PLCC SNPB20

Device Material Content
5555 NE Moore Ct.
Hillsboro OR 97124
(503) 268-8000
[email protected]
Package:
Total Device Weight
January, 2011
% of Total
Pkg. Wt.
Weight (g)
Die
0.46%
0.003
Mold
83.47%
0.584
D/A Epoxy
0.04%
0.08%
0.001
Lead Plating
0.68%
0.005
15.26%
with SnPb Plating
% of Total
Weight (g)
Pkg. Wt.
Substance
CAS #
Silicon chip
7440-21-3
Die size: 1.63 x 1.68 mm
73.20%
4.17%
4.17%
1.67%
0.25%
0.512
0.029
0.029
0.012
0.002
Silica Fused
Epoxy Resin
Phenol Resin
Epoxy Cresol Novolac
Carbon black
60676-86-0
9003-35-4
1333-86-4
Mold Compound Density between 1.7 and 2.1 grams/cc
75 to 95% Silica Fused (LSC uses 87.7% in our calculation)
2 to 8% Epoxy Resin (LSC uses 5% in our calculation).
3 to 8% Phenol Resin (LSC uses 5% in our calculation).
0 to 3% Epoxy Cresol Novolac (LSC uses 2% in our calculation).
0.1 to 0.5% Carbon black (LSC uses 0.3% in our calculation)
0.03%
0.01%
0.0002
0.0001
Silver (Ag)
other
7440-22-4
-
Die attach epoxy Density: 4 grams/cc
Silver content: 60-100% (LSC uses 80% in our calculation).
Gold (Au)
7440-57-5
1 wire per package lead; wire length 3 mm
Plating is 85% Sn, 15% Pb; thickness is 0.015mm
0.58%
0.10%
0.004
0.001
Tin (Sn)
Lead (Pb)
7440-31-5
7439-92-1
15.033%
0.191%
0.005%
0.021%
0.012%
0.105
0.0013
0.00003
0.00015
0.00009
Copper (Cu)
Iron (Fe)
Phosphorus (P)
Zinc (Zn)
Zirconium (Zr)
7440-50-8
7439-89-6
7723-14-0
7440-66-6
7440-67-7
0.107
Notes:
The values listed above are nominal values based on studies of representatives of this particular package type, and are believed to be as accurate as possible.
Constituent substances and proportions in epoxy materials are before curing.
The information provided above is representative of the package as of the date listed, and is subject to change at any time.
www.latticesemi.com
Notes / Assumptions:
0.0003
Wire
Leadframe
20 PLCC
0.70
Grams
Leadframe thickness is nominal (per Case Outline)
Cu (LSC uses 98.5% in our calculation)
0 to 2.35% Fe (LSC uses 1.25% in our calculation)
0 to 0.07% P (LSC uses 0.03% in our calculation)
0.12 to 0.15% Zn (LSC uses 0.14% in our calculation)
0 to 0.15% Zr (LSC uses 0.08% in our calculation)