Method and device for heat dissipation in semiconductor modules
    5.
    发明专利
    Method and device for heat dissipation in semiconductor modules 有权
    用于半导体模块中散热的方法和装置

    公开(公告)号:JP2006196885A

    公开(公告)日:2006-07-27

    申请号:JP2005364561

    申请日:2005-12-19

    Inventor: POGGE H BERNHARD

    Abstract: PROBLEM TO BE SOLVED: To provide a device and a structure for attaching a heat dissipation chip to a device chip so as to have a path of high thermal conductivity. SOLUTION: A structure and method are provided for dissipating heat from a semiconductor device chip. A first layer of a dielectric material (e.g. polyimide) is formed on a front side of a heat spreader (typically Si). A plurality of openings are formed through this first layer. The openings are filled with metal (typically Cu), thereby forming metal studs extending through the first layer. A second layer of metal is formed on the backside of the device chip. The first layer and the second layer are then bonded in a bonding process, thereby forming a bonding layer, where the metal studs contact the second layer. The bonding layer thus provides a thermal conductive path from the chip to the heat spreader. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种用于将散热芯片附接到器件芯片的器件和结构,以具有高导热性的路径。 解决方案:提供了用于从半导体器件芯片散热的结构和方法。 介电材料(例如聚酰亚胺)的第一层形成在散热器(通常为Si)的前侧。 通过该第一层形成多个开口。 开口用金属(通常为Cu)填充,从而形成延伸穿过第一层的金属螺柱。 第二层金属形成在器件芯片的背面。 然后在接合工艺中接合第一层和第二层,从而形成接合层,其中金属柱与第二层接触。 因此,接合层提供从芯片到散热器的导热路径。 版权所有(C)2006,JPO&NCIPI

    PRECISION ALIGNING METHOD FOR CHIP FOR MOUNTING ON BOARD

    公开(公告)号:JP2000299428A

    公开(公告)日:2000-10-24

    申请号:JP2000075124

    申请日:2000-03-17

    Applicant: IBM

    Inventor: POGGE H BERNHARD

    Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a module that has a chip mounted on a carrier board, with the use of a guide board which can be penetrated by ablation radiation. SOLUTION: A removable layer 37 is provided on a surface of a guide board 35. A first alignment guide 36 is formed on the removable layer, and a second alignment guide 21 is formed on the front side surface of a chip 30. By bringing the second alignment guide 21 into contact with the first alignment guide, the chip is aligned with the guide board. Then the chip 30 is mounted on the guide board 35. A carrier board 52 is mounted on a rear side surface of the chip. Then, using radiation which penetrates the guide board (generally laser radiation), an interface between the removable layer 37 and the guide board 35 is melted and removed, so that the guide board 35 is cut off. Then a thin film provided with metallic interconnection is provided on the front side surface of the chip.

    METHOD FOR FORMING ISOLATED REGIONS OF SILICON

    公开(公告)号:CA1097826A

    公开(公告)日:1981-03-17

    申请号:CA305231

    申请日:1978-06-12

    Applicant: IBM

    Abstract: METHOD FOR FORMING ISOLATED REGIONS OF SILICON A method for isolating regions of silicon involving the formation of openings that have a suitable taper in a block of silicon, thermally oxidizing the surfaces of the openings, and filling the openings with a dielectric material to isolate regions of silicon within the silicon block. The method is particularly useful wherein the openings are made through a region of silicon having a layer of a high doping conductivity.

    METHOD FOR FORMING ISOLATED REGIONS OF SILICON

    公开(公告)号:CA1108772A

    公开(公告)日:1981-09-08

    申请号:CA355850

    申请日:1980-07-09

    Applicant: IBM

    Abstract: METHOD FOR FORMING ISOLATED REGIONS OF SILICON A method for isolating regions of silicon involving the formation of openings that have a suitable taper in a block of silicon, thermally oxidizing the surfaces of the openings, and filling the openings with a dielectric material to isolate regions of silicon within the silicon block. The method is particularly useful wherein the openings are made through a region of silicon having a layer of a high doping conductivity.

    TOTAL DIELECTRIC ISOLATION
    10.
    发明专利

    公开(公告)号:CA1092252A

    公开(公告)日:1980-12-23

    申请号:CA297585

    申请日:1978-02-23

    Applicant: IBM

    Inventor: POGGE H BERNHARD

    Abstract: TOTAL DIELECTRIC ISOLATION A process which utilizes an anodized porous silicon technique to form dielectric isolation on one side of a semiconductor device is described. Regions of silicon semiconductor are fully isolated from one another by this technique. The starting water typically is predominently P with a P+ layer thereon. A P or N layer over the P+ layer is formed thereover such as by epitaxial growth. The surface of the silicon is oxidized and a photoresist layer applied thereto. Openings are formed in the photoresist. Openings are formed in the silicon dioxide using the photoresist as a mask and appropriate etching techniques. The openings in the silicon dioxide define the regions to be etched by reactive ion etching. Reactive ion etching is accomplished at least down to the P+ region. The structure is then subjected to the anodic etching technique which preferentially attacks the P+ layer to form porous silicon throughout the P+ layer. The structure is then placed in a thermal oxidation ambient until the porous silicon layer has been fully oxidized to silicon dioxide. The openings through the surface layer are filled up with oxide to fully isolate the P or N surface layer.

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