Invention Grant
- Patent Title: Method of manufacturing an ultrasonic transducer semiconductor device
- Patent Title (中): 制造超声波换能器半导体器件的方法
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Application No.: US12999478Application Date: 2009-06-05
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Publication No.: US08119426B2Publication Date: 2012-02-21
- Inventor: Takashi Kobayashi , Shuntaro Machida , Kunio Hashiba
- Applicant: Takashi Kobayashi , Shuntaro Machida , Kunio Hashiba
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Miles & Stockbridge P.C.
- Priority: JP2008-157453 20080617
- International Application: PCT/JP2009/060377 WO 20090605
- International Announcement: WO2009/154091 WO 20091223
- Main IPC: H01L21/66
- IPC: H01L21/66 ; H01L21/00

Abstract:
A manufacturing yield of a semiconductor device (capacitive micromachined ultrasonic transducer) is increased. A plurality of first chips 1 in which a plurality of cells each having functions of transmitting and receiving ultrasonic waves are formed on a front surface of a first semiconductor wafer are manufactured, and each of the first chips 1 is judged as a superior/inferior product, and then, the first semiconductor wafer is sigulated into a plurality of first chips 1. Next, a plurality of second chips 2 in which a wiring layer is formed on a front surface of a second semiconductor wafer are manufactured, and each of the second chips 2 is judged as a superior/inferior product, and then, the second semiconductor wafer is sigulated into a plurality of second chips 2. Next, the plurality of first chips 1 judged as the superior product are adjacently arranged on the front surface of the second chip 2 judged as the superior product in plane in a Y direction so that lower electrodes 5 of the adjacent first chips 1 are electrically connected with each other via a through electrode 6, a bump 8, and a wiring layer 7.
Public/Granted literature
- US20110086443A1 METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE Public/Granted day:2011-04-14
Information query
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