Using etch resist patterns and formation for facilitation of laser cutting, particle and leakage current reduction
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United States of America Patent
Stats
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Dec 26, 2017
Issued Date -
N/A
app pub date -
May 27, 2016
filing date -
May 27, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process for creating an anode foil for use in an electrolytic capacitor of an implantable cardioverter defibrillator is provided. The process includes placing a partially masked bulk metal foil in an etch electrolyte solution to etch exposed area of the bulk metal foil, removing the etch-resistant mask to expose the unetched areas, widening the bulk metal foil, and partially cutting the bulk metal foil between a plurality of unetched areas to form a partially detached etched foil anode, such that the unetched areas are not cut and the unetched areas serve as attachment tabs to keep the partially detached etched foil anode attached to the bulk metal foil. Additionally, the process may include an oxide formation step, wherein the step of partially cutting the bulk metal foil is performed after the etching and widening steps, and before the oxide formation step.
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International Classification(s)
- 2016 Application Filing Year
- A61N Class
- 3489 Applications Filed
- 2604 Patents Issued To-Date
- 74.64 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 5 Citation Count
- A61N Class
- 15.51 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 26, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 26, 2029 |
