephezulu: Iingcaciso Eziphambili Zokwenziwa kwePCB

Ukuqonda Ukubaluleka Komlinganiselo Wobungakanani Bemingxuma Kubukhulu Kwimveliso YePCB

Kwimveliso ye-PCB, ubungakanani bomngxuma ukuya kubukhulu bomlinganiselo, okwaziwa ngokuba yi umgangatho wento, yinto ebalulekileyo echaphazela umgangatho we-hole plating. Lo mlinganiselo ubalwa ngokwahlula ubukhulu be-PCB ngobubanzi bomngxuma, odla ngokubizwa ngokuba yi umlinganiselo wobude ukuya kububanzi (L/D).

Umzekelo, ukuba ubukhulu bePCB yi-1.60 mm kwaye ububanzi bomngxuma buyi-0.2 mm, umlinganiselo womngxuma yi-8:1. Umlinganiselo womngxuma ophantsi ubonisa iibhodi ezincinci ezinemingxuma emikhulu, nto leyo edla ngokuphumela kwiziphumo ezingcono zokubeka iplati ngenxa yokusasazwa kwee-ion ngokulinganayo ngexesha lenkqubo ye-electroplating.

Nangona kunjalo, ii-PCB ezinomlinganiselo ophezulu—ezo zinebhodi ezincinci kunye nemingxuma emincinci—zibangela imingeni ebalulekileyo ngexesha lenkqubo ye-electroplating, nto leyo ekhokelela kwiziphene ezifana imingxunya engenathusi (ekwaziwa ngokuba yi-"blind vias" okanye "voids") kunye ne-plating ekumgangatho ophantsi.

Yintoni Ebangela Imingxunya EngenaCopper kwi-PCBs ezine-High Aspect Ratio?

1. Amaqamza amancinci kunye nokuvaleka
   Kwindlela yesintu i-electroplating yangoku ngqo (DC) Inkqubo, isisombululo se-electroplating sinokubamba amaqamza amancinci emngxunyeni, sithintele ubhedu ukuba lungagqumi ngokulinganayo iindonga zemingxunya. La maqamza anokuthintela ukuhamba kobhedu, nto leyo ebangela ukuba iindawo ezingenayo i-copper eyaneleyo.
2. Ukucocwa Kakubi Ngexesha Langaphambi Konyango
   Ukuba i-PCB ayicocwanga kakuhle ngaphambi kokuba iplatwe, izinto ezingcolisayo okanye iintsalela zisenokuhlala ngaphakathi kwimingxunya. Oku kuthintela ubhedu ekunamatheleni eludongeni lwemingxunya, nto leyo edala iindawo ezingenanto kunye namabala abuthathaka.
3. Iziphene zokubhola
   Xa kugqojozwa imingxunya enomlinganiselo ophezulu, ukuba i-drill bit ayibukhali ngokwaneleyo, inokubangela iingxaki kumphezulu wangaphakathi womngxunya. Endaweni yokususa izinto kakuhle, i-drill bit isenokutsala kwaye ikrazule i-resin okanye i-fiberglass, ishiye iindawo ezirhabaxa. Oku kunokuthintela inkqubo yokubeka iplati kwaye kukhokelele ekunamatheleni kakuhle kobhedu.

Indlela iHigh Aspect Ratio echaphazela ngayo umgangatho wePlating

Ngokuba ii-PCB ezinomlinganiselo ophezulu (umz., 14:1, 16:1, okanye 20:1), inkqubo yokubeka iplati iba nzima ngakumbi. Isisombululo se-electroplating siyasokola ukufaka ubhedu ngokulinganayo, ingakumbi kwiindawo ezingaphakathi zemingxunya, nto leyo ebangela ukuba kubekho impembelelo yenja nethamboOku kuthetha ukuba umphezulu womngxuma uba banzi ngelixa inxalenye esezantsi ihlala ingaphantsi.

Ukongeza, umngxuma uxinano lwangoku lombane iyahluka kumphezulu womngxuma. Ekungeneni komngxuma, uxinano lwangoku luphezulu, ngelixa kwiindawo ezinzulu, luphantsi. Olu lwabiwo olungalinganiyo lukhokelela ekufakweni kakubi kweplati kwiindawo ezisezantsi zomngxuma, okufaka isandla ekwakhiweni imingxunya engenathusi.

