Electroplating thiab luam ntawv ntawm hluav taws xob cua sov raj nrog cov ntsiab lus protruding

Electroplating thiab luam ntawv ntawm hluav taws xob cua sov raj nrog cov ntsiab lus protruding

Txoj cai tseem muab rau ntau qhov kev zam. Solders siv rau cov servers, chaw cia khoom, thiab cov chaw tshwj xeeb hauv network tseem tuaj yeem muaj cov txhuas mus txog xyoo 2010. Tsis tas li ntawd, solder nrog cov ntsiab lus txhuas ntau tshaj 85 feem pua ​​​​tsis suav nrog cov cai no. Lub European Commission tseem tab tom pib qhov kev ntsuam xyuas rau ntau qhov kev zam, xws li cov hlau lead uas muaj cov khoom siv sib txuas uas siv los ntawm cov khoom siv flip nti ntim rau high-end PC processors. Feem ntau ntawm cov kev sib tshuam no yog ua los ntawm C4 cov khoom siv nrog cov ntsiab lus txhuas. Lub EU txoj cai txwv tsis pub muaj cov khoom phom sij xws li txhuas yog los hloov cov hlau lead ntau li ntau tau, thiab cov hlau lead tsuas yog siv tau thaum nws "tsim tsis tuaj yeem hloov tau". Lub Scope ntawm kev siv cov lus qhia yog qee zaum tsis meej meej. Piv txwv li, cov neeg siv khoom siv hluav taws xob tsis tuaj yeem siv cov hlau lead, thaum lub tsheb hluav taws xob tuaj yeem siv tau. Yog li, dab tsi txog xov tooj cua hauv tsheb? Tam sim no, lub xov tooj cua hauv tsheb tau tso cai kom muaj cov hmoov txhuas, tab sis tseem muaj qee qhov xwm txheej zoo sib xws uas yuav tsum tau txiav txim siab ntxiv.

Cov European Union txoj cai tsis muaj txhuas yuav cuam tshuam rau kev lag luam hluav taws xob thoob ntiaj teb, tsis yog vim kev lag luam thoob ntiaj teb ntawm cov saw hlau, tab sis kuj vim tias cov kev cai zoo sib xws tau pib muaj nyob hauv lwm lub tebchaws. Piv txwv li, Tuam Tshoj tau tshaj tawm txoj cai zoo sib xws txwv tsis pub cov khoom siv tib yam, thiab lub sijhawm kawg tau teem rau lub Xya Hli 1, 2006.

Txhawm rau kom ua tiav cov ntim khoom tsis muaj txhuas, cov neeg yuav tsum tau ua ntau yam kev tshawb fawb thiab cov txheej txheem kev soj ntsuam ntawm flip chip ntim, wafer qib ntim, SMT, thiab yoj soldering. Peb tau pib tshawb nrhiav cov ntaub ntawv tsim nyog thiab cov txheej txheem rau ntawm board flip nti thiab nti qib ntim tshuab.

Engraving printing los tsim protrusions

Nyob rau hauv cov txheej txheem npaj pob (Daim duab 1), nws yog ib qho tsim nyog los npog cov hlau hauv qab (UBM) ntawm lub pob nrog cov khoom siv vuam tshiab. Tom qab cov txheej txheem luam ntawv, reflow yuav tsum tau nqa tawm ntawm qhov kub ntawm 20 degree saum toj no lub melting point ntawm lub solder, ua raws li los ntawm kev ntxuav thiab pob tshuaj xyuas.

UBM yuav tsum phim tus tshiab solder thiab siv cov txheej txheem nickel plating. Kev ua wafer yog ua los ntawm cov khoom siv tshuaj lom neeg, ua raws li kev sib koom ua ke ntawm kev ntxuav, ua raws li cov txheej txheem xws li zincate kev kho mob, kev kho deg ua kom dej, nickel (5mm) deposition, thiab kub txheej loj hlob. Cov txheej txheem no tau tsim los ntawm kev koom tes nrog FraunhoferIZM thiab Technical University of Berlin. UBM siv cov txheej txheem npib tsib xee plating muaj kev ruaj ntseg zoo thiab cov txiaj ntsig siab, thiab tau siv dav.

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