Large area optical quality synthetic polycrystalline diamond window
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 1, 2017
Grant Date -
Nov 27, 2014
app pub date -
Dec 13, 2012
filing date -
Dec 16, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A polycrystalline chemical vapour deposited (CVD) diamond wafer comprising: a largest linear dimension equal to or greater than 70 mm; a thickness equal to or greater than 1.3 mm; and one or both of the following characteristics measured at room temperature (nominally 298 K) over at least a central area of the polycrystalline CVD diamond wafer, said central area being circular, centred on a central point of the polycrystalline CVD diamond wafer, and having a diameter of at least 70% of the largest linear dimension of the polycrystalline CVD diamond wafer: an absorption coefficient ≦0.2 cm−1 at 10.6 μm; and a dielectric loss coefficient at 145 GHz, of tan δ≦2×10−4.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- C23C Class
- 1946 Applications Filed
- 1591 Patents Issued To-Date
- 81.76 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- C23C Class
- 27.20 % this patent is cited more than
- 8 Age
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