Curtiss-Wright Parylene Coatings Intro 2015
-
Upload
jason-delaney -
Category
Documents
-
view
75 -
download
3
Transcript of Curtiss-Wright Parylene Coatings Intro 2015
1 | May 20, 2015 | © Curtiss-Wright
Surface Technologies Division
Prepared by: Jason Delaney Technical Sales Manager T: +353 872715757 E: [email protected] W: www.parylene.co.uk
Curtiss-Wright Parylene Coatings An introduction to our services 2015
2 | May 20, 2015 | © Curtiss-Wright
Agenda
Curtiss-Wright Corporation Curtiss-Wright Parylene coatings
Parylene, its properties and applications
3 | May 20, 2015 | © Curtiss-Wright
CURTISS-WRIGHT CORPORATION
Founded by Glenn Curtiss and The Wright Brothers 1929 Main industries served:
Aerospace, Defence, Medical, Energy, Industrial Engineering
Full Time Employees: 12K ±
Annual Revenues: $3B±
Highly engineered products and services in three business segments:-
Surface Technologies Motion control Flow control
4 | May 20, 2015 | © Curtiss-Wright
Curtiss-Wright Parylene coatings
Current Parylene coating sites: 4 North America (Texas, California, Minneapolis, Ottwa;Canada)
1 Europe (Galway, Ireland) ISO13485 & ISO 9001 certified
5 | May 20, 2015 | © Curtiss-Wright
Quality and Expertise
Leveraging over 25yrs of experience and expertise in Parylene coating of complex geometries and challenging substrates.
Continually developing applications, adhesion promotion and production methods through centres of excellence internal and external.
Coating facilities are ISO13485 & ISO 9001 certified
Our Proprietary Dimer is over 99.7% pure. Highest yielding and most uniform coating in the industry.
Our Parylene is tested to the relevant ISO10993 and USP
Class VI tests.
Device and drug master files are held with the US FDA and available to support client submissions. MAF No.1176 held with the US FDA.
6 | May 20, 2015 | © Curtiss-Wright
Service commitment and value add
Flexible responsive customer focused services: Supporting evaluation and development runs through to
commercial production services.
Providing Kanban services – Rapid response, receiving parts to meet production needs, minimising WIP and stock levels.
Lean supply chain. Liaising with approved suppliers to provide one point of contact for supply of Parylene coated parts. One point of responsibility for quality and supply chain fulfilment.
Co-ordinating with quality, purchasing and production to assure optimisation of service and support on going.
7 | May 20, 2015 | © Curtiss-Wright
CW Parylene coatings
Protects and Lubricates critical components:
Metals Elastomers Electronics Plastics Implantables
Used widely in Medical device, Automotive, Aerospace and Defence applications.
Conformal, ultra thin and light weight. Lubricious hydrophobic/dry film coating. Highly resistant to chemicals and moisture. An excellent environmental protective barrier. Most common variants:
8 | May 20, 2015 | © Curtiss-Wright
Parylene coating process
Generic name for a unique polymer series based on p-Xylyene.
The vapour deposition is carried out under vacuum at room temperature.
The single coating builds up one molecule at a time, encapsulating any and all exposed surfaces; resulting in a highly conformal coating.
9 | May 20, 2015 | © Curtiss-Wright
Properties of Parylene
Lightweight and Ultra thin : Controlled as low as 0.05µm. Pin hole free at 0.6µm.
No stressors: thermal or cut forces on the device. No ingredients to out gas or leech.
Highly conformal coating: Suitable for substrates with very complex typography e.g.
Stents, Miniature PCBs
Bio compatible, Bio Stable and Non- thrombogenic. ISO10993 & UPS Class VI tested.
Green chemistry: chemically inert and non-toxic. RoHS and Reach compliant.
Dry film lubricant: Low co-efficient of friction 0.25 static and dynamic. (N)
Environment barrier: Protects against moisture, corrosive fluids, chemicals, gases,
temperature and fungus
Particulate free
High dielectric strength: Excellent at containing electrical energy. 7kVA at 25µm
Adheres well to metal, rubber and plastics
Optically clear
10 | May 20, 2015 | © Curtiss-Wright
Medical Device Applications
Dry film Medical coating – Medical device applications:
Mandrels / Wires – catheter lumen, balloon welding, forming and tipping. Guide wires – braided and straight. Needles and Probes Medical Elastomers – removing tackiness of silicone and rubber components. Plastic and metal subassemblies in surgical tools and moving parts.
