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STELLA SPECIALTY CHEMICALS (S) PTE LTD
A LEADING MANUFACTURER IN HIGH PERFORMANCE
SPECIALTY CHEMICALS & PRODUCTS
GREEN AND CLEAN PRODUCTS,
AFFORDABLE ALTERNATIVES
星材料股份有限公司
ABOUT US
STELLA SPECIALTY CHEMICALS (S) PTE LTD (STELLA), a German-Singapore joint venture, is a fast growing specialty chemicals company offering innovative and green chemicals for coating, plat-ing, and treatment processes in electronics, auto-mobile and jewellery industries. With a sturdy foundation and innovative ideas, STELLA aims to bring surface finishing technologies to a whole new level.
STELLA strives to be a leading global manufacturer of innovative specialty chemicals and products.
To achieve its vision, STELLA’s technology-driven product innovation, research and development, environmental sustainability and cost-effectiveness, lead us towards fulfilling new mar-kets and customer requirements.
SPECIALTY CHEMICALS FOR ELECTRONICS INDUSTRY
ELECTROLESS NICKEL / IMMERSION GOLD (ENIG)
- ROHS COMPLIANT
STELLA’s ENIG process is specially designed to suit the PCB fabrication including Flexible
boards with compliance to RoHS requirements. With unique low running temperature of EN bath and
superior stability, the uniform ENIG deposit is capable of meeting the requirements of super complex
and fine line, high density PCB’s wire bonding and soldering.
Features & Benefits
EN RoHS compliance (No heavy metal)
Low operation temperature EN (< 65°C) (patent filed)
Plating with microcolumnar structure (patent filed)
Stable deposit appearance throughout solution life with excellent ductility
Evenness of deposit (< 10% variation)
Reduce EN dummy plating frequency
Extended bath life and high stability (Up to 5MTO)
Fine ball bondability
Easy maintenance and control
EN waste treatment technology (patent granted in China)
NEW GENERATION
ORGANIC SOLDERABILITY PRESERVATIVES (OSP)
STELLA has developed a new innovative organic thin film process which is halogen-free and is com-
patible to multiple lead-free reflow cycles. STELLA OSP is a short
and simple process with broad operating window, thus enabling
easy maintenance and control of operating solutions.
Features & Benefits
Halogen-free OSP for flexible PCB
Extreme low acidic value (20~50% of conventional technology)
Excellent lead-free solderability
No pre-coat needed
Selective coating on copper (No coating on gold surface)
Copper tolerance >100ppm
Perfectly suitable for flexible PCB
Environment friendly with minor odour
WATER BASED PORE BLOCKER
Pore Blocker is a treatment process used to form a protective layer of self -assembled mono-
mers on metal surfaces. Used in the electronics industry, this technology provides enhanced corro-
sion and wear resistance. Hence reducing the thickness of precious metal plating and leading to sig-
nificant cost savings. This is one of STELLA’s patented technologies which was qualified by MNCs.
Features & Benefits
A solvent free waterborne process to form ultra-thin nano pro-tective layer in few seconds
Applicable to protection of Gold, Silver, Copper, Nickel & Tin
Easy process for make-up and maintenance
Very uniform coating - no water or oily stain
No volatile organic chemicals (VOCs)
Excellent heat-resistance, humidity-resistance and solderability
Better anti-tarnish and wear resistance
SPECIAL ADDITIVES FOR HARD GOLD PLATING
STELLA’s Hard Gold Plating is a high speed process which produces a bright deposit with excellent
corrosion resistance and solderability. With special formulated additives in the hard gold plating solu-
tion, the deposit thickness of gold at low current density area is sig-
nificantly reduced and immersion of gold is eliminated. Substantial
gold savings and extended bath life are realized. This is one of the
technologies qualified by MNCs.
