公开(公告)号：US20140231960A1

公开(公告)日：2014-08-21

申请号：US13767930

申请日：2013-02-15

Applicant: GLOBALFOUNDRIES INC.

Inventor： Nam Sung Kim ,  Roderick M. Miller ,  Shesh M. Pandey ,  Jagar Singh

IPC: H01L49/02

CPC classification number: H01L28/20

Abstract: Aspects of the present invention relate to an approach for implanting and forming a polysilicon resistor with a single implant dose. Specifically, a mask having a set of openings is formed over a resistor surface. The set of openings are typically formed in a column-row arrangement according to a predetermined pattern. Forming the mask in this manner allows the resistor surface to have multiple regions/zones. A first region is defined by the set of openings in the mask, and a second region is defined by the remaining portions of the mask. The resistor is then subjected to a single implant dose via the openings. Implanting the resistor in this manner allows the resistor to have multiple resistance values (i.e., a first resistance value in the first region, and a second resistance value in the second region).

Abstract translation: 本发明的各方面涉及用单一注入剂量植入和形成多晶硅电阻器的方法。 具体地，在电阻表面上形成具有一组开口的掩模。 一组开口通常根据预定图案以列排布置形成。 以这种方式形成掩模允许电阻器表面具有多个区域/区域。 第一区域由掩模中的开口组限定，第二区域由掩模的其余部分限定。 然后通过开口对电阻器进行单次注入剂量。 以这种方式植入电阻器，电阻器具有多个电阻值（即，第一区域中的第一电阻值，以及第二区域中的第二电阻值）。