Invention Grant
US08173500B2 Poly-emitter type bipolar junction transistor, bipolar CMOS DMOS device, and manufacturing methods of poly-emitter type bipolar junction transistor and bipolar CMOS DMOS device
有权
多发射极型双极结型晶体管,双极CMOS DMOS器件,以及多晶硅型双极结型晶体管和双极CMOS DMOS器件的制造方法
- Patent Title: Poly-emitter type bipolar junction transistor, bipolar CMOS DMOS device, and manufacturing methods of poly-emitter type bipolar junction transistor and bipolar CMOS DMOS device
- Patent Title (中): 多发射极型双极结型晶体管,双极CMOS DMOS器件,以及多晶硅型双极结型晶体管和双极CMOS DMOS器件的制造方法
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Application No.: US12546259Application Date: 2009-08-24
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Publication No.: US08173500B2Publication Date: 2012-05-08
- Inventor: Bon-Keun Jun
- Applicant: Bon-Keun Jun
- Applicant Address: KR Seoul
- Assignee: Dongbu HiTek Co., Ltd.
- Current Assignee: Dongbu HiTek Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Sherr & Vaughn, PLLC
- Priority: KR10-2008-0086324 20080902
- Main IPC: H01L21/8238
- IPC: H01L21/8238

Abstract:
A poly-emitter type bipolar transistor includes a buried layer formed over an upper portion of a semiconductor substrate, an epitaxial layer formed on the semiconductor substrate, a collector area formed on the epitaxial layer and connected to the buried layer, a base area formed at a part of an upper portion of the epitaxial layer, and a poly-emitter area formed on a surface of the semiconductor substrate in the base area and including a polysilicon material. A BCD device includes a poly-emitter type bipolar transistor having a poly-emitter area including a polysilicon material and at least one of a CMOS and a DMOS formed on a single wafer together with the poly-emitter type bipolar transistor.
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