Yuav Ua Li Cas Tiv Thaiv Cov Qhov Tsis Muaj Tooj Liab Hauv Cov PCBs Loj: Cov Kev Nkag Siab Tseem Ceeb Rau Kev Tsim PCB

Nkag Siab Txog Qhov Tseem Ceeb Ntawm Qhov Loj Thiab Qhov Thickness Ratio Hauv PCB Manufacturing

Hauv kev tsim khoom PCB, cov khoom siv Qhov loj ntawm qhov thiab qhov tuab piv, kuj hu ua qhov sib piv ntawm cov duab, yog ib qho tseem ceeb uas cuam tshuam rau qhov zoo ntawm qhov plating. Qhov piv no yog xam los ntawm kev faib PCB lub thickness los ntawm lub qhov txoj kab uas hla, feem ntau hu ua qhov ntev-rau-txoj kab uas hla piv (L/D).

Piv txwv li, yog tias PCB tuab yog 1.60 hli thiab lub qhov loj yog 0.2 hli, qhov sib piv ntawm cov ces kaum yog 8:1. Cov sib piv qis dua qhia txog cov laug cam nyias dua nrog cov qhov loj dua, uas feem ntau ua rau cov txiaj ntsig plating zoo dua vim muaj kev faib tawm ion ntau dua thaum lub sijhawm electroplating.

Txawm li cas los xij, PCBs qhov sib piv siab—cov uas muaj cov laug cam nyias thiab cov qhov me me—ua rau muaj teeb meem loj thaum lub sijhawm electroplating, ua rau muaj qhov tsis zoo xws li qhov tsis muaj tooj liab (tseem hu ua "dig muag vias" lossis "voids") thiab cov plating tsis zoo.

Dab tsi ua rau muaj qhov tsis muaj tooj liab hauv cov PCBs uas muaj qhov sib piv siab?

1. Micro-Bubbles thiab Blockage
   Hauv cov kev lig kev cai kev siv hluav taws xob ncaj qha (DC) electroplating cov txheej txheem electroplating, cov tshuaj electroplating yuav ntes tau cov npuas me me hauv qhov, tiv thaiv cov tooj liab los ntawm kev sib npaug ntawm cov phab ntsa qhov. Cov npuas no tuaj yeem thaiv cov dej ntws ntawm tooj liab, ua rau thaj chaw uas tsis muaj cov tooj liab txaus.
2. Kev Ntxuav Tsis Zoo Thaum Lub Sijhawm Ua Ntej Kho Mob
   Yog tias PCB tsis tau ntxuav kom huv ua ntej plating, tej zaum yuav muaj cov khoom tsis huv lossis cov seem nyob hauv cov qhov. Qhov no tiv thaiv cov tooj liab kom tsis txhob lo rau ntawm phab ntsa qhov, ua rau muaj qhov khoob thiab qhov tsis muaj zog.
3. Cov Kev Tsis Zoo ntawm Kev Tho
   Thaum tho qhov uas muaj qhov sib piv siab, yog tias lub ntsis tho tsis ntse txaus, nws tuaj yeem ua rau muaj teeb meem nrog qhov sab hauv ntawm lub qhov. Es tsis txhob tshem cov khoom kom du, lub ntsis tho yuav rub thiab rhuav cov resin lossis fiberglass, ua rau cov nplaim ntxhib. Qhov no tuaj yeem cuam tshuam cov txheej txheem plating thiab ua rau tooj liab tsis lo.

Qhov Sib Piv Siab Cuam Tshuam Li Cas Rau Qhov Zoo ntawm Plating

Rau PCBs qhov sib piv siab (piv txwv li, 14: 1, 16: 1, lossis txawm tias 20: 1), cov txheej txheem plating ua rau nyuaj dua. Cov tshuaj electroplating nyuaj rau tso tooj liab sib npaug, tshwj xeeb tshaj yog nyob rau hauv thaj chaw sab hauv ntawm cov qhov, uas ua rau muaj cov nyhuv ntawm pob txha devQhov no txhais tau tias sab saum toj ntawm lub qhov yuav dav dua thaum qhov qis dua tseem tsis tau plated.

Tsis tas li ntawd, lub qhov qhov ceev ntawm hluav taws xob tam sim no txawv ntawm qhov chaw ntawm lub qhov. Ntawm qhov nkag ntawm lub qhov, qhov ceev tam sim no siab dua, thaum nyob rau hauv qhov tob dua, nws qis dua. Qhov kev faib tawm tsis sib xws no ua rau cov plating tsis zoo hauv qhov qis dua ntawm lub qhov, ua rau muaj kev tsim ntawm qhov tsis muaj tooj liab.