Features & Benefits
Reduce up to 25% of gold consumption
High current efficiency
Long bath life
Additive system is analysable and controllable
Even deposit layer
Wide operating window
After Stella’s pore blocker treatment, customer’s products (25nm Au on 1.27~2.54µm Ni) are able to pass 48 hours of
salt spray test!
ELECTROLESS NICKEL (EN) - ROHS COMPLIANCE
Mid-Phosphorus EN — STELLA’s new generation RoHS Mid-P EN chemicals provide nickel nod-
ule free smooth surface.
Features & Benefits
RoHS compliance
Superior smoothness and brightness
High deposition rate of > 20µm / hour
Suitable for hard disk drive, memory disks and wafer fabrication
Excellent bath stability,
High loading (>3.0dm2/L)
High tolerance of Zinc ions (up to 200ppm)
Long bath life (Al: ~5-6 MTO, Fe/Cu: >8 MTO)
High-Phosphorus EN — STELLA’s RoHS H-P EN is suitable for
functional and decorative purposes, providing uniform surface fin-
ishing with high corrosion resistance. Compatible for various sub-
strates.
Features & Benefits
RoHS compliance
High deposition rate of 12-15µm / hour
High corrosion resistance
Suitable for functional and decorative purposes
Excellent bath stability
Fine grain dense deposit without pitting
Long bath life (>6 MTO)
STELLA
M-P EN
Traditional M
-P EN
TOTAL EN PROCESS
STELLA provides total EN process solutions including pre-treatment and post treat-
ment as well as novel EN waste treatment.
3D MOULDED INTERCONNECT DEVICE (MID)
With the ever-evolving technologies and market demand for higher performance solutions, STELLA
has developed new generation and green technologies for 3D MID applications. A key process in
MID, STELLA’s Electroless Copper is a fast, single-step plating process uniquely designed for opti-
mum performance and enhanced benefits.
Features & Benefits (Electroless Copper)
High deposition rate (~10µm in 1hour)
Low operating temperature (< 50°C)
High stability, simple to operate
Fine grain copper deposit with excellent adhesion
Low stress with uniform deposit
Features & Benefits (Low Temp. EN)
Low operating temperature (< 65°C)
High stability, simple to operate
Even deposit with excellent ductility
Low stress with uniform deposit
ALUMINIUM ANODIZING
STELLA’s new generation aluminum anodizing chemicals are de-
signed for high power Light Emitting Diode (LED).
Features & Benefits
High ratio between breakdown potential and film thickness (2700V / 25µm)
Fine grain size of 2-10nm
High rate of forming film (0.8-1.2 µm/min)
Chrome-free
Excellent bath stability
Easy bath maintenance and control
Front Back
SPECIALTY CHEMICALS FOR AUTOMOTIVE INDUSTRY
MULTI LAYER NICKEL PLATING
Semi-Bright Nickel — STELLA’s high performance semi-bright nickel chemicals are very stable and
able to operate over a wide range of operating conditions.
Features & Benefits
Sulphur-free plating
Excellent corrosion resistance (Potential difference between bright nickel layer; 120-150mV)
High ductility, low stress, excellent leveling and uniform proper-ties
Additive have no strong odor
Excellent performance over a wide range of operating condi-tions
RoHS compliance
Bright Nickel — STELLA’s bright nickel chemicals can achieve deposits with high brightness, good
levelling and ductility.
Features & Benefits
High tolerance for impurities
Simple operation, wide operating window, uniform thickness de-posit
Can be operated with standard sulphate or high chloride baths
RoHS compliance
Micro-porous Nickel — STELLA’s micro-porous nickel chemicals are used to deposit bright micro-porous nickel layer that reduces corrosion attacks.
Features & Benefits
Even distribution of pores; amount of micro-pores obtained 30K-50K/cm
2
Reduce corrosion attacks. Ultimate corrosion resistance can be improved from 0.5 to 1.5 Class for CASS testing
To be used over the bright nickel deposit in multi-layer nickel and chrome systems
RoHS compliance
SPECIALTY CHEMICALS FOR GENERAL PLATING
PLATING ON PLASTIC FOR AUTOMOTIVE PARTS
STELLA provides a whole package solution for plating on plastic, especially electrolytic copper pro-
cess with excellent throwing power and levelling.
