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MEC SURFACE PREPARATIONMEC SURFACE PREPARATION
WIM ONGENAEWIM ONGENAE1717--18 MARCH 200518 MARCH 2005
StSt--Petersburg, RussiaPetersburg, Russia
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Several options depending on: Several options depending on:
ApplicationApplication
Equipment (metal parts)Equipment (metal parts)
Technological requirementsTechnological requirements
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MECBRITE SERIESMECBRITE SERIES
H2SO4 / H2O2 basedH2SO4 / H2O2 based
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MECBRITE CAMECBRITE CA--92/CA92/CA--95 95 (degreasing, etching and anti(degreasing, etching and anti--tarnish in one)tarnish in one)
Prior IL DF ( L/S Prior IL DF ( L/S > 100 > 100 µµm)m)Prior to IL Liquid ResistPrior to IL Liquid ResistPrior to OSPPrior to OSPPrior to HASLPrior to HASLPrior to UV ink printingPrior to UV ink printing
––Cu capacity : 45 g/LCu capacity : 45 g/L
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MECBRITE CAMECBRITE CA--5560 RL1 5560 RL1 (high capacity micro(high capacity micro--etch)etch)
Prior IL DF ( L/S Prior IL DF ( L/S < 100 < 100 µµm)m)Prior to IL Liquid ResistPrior to IL Liquid ResistPrior to HASLPrior to HASLPrior to UV ink printingPrior to UV ink printing
––Cu capacity : 55 + g/LCu capacity : 55 + g/L
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TOPOGRAPHYTOPOGRAPHY
BLANK CA-92/CA-95 CA-5560 RL1
Etch rate = 1,0 µmEtch rate = 1,0 µm
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PROCESSPROCESS
MECBRITE CA-...RT, 1-2 bar
10-30 sec
WATER RINSE3-step cascade
For CAFor CA--5560 one step5560 one step5% H2SO4 rinse required5% H2SO4 rinse required
DRY
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EQUIPMENT MATERIAL FOR MECBRITE
CAN BE USED CANNOT BE USEDPARTLY USABLE
SS 304SS316
RIGID PVCRIGID PPRIGID PE
SS WELDEDRIGID PPESOFT PVC
FOAMED POLYMER
TITANIUM
SOFT EPT
TITANIUM WELDED
SOFT THERMORUN
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MECETCHBONDMECETCHBOND
Unique surface treatmentUnique surface treatment
developed by developed by MECMEC
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ProcessProcessCleaner MAC 5330 RTUCleaner MAC 5330 RTURinseRinseDry, Pre Dip or SqueezeDry, Pre Dip or SqueezeMECETCHBOND CZ 8100 / CZMECETCHBOND CZ 8100 / CZ--2001 2001 RinseRinseAcid rinseAcid rinseRinseRinseDryDry
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MACMAC--5330 RTU5330 RTU
Features•H2SO4/H2O2 type acid cleaner
0.1-0.3m mild etching
•Can eliminate contaminants for MEB
Finger print,additive of plating,DF stain and so on
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MACMAC--5330 RTU5330 RTU
How to use•Ready to use
•10-15sec contact at 25
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MACMAC--5330 RTU5330 RTU
Control method•Copper conc.: Max.40 g/L
•H2O2 conc.: more than 30 g/L
•H2SO4 conc.: more than 90 g/L
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MACMAC--5330 RTU5330 RTUPretreatment agent MAC-5330
RTUHydrochloric
acid Caustic soda Conventional MEC degreasing agent
Fingerprints × ~×
Copper plating additive (A)Copper plating additive B)
×
×
-
DF adhesive × × -
Soluble ink from AOI check ×
Anti-tarnish
Rust remove ×
Effect on MECetchBOND ×
:Very good,:good,:acceptance,X:no good
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MACMAC--5330 RTU5330 RTU
•Prior to MECetchBONDILDF/OLDF and SR application
ILDF:Eliminate heavy chromate
OLDF:Eliminate plating additives and DF scum
SR: Eliminate anti-tarnish agent
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EQUIPMENT MATERIAL FOR EQUIPMENT MATERIAL FOR MACMAC--53305330
CAN BE USED CANNOT BE USEDPARTLY USABLE
SS 304SS316
RIGID PVCRIGID PPRIGID PE
SS WELDEDRIGID PPESOFT PVC
FOAMED POLYMER
TITANIUM
SOFT EPT
TITANIUM WELDED
SOFT THERMORUN
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MECETCHBOND
WHAT IS IT ?
HOW DOES IT WORK ?
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MECHANISM
Micro-etch
Copper oxideHCI type
Copper
MecEtchBond
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NaPSH2SO4 / H2O2
IT CREATES AN UNKNOWN SURFACEROUGHNESS OF COPPER
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MEB CZ-8100/CZ-2001 APPLICATIONS
- DRY FILM
- SOLDER MASK- MICRO VIA RCC
- PLASTIC BGA- BO ALTERNATIVE
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MEB PROCESS PRIOR SM/DFMAC-5330 RTU + RINSE
CZ-8100/CZ-200130-40°C (standard 35°C)
1-2 bar25-30 sec.
WATER RINSE
ACID RINSE20-30°C
0.5-1.5 bar10-20 sec.