Environmental protection - Medical device applications:
Vascular and peripheral stents Gastric implants Surgical entry devices – trocars, speculums Pacemakers – leads and PCB’s Electrosurgical tools Cochlear and ocular devices Medical Elastomers – o’rings, gaskets and seals Needles and probes Medical electronics and diagnostics
11 | May 20, 2015 | © Curtiss-Wright
Elastomeric applications
Coating typically 0.5µm - 2µm Thermally stable between -200°C and 140°C Resolves tackiness without adding weight or materially affecting elasticity. Seals micro porosity protecting against potential leachable ingredients. Final product benefits from a bio compatible, non-toxic and chemically inert environmentally protective
barrier.
Typical elastomeric applications: Gaskets / O-rings /Seals – Environmental barrier and tackiness. Keypads: Silky finish, protecting printed legend. Stoppers and syringe plunger tips: low static co-efficient of friction 3D Printed models Silicon and Rubber Tubing Catheter components Entry devices
12 | May 20, 2015 | © Curtiss-Wright
PCB’s after 100+ hours salt spray testing
Parylene barrier properties - Electronics
Uncoated Coated
15 | May 20, 2015 | © Curtiss-Wright
Defence electronic application:
Military ground vehicle electronics 6 board controller assembly Existing conformal protective coating allowed ingress of gases present in the boxed unit,
causing damage to ceramic components resulting in board failures. Moisture protection also required as the units are not hermitically sealed.
Solution: The chemical and moisture resistance of Parylene C at 12-15µm meets and exceeds the
needed protection.
16 | May 20, 2015 | © Curtiss-Wright
Additional benefits for Electronics coated with Parylene
RoHS compliance and Lead-free solders: Tin Whiskers more prevalent. Parylene is an excellent whisker suppressant. In test found to be the best thin film conformal coating. First choice in high reliability electronics: Medical Device, Military and Aerospace. Curtiss-Wright Controls carried out testing on coatings to improve joint life of Lead-free
solder joints for military electronic applications. Parylene far surpassed the performance of any other
conformal coating tested. Joint life improving by an average of 2X under thermal
shock testing (-40/125C)
17 | May 20, 2015 | © Curtiss-Wright
Aerospace/Aviation applications:
Electrical cable raceways
Problem: Anodised aluminium exposed to aviation chemicals. Risk of electrical discharge from lightening strike. Current solution adds significant weight and cost.
Solution: Parylene C at 20µm Voltage withstand of >5kVa Chemical resistance far surpassing other coatings tested Adds very little weight. Reduction in cost $2.50 vs $12 -20 per unit.
18 | May 20, 2015 | © Curtiss-Wright
Other application examples:
Aviation – Copper nickel back plate. (Electrical Housing) Parylene C providing electrical barrier protection. 15-18µm
Elastomeric Gasket/ O-rings Parylene C barrier to gases and reducing tackiness of the
substrate and maintain elasticity at 1µm.
Under vehicle inspection – LEDs rated to IP67. Parylene C barrier at 18µm. Fasteners – Electrical barrier to lightening strike. Elastomeric parts - Keypads, Gaskets, O-rings – Environmental barrier and tackiness. Power supplies, Sensors – Environmental and Electrical barrier. Magnets, wire round and ferrite cores - Environmental and Electrical barrier.
19 | May 20, 2015 | © Curtiss-Wright
CW Parylene coatings
Protects and Lubricates critical components:
Metals Elastomers Electronics Plastics Implantables
Used widely in Medical device, Automotive, Aerospace and Defence applications.
Conformal, ultra thin and light weight. Lubricious hydrophobic/dry film coating. Highly resistant to chemicals and moisture. An excellent environmental protective barrier. Most common variants:
20 | May 20, 2015 | © Curtiss-Wright
Surface Technologies Division
Thank You
Prepared by: Jason Delaney Technical Sales Manager T: +353 872715757 E: [email protected] W: www.parylene.co.u