DC25_SLIDES_Track04_TheInfluenceofCopperCrystal_shen.pdf

1、Information Classification:GeneralWelcome to ConferenceJanuary 2830,2025Santa Clara Convention Center1ExpoJanuary 2930,2025 Information Classification:GeneralThe Influence of Copper Crystal Structure on Signal IntegritySpeaker Jaeyeol Park,(Nan Ya New Materials)Paper Author Chuansheng,Dayong Shen(By

2、tedance)Paper Author Changdong Gu(Zhejiang Huanergy)2Information Classification:GeneralImageSPEAKERSJaeyeol ParkRegional Director,NANYA NEW MATERIALSpaul.parkccl-|www.ccl-|he is the regional director of Nanya New Material Technology,with 20 years of experience in the PCB industry,starting with PCB t

3、echnical engineer and Technical marketing manager of PCB process equipment,and now focuses on material for advanced substrates.3Information Classification:GeneralIntroduction4T=D+C+R+LT:Transmission lossD:dielectric loss,C:conductor loss,R:radiation loss,L:and leakage loss PCB transmission loss is a

4、n important factor affecting high-speed signal transmission.Conductor loss accounts for an important part of the total transmission loss.Reducing conductor loss can decrease the total transimission loss.Information Classification:General In high-density interconnects,as the line width/spacing decrea

5、ses,the thickness or width of copper wire gradually approaches its grain size.According to the relationship between grain size and conductivity,the smaller the grain size,the greater the resistance.For thinner lines,the direct current loss of the conductor may become significant,which cannot be igno

6、red.DC loss of conductors is also related to the composition and crystal defects of the copper foils.Attention should be paid to the influence of the crystal structure of conductive copper foil materials on SIDC loss 5Journal of Materials Research and Technology 2023,26,1459R=L/Wt:resistivity；L:line