(D.I. ) WATER RINSE
DRY
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EQUIPMENT MATERIAL FOR MEB
CAN BE USED CANNOT BE USEDPARTLY USABLE
TITANIUMRIGID PVCRIGID PPRIGID PE
RIGID ULMOLER/PE (typ resin)RIGID PPESOFT PVC
FOAMED POLYMERTITANIUM WELDED
SS 304
SS316
SOFT EPT
SS WELDED
SOFT THERMORUN
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MECETCHBOND CZ-8100/CZ-2001Physical Properties
Appearance
S.G. (at 20°C) CZ-8100
Make-up
Blue clear liquidReplenisher
Yellow clear liquid
1.13 1.11
S.G. (at 20°C) CZ-2001 1.09 1.07
How to make-upFor make-up use CZ-8100 M / CZ-2001 M
How to useTemperature : 35°CContact time : 20 - 40 sec. depending on applicationSpray pressure : 1.0 - 2.0 bar
How to control1. Drag-out compensation2. Control copper concentration 3. Control concentration/dilution of the working solution
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CZ-8100 Copper Foil
BLANK 1µm etch 2µm etch
Plated copper
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CZ-2001 Copper Foil
BLANK 1µm etch 2µm etch
Plated copper
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PERFORMANCE
-DRY FILM ADHESION
-SOLDERMASK PEEL TEST
RESISTANCE TO ENIG (Ni-Au)
RESISTANCE TO E-Sn
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Improved Yields due to better Improved Yields due to better adhesion of DFadhesion of DF
Up to factor 10 depending on Cu typeUp to factor 10 depending on Cu type
Very effective results for L/S Very effective results for L/S < 100 < 100 µµm m with high resolution
––CCLCCL
––Panel Plated CuPanel Plated Cu
––Rolled Annealed (RA) CuRolled Annealed (RA) Cu
with high resolution––Proven track record all Proven track record all over Europe and Asiaover Europe and Asia
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ExampleExampleCZ-2001 CZ-8100
Etch rate:1.0μm Etch rate: 1.0 μmL/S=30/200 L/S=30/200
Mag.:×1500, 75°
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Example II ( # Opens)Example II ( # Opens)
NaPSNaPS MEBMEB
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SOLDER MASK PEEL TEST(Test Method)
Copper SurfaceTreatment
S/M Printing
Crosshatch
Deterioration
Machinal scrubbing : BuffingChemical Scrubbing : 1) CZ-8100 / CZ-2001
2) CB-800 (H2SO4-H2O2 Type)
S/M : PSR-4000 Z-26 (Taiyo Ink)Exposure : 300 mjPrecure : 80°C for 30 min.Development : 1 wt% Na2CO3 at room temperaturePostcure : 150°C for 40 min.
Immerse into 10% HCI for 10 min., then rinse with waterand dry
Peel Strenght Tape on crosshatch, then peel it
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SOLDER MASK PEEL TESTH2SO4 - H2O2 type
Or NaPS BuffingCZ-8100/CZ-2001
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RESISTANCE TO ELECTROLESS NICKEL-GOLD
MEB
CZ-8100/CZ-2001 Buffing
Buffing
Electroless GoldElectroless Nickel
90°C, 30 min. 90°C, 30 min.
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RESISTANCE TO ELECTROLESS TIN
No Solder Mask lifting !No Solder Mask lifting !
No infiltration of Tin under the Mask !No infiltration of Tin under the Mask !
More independant regarding type of More independant regarding type of Mask !Mask !
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S.I.R. (JIS Z 3197 6.8)
Test Board : Comb pattern board (Glass Epoxy G-10)Humidification : 40°C 95% RH
More than 1 x 10 ΩMore than 1 x 10 Ω
13
12
Initial ValueAfter 96 hours
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IONIC CONTAMINATION (MIL-STD-2000A)
Test Board : Copper Clad Bord 25 x 12.5 cmTest equipment : Omega Meter Model 600
Conditions Solution Temperature : 30°CContact time : 30 sec. - 45 sec.Spray Pressure : 1.0 kg/cm²Water rinse : Rinse with water for 3 steps
after solution contact
CZ-2001CZ-8100
0,05 µg NaCl/cm²0,27 µg NaCl/cm²
H2SO4 - H2O2MICROECHANT 0,54 µg NaCl/cm²
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MEB PROCESS AS BLACK OXIDE ALTERNATIVE
CZ-200130-40°C (standard 35°C)
1-2 bar40-60 sec.
WATER RINSE
ACID RINSE20-30°C
0.5-1.5 bar10-20 sec.
(D.I. ) WATER RINSE
DRY
MAC-5330 RTU + RINSE
WATER RINSE
ADHESION PROMOTORCL-2301
20 sec. at RT, spray
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FEATURESFEATURES
Mechanical adhesion ( = rough Mechanical adhesion ( = rough topography by CZtopography by CZ--2001)2001)Chemical adhesion ( = adhesion Chemical adhesion ( = adhesion promotor by CLpromotor by CL--2301)2301)
Excellent adhesionExcellent adhesion-- No delamination ! No delamination ! -- Optimal peelstrenghts !Optimal peelstrenghts !
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Peel Strength: MCL-E-679 ( Hitachi )FR-5 Class FR-4, Prepreg: GEA-679N
0,00
0,20
0,40
0,60
0,80
1,5 2 2
CZ-2001 H2SO4 /H2O2Type
Reduced Copper
Pee
l Str
teng
th (N
/mm
)CL-2301
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Delamination Test: MCL-E-679 ( Hitachi)FR-5 class FR-4, Prepreg: GEA-679N
ReducedReducedCopperCopper
CLCL--23012301CZCZ--2001200122μμmm
CLCL--23012301CZCZ--2001 2001 1.51.5μμmm
280280270270260260250250
PCT 8hrsPCT 8hrs→→Solder Dip 30secsSolder Dip 30secs
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Results on All Other Materials Results on All Other Materials Available Upon RequestAvailable Upon Request