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Niobium (Nb) Sputtering Targets

Overview

Our comprehensive offering of sputtering targets, evaporation sources and other deposition materials is listed by material throughout the website. Below you will find budgetary pricing for sputtering targets and deposition materials per your requirements. Actual prices may vary due to market fluctuations. Contact international@lesker.com for current pricing or for a quote on sputtering targets and other deposition products not listed.


Specifications

Material TypeNiobium
SymbolNb
Atomic Weight92.90638
Atomic Number41
Color/AppearanceGray, Metallic
Thermal Conductivity54 W/m.K
Melting Point (°C)2,468
Coefficient of Thermal Expansion7.3 x 10-6/K
Z Ratio0.492
SputterDC
Max Power Density*
(Watts/Square Inch)
100
Type of BondIndium, Elastomer
CommentsAttacks W source.

* This is a recommendation based on our experience running these materials in KJLC guns. The ratings are based on unbonded targets and are material specific. Bonded targets should be run at lower powers to prevent bonding failures. Bonded targets should be run at 20 Watts/Square Inch or lower, depending on the material.


Z-Factors

Empirical Determination of Z-Factor

Unfortunately, Z Factor and Shear Modulus are not readily available for many materials. In this case, the Z-Factor can also be determined empirically using the following method:

  • Deposit material until Crystal Life is near 50%, or near the end of life, whichever is sooner.
  • Place a new substrate adjacent to the used quartz sensor.
  • Set QCM Density to the calibrated value; Tooling to 100%
  • Zero thickness
  • Deposit approximately 1000 to 5000 A of material on the substrate.
  • Use a profilometer or interferometer to measure the actual substrate film thickness.
  • Adjust the Z Factor of the instrument until the correct thickness reading is shown.

Another alternative is to change crystals frequently and ignore the error. The graph below shows the % Error in Rate/Thickness from using the wrong Z Factor. For a crystal with 90% life, the error is negligible for even large errors in the programmed versus actual Z Factor.


SDS
Click here for the Niobium SDS.
Product Datasheet
Click for a downloadable datasheet on the Niobium Nb Sputtering Targets.
Request A Quote
Can't find the size or material you need? Please use our Materials Quotation Form to request.
Deposition Materials FAQ
Click here for answers to some of the most common questions we get asked.
Contact Us
To speak with someone directly, please call 1-412-387-9200 or email international@lesker.com.

Ordering Table

Material Size Purity Compatible Guns Part # Price Add To
Cart
Material Size Purity Compatible Guns Part # Price Add To
Cart
Niobium 1.00" Dia. x 0.125" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX351A2 P.O.R.
Niobium 1.00" Dia. x 0.250" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX351A4 P.O.R.
Niobium 2.00" Dia. x 0.125" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX352A2 P.O.R.
Niobium 2.00" Dia. x 0.250" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX352A4 P.O.R.
Niobium 2.00" Dia. x 0.250" Thick 99.95% pure Ex Ta U.S. Gun EJTNBXX352K4 P.O.R.
Niobium 2.00" Dia. x 0.250" Thick 99.95% pure Ex Ta TORUS Mag Keeper 2 EJTNBXX352TK4 P.O.R.
Niobium 3.00" Dia. x 0.125" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX353A2 P.O.R.
Niobium 3.00" Dia. x 0.250" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX353A4 P.O.R.
Niobium 3.00" Dia. x 0.250" Thick 99.95% pure Ex Ta U.S. Gun EJTNBXX353K4 P.O.R.
Niobium 3.00" Dia. x 0.250" Thick 99.95% pure Ex Ta TORUS Mag Keeper 3 EJTNBXX353TK4 P.O.R.
Niobium 4.00" Dia. x 0.125" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX354A2 P.O.R.
Niobium 4.00" Dia. x 0.250" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX354A4 P.O.R.
Niobium 6.00" Dia. x 0.125" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX356A2 P.O.R.
Niobium 6.00" Dia. x 0.250" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX356A4 P.O.R.
Niobium 8.00" Dia. x 0.125" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX358A2 P.O.R.
Niobium 8.00" Dia. x 0.250" Thick 99.95% pure Ex Ta All Standard Guns EJTNBXX358A4 P.O.R.

 

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