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US 5,703,744 AGranted
Circuit substrate including anodization control means
AssigneeSharp Kabushiki Kaisha
InventorAkihito Jinda
Life of this patent
Estimating the term…
Abstract
A circuit substrate includes a plurality of semiconductor devices including electrodes, a wiring having a plurality of branched portions and mainly formed of a metal material, a terminal for applying a voltage to the wiring to anodize the branched portions, and an anodization controller for controlling degrees of anodization of the branched portions. The branched portions serve as the electrodes of the semiconductor devices. The terminal is connected to the wiring.
Claims16
A circuit substrate comprising:
- a wiring mainly formed of a metal material, the wiring having an end portion used as a electrode;
- a terminal for applying a voltage to the wiring to anodize the wiring, the terminal being connected to another end portion of the wiring;
- and
- an anodization control portion for controlling a degree of anodization of the wiring, the anodization control portion being a portion of the wiring which is closer to the another end portion connected to the terminal than to the end portion serving as the electrode,
- wherein the anodization control portion is anodized by the voltage applied by the terminal to form an insulator, and
- wherein at least one of either a width or a thickness of the anodization control portion is determined so that an anodization film having a predetermined thickness is formed on the surface of the end portion of the wiring when the anodization of the anodization control portion is completed.
3 more elements
A circuit substrate comprising:
- a plurality of semiconductor devices including electrodes;
- a wiring having a plurality of branched portions and mainly formed of a metal material, the branched portions serving as the electrodes of the semiconductor devices;
- a terminal for applying a voltage to the wiring to anodize the branched portions, the terminal being connected to the wiring;
- and
- at least one anodization controlling portion for controlling degrees of anodization of the branched portions,
- wherein at least one of either a width or a thickness of the at least one anodization controlling portion is determined so that an anodization film having a predetermined thickness is formed on each of the branched portions.
3 more elements
Dependencies are inferred from the claim text.