Kev ntim khoom siv wafer degree (FOWLP) hauv kev lag luam semiconductor paub tias nws pheej yig, tab sis nws tsis yog tsis muaj nws qhov kev cov nyom. Ib qho teeb meem tseem ceeb uas ntsib yog warp thiab bit pib thaum lub sijhawm molding. warp tuaj yeem ua rau cov tshuaj molding shrinkage thiab mismatch hauv coefficient ntawm thermal expansion, thaum pib tshwm sim vim muaj cov khoom sau ntau hauv cov khoom siv syrupy molding. Txawm li cas los xij, nrog kev pab los ntawmAI uas tsis pom, kev daws teeb meem tab tom raug tshawb fawb kom tau txais qhov zoo dua ntawm cov teeb meem no.
DELO, ib lub tuam txhab ua lag luam hauv kev lag luam, ua qhov kev tshawb fawb txog kev ua tau los daws cov teeb meem no los ntawm kev siv cov khoom siv nplaum uas tsis muaj viscosity thiab ultraviolet hardening. Los ntawm kev sib piv qhov warpage ntawm cov khoom sib txawv, nws pom tias ultraviolet hardening txo qhov warp thaum lub sijhawm txias tom qab molding. Kev siv cov khoom siv ultraviolet hardening tsis yog tsuas yog txo qhov xav tau filler tab sis kuj txo qhov viscosity thiab Young's modulus, thaum kawg txo qhov pib. Qhov kev txhawb nqa hauv thev naus laus zis no qhia txog lub peev xwm rau cov khoom tsim cov khoom ua tus thawj coj kiv cua tawm wafer degree ntim nrog qhov tsawg kawg nkaus warpage thiab pib ntsis.
Zuag qhia tag nrho, kev tshawb fawb qhia txog qhov zoo ntawm kev siv ultraviolet hardening hauv cov txheej txheem molding loj, muab kev daws teeb meem rau qhov teeb meem uas ntsib hauv kev ntim khoom wafer-degree. Nrog rau lub peev xwm los txo qhov warpage thiab pwm hloov pauv, thaum tseem txo cov yeeb yaj kiab kho kom zoo dua lub sijhawm hardening thiab kev siv zog, tus xibfwb ultraviolet hardening yuav yog ib txoj hauv kev cog lus hauv kev lag luam semiconductor. Txawm hais tias qhov sib txawv ntawm cov coefficient thermal expansion ntawm cov khoom siv, kev siv ultraviolet hardening yog qhov kev xaiv ua tau zoo dua rau kev ua haujlwm zoo dua thiab zoo ntawm cov ntim khoom wafer.
Lub sijhawm tshaj tawm: Lub Kaum Hli-28-2024