*SELENIGHT ASN-3P

(Solution containing phosphite) 200 ml/l

Anode Nickel (>99.9%)

Current density 10 A/dm

²

Bath temperature 60±1℃

Bath pH 4.0±0.3

Agitation Stirrer (300rpm) and cathode rocker (6.5m/min)

Table 5-1-4 Gold plating bath composition and operating conditions.

* JPC Co. Ltd.: OROBRIGHT HS-5 (Recommend concentration)

Fig.5-1-3 Soldering re-flow profile

Composition Gold plating bath condition

KAu(CN)

2

12.5 g/l

CoSO

4

･7H

2

O 400 ppm

Additives *12.5 ml/l

Anode Pt-Ti (Insoluble)

Current density 3 A/dm

²

Bath temperature 50±1℃

Bath pH 4.0±0.3

Agitation

(i) Ni under plating: Material conveyance,

and Jet stream of plating solution (ii) Ni-P under plating: Stirrer (300rpm)

and cathode rocker (6.5m/min)

0 50 100 150 200 250 300

0 50 100 150 200 250 300 350 400 450

Time (s)

Temperature(℃)

Peak temp.: 250℃

Pre-heat: 150 ～ 190 ℃ , 90 s

Fig.5-1-4 Mating resistance measurement tester

Table 5-1-5 Test procedure of mixed gas flow test for S-ATA connector

Test procedure Specifications

Mating －

↓

Initial Mating resistance (>30 m

↓

Insertion and extraction 50 times

↓

After the insertion and extraction Mating resistance (>30 m

↓

Mixed gas flow test (non-mating) EIA-364-65A Class 2A Time: 168 hours

↓

After the mixed gas flow test Mating resistance (>45 m

↓

Mixed gas flow test (mating) EIA-364-65A Class 2A Time: 168 hours

↓

After the mixed gas flow test Mating resistance (>45 m

↓

Insertion and extraction 3 times

↓

After the insertion and extraction Mating resistance (>45 m

PC

PC monitor m-ohm meter

Sample (connector)

Tester

Fig.5-1-5 Result of sealing (soluble) /Au (0.8m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

Fig.5-1-6 Mating resistance measurement results of sealing (soluble)/Au (0.8m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

0 10 20 30 40 50

Initial

1 Insertion and extraction (50 times)

Mixed gas flow test (Non-mating)

Mixed gas flow test (Mating)

Insertion and extraction

(3 times)

Matingresistance(m)

OK OK NG

NG

NG

0.5mm

Fig.5-1-7 Result of sealing (soluble) /Au (0.8m)/Ni-P/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

Fig.5-1-8 Mating resistance measurement results of sealing (soluble)/Au (0.8m)/Ni-P/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

0 10 20 30 40 50

1

Matingresistance(m)

Initial

Insertion and extraction (50 times)

Mixed gas flow test (Non-mating)

Mixed gas flow test (Mating)

Insertion and extraction

(3 times)

OK OK NG

NG NG

0.5mm

(a) Corrosion diameter: about 50m

(b) Corrosion diameter: about 100m

(c) Corrosion diameter: >200m

Fig.5-1-9 SEM images of Au/Ni/Brass samples after corrosion resistance test.

Fig.5-1-10 EPMA analysis results of Au/Ni/Brass samples after corrosion resistance test.

(Corrosion diameter: about 50m) SEM

Strong Weak

Au L

Cu K

O K Cl K

Ni K

S K

Zn K

Peak level

Fig.5-1-11 EPMA analysis results of Au/Ni/Brass samples after corrosion resistance test.

(Corrosion diameter: about 100m) SEM

Strong Weak

Au L

Cu K

O K Cl K

Ni K

S K

Zn K

Peak level

Fig.5-1-12 EPMA analysis results of Au/Ni/Brass samples after corrosion resistance test.

(Corrosion diameter: >200m)

Au L Ni K

Cu K Zn K S K

Strong Weak

O K Cl K

Peak level

SEM

(a) Corrosion diameter: about 50m

(b) Corrosion diameter: about 100m

(c) Corrosion diameter: >200m

Fig.5-1-13 SEM images of Au/Ni-P/Brass samples after corrosion resistance test.

Fig.5-1-14 EPMA analysis results of Au/Ni-P/Brass samples after corrosion resistance test.

(Corrosion diameter: about 50m)

Zn K

Cl K

Ni K

Au L

O K

Cu K S K

SEM

Strong

Weak Peak level

Fig.5-1-15 EPMA analysis results of Au/Ni-P/Brass samples after corrosion resistance test.