Cov Kev Daws Teeb Meem Siab Tshaj Plaws Los Tiv Thaiv Cov Qhov Tsis Muaj Tooj Liab Hauv Cov PCBs Loj

Yuav kom tsis txhob muaj teeb meem no, cov chaw tsim khoom PCB niaj hnub no tab tom tig mus rau plating pulse thev naus laus zis, uas kov yeej ntau yam kev txwv ntawm cov qauv DC electroplating.

Pulse Plating rau Uniform Copper Deposition

Kev siv pulse plating siv cov hluav taws xob hloov pauv nrog cov pulses tswj tau los ua kom cov tooj liab tso tau zoo dua. Tsis zoo li cov DC plating ib txwm muaj, pulse plating ua rau cov ion txav mus los hauv qhov, ua rau muaj cov tooj liab tso tau zoo dua thoob plaws qhov, ob qho tib si ntawm qhov nkag thiab thaj chaw tob dua. Qhov no ua rau cov plating zoo dua thiab zam kev tsim cov qhov tsis muaj tooj liab.

Tsis tas li ntawd xwb, kev plating pulse ua kom ntseeg tau tias tooj liab tau tso rau hauv qhov sib npaug yam tsis muaj kev nce qhov tuab ntawm tooj liab ntawm qhov chaw ntawm lub rooj tsavxwm, tswj kev ncaj ncees ntawm cov voj voog siab, cov kab zoo, thiab kev cuam tshuam meej.

Lwm Cov Tswv Yim

1. Cov Txuj Ci Drilling Zoo Dua
   Siv cov laum uas muaj qhov tseeb siab tuaj yeem ua kom cov qhov du thiab huv dua, txhim kho qhov zoo ntawm qhov chaw thiab ua kom cov txheej txheem plating ua haujlwm tau zoo dua.
2. Kev Kho Mob Ua Ntej Zoo Tshaj Plaws
   Kev ntxuav thiab kho cov qhov PCB kom huv si tuaj yeem ua kom muaj kev nplaum tooj liab zoo dua. Siv kev siv tshuaj lom neeg etching los yog kev ntxuav plasma cov txheej txheem tuaj yeem tshem tawm cov kuab paug thiab txhim kho qhov zoo ntawm phab ntsa qhov, ua rau muaj txiaj ntsig zoo dua.
3. Siv Cov Khoom Siv Plating Siab Tshaj Plaws
   Cov chaw tsim khoom siv PCB niaj hnub no siv cov khoom siv uas tsim tshwj xeeb los tswj cov PCBs uas muaj qhov sib piv siab. Qhov no suav nrog cov thoob dej electroplating zoo dua, cov tshuab lim dej zoo dua, thiab cov txheej txheem tswj hluav taws xob zoo dua.

Yuav ua li cas thiaj ua tau lub qhov hauv daim duab hauv qab no?

✅Kev daws teeb meem: Richfulljoy's pulsed VCP tuaj yeem zam qhov tshwm sim ntau dhau ntawm cov qhov thiab qhov hauv DC plating. Kev ua haujlwm siab tam sim no yog siab, thiab nyob rau hauv lub tshuab pulse plating, nws tuaj yeem ua rau sab hauv thiab sab nraud ntawm lub qhov zoo heev. Cov nyhuv faib txheej tuaj yeem ua tiav, thiab cov tooj liab saum npoo tsis nce, thiab cov tooj liab saum npoo tsis nce, thiab lub voj voog nyias thiab impedance siab tuaj yeem lav.

Txhim Kho Qhov Zoo Hauv Kev Tsim Khoom PCB High Aspect Ratio

Hauv kev tsim khoom PCB uas muaj qhov sib piv siab, tiv thaiv qhov tsis muaj tooj liab yog qhov tseem ceeb rau kev tswj hwm cov khoom kom zoo thiab kev ua tau zoo. Los ntawm kev nkag siab txog cov teeb meem cuam tshuam nrog plating hauv cov qauv tsim siab thiab kev siv cov thev naus laus zis siab heev xws li plating pulse, Cov chaw tsim khoom PCB tuaj yeem ua kom ntseeg tau tias cov plating zoo sib xws thiab txhim khu kev qha.

Yog tias koj koom nrog hauv Kev tsim PCB los yog ua haujlwm nrog Cov chaw tsim khoom PCB, nws yog ib qho tseem ceeb kom paub txog cov txheej txheem no thiab ua haujlwm nrog cov chaw tsim khoom uas muaj kev txawj ntse los tswj cov PCBs siab nrog cov thev naus laus zis tshiab.