SEMICONDUCTOR PACKAGE PROVIDED WITH SUPPORT CHIP FOR BUFFER CIRCUIT

    公开(公告)号:JPH1041458A

    公开(公告)日:1998-02-13

    申请号:JP5901397

    申请日:1997-03-13

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide an ESD(electrostatic discharge) protection circuit and other buffer circuits such as decoupling capacitors, drivers and receivers, without occupying large areas on a core integrated circuit chip. SOLUTION: A package is composed of a complementary metal oxide semiconductor(CMOS) core integrated circuit ship 20, a support ship 22 and a lead 34 for external connection. The support ship 22 is provided with an ESD protection circuit and lead buffer circuits such as a decoupling capacitor, a driver and a receiver, for electrical connection with the core integrated circuit chip 20 and the leas 34. The yield and performance of a core integrated ship are improved by shifting the lead buffer circuits from the core ship and providing them on other support chips.

    STRUCTURE OF PRECISION CIRCUIT ELEMENT AND METHOD OF FORMING IT

    公开(公告)号:JP2001308280A

    公开(公告)日:2001-11-02

    申请号:JP2001070049

    申请日:2001-03-13

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a precision circuit element and a method of forming it. SOLUTION: The circuit element is formed as one part of an integrated circuit assembly. The process of the circuit element provides a nominal value of the circuit element that is near to a desired value. An additional trim circuit element is coupled through a link to the nominal circuit element. The Link is a fusible link or an anti fuse. By fusing and cutting the fusible link selectively or by adding or reducing the trim circuit element by fusing the anti fuse, the nominal value of the circuit element is individuated. In a typical example, a capacitor is used.

    TRANSISTOR STRUCTURE AND MANUFACTURE THEREOF

    公开(公告)号:JPH11330384A

    公开(公告)日:1999-11-30

    申请号:JP20197998

    申请日:1998-07-16

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To enhance a CMOS device in latch up resistance, by a method wherein a side wall spacer/trough region is demarcated and formed by the use of hybrid photoresist which shows a positive-type, a negative type and an intermediate-type reaction to exposure light. SOLUTION: A gate oxide layer 2404 and a gate material layer 2406 are successively deposited on a wafer 2500, and side wall spacer troughs 2801 and 2802 are provided to the gate oxide layer 2404 and the gate material layer 2406 by the use of hybrid photoresist which shows a positive-type, a negative- type, and an intermediate-type reaction to exposure light. Three regions, a gate region 2804, a high source region 2806, and a high drain region 2808 are provided to the side wall spacer troughs 2801 and 2802, and a residual negative- type pattern 2526 and a residual hard mask layer 2408 are formed. By this setup, a CMOS device can be improved in latch-up resistance.

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