LOW-TEMPERATURE REFLOW DIELECTRIC BPSG FLUORIDE

    公开(公告)号:JPH11288930A

    公开(公告)日:1999-10-19

    申请号:JP1271499

    申请日:1999-01-21

    Abstract: PROBLEM TO BE SOLVED: To improve gap-filling characteristics by performing the reaction and adhesion of an F-BPSG layer under specific ranges of pressure and temperature by the mixture of a reduced pressure chemical vapor growth process and the reactants of TEOS and FTES. SOLUTION: Orthotetraethyl silicate(TEOS), fluoroalkoxysilane(FTES) containing fluorine, boron and phosphor dopants, and an oxygen supply source are mixed with each another for reaction at a temperature of approximately 650-850 deg., under a pressure of approximately 0.5-5 torr in a chamber. Then, a fluorine dope BPSG layer (borophospho-silicate-glass) 22 that is generated by a reaction is allowed to adhere onto a semiconductor substrate 11 which is arranged in the chamber. Then, a layered semiconductor element is subjected to reflow at a temperature that is lower than approximately 800 deg.C, thus flattening the adhering layer and as a result filling the opening of a wafer 10 with a large aspect ratio and a small gap with the same adhesion/annealing temperature and the same dopant concentration of boron and phosphor.

    Dreidimensionale (3D) integrierte Schaltung mit verbessertem Kupfer-Kupfer-Bonding

    公开(公告)号:DE102012219171A1

    公开(公告)日:2013-05-08

    申请号:DE102012219171

    申请日:2012-10-22

    Applicant: IBM

    Inventor: NGUYEN SON V

    Abstract: Mindestens eine metallische Adhäsionsschicht wird auf mindestens einer Cu-Fläche eines ersten Bauelement-Wafers gebildet. Ein zweiter Bauelement-Wafer mit einer weiteren Cu-Fläche wird über der Cu-Fläche des ersten Bauelement-Wafers und auf der mindestens einen metallischen Adhäsionsschicht positioniert. Der erste und der zweite Bauelement-Wafer werden dann zusammengebondet. Das Bonden beinhaltet das Erwärmen der Bauelement-Wafer auf eine Temperatur von weniger als 400°C mit oder ohne Anwendung eines äußerlich angewandten Drucks. Während des Erwärmens werden die beiden Cu-Flächen zusammengebondet und die mindestens eine metallische Adhäsionsschicht erhält Sauerstoffatome von den beiden Cu-Flächen und bildet mindestens eine Metalloxid-Bondschicht zwischen den Cu-Flächen.

    HIGH DENSITY VERTICALLY STRUCTURED MEMORY

    公开(公告)号:CA1277031C

    公开(公告)日:1990-11-27

    申请号:CA534688

    申请日:1987-04-14

    Applicant: IBM

    Abstract: HIGH DENSITY VERTICALLY STRUCTURED MEMORY A dynamic random access memory is provided wherein each cell has a storage capacitor and switching device and a bit/sense line or plate located along a sidewall of a trench formed in a semiconductor substrate. In a more particular structure of the cell, the trench width defines the length of the switching device, with the storage capacitor and a highly conductive bit/sense line being formed along opposite sidewalls of the trench. In an array of such cells, the highly conductive bit/sense line or plate interconnecting a large number of the cells of the array extends continuously from cell to cell within the trench at a sidewall thereof. Likewise, the storage capacitors of these many cells have a highly conductive common plate extending continuously within the trench at the opposite sidewall. BU-9-85-004

    9.
    发明专利
    未知

    公开(公告)号:DE69832035T2

    公开(公告)日:2006-07-13

    申请号:DE69832035

    申请日:1998-12-07

    Abstract: An apparatus and method are provided for forming a fluorine doped borophosphosilicate (F-BPSG) glass on a semiconductor device using a low pressure chemical vapor deposition process. The F-BPSG glass exhibits a substantially void-free and particle-free layer on the substrate for structures having gaps as narrow as 0.10 microns and with aspect ratios of 6:1. The reactant gases include sources of boron and phosphorous dopants, oxygen and a mixture of TEOS and FTES. Using a mixture of TEOS and FTES in a low pressure CVD process provides a F-BPSG layer having the above enhanced characteristics. Preferably the glass deposition is performed at a temperature of about 750-850 DEG C and a pressure of 1 to 3 torr to provide for in situ reflow of the F-BPSG during the deposition process. An anneal is also preferred under similar conditions in the same chemical vapor deposition chamber to further planarize the F-BPSG surface.

    10.
    发明专利
    未知

    公开(公告)号:DE69832035D1

    公开(公告)日:2005-12-01

    申请号:DE69832035

    申请日:1998-12-07

    Abstract: An apparatus and method are provided for forming a fluorine doped borophosphosilicate (F-BPSG) glass on a semiconductor device using a low pressure chemical vapor deposition process. The F-BPSG glass exhibits a substantially void-free and particle-free layer on the substrate for structures having gaps as narrow as 0.10 microns and with aspect ratios of 6:1. The reactant gases include sources of boron and phosphorous dopants, oxygen and a mixture of TEOS and FTES. Using a mixture of TEOS and FTES in a low pressure CVD process provides a F-BPSG layer having the above enhanced characteristics. Preferably the glass deposition is performed at a temperature of about 750-850 DEG C and a pressure of 1 to 3 torr to provide for in situ reflow of the F-BPSG during the deposition process. An anneal is also preferred under similar conditions in the same chemical vapor deposition chamber to further planarize the F-BPSG surface.

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