CERAMIC CIRCUIT BOARD AND METHOD OF MANUFACTURE THEREOF
    245.
    发明公开
    CERAMIC CIRCUIT BOARD AND METHOD OF MANUFACTURE THEREOF 审中-公开
    VERFAHREN ZU DEREN HERSTELLUNG的KERAMISCHE LEITERPLATTE

    公开(公告)号:EP1100298A1

    公开(公告)日:2001-05-16

    申请号:EP00917296.6

    申请日:2000-04-12

    Abstract: A method of manufacturing a ceramic board includes two process steps; applying a first conductor paste in a recess occurred in each via-hole of the ceramic substrate after conductor materials are filled in the via-holes and fired, and forming a surface circuit by printing a second conductor paste for forming the surface circuit. A viscosity of the first conductor paste is lower than that of the second conductor paste. With the prevent invention, there is good conduction between the surface circuit and the conductor in each via-hole, and further a printing pattern of the surface circuit around each via-hole has high accuracy. As a result, the highly reliable ceramic circuit board, which is adequate to a high-density circuit, can be provided.

    Abstract translation: 制造陶瓷板的方法包括两个工艺步骤: 在将导体材料填充到通孔中之后,在陶瓷基板的每个通孔中施加第一导体膏在凹部中发生烧结,并通过印刷用于形成表面电路的第二导体糊形成表面电路。 第一导体糊的粘度低于第二导体糊的粘度。 通过防止发明,每个通孔中的表面电路和导体之间具有良好的导通性,并且每个通孔周围的表面电路的印刷图案也具有高精度。 结果,可以提供足够高密度电路的高度可靠的陶瓷电路板。

    A method for forming a solder ball
    246.
    发明公开
    A method for forming a solder ball 审中-公开
    Verfahren zum Anbringen vonLötkugeln

    公开(公告)号:EP1081990A2

    公开(公告)日:2001-03-07

    申请号:EP00250275.5

    申请日:2000-08-11

    Abstract: This invention provides screen printing for forming a higher solder ball (bump). In first printing step, a first solder layer is printed. After drying in drying step, a second solder layer is printed on the first solder layer in second printing step. Then, in re-flow processing step, re-flow processing is performed, and the first solder layer and the second solder layer are melted. Finally, the melted layer is solidified in a ball shape to form the solder ball (bump). Since solder paste is printed in layers, an amount of the solder paste can be increased. Hence, a higher solder ball (bump) can be formed.

    Abstract translation: 本发明提供了用于形成较高焊球(凸块)的丝网印刷。 在第一印刷步骤中,印刷第一焊料层。 在干燥步骤中干燥后,在第二印刷步骤中将第二焊料层印刷在第一焊料层上。 然后,在再流程处理工序中,进行再流程处理,第一焊料层和第二焊料层熔融。 最后,将熔融层固化成球状,形成焊球(凸块)。 由于焊膏被分层印刷,所以可以增加焊膏的量。 因此,可以形成更高的焊球(凸起)。

    Method of multiplexed joining of solder bumps to a substrate during assembly of an integrated circuit package
    248.
    发明公开
    Method of multiplexed joining of solder bumps to a substrate during assembly of an integrated circuit package 失效
    在组装集成电路封装期间将焊料凸块多路连接到基板的方法

    公开(公告)号:EP0852395A3

    公开(公告)日:1998-07-15

    申请号:EP97122631.1

    申请日:1997-12-22

    Applicant: MOTOROLA, INC.

    Abstract: Multiplexed joining of solder bumps to various substrates for assembly of an integrated circuit package includes placing a semiconductor substrate (312) having solder bump structures (314) in contact with a ceramic substrate (320 having chip pads (322, 334), and placing this structure in contact with ball grid array spheres (352) in order to form a CBGA (360) in a single flow process. The method includes the steps of providing a semiconductor device having at least one first interconnect structure connected to a surface of the semiconductor device (501), and a substrate having a plurality of metallized pads (503); placing an at least one second interconnect structure in aligned contact with one or more of the plurality of metallized pads (505); placing the at least one first interconnect structure in aligned contact with one or more of the plurality of metallized pads (507); and simultaneously reflowing the at least one first interconnect structure and the at least one second interconnect structure such that the semiconductor device and at least one second interconnect structure are connected to the metallized pads of the substrate (509).

    Abstract translation: 将焊料凸块多路连接到用于组装集成电路封装的各种基板包括将具有焊料凸块结构(314)的半导体基板(312)放置成与具有芯片焊盘(322,334)的陶瓷基板(320)接触,并将该 结构与球栅阵列球体(352)接触以便在单个流动过程中形成CBGA(360),该方法包括以下步骤:提供具有至少一个连接到半导体表面的第一互连结构的半导体器件 装置(501)和具有多个金属化焊盘(503)的衬底;将至少一个第二互连结构放置成与所述多个金属化焊盘(505)中的一个或多个对准接触;将所述至少一个第一互连 结构与所述多个金属化焊盘(507)中的一个或多个对准接触;以及同时回流所述至少一个第一互连结构和所述至少一个第二互连 使得半导体器件和至少一个第二互连结构连接到衬底(509)的金属化焊盘。

    Verfahren zum Herstellen elektrischer Schaltkreise

    公开(公告)号:EP0790644A2

    公开(公告)日:1997-08-20

    申请号:EP97101426.1

    申请日:1997-01-30

    Abstract: Verfahren zum Herstellen elektrischer Schaltkreise, welche durch Edelmetalle kontaktierte und über Leiterbahnen aus Kupfer elektrisch verbundene Widerstände und gegebenenfalls Dielektrika umfassen, wobei zumindest die Kontakte der Widerstände aus Edelmetall und die anschließenden Leiterbahnen aus Kupfer durch Aufbringen von Pasten und deren Sintern erzeugt werden. Das Sintern der Leiterbahnen aus Kupfer bei Temperaturen erfolgt oberhalb von 850°C unter Stickstoffatmosphäre erfolgt, wobei eine elektrisch leitende Trennschicht (5) zwischen Edelmetallkontakten und Leiterbahn die Bildung eines Eutektikums Edelmetall/Kupfer verhindert.

    Abstract translation: 通过糊料施加和烧结制造贵金属和铜的相邻电路线的电阻器触点,至少在铜电路线的烧结在氮气氛下在850℃以上进行,并且在触点之间设置导电分离层 和电路线,以防止贵金属/铜共晶形成。 分离层通过在设置铜电路线之前施加粘合膏(主要是镍),或者通过用导电粘合剂例如在烧结之后密封接触和电路线之间留下的间隙来形成。 的银分散在聚酰亚胺中。

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