Micro Crystal
Low Power Clock Oscillator 32.768 kHz
OV-7605-C8
June 2017
12/20
Rev. 1.0
5. MATERIAL COMPOSITION DECLARATION & ENVIRONMENTAL INFORMATION
HOMOGENOUS MATERIAL COMPOSITION DECLARATION
5.1.
Homogenous material information according to IPC-1752 standard
Material Composition OV-7605-C8:
No.
Item
Component
Name
Sub Item
Material
Name
Material
Weight
Substance
Element
CAS
Number
Comment
(mg)
(%)
1
Resonator
Quartz Crystal
0.22
100%
SiO
2
14808-60-7
2
Electrodes
Cr+Au
0.005
6%
Cr
Cr:
7440-47-3
94%
Au
Au:
7440-57-5
3
Housing
Ceramic
3.24
100%
Al
2
O
3
1344-28-1
4
Lid
Ceramic
1.95
98.5%
Al
2
O
3
1344-28-1
Ceramic Lid
Ni-plating
1.0%
Ni
Ni:
7440-02-0
Nickel plating
Au-plating
0.5%
Au
Au:
7440-57-5
Gold plating
5
Seal
Solder Preform
0.18
80%
Au80 / Sn20
Au:
7440-57-5
20%
Sn:
7440-31-5
6
Terminations
Internal and extrenal
terminals
0.30
80%
W
W:
7440-33-7
Tungsten
15%
Ni
Ni:
7440-02-0
Nickel plating
5%
Au 0.5 micron
Au:
7440-57-5
Gold plating
7
Resonator
attach
Gold bumps
0.012
100%
Au
7440-57-5
8
CMOS IC
Silicon
0.088
98%
Si
Si:
7440-21-3
Die pad plating
2%
Al
Al:
7429-90-5
9
Die attach
Gold bumps
0.018
100%
Au
Au:
7440-57-5
Unit weight
6.01
4
5
1
2
3
6
7
(Symbolic drawing)
8
9
