SOLID IMAGE PICKUP DEVICE AND ITS MANUFACTURE

摘要: PROBLEM TO BE SOLVED: To reduce the number of manufacturing steps a solid image pickup device having an unrequired electric charge discharging part. SOLUTION: This comprises, P-type well layer formed on main surface N type semiconductor substrate, potential barrier part 11A disposed reverse side to vertical transfer adjacent 5A channel 15A horizontal composed region and part, accumulation 6A region, charges discharge in 12A The are concurrently set at same impurity concentration.