Nyob rau xyoo 1970s, multilayer PCBs pib muaj kev txhim kho sai, tsis tu ncua mus rau qhov siab dua, qhov ceev dua, cov kab zoo dua thiab cov vias me me, txhim kho kev ntseeg tau, txo cov nqi, thiab kev tsim khoom tsis tu ncua.
Lawv cov kev hloov kho thev naus laus zis tau nce zuj zus los ntawm ib ntu ntawm ib qho - sab laug thiab ob sab - sab laug mus rau ntau lub rooj tsav xwm, thiab tom qab ntawd mus rau High-Density Interconnect (HDI) thiab Tsim -Up Multilayer (BUM) technologies. Kev tsim cov txheej txheem tam sim no encompass laser drilling, plasma etching, thiab yees duab- txhais los ntawm kev tsim, ua rau kev tsim cov micro-vias nrog diameters li ntawm 0.05 txog 0.15 mm. Niaj hnub nimno UV laser drilling tshuab tau ua tiav ntawm txoj kab uas hla me me li 25 μm. Txhua yam -Txheej Txheej Interconnect Via Qhov (ALIVH) thev naus laus zis tso cai rau kev tsim cov kev sib tshuam ntsug ntawm ob txheej. Cov txheej txheem tsim khoom tau hloov kho tas mus li-xws li kev siv cov txheej txheem pinless alignment (Mass Lam), lub tshuab nqus tsev lamination, thiab X-ray-coj drilling- txhawm rau txhim kho qhov kev sib dhos thiab lamination precision ntawm ntau txheej boards.
Niaj hnub nimno siab - txheej - suav PCBs tau hloov zuj zus mus rau hauv txoj hauv kev, ntau- cov txheej txheem sib txuas sib txuas uas muaj ntau ntau txheej, yog li paub txog peb qhov tiag tiag - lub voj voog hluav taws xob. Tam sim no kev tsim khoom muaj peev xwm txhawb nqa yam tsawg kawg nkaus ntawm txoj kab uas hla ntawm 0.1 hli thiab qhov tsawg kawg nkaus kab dav / qhov sib nrug ntawm 0.0762 hli. Txhawm rau ua kom tau raws li qhov xav tau ntawm siab- zaus thiab siab- daim ntawv thov ceev, cov khoom siv hluav taws xob tau nce mus rau ultra- qis- cov khoom poob, siv cov khoom xws li M6 thiab M8 qib siab- zaus / siab- nrawm tooj liab{{17} CCL (zoo li CCL), resins zoo li PPO thiab PTFE.
Los ntawm kev nqis peev ruaj khov hauv kev tshawb fawb thiab kev tsim kho, cov tuam txhab lag luam hauv tsev tau ua tiav qhov tseem ceeb hauv kev ua haujlwm siab ntawm - txheej - suav PCBs. Piv txwv li, Yangxuan Electronics (Dongguan) Co., Ltd. tau lees paub tias yog National High -Tech Enterprise hauv 2024; los ntawm 2025, lub tuam txhab tau sau 25 daim ntawv tso cai patents thiab ua tiav 16-txheej PCB- muaj cov tooj liab tuab ntawm 6 ooj ib txheej-tshwj xeeb yog tsim los rau cov khoom siv hluav taws xob hauv cov chaw loj AI cov ntaub ntawv.
