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    • 72. 发明申请
    • METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE OBTAINED BY MEANS OF SUCH A METHOD
    • 制造这种方法的半导体器件和半导体器件的制造方法
    • WO2004070834A1
    • 2004-08-19
    • PCT/IB2004/050030
    • 2004-01-16
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.INTERUNIVERSITAIR MICROELEKTRONICA CENTRUM VZWLANDER, RobertKNOTTER, Dirk, M.
    • LANDER, RobertKNOTTER, Dirk, M.
    • H01L21/8238
    • H01L21/823842Y10S438/976
    • The invention relates to a method of manufacturing a semiconductor device (10) with a substrate (1) and a semiconductor body (2) comprising a first (N-MOS)FET (3) with a first channel region (3A) and a first gate electrode (3B) which includes a first conductor and which is separated from the channel region by a dielectric layer (4), and comprising a second (P-MOS)FET (5) with a second channel region (5A) and a second gate electrode (5B) which includes a second conductor that is different from the first conductor and which is separated from the channel region (5A) by a dielectric layer (4), wherein to form the gate electrodes (3B, 5B) a first conductor layer (33) is deposited on the semiconductor body (2) provided with the dielectric layer (4), which layer (33) is subsequently removed outside the first channel region (3A) after which a second conductor layer (55) is deposited on the semiconductor body (2), and wherein before the first conductor layer (33) is deposited, an intermediate layer (6) is deposited on the dielectric layer (4). According to the invention, a material for the intermediate layer (6) is chosen which is selectively etchable with respect to the dielectric layer (4), and before the deposition of the first conductor layer (33) the intermediate layer (6) is removed at the location of the firs channel region (3A), and after the deposition of the first conductor layer (33) and the removal thereof outside the first channel region (3A) and before the deposition of the second conductor layer (55), the intermediate layer (6) is removed at the location of the second channel region (5A). Thus, FETs are obtained in a simple manner and without damage to their gate dielectric. Preferably, a further intermediate layer (8) is deposited on the intermediate layer (6) which is selectively etchable with respect thereto.
    • 本发明涉及一种制造半导体器件(10)的方法,所述半导体器件(10)具有衬底(1)和半导体本体(2),所述半导体本体(2)包括具有第一沟道区(3A)的第一(N-MOS)FET(3) 栅电极(3B),其包括第一导体,并且通过介电层(4)与沟道区分离,并且包括具有第二沟道区(5A)的第二(P-MOS)FET(5)和第二沟道区 栅电极(5B),其包括与所述第一导体不同的第二导体,并且通过电介质层(4)与所述沟道区(5A)分离,其中,形成所述栅极(3B,5B)的第一导体 层(33)沉积在设置有电介质层(4)的半导体本体(2)上,该层(33)随后在第一沟道区域(3A)之外被移除,之后第二导体层(55)沉积在 半导体本体(2),并且其中在第一导体层(33)沉积之前, ayer(6)沉积在介电层(4)上。 根据本发明,选择用于中间层(6)的材料,其相对于电介质层(4)可选择性地蚀刻,并且在沉积第一导体层(33)之前,中间层(6)被去除 在第一通道区域(3A)的位置处,并且在第一导体层(33)沉积之后并且将其除去在第一沟道区域(3A)之外并且在第二导体层(55)的沉积之前, 在第二通道区域(5A)的位置处去除中间层(6)。 因此,以简单的方式获得FET并且不损坏其栅极电介质。 优选地,在中间层(6)上沉积另外的中间层(8),中间层(6)可相对于其可选择性地蚀刻。
    • 80. 发明申请
    • METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE
    • 制造半导体器件和半导体器件的方法
    • WO2009122345A1
    • 2009-10-08
    • PCT/IB2009/051324
    • 2009-03-30
    • NXP B.V.INTERUNIVERSITAIR MICROELEKTRONICA CENTRUM VZWSINGANAMALLA, RaghunathHOOKER, Jacob, C.VAN DAL, Marcus, J., H.
    • SINGANAMALLA, RaghunathHOOKER, Jacob, C.VAN DAL, Marcus, J., H.
    • H01L21/8234H01L21/8238H01L21/28H01L21/336
    • H01L21/82345H01L21/265H01L21/28097H01L21/823842H01L29/4975
    • A method of manufacturing a semiconductor device having gate electrodes of a suitable work function material is disclosed. The method comprises providing a substrate (100) including a number of active regions (110, 120) and a dielectric layer (130) covering the active regions (110, 120), and forming a stack of layers (140, 150, 160) over the dielectric layer. The formation of the stack of layers comprises depositing a first metal layer (140), having a first thickness, e.g. less than 10 nm, over the dielectric layer (130), depositing a second metal layer (150) having a second thickness over the first metal layer (140), the second thickness being larger than the first thickness, introducing a dopant (152, 154) into the second metal layer (150), exposing the device to an increased temperature to migrate at least some of the dopant (152, 154) from the second metal layer (150) beyond the interface between the first metal layer (140) and the second metal layer (150); and patterning the stack into a number of gate electrodes (170). This way a gate electrode is formed having an dopant profile in the vicinity of the dielectric layer (130) such that the work function of the gate electrode is optimized, without the gate dielectric suffering from degradation by dopant penetration.
    • 公开了一种制造具有合适功函材料的栅极的半导体器件的方法。 该方法包括提供包括多个有源区(110,120)和覆盖有源区(110,120)的介电层(130)的衬底(100),以及形成层叠层(140,150,160) 在介电层上。 堆叠层的形成包括沉积具有第一厚度的第一金属层(140) 在所述电介质层(130)上方小于10nm,在所述第一金属层(140)上沉积具有第二厚度的第二金属层(150),所述第二厚度大于所述第一厚度, 154)插入到第二金属层(150)中,使该器件暴露于升高的温度以将来自第二金属层(150)的至少一些掺杂剂(152,154)从第一金属层(140) 和第二金属层(150); 以及将所述堆叠图案化成多个栅电极(170)。 这样,在电介质层(130)附近形成具有掺杂剂分布的栅电极,使得优化栅电极的功函数,而不会使掺杂剂渗透的栅电介质劣化。