BGA  MCM BGA  Stacked




Product Overview
 
ASE offers stacked chip scale package (SCSP) and stacked quad flat package (SQFP) that combines BGA and leadframe package solutions onto each MCM type. Stacked CSP is the most popular package solution for flash & SRAM combination.

Another exclusive stacked die package offered by ASE is the Sandwich SCSP. This unique package combines up to 4 dice stacked on top of another with one of the dice acting as a spacer in between. For more information on how Sandwich SCSP can solve your packaging problems, contact ASE R&D.



Application
 
The integration of several semiconductor technologies into single MCM BGA package offers excellent advantages for many applications where size; weight; electrical performance and board density are important considerations.

Stacked CSP/QFP is suitable for chip applications in cellular phones, PDA and various handheld electronics. Sandwich SCSP is suitable for applications in memory cards and also handheld electronics.



Features
 
23x23 mm to 45x45 mm body size available
Full in-house design capability
Fine Pitch wirebond capability
Pb free process available
High speed performance
Good thermal performance
Different devices integrated onto one package
Cost effective solution for high density package
Eliminate the use of second level package
Good electrical performance
JEDEC standard compliant



Reliability
 
Package Level
MSL JEDEC level 3, 30°C/60% RH 192 hours
PCT 121°C/100% RH/2 atm 168 hours
TCT -65°C~150°C 1000 cycles
HAST 130°C/85%RH/33.5 PSIG 96 hours
HTST 150°C 1000 hours
 
Board Level
TCT 0~100°C, 2 CPH W/10 minute ramps and 5 minute duells respectively 3500 cycles no failure
THT 85°C/85% RH 1000 cycles no failed
Vibration Test 4 times of vibration for each axis No failed



Design Rule
 
 
1 Pkg size 27x27~45x45 23x23 15x15~19x19 15x15~19x19 mm
2 Molding cap thickness 1.17 0.97 0.85 0.54 mm
3 Die thickness 11~16 9~11 7~9 5~7 mil
4 Max. wire loop height 12 12 12 4 mil
 
Item Description Dimension unit
D Top die edge to bottom
die bond pad edge
15 min 15 min 15 min 15 min mil
G Distance of fingers
(Finger to die ddge)
min.25 min.25 max.160~240* max.160~240* mil
P Finger pitch for top wire min.300 min.300 min.300 min.300 um
 
(1mm=39.37mil; 1mil=25.4um)
Remark: 1. If "D" was less than 12 mils, the sandwich package design rule is applicable.
2. Side by side MCM BGA rule is applicable.
3. ASE standard rule for gold wire dia and wire length.
 
 
 
(1mm=39.37mil; 1mil=25.4um)
Remark: 1. ASE standard rule for gold wire dia. and wire length.
 
 
D3 Upper function die
E3 Non-conductive epoxy layer (QMI536)
D2 Middle3 Dummy Die
E2 Non-conductive epoxy (QMI536) layer
D1 Bottom function die
E1 Conductive epoxy (2100A) layer
H Wire loop height
T Mold cap thickness
 
Item Dimension Unit
Pkg size 15~19 23 27~45 mm
T 33.5 38 46 mil
D1 5~7 max. 10 max. 10 mil
E1 0.5~2 0.5~2 0.5~2 mil
D2 max. 6 max. 6 max. 10 mil
E2 0.5~2 0.5~ 0.5~2 mil
D3 5~7 max. 10 max. 10 mil
E3 0.5~2 0.5~2 0.5~2 mil
H max. 5 max. 6 max. 6 mil



Performance
 
Electrical Characterization (Contact ASE R&D for details.)
 
Thermal Characterization (Refer to PBGA.)



Standard Process/Materials
 



Package Offering
 
The alphabetical notation refers to: (All units are in mm.)
A Pkg overall thickness
A1 Stand-off
b Ball diameter
c Substrate thickness
e Ball pitch
D1 Width
E1 Length
 
MCM BGA
Body size Ball count A A1 b c e
D1 E1
23 23 120~484 2.23/2.33 0.5/0.6 0.6/0.75 0.56 1.0/1.27
27 27 208~676 2.23/2.33 0.5/0.6 0.6/0.75 0.56 1.0/1.27
31 31 272~696 2.23/2.33 0.5/0.6 0.6/0.75 0.56 1.0/1.27
35 35 313~1156 2.23/2.33 0.5/0.6 0.6/0.75 0.56 1.0/1.27
37.5 37.5 388~901 2.23/2.33 0.5/0.6 0.6/0.75 0.56 1.0/1.27
40 40 400~956 2.23/2.33 0.5/0.6 0.6/0.75 0.56 1.0/1.27
42.5 42.5 560~1125 2.23/2.33 0.5/0.6 0.6/0.75 0.56 1.0/1.27
45 45 529~1520 2.23/2.33 0.5/0.6 0.6/0.75 0.56 1.0/1.27



Packing & Shipping
 
Body size (mm) Row Column Total QTY Max. temp(°C) Vendor
23x23 5 12 60 150 PEAK
27x27 4 10 40 150 HS
31x31 3 9 27 150 SHINON
35x35 3 5 24 150 HS
37.5x37.5 3 7 21 150 CAMTE
40x40 3 7 21 150 PEAK
42.5x42.5 3 6 18 150 PEAK
45x45 2 6 12 150 PEAK



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