1、e fY W JY - Y 9? d6e e-FBEGSBNF d+ ZY*$e $IJQ“ $IJQ#$)*1$)*11$#*OUFSDPOOFDUJPO fY fY *$ za.Y Nx5 Q*$ d6*$ z s *$IJQHumidity_ESDHeatTransfer zf z 4JOHMF$IJQ1BDLBHF 4$1 z .VMUJDIJQ .PEVMF .$. W ( e b 1JO5ISPVHI)PMF 15) & 9 4VSGBDF.PVOU5FDIOPMPHZ 4.5e|PCB|(a) PTH(b) SMDPCB W ( )FSNFUJD1BDLBHF _ V1HZ& Z
2、 ? CBTF V SBNF D Z zCBTF$BWJUZ 9 Y Z z V _ j -JE eee*$IJQ WV ? V ? z z zz C Cz 9z 9_ee Q Qe e ( )FSNFUJD1BDLBHF _ V1H W 1MBTUJD1BDLBHF _ V1HZ& Z z 9VY1BEj Z z_ V %| Zz eee*$IJQ W 1MBTUJD1BDLBHF _ V1H z 9z 9 e e z z _ee_ W 1MBTUJD1BDLBHF _ “ ?Z& Z z 9#5 ?Y1BEj Z z_8 %| Zz e “e W 1MBTUJD1BDLBHF _ “ ?
3、z 9z 9 _e e z z _ “ “e ye y z (Chip Scale) W Package Perimeter 1.2 x Die Perimeter Package Area 1.5 x Die AreaPackageCSP is only a Definition, Not a Technology!CHIP z (Chip Scale)YFlip Chip(On Board)SizeWeightHigh I/O CountElectrical PerformanceSurface MountPackageStandardsTest & Burn-InReworkableAl
4、pha ProtectedExisting InfrastructureMechanical ProtectionCSP z (Chip Scale)Yu LFBGAChipOver Molded Au WireSolder Ball Cu TracesLaminatesubstrateVia TFBGAOver Molded Au WireSolder BallCu TracesLaminate substrate z (Chip Scale)YuSolder BallPolyimide FilmIntegrated CircuitCompliant LeadCompliant Materi
5、al BGA (TESSERA Pattern) z (Chip Scale)Yu Flip ChipSmallest Possible Package Highest package density Shrink of component dimension Used in portable electronics, medical devices, etc.Most Efficient Use of SiliconPractical Assembly of extremely High I/Os Low inductance Highest processor speeds Utilize
6、d in latest generation of processors Direct thermal pathHighest PerformanceICSubstrateSolderSoldering BumpSoldering Ball z (Chip Scale)Yu SNAP CSPScore Line Bottom SideScore Line High Electrical Performance High 2nd Level ReliabilityPKG CTE close to PWB Fine Design Rule & Flexible Assembly Easiness Low Dielectric Constant (Low ) Low Resistance (Low R) z (Chip Scale)Yu Stack Die Development (Same Die Size) Feature Exchange Wire Bonding LoopMode From Bump Bonding to New Loop Mode “M” Loop andthe Loop High Could Control at41mil. Bump BondElastomerGold WireSubstrateSolder BallCompoundDie 2Die 1