Proximity Sensor with Connection Hole, and Method for Manufacturing the Same
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Abstract
The present disclosure relates to a capacitive sensor film (50) for mounting to a body, said film comprising a backing layer (2) having, on one side, a rear major surface (2a) facing, in use, the body and, on the other side, a front major surface (2b), said rear major surface (2a) bearing a guard conductor (1) and said front major surface (2b) bearing a sensor conductor (7), and at least on through-going hole (10) extending through the backing layer to enable electrical contact to be made to one of the conductors from the respectively opposite side of the film, wherein the inner wall of the through-going hole is covered, at least partly, by an electrically-insulating film (11).
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Citations
40 Claims
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1-20. -20. (canceled)
- 21. A capacitive sensor film for mounting to a body, comprising a dielectric backing layer having a rear major surface facing, in use, the body and, on the other side, a front major surface, said rear major surface bearing a guard conductor and said front major surface bearing a sensor conductor, and at least one through-going hole defined by an inner wall extending through the backing layer, wherein the inner wall of the through-going hole is covered, at least partly, by an electrically-insulating film.
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39. Method of manufacturing a capacitive sensor film comprising
(i) providing a backing layer comprising a rear major surface and a front major surface, (ii) applying a guard conductor to the rear major surface of the backing layer, (iii) applying a sensor conductor to the front major surface of the backing layer, and (iv) providing one or more through-going hole or holes extending through the backing layer so that the guard conductor, the sensor conductor and optionally the superguard conductor can be electrically contacted from one major surface of the laminate.
Specification