Features & Benefits
One-stop solution provided including pre-treatment and post-treatment
Superior brightness without pitting
Excellent corrosion resistance
Low running cost
PRECIOUS METAL COATING
Cyanide-free Alkaline Gold & Cyanide-free Silver—STELLA’s latest
green technology offers environmental-friendly and less hazardous
specialty chemicals for precious metals coatings. Suitable for vari-
ous industries, our cyanide-free coatings provide functional as well
as high quality surface finishes. Used with our post treatment anti-
tarnish chemicals, the surface finishing is able to withstand higher
corrosion thus reducing overall costs.
STRIPPERS & PRE-TREATMENT
Nickel & Tin strippers are formulated for stripping nickel and tin/tin-alloys from copper without attacking the base metals. STELLA’s efforts to customize the chemicals helps in optimizing the per-formance and operations tact time of our customer’s production line, resulting in significant cost
saving. Copper, Silver & Chrome strippers are also available.
STELLA’s range of pre-treatment cleaners and substrate activation chemicals compliment all our metal plating chemicals. We have also specialized cleaners for removal of carbon deposits on used parts for the aerospace industry. Other specialized Electro-polishing chemicals for Stainless Steel substrate are also available.
STELLA PRODUCT LIST
Electroless Nickel/Palldium Immersion Gold for PCB Final Finishing - RoHS
compliance
1 SSC AFB-78: Alkaline Cleaner for Flexible boards
2 SSC PD-120: Pd initiator
3 SSC LTEN 287 (A, B and C): Low temperature EN for ENIG
4 SSC EN-28 (AI, AR, B and C): EN for ENIG
5 SSC EPD-01: Electroless Palladium for ENEPIG
6 SSC ImAu-08: Immersion Au for ENIG
Organic Solderability Preservative for PCB Final Finishing
7 SSC CP-10: Dry salt for OSP acid cleaner
8 SSC CP-20 (ADD, ME-200): Microetch for copper and copper alloys
9 SSC CPCOAT CU-37: OSP Accelerator
10 SSC CPCOAT (RFU, RA, ADD): OSP for selective PCB boards
11 SSC CPCOAT PLUS (RFU, RA, ADD): OSP for high temperature application
Pore Blocker for Electronics Applications
12 SSC GPCOAT-02: Pore Blocker for Au/Ag protection (Connector, ENIG, Jewellery etc)
13 SSC CU I: Copper Protection, Pink Gold
14 SSC AU-SK/ SSC AU-SK II: Post Treatment of Gold, Nickel, Electroless Nickel and Tin/Tin Alloy
15 SSC ANTI-08: Pore Blocker for Leadframe, Smartcard and Touch Screen Panel
16 SSC AU PB-01: Pore Blocker for thin gold/nickel/tin
Electroplating Chemicals for Connectors & Leadframe
17 SSC ES-05: Electrolytic Cleaner
18 SSC ES-06: Electrolytic and Soak Cleaner
19 SSC HGC-01 (MU, REP, Part A, Plus Part B, CDT Salt, Co Additive): Hard gold plating
20 SSC HSAG (MU, REP, WT, pH ACID and BR): High Speed Silver
21 SSC HAG (HD, BR): Hard silver plating
22 SSC PDNI-AF: Ammonia Odor Free Palladium/Nickel Plating
23 SSC SP815 (Anode Activator, ADD A, REP): Ni-P alloy electroplating
Special Chemicals for 3-D MID Process
24 SSC MID-NM: Alkaline Etching for LCP, Resin and LDS
25 SSC PREDIP: Enhancer for adhesion
26 SSC MID-PD: Pd Activator
27 SSC MID-ECU (A, B, C, D and ST): Electroless CU
28 SSC MID-LTEN (A, B and C): Electroless NI
29 SSC MID-WD: EN Protection
Electroless Nickel Process Chemicals - RoHS compliance
30 SSC AC-01: Soak cleaner
31 SSC EC-02: Electrocleaner
32 SSC AE-2A: Acid Etching for Aluminium and Alloys
33 SSC DS-98: Aluminium desmutting
34 SSC AL-DS: Aluminium desmutting and activation
35 SSC ZC-69: Zincate
36 SSC NI-08AM (A, B and C): M-P EN for Al & Alloys
37 SSC NI-08FM (A, B and C): M-P EN for Fe & Cu
38 SSC NI-68 (A, B and C): H-P EN
39 SSC WD-01: EN Chrome Free Passivation
40 SSC EN WT (Starter, Reducer and ST): EN Waste Treatment
Non-metallic Surface Metallization Process (POP)
41 SSC WT-68: Etching Wetting Agent
42 SSC NE-02: Neutralizer
43 SSC ACC-38: Promoter
44 SSC CAT-34: Pd Activator
45 SSC AEN-19 (AI, AR, B and C): Alkaline Electroless Nickel for Plastic
46 SSC ACU-01S: Acid Aluvial Copper
47 SSC ACU-07: Acid Copper
48 SSC NI-SB100 (100, 110, 120 and NI-WA): Semi bright nickel
49 SSC NI-B200 (MU and MNT): Bright nickel
50 SSC NI 700 (MU, MNT, MP-701, MP-702 and MP-702C): Micro porous nickel
51 SSC CR ACT: Electrolytic (cathodic) activator for electroplated bright nickel deposits plated prior to
52 SSC CR 800 (Part A and Part B): Bright chrome
53 SSC WD-01: Post treatment
General Chemicals
54 SSC BS (A and B): Bright Silver Plating
55 SSC NCG-01 (MU, RA, Brightener and Conducting Salt): Non Cyanide Gold
56 SSC EP-02: Electrolytic Stainless Steel Polishing
57 SSC CP-1 (A1 and B1): Copper Polishing
58 SSC ACV 35: Dry Salt Activator
59 SSC BNZ (MU Salt, Rep and WT): Black Nickel plating
60 SSC BNT (ADD, REP): Tin-Nickel alloy plating
61 SSC NSTRIP-01(A and B): Non Cyanide Nickel and EN Stripper from Steel and Copper
62 SSC NSTRIP-06: Non Cyanide Nickel Stripper from Copper and Copper Alloys
63 SSC SNTRIP-01 (A and B): Electrolytic Tin Stripper from Stainless Steel Jigs
64 SSC SNTRIP-08: Nitric acid free Stripper for Tin and solder
65 SSC CUTRIP-01: Copper Stripper from Stainless Steel
66 SSC NES-P: Electrolytic Jig Stripper
STELLA PATENTS
STELLA SPECIALTY CHEMICALS
(German-Singapore joint venture)
Green and Clean Products,
Affordable Alternatives
Stella Specialty Chemicals (S) Pte Ltd
星材料股份有限公司
Office : Blk 55, Ayer Rajah Crescent, #05-05, Singapore 139949
Manufacturing Site : Blk 55, Ayer Rajah Crescent, #03-17/18, Singapore 139949
Phone : (65) 6773 1978
Sales Contact (Singapore) : (65) 9771 6098 / (65) 9725 2766
Fax : (65) 6773 1979
E-mail : [email protected]
Website : http://www.stellachem.com
Stella New Materials Technology (Wuhan) Co., Ltd.
Office Address : Room 1201 Tower E3, Optics Valley Software Park, Optics
Valley, No. 1 Guanshan Avenue, Donghu New Technology
Development Zone, Wuhan, Postcode : 430000
Phone : (86) 27 8757 1170 / (86) 139 162 19157
E-mail : [email protected]
Website : www.stellanewmaterials.com
