US4416724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing insulator surfaces
Assignee: GSI Helmholtzzentrum für Schwerionenforschung GmbH
•
Filing: 1981-12-09
•
Granted: 1983-11-22
•
Expires: 2001-12-09
Abstract
Abstract A method for producing insulator surfaces by increasing the surface area of a solid body presenting such surface, which method is carried out by uniformly bombarding the surface of the body with a collimated beam of ions generating latent nuclear tracks in the surface, and etching the bombarded surface to widen the nuclear tracks into adjacent, individual etched channels at least some of which contact one another.
Inventors
- 👤 Bernd Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:07
CPC Classifications
H; H01; H01B; H01B19/00; H01B19/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
A method for producing insulator surfaces by increasing the surface area of a solid body constituting an electrical insulator and presenting such surface, comprising uniformly bombarding the surface of the body with a collimated beam of ions having a density of 10 6 -10 9 ions/cm 2 generating latent nuclear tracks in the surface, and etching the bombarded surface to widen the nuclear tracks into adjacent, individual etched channels in a manner to cause the number of channels multiplied by the surface area of an individual channel and divided by the total non-etched surface to be approximately equal to 1.
Claim 2
Independent Claim
100 words
A method for producing insulator surfaces by increasing the surface area of a solid body constituting an electrical insulator and presenting such surface, comprising uniformly bombarding the surface of the body with a collimated beam of ions having a density of 10 6 -10 9 ions/cm 2 generating latent nuclear tracks in the surface, and etching the bombarded surface to widen the nuclear tracks into adjacent, individual etched channels in a manner to cause the number of channels multiplied by the surface area of an individual channel and divided by the total non-etched surface to be approximately equal to 1.
Claim 3
Dependent Claim
44 words
A method as defined by claim 1, wherein the beam comprises heavy ions and said step of bombarding is carried out on the basis of the composition of the body to produce latent nuclear track channels of a depth of the order of 10μ.
Claim 4
Dependent Claim
14 words
A method as defined by claim 1, wherein the solid body is a foil.
Claim 5
Independent Claim
44 words
A method of increasing the electrical resistance of an insulator body comprising the steps of ionically bombarding substantially the entire surface of a separate insulating sheet, etching the bombarded surface, and enveloping the insulator in said sheet while retaining the shape of the insulator.
Claim 6
Independent Claim
44 words
A method of increasing the electrical resistance of an insulator body comprising the steps of ionically bombarding substantially the entire surface of a separate insulating sheet, etching the bombarded surface, and enveloping the insulator in said sheet while retaining the shape of the insulator.
References Cited (Backward Citations)
US4268347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |