Endoscope device

An endoscope device comprising:

• an imaging unit comprising:
• a semiconductor chip including an image sensor formed thereon;
• and
• a protective glass adhered on the image sensor with an adhesive layer;
• and
• a holder configured to hold the imaging unit by fitting the protective glass therein,
• wherein the semiconductor chip comprises:
• a light-receiving section configured to generate an image signal by performing photoelectric conversion of light;
• a peripheral circuit section configured to receive the image signal from the light-receiving unit and transmit a driving signal to the light-receiving unit;
• a guard ring surrounding the light-receiving section and the peripheral circuit section;
• and
• a plurality of metal dots formed on an outer circumference of the guard ring,
• wherein the protective glass is adhered to the semiconductor chip by the adhesive layer so as to cover the light-receiving section, the peripheral circuit section, the guard ring, and the metal dots, and
• wherein the metal dots are formed at a same interval from the outer circumference of the guard ring to a connection end portion of a connecting surface between the semiconductor chip and the protective glass.