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


Agenda

Curtiss-Wright Corporation Curtiss-Wright Parylene coatings

Parylene, its properties and applications


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


Curtiss-Wright Parylene coatings

Current Parylene coating sites: 4 North America (Texas, California, Minneapolis, Ottwa;Canada)

1 Europe (Galway, Ireland) ISO13485 & ISO 9001 certified


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.


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.


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:


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.


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


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


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


PCB’s after 100+ hours salt spray testing

Parylene barrier properties - Electronics

Uncoated Coated


Barrier properties: Comparisons


Conformal coating comparison


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.


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)


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.


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.


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:


Surface Technologies Division

Thank You

Prepared by: Jason Delaney Technical Sales Manager T: +353 872715757 E: [email protected] W: www.parylene.co.u

curtiss-wright parylene coatings intro 2015

Documents

curtisswright quality

wright brothers

glenn curtiss

supply of parylene

conformal coating

uniform coating

coating facilities

single coating