Zn K

Cl K

Ni K

Au L

O K

Cu K S K

SEM

Strong

Weak Peak level

Fig.5-1-16 EPMA analysis results of Au/Ni-P/Brass samples after corrosion resistance test.

(Corrosion diameter: > 200m)

Zn K

Cl K

Ni K

Au L

O K

Cu K S K

SEM

Strong

Weak Peak level

Table 5-1-6 Measurement conditions of ion-chromatography. (DIONEX: ICS-2100)

Items Analysis conditions

Separation column Ion Pac AS-19 (Used to anion)

Guard column Ion Pac AG-19

Eluent KOH (Used to eluent generator) Flowing fluid velocity 1.0 ml/min

Gradient 20 mM (0～20min.)

50 mM (20～30min.)

Suppressor ASRS

(External mode, current value 124 mA)

Detector Conductance detector

Sample infusion volume 25 L

Column temperature 30 degree

Fig.5-1-17 Ion-chromatography analysis results of the ion generated by four mixed gas flow

-10

0 10 20 30 40

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30

SO

4

2-NO

3

-Cl

-Unknown

Conductivity(S/cm)

Time (s)

Fig. 5-2-1 Results of corrosion resistance test for alkane thiol treatment (After four mixed gas flow test)

(a) Before re-flow (b) After re-flow

Fig.5-2-2 Influence of heat history (re-flow) on corrosion resistance.

(After three mixed gas flow test) Corrosion

0.5mm

1.0mm 1.0mm

Table 5-2-1 Reel to reel plating process

* ↓ : Ion-exchanged water rinsing (1-10S/cm)

** R.T.: Room Temperature

Process Condition

Material Brass

↓

Alkaline electrolytic degreasing 2Na

2

O･SiO

2

･xH

2

O 50g/l (55℃,10A/dm

²

, 30sec)

*↓

Acid activating 10vol% HCl (**R.T., 10sec)

*↓

Ni electroplating Sulfuric acid bath (Thickness: about 2.0m)

*↓

Au electroplating (Au-Co hard gold plating)

Cyanide bath

(Thickness: 0.1, 0.2, 0.4 and 0.8m)

*↓

Drying Oven

*↓

Fluorinated oil treatment (PFPE)

1, 3, 5 and 7 wt% 1 ～ 3 sec

(natural dry)

Table 5-2-2 Nickel plating bath composition and operating conditions.

* Meltex Co. Ltd.: Nikal PC-3 (Recommend concentration)

Table 5-2-3 Gold plating bath composition and operating conditions.

* JPC Co. Ltd.: OROBRIGHT HS-5 (Recommend concentration) Composition Nickel plating bath condition

( Watt bath)

NiSO

4

･7H

2

O 340 g/l

NiCl

2

･ 6H

2

O 45 g/l

H

3

BO

3

45 g/l

Additives *30 ml/l

Anode Nickel (>99.9%)

Current density 10 A/dm

²

Bath temperature 50±1℃

Bath pH 4.0±0.3

Agitation Material conveyance, and Jet stream of plating solution

Composition Gold plating bath condition

KAu(CN)

2

12.5 g/l

CoSO

4

･7H

2

O 400 ppm

Additives *12.5 ml/l

Anode Pt-Ti (Insoluble)

Current density 3 A/dm

²

Bath temperature 50±1℃

Bath pH 4.0±0.3

Agitation Material conveyance,

and Jet stream of plating solution

Fig.5-2-3 Result of PFPE-oil (7wt %) /Au (0.8m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

Fig.5-2-4 Mating resistance measurement results of PFPE-oil (7wt %) /Au (0.8m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

0 10 20 30 40 50

Initial

Insertion and extraction (50 times)

Mixed gas flow test (Non-mating)

Mixed gas flow test (Mating)

Insertion and extraction

(3 times)

Matingresistance(m)

OK OK OK OK OK

Non-Corrosion

0.5mm

Fig.5-2-5 Result of PFPE-oil (7wt %) /Au (0.4m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

Fig.5-2-6 Mating resistance measurement results of PFPE-oil (7wt %) /Au (0.4m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

0 10 20 30 40 50

Matingresistance(m)

Initial

Insertion and extraction (50 times)

Mixed gas flow test (Non-mating)

Mixed gas flow test (Mating)

Insertion and extraction

(3 times)

OK OK OK OK OK

Non-Corrosion

0.5mm

Fig.5-2-7 Result of PFPE-oil (7wt %) /Au (0.2m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

Fig.5-2-8 Mating resistance measurement results of PFPE-oil (7wt %) /Au (0.2m)/Ni/Brass

