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    • 3. 发明授权
    • Method of fabricating semiconductor device
    • 制造半导体器件的方法
    • US06617240B2
    • 2003-09-09
    • US09748230
    • 2000-12-27
    • Yasunori InoueNaoteru MatsubaraHidetaka NishimuraHideki Mizuhara
    • Yasunori InoueNaoteru MatsubaraHidetaka NishimuraHideki Mizuhara
    • H01L214763
    • H01L21/76877H01L21/76802H01L21/76825H01L21/76828
    • A method of fabricating a semiconductor device capable of attaining an excellent embedding characteristic also when an opening has a small diameter is obtained. According to this method of fabricating a semiconductor device, an interlayer dielectric film having an opening is formed. A first conductive member is formed in the opening by sputtering. In advance of formation of the first conductive member, first heat treatment is performed at a temperature capable of reducing the quantity of moisture and hydroxyl groups in the interlayer dielectric film. Thus, the interlayer dielectric film has a small quantity of moisture and hydroxyl groups when the first conductive member is embedded in the opening, whereby the embedding characteristic of the first conductive member is improved. Consequently, electric characteristics of a contact part can be improved also when the opening has a small diameter.
    • 获得了当开口具有小直径时也能够获得优异的嵌入特性的半导体器件的制造方法。 根据制造半导体器件的这种方法,形成具有开口的层间绝缘膜。 通过溅射在开口中形成第一导电构件。 在形成第一导电部件之前,首先在能够降低层间电介质膜的湿度和羟基量的温度下进行热处理。 因此,当第一导电部件嵌入开口时,层间电介质膜具有少量的水分和羟基,从而提高了第一导电部件的嵌入特性。 因此,当开口具有小直径时,也可以提高接触部的电特性。
    • 4. 发明授权
    • Method of making a dual damascene structure with modified insulation
    • 制造具有改性绝缘材料的双镶嵌结构的方法
    • US06399478B2
    • 2002-06-04
    • US09788661
    • 2001-02-21
    • Naoteru MatsubaraHideki Mizuhara
    • Naoteru MatsubaraHideki Mizuhara
    • H01L214763
    • H01L21/76825H01L21/76807
    • A semiconductor device having a dual damascene structure having a highly reliable multilayered interconnection is applied to the present invention. A protective film (12) is formed on a first interconnection (11), and a modified SOG film (13a) is then provided thereon. An etch stopper film (14) is formed on the modified SOG film (13a), and a modified SOG film (15a) is then formed. The modified SOG film (15a), the etch stopper film (14), and the modified SOG film (13a) are etched away using a resist pattern, to form a via hole (17). The modified SOG film (15a) is etched away using the resist pattern, to form a recess (19) serving as a trench interconnection portion. The etch stopper film (14) and the protective film (12) which are exposed are removed, and the recess is filled with a conductive material (20), to form a conductive plug in the via hole and a second interconnection.
    • 具有高度可靠的多层互连的双镶嵌结构的半导体器件被应用于本发明。 在第一互连(11)上形成保护膜(12),然后在其上提供改性SOG膜(13a)。 在改性SOG膜(13a)上形成蚀刻停止膜(14),然后形成改性SOG膜(15a)。 使用抗蚀剂图案蚀刻掉改性SOG膜(15a),蚀刻停止膜(14)和改性SOG膜(13a),以形成通孔(17)。 使用抗蚀剂图案蚀刻掉改性SOG膜(15a),形成用作沟槽互连部分的凹部(19)。 去除暴露的蚀刻停止膜(14)和保护膜(12),并且用导电材料(20)填充凹部,以在通孔和第二互连中形成导电塞。
    • 10. 发明授权
    • Fabrication method of semiconductor device including insulation film
with decomposed organic content
    • 具有分解有机物含量的绝缘膜的半导体器件的制造方法
    • US6071807A
    • 2000-06-06
    • US997049
    • 1997-12-23
    • Hiroyuki WatanabeHideki MizuharaKimihide Saito
    • Hiroyuki WatanabeHideki MizuharaKimihide Saito
    • H01L21/28H01L21/265H01L21/3115H01L21/316H01L21/768H01L29/78H01L21/00
    • H01L21/76859H01L21/31155H01L21/76801H01L21/76819H01L21/76825H01L21/7685
    • A semiconductor device including an interlayer insulation film is obtained, superior in planarization, insulation characteristics, and adhesion, suitable for microminiaturization of an element, and without inducing the problem of signal delay. In the fabrication method of this semiconductor device, an interconnection is formed on semiconductor substrate. Then, a first insulation film is formed so as to be in contact on the interconnection. Impurities are introduced into the first insulation film under a condition where the impurities arrive at least at the interconnection. As a result, the first insulation film is reduced in moisture and becomes less hygroscopic. Therefore, the insulation characteristics of the first insulation film is improved. When an SOG film superior in planarization is employed as the first insulation film, it is possible to directly form that SOG film on an underlying interconnection. In addition, the adhesion intensity between the first insulation film and the interconnection is improved. Furthermore, the distance between the pattern in the underlying interconnection can be reduced. Also, the capacitance between the interconnections is reduced.
    • 获得包括层间绝缘膜的半导体器件,其平坦化,绝缘特性和粘合性优异,适用于元件的微小化,并且不引起信号延迟的问题。 在该半导体器件的制造方法中,在半导体衬底上形成互连。 然后,形成第一绝缘膜以在互连上接触。 杂质在杂质到达至少互连的条件下被引入第一绝缘膜。 结果,第一绝缘膜的湿度降低并且吸湿性变差。 因此,提高了第一绝缘膜的绝缘特性。 当采用平面化优异的SOG膜作为第一绝缘膜时,可以在下面的互连上直接形成SOG膜。 此外,提高了第一绝缘膜和互连之间的粘附强度。 此外,底层互连中的图案之间的距离可以减小。 此外,互连之间的电容减小。