PCB multilayer compaction yog txheej txheem ua ntu zus. Qhov no txhais tau hais tias lub hauv paus ntawm txheej txheej yuav yog ib daim ntawm tooj liab ntawv ci nrog ib txheej ntawm prepreg nteg rau saum. Tus naj npawb ntawm cov khaubncaws sab nraud povtseg ntawm prepreg sib txawv raws li kev ua haujlwm. Tsis tas li ntawd, lub hauv paus tseem ceeb yog tso rau ntawm lub prepreg bil ...