Invention Grant
US07704871B2 Integration of thin film resistors having different TCRs into single die
有权
将具有不同TCR的薄膜电阻器集成到单个管芯中
- Patent Title: Integration of thin film resistors having different TCRs into single die
- Patent Title (中): 将具有不同TCR的薄膜电阻器集成到单个管芯中
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Application No.: US12016313Application Date: 2008-01-18
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Publication No.: US07704871B2Publication Date: 2010-04-27
- Inventor: Eric W Beach
- Applicant: Eric W Beach
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Warren L. Franz; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H01L21/4763
- IPC: H01L21/4763

Abstract:
An integrated circuit structure including multiple thin film resistors having different sheet resistances and TCRs includes a first oxide layer (2) formed on a semiconductor substrate (1), a first thin film resistor (3) disposed on the first oxide layer (2), and a second oxide layer (14) disposed over the first oxide layer (2) and first thin film resistor (3). A second thin film resistor (15) is formed on the second oxide layer (14) and a third oxide layer (16) is formed over the second thin film resistor (15) and the second oxide layer (14). Interconnect metallization elements (12A,B & 22A,B) disposed on at least one of the second (14) and third (16) oxide layers electrically contact the circuit element (4), terminals of the first thin film resistor (3), and terminals of the second thin film resistor (15), respectively, through corresponding contact openings through at least one of the second (14) and third (16) oxide layers.
Public/Granted literature
- US20080132056A1 INTEGRATION OF THIN FILM RESISTORS HAVING DIFFERENT TCRs INTO SINGLE DIE Public/Granted day:2008-06-05
Information query
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