公开(公告)号：JPH11121732A

公开(公告)日：1999-04-30

申请号：JP23408898

申请日：1998-08-20

Applicant: IBM

Inventor： HOOK TERENCE B ,  JEFFREY B JOHNSON ,  HON-SAM P WON C GREATBRITAIN

IPC: H01L27/146 ,  H01L31/0352 ,  H01L31/10 ,  H01L31/14

Abstract: PROBLEM TO BE SOLVED: To provide an active picture element cell element for video imaging, wherein the size of a picture element cell is reduced. SOLUTION: A complementary active picture element sensor cell 20 and the method for forming and using the cell are provided. The complementary active picture element sensor cell 20 approximately doubles the effective signal for the specified optimum quantum. This element 20 uses the holes generated by collided photons in the complementary active picture element sensor cell 20. Two active picture element sensor cell circuits, that is to say, an NFET circuit and a complementary PFET circuit are formed and used together with a photodiode 22. The NFET circuit captures electron current. The PFET circuit captures hole current. The sum of the current is about twice the current in the case of the conventional active picture element sensor circuit using the region of the photodiode of the similar size.