Resistive vias in a substrate
OwnerTerry Provo, C. Michael Newtoninventors
Life of this patent
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Abstract
A rigid substrate board (105) having at least one layer with first (106) and second (107) opposing surfaces. At least one bore is formed in the layer and extending from the first surface (106) to the second surface (107). A resistive material is disposed within the bore and fills the bore to form a resistor (140). Further, a first conductor (115) is disposed on the first surface (106) to form an electrical connection with a first end of the resistor (140), and a second conductor (120) is disposed on the second surface to form an electrical connection with a second end of the resistor. A plurality of resistors (140) can be formed in the substrate layer (105) and interconnected to define a resistive network.
Claims20
A method for manufacturing resistors in a substrate, comprising the steps:
- forming at least one bore in a circuit board substrate layer having opposing first and second sides, said bore having a first opening in said first side of said substrate layer and a second opening in said second side of said substrate layer;
- filling said bore with a resistive material to form a resistor;
- and
- depositing a first conductor over said first opening and depositing a second conductor over said second opening, wherein said first conductor and said second conductor are in electrical contact with respective first and second ends of said resistor.
A circuit board substrate with integrated resistive components, comprising:
- a rigid substrate board having at least one layer with first and a second opposing surfaces;
- at least one bore formed in said layer and extending from said first surface to said second surface;
- a resistive material disposed within and filling said at least one bore to form a resistor;
- a first conductor disposed on said first surface and forming an electrical connection with a first end of said resistor, and a second conductor disposed on said second surface and forming an electrical connection with a second end of said resistor exposed at said second surface.
Dependencies are inferred from the claim text.