Izisombululo Eziphambili Zokuthintela Imingxunya EngenaCopper kwi-PCBs Ezinomlinganiselo Ophezulu

Ukuze kuthintelwe ezi ngxaki, iifektri zanamhlanje zokwenza iiPCB zibhenela kwi ipleyiti yepulse iteknoloji, eyoyisa imida emininzi ye-DC electroplating yendabuko.

I-Pulse Plating yokufakwa kweCopper efanayo

I-pulse plating isebenzisa i-alternating current kunye ne-controlled pulses ukwandisa ukusebenza kakuhle kwe-copper deposition. Ngokungafaniyo ne-DC plating eqhelekileyo, i-pulse plating iphucula intshukumo ye-ion ngaphakathi komngxuma, ivumela ukuba i-copper deposition efanayo idlule emngxunyeni, kokubini emnyango nakwiindawo ezinzulu. Oku kubangela umgangatho ongcono we-plating kwaye kuthintela ukwakheka kwemingxuma engena-copper.

Ukongeza, i-pulse plating iqinisekisa ukuba ubhedu lubekwe ngokulinganayo ngaphandle kokwandisa ubukhulu bobhedu kumphezulu webhodi, kugcinwa ukuthembeka kweesekethe ezinoxinano oluphezulu, imigca emincinci, kunye nokungaguquguquki okuchanekileyo.

Amanye Amaqhinga

1. Iindlela eziphuculweyo zokubhola
   Ukusebenzisa iidrill ezichanekileyo kunokuqinisekisa ukuba imingxunya icocekile kwaye ithambile, kuphucule umgangatho womphezulu kwaye kuqinisekiswe ukuba inkqubo yokubeka iplati isebenza ngcono.
2. Unyango lwangaphambi konyango olulungisiweyo
   Ukucocwa nokunyangwa kakuhle kwemingxunya ye-PCB kunokuqinisekisa ukuba ithusi linamathelana ngcono. ukukrola iikhemikhali okanye ukucoca iplasma iindlela zobugcisa zinokususa naluphi na ungcoliseko kwaye ziphucule umgangatho wodonga lomngxuma, nto leyo ekhokelela kwiziphumo ezingcono zokubeka iplati.
3. Ukusetyenziswa kwezixhobo zokucwangcisa eziphambili
   Iifektri zePCB zanamhlanje zisebenzisa izixhobo ezenzelwe ngokukodwa ukuphatha iiPCB ezinomlinganiselo ophezulu. Oku kuquka iitanki ze-electroplating eziphuculweyo, iinkqubo zokucoca isisombululo eziphambili, kunye neendlela zokulawula umbane ezingcono.

Ungenza njani umngxuma kumfanekiso ongezantsi?

✅Isisombululo: I-VCP ye-pulsed kaRichfulljoy inokuthintela ukwenzeka rhoqo kwemingxuma emininzi kwi-DC plating. Ukusebenza kakuhle kwe-current density plating kuphezulu, kwaye phantsi kwenkqubo ye-pulse plating, ingenza ingaphakathi nangaphandle komngxuma kube kuhle kakhulu. Isiphumo sokusasazwa kwe-coating sinokufezekiswa, kwaye ubhedu olungaphezulu alunyuki, kwaye ubhedu olungaphezulu alunyuki, kwaye ujikelezo oluncinci kunye ne-impedance echanekileyo kakhulu zinokuqinisekiswa.

Ukuphucula Umgangatho kwi-High Aspect Rate PCB Manufacturing

Ukuveliswa kwePCB kwi-aspect ratio ephezulu, ukuthintela imingxunya engenathusi Kubalulekile ukugcina ukuthembeka kwemveliso kunye nokusebenza kwayo. Ngokuqonda imingeni enxulumene nokucwangcisa kwiindlela zoyilo ze-high aspect ratio kunye nokusebenzisa ubuchwepheshe obuphambili obufana ipleyiti yepulse, Abavelisi bePCB banokuqinisekisa umgangatho weplating ohambelanayo nothembekileyo.

Ukuba ubandakanyeka kwi Ukwenziwa kwePCB okanye ukusebenza no Iifektri zokwenza iiPCB, kubalulekile ukuba uzazi ezi ndlela kwaye usebenze nabavelisi abanobuchule bokuphatha ii-PCB ezinomlinganiselo ophezulu we-aspect ratio ngetekhnoloji yamva nje.