发明名称 Method of fabricating heterojunction photodiodes with CMOS
摘要 An epitaxial device module monolithically integrated with a CMOS structure in a bulk or thick-film SOI substrate, comprising an active area on which epitaxial layers are formed by selective or non-selective epitaxial growth and a separate active area in which the CMOS structure is formed. A hard mask for epitaxy having an opening therein provides self-alignment for optional ion implants into the substrate. The ion-implanted region overlaps the active region underneath the epitaxial layer, a portion of the source/drain region of the CMOS structure and the isolation region separating the two active areas, thereby establishing a conductive path underneath the isolation region between the two active areas.
申请公布号 US8816443(B2) 申请公布日期 2014.08.26
申请号 US200711781544 申请日期 2007.07.23
申请人 Quantum Semiconductor LLC 发明人 Augusto Carlos J. R. P.;Forester Lynn
分类号 H01L27/088 主分类号 H01L27/088
代理机构 Sturm & Fix LLP 代理人 Sturm & Fix LLP
主权项 1. An epitaxial device module monolithically integrated with a CMOS structure, either a NMOS or a PMOS, in a bulk or thick-film SOI substrate, comprising an active area on which an epitaxial layer stack is formed by selective or non-selective epitaxial growth, that is separate from a separate active area in which said CMOS structure is formed, single-crystalline epitaxial layer stack formed on a hard mask for epitaxy having an opening therein, localized ion implanted regions in said active area, with the same polarity of the source/drain regions of said CMOS structure, aligned with said opening in hard mask for epitaxy, thus self-aligned with said epitaxial layer stack, and formed before and/or after the epitaxial growth, an ion-implanted region of the same polarity of the source/drain regions of said CMOS structure, which overlaps the active area underneath the single-crystalline epitaxial layer stacks, a portion of the source/drain region of said CMOS structure, and an isolation region separating said two active areas, thereby establishing a conductive path underneath a portion of isolation region between said two active areas, wherein each of said localized ion implanted regions has lateral boundaries that are distant from the isolation region delimiting the active area on which epitaxial layer stack is grown.
地址 San Jose CA US