0

10 20 30 40 50

Initial

Insertion and extraction (50 times)

Mixed gas flow test (Non-mating)

Mixed gas flow test (Mating)

Insertion and extraction

(3 times)

Matingresistance(m)

OK OK OK OK OK

Non-Corrosion

0.5mm

Fig.5-2-9 Result of PFPE-oil (7wt %) /Au (0.1m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

Fig.5-2-10 Mating resistance measurement results of PFPE-oil (7wt %) /Au (0.1m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

0 10 20 30 40 50

Initial

Insertion and extraction (50 times)

Mixed gas flow test (Non-mating)

Mixed gas flow test (Mating)

Insertion and extraction

(3 times)

Matingresistance(m)

OK OK OK OK OK

Non-Corrosion

0.5mm

Fig.5-2-11 Deposit of PFPE oil dependence of PFPE oil concentration in HFE.

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5

0 5 10 15 20 25

Fluorinated oil concentration (wt %)

DepositofPFPEoil(mg/cm2 )

Fig.5-2-12 Result of PFPE-oil (1wt%) /Au (0.4m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

Fig.5-2-13 Mating resistance measurement results of PFPE-oil (1wt%) /Au (0.4m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

0 10 20 30 40 50

Initial

Insertion and extraction (50 times)

Mixed gas flow test (Non-mating)

Mixed gas flow test (Mating)

Insertion and extraction

(3 times)

Matingresistance(m)

OK OK OK OK OK

Stain-type corrosion

Corrosion

0.5mm

Fig.5-2-14 Result of PFPE-oil (3wt%) /Au (0.4m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

Fig.5-2-15 Mating resistance measurement results of PFPE-oil (3wt%) /Au (0.4m)/Ni/Brass Non-Corrosion

0.5mm

0 10 20 30 40 50

Initial

Insertion and extraction (50 times)

Mixed gas flow test (Non-mating)

Mixed gas flow test (Mating)

Insertion and extraction

(3 times)

Matingresistance(m)

OK OK OK OK OK

Fig.5-2-16 Result of PFPE-oil (5wt%) /Au (0.4m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

Fig.5-2-17 Mating resistance measurement results of PFPE-oil (5wt%) /Au (0.4m)/Ni/Brass samples after four mixed gas flow corrosion resistance test by S-ATA standard.

Non-Corrosion

0.5mm

0 10 20 30 40 50

Initial

Insertion and extraction (50 times)

Mixed gas flow test (Non-mating)

Mixed gas flow test (Mating)

Insertion and extraction

(3 times)

Matingresistance(m)

OK OK OK OK OK

(a) Non-treatment (Au plated surface)

(b) PFPE-oil (7wt%) treatment

Charge up Analysis point

0.2mm

○

○

○

0.2mm

Analysis point

○

○

○

○

○

Result

Result

Fluorine was detected all analysis point.

Wave length of charlatanic x-ray (Å) Dispersive crystal name

Intensity

Detected elements

100m

Fig.5-2-19 Results of SEM photograph and EPMA qualitative analysis for Au plated surface after the insertion and extraction 50 times.

Charge up

0.2mm

Analysis point

○

○

○

Result

Fluorine was detected all analysis point.

Table 5-2-4 Kinds of PFPE-oil

No Molecular

weight

Surface tension (mN/m） at 20℃

1 8400 17-20

2 750 16-17

3 8000 18-20

4 400-2000 14-20

5 1000-1200 19-20

6 800-1000 18-19

7 15000 25

8 1000-10000 23

CF

3

－ （ CF

2

CF

2

O －（ ）

_n

OCF

2

－ ）

_m

OCF

3

F － （ CFCF

2

O － ）

_n

CF

2

CF

3

CF

3

CF

3

－ （ CFCF

2

O ）

_n

（ OCF

2

）

_m

CF

3

― CF

3

CF

3

－O－ （CF

2

CF

2

CF

2

）

_n

（OCF

2

） ―

_m

CF

3

CF3－O－（CF2CF2CF2O）_n （OCF2）―_mCF3

CF

3

－ O － （ CF

2

CF

2

O ）

_n

（ OCF

2

― ）

_m

CF

3

HOCH2－CF2O－（CF2CF2O）n（OCF2）―mCF2－CH2OH

F － （ CF

2

CF

2

CF

2

O － ）

_n

CF

2

CF

3

Chemical structural formula

Table 5-3-1 Test procedure of salt spray, two mixed gas flow and nitric acid vapor corrosion resistance test.

Kind of corrosion resistance

test

Test procedure Specifications

Mating －

↓

Initial Measurement of mating resistance

↓

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