IMAGE PICKUP UNIT FOR ENDOSCOPE
First Claim
1. An image pickup unit for endoscope, comprising an image pickup device including on a front face thereof a plurality of electrode pads aligned along one side face of the image pickup device, and a circuit substrate having an end face from which a lead group is extended, a distal end portion of the lead group being bonded to the plurality of electrode pads,wherein the end face of the circuit substrate is disposed more rearward than a rear face of the image pickup device,the lead group includes a first lead constituted of at least one of a lead connected to an image pickup device reference electric potential and a dummy lead which does not include an electrical function, and another second lead, anda shortest distance between the first lead and an edge portion where the rear face and the side face of the image pickup device intersect is shorter than a shortest distance between the second lead and the edge portion.
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Accused Products
Abstract
An image pickup unit for endoscope of the invention includes: an image pickup device including on a front face a plurality of electrode pads aligned along one side face; and a circuit substrate having an end face from which a lead group, a distal end portion of which is bonded to the plurality of electrode pads, is extended, wherein the end face of the circuit substrate is disposed more rearward than a rear face of the image pickup device, the lead group includes a first lead constituted of at least one of a lead connected to an image pickup device reference electric potential and a dummy lead which does not include an electrical function, and another second lead, and the first lead is closer to the edge portion where the rear face and the side face of the image pickup device intersect than the second lead is.
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Citations
8 Claims
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1. An image pickup unit for endoscope, comprising an image pickup device including on a front face thereof a plurality of electrode pads aligned along one side face of the image pickup device, and a circuit substrate having an end face from which a lead group is extended, a distal end portion of the lead group being bonded to the plurality of electrode pads,
wherein the end face of the circuit substrate is disposed more rearward than a rear face of the image pickup device, the lead group includes a first lead constituted of at least one of a lead connected to an image pickup device reference electric potential and a dummy lead which does not include an electrical function, and another second lead, and a shortest distance between the first lead and an edge portion where the rear face and the side face of the image pickup device intersect is shorter than a shortest distance between the second lead and the edge portion.
Specification