Coatings in Biomedical Device Applications
There are many types of coatings used in the manufacturing and preparation of biomedical devices. Some coatings protect the device from corrosion while others protect from complications such as tissue trauma, infection, or even rejection. Drug delivery coatings are also becoming common. Other biomedical devices, including angioplasty balloons, are freestanding membranes that must be of uniform and fixed thickness in order to function properly.
Thickness measurement methods of these coatings vary, but one thing is certain - the most commonly used methods (such as weighing a part before and after coating) do not detect incomplete coverage or coating non-uniformities that can lead to device failure.Application Note Request
The Filmetrics Advantage
Filmetrics offers a broad range of solutions for measuring coated biomedical devices:
- Stents: The small coated-areas of stents usually require a microscope-based instrument. Our F40 is used in dozens of labs to measure thickness of passivation and/or drug-delivery coatings. A special stent fixture for convenient rotational positioning during measurement is available.
- Implants: Irregularly-shaped surfaces are generally the only challenge when measuring coatings on implants. Filmetrics has a full line of probes for this application.
- Guide Wires & Needles: Like stents, these devices often benefit from microscope-based instruments such as the F40.
- Catheter and Angioplasty Balloon Wall Thickness: Thickness greater than 100 microns and visible-spectrum opacity both mean that the F20-NIR is the preferred instrument for this application in large number of labs worldwide.
Contact our thin-film experts to discuss your biomedical device application.
Filmetrics offers free trial measurements - results are typically available in 1-2 days.
Thickness Measurement Example
Stents are small tubes made of plastic or metal which are inserted within blood vessels to prevent constriction. Many times, these stents are treated with a polymer or drug coating to enhance functionality and corrosion-resistance. Using our F40 instrument along with 20x objective (25µm spot size), we are able to measure the thickness of these coatings along the outer diameter of a stainless-steel stent. This powerful instrument offers those in the medical device industry a system capable of fast and reliable thickness measurements that is non-destructive and requires no sample preparation.
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Amorphous & Polysilicon
Measure thickness, crystallinity, and n and k of all forms of amorphous and polycrystalline silicon.
Our F80 Thickness Imaging products are used to measure oxide, STI, and metal CMP processes.
Filmetrics stocks instruments that measure the thousands of dielectric films used throughout industry.
CVD, dielectrics, barrier, PECVD, passivation, insulator, protection, Al2O3, CoO, ZnO, MoO, TiO2, Cr2O3, Nb2O5
Filmetrics systems are used widely in the automotive industry to verify hardcoat and primer thickness.
Acrylic, Automotive industry, Chemical resistance, Clear coating, Decorative coating, Hardcoat, Eyewear, Face shield, Hardcoat, Hardness, Interpenetration Layer, Marring, Ophthalmic lens, Optical quality, Plastic lens, Polycarbonate, Polyester, Siloxane, Primer, Protective film, Scratch resistant, Screen protection, Surface finish, Surface protection, Thermal cure, Top coating, Touch screen, UV coating, UV cure
IC Failure Analysis
The F3-sX is used throughout the chip making industry to measure backside thinning of silicon.
Failure Analysis, FA, Silicon, Si, Integrated circuit, IC, Polishing, Backside failure analysis, Silicon thinning
ITO & Other TCOs
Proprietary analysis algorithms allow one-click measurement of TCO thickness, index, and k.
Indium tin oxide, ITO, tin-doped indium oxide, Transparent conductive oxide, TCO, Display, Front contact, Transparent Electrode, LED, LCD, Solar, Fluorine-doped tin oxide, FTO, TEC, TEC glass, Aluminum zinc oxide, AZO, Aluminum-doped zinc oxide, Zinc oxide, iZO, Indium zinc oxide, IZO, zinc-doped indium oxide
Measure thickness of angioplasty balloons, stent and implant coatings, and many others.
Stents, drug-coated stents, Drug-coating, Balloons, Angioplasty, Parylene, Microfluidic device, Air gap, Catheter, Membranes
Measure thickness, index, and k of metal films up to 50nm thick.
Metallized, Metallization, Foils, Stents, Mirrors, Steel, Stainless Steel, Gold, Nickel, Aluminium, Silver, Cobalt, Zinc, Molybdenum, Titanium, Chrome, Chromium, Niobium, Tungsten, Gallium, Germanium
Measure thickness and index of NPB, AlQ3, PEDOT, P3HT, soluble Teflons, etc…
PLED, AMOLED, Hole Transport (HT), Hole Injection Layer (HIL), Host Materials, anode, cathode, Alq3, NPB, phenylene vinylene, carbazole, thiophene, aniline, styrenesulfonate, phthalocyanine, naphthalene, fluorene, lithium, silver, ITO, calcium
Use the F10-AR to measure reflectance and color, as well as AR and hardcoat layer thicknesses.
eyeglasses, HC, hardcoat, scratch resistant, AR, anti-reflection, reflectance, UV curable, hydrophillic, polycarbonate, high index, CR39, MR-6, MR-7, Trivex
Simply set your parylene-coated sample on the stage of the F3-CS to measure its thickness!
We’ve measured dozens of different resists, and can generate index files for any resist you use.
SU-8, resist, Photoresist, PR, AZ, AZP, ZEP, positive, negative, g-line, i-line, KrF, PMMA, FEP, GRX, KMPR
Measure thickness, porosity, refractive index, and k of your porous silicon films.
Filmetrics offers a full range of products for measuring semiconductor process films.
Refractive Index & k
Measure refractive index and extinction coefficient over wavelengths as wide as 190-1700nm.
n & k, complex, real , imaginary, refractive index, absorption, extinction coefficient, indices, Kramers-Kronig, optical dispersion, dielectric, Lorentz, Cauchy, photoresist, anomalous dispersion, path length
Silicon Wafers & Membranes
We offer tabletop, mapping, and production systems for measuring silicon up to 2mm thick.
Measure CdTe, CdS, CIGS, amorphous-Si, TCOs, anti-reflection (AR) layers, and more...
Copper indium gallium diselenide, CIGS, Cadmium telluride, CdTe, Cad tel,, Amorphous silicon, Amorphous Si, a-Si, Cadmium sulfide, CdS, window layer, buffer layer, Thin-film photovoltaic, Thin-film PV, TFPV, photovoltaics, Solar, Solar cells, Inline, In-situ, Roll-to-roll, R2R, Evaporation, Sputtering, CVD, MOCVD, PECVD, Transparent conductive oxide, TCO, Indium tin oxide, ITO, tin-doped indium oxide
Semiconductor Teaching Labs
More than fifty Filmetrics F20s have been delivered for use in university teaching labs.
Surface Roughness & Finish
3-dimensional surface profile measurements to characterize surface roughness.
Filmetrics systems are widely used in the polymer-films community to measure thickness in-line.
Roll to roll, Roll measurements, Roll systems, Rolling substrate, Roll fed, Roll web, Reel to reel , R2R, Web coater, Autoweb, In-line, In-line monitor, Online thickness, Line monitoring system, Precision measuring tools, Automatic, Feeding, Production, Multipoint, High speed