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    • 3. 发明申请
    • PROCESS FOR SIMPLIFICATION OF A FINISHING SEQUENCE AND STRUCTURE OBTAINED BY THE PROCESS
    • 简化过程获得的完成顺序和结构的过程
    • WO2007071787A1
    • 2007-06-28
    • PCT/EP2006/070177
    • 2006-12-22
    • S.O.I.TEC SILICON ON INSULATOR TECHNOLOGIESNEYRET, EricBOUSSAGOL, AliceBEN MOHAMED, Nadia
    • NEYRET, EricBOUSSAGOL, AliceBEN MOHAMED, Nadia
    • H01L21/762
    • H01L21/76254
    • According to a first aspect, this invention concerns a process for the formation of a structure comprising a thin layer (8) made of a semi conducting material on a substrate (7), including steps to create a weakened zone 5 (3) within the thickness of a donor substrate (1), to bring the donor substrate (1) into intimate contact with a support substrate(7), to detach the donor substrate (1) at the weakened zone (3) to transfer part (5) of the donor substrate (1) onto the support substrate (7), to 10 treat the said part (5) of the donor substrate transferred onto the support substrate to form the said thin layer (8), the said treatment consisting of a sequence of finishing operations; the process being characterised in that: 15 - detachment is achieved by the application of a heat treatment to develop weakening of the weakened zone (3), without initiating thermal detachment of the said part of the donor substrate; and application of an energy pulse (10) provoking self-maintained detachment of the 20 said part (5) of the donor substrate; - and in that the sequence of finishing operations is a sequence simplified by eliminating the first or the last operation of a sequence consisting of repeating the sequencing of a smoothing operation of the free surface 25 (9) of the said part (5) of the donor substrate transferred onto the support substrate, with a thinning operation of the said part (5) of the donor substrate transferred onto the support substrate.
    • 根据第一方面,本发明涉及一种用于形成包括在衬底(7)上由半导体材料制成的薄层(8)的结构的方法,包括在所述衬底(7)内形成弱化区域5(3)的步骤 供体基板(1)的厚度,以使供体基板(1)与支撑基板(7)紧密接触,以在弱化区域(3)上分离供体基板(1),以将供体基板(1)的部分(5) 将施主衬底(1)放置在支撑衬底(7)上,以将处理转移到支撑衬底上的施主衬底的所述部分(5)处理以形成所述薄层(8),所述处理由 整理作业; 该方法的特征在于:通过施加热处理以产生弱化区(3)的弱化而不引起所述供体基底的所述部分的热分离来实现脱离; 以及施加能量脉冲(10),引发所述施主衬底的所述部分(5)的自维护脱离; 并且因为整理操作的顺序是通过消除由重复对所述部分(5)的自由表面25(9)的平滑操作的顺序组成的序列的第一或最后一个操作来简化的序列。 供体衬底转移到支撑衬底上,将供体衬底的所述部分(5)的薄化操作转移到支撑衬底上。
    • 4. 发明申请
    • PROCESS FOR FABRICATING A SUBSTRATE OF THE SILICON-ON-INSULATOR TYPE
    • 用于制造绝缘体绝缘体类型的基板的方法
    • WO2008093187A1
    • 2008-08-07
    • PCT/IB2008/000132
    • 2008-01-16
    • S.O.I.TEC SILICON ON INSULATOR TECHNOLOGIESNEYRET, Eric
    • NEYRET, Eric
    • H01L21/762
    • H01L21/76254H01L21/76259
    • The invention relates to a process for fabricating a substrate (6) of the SOI (silicon on insulator) type, which comprises steps of bonding and transferring layers for obtaining a semifinished SOI substrate comprising a silicon substrate (3) covered with a silicon dioxide layer (2) and with a thick silicon layer having a thickness of greater than 150 ran. This process is noteworthy in that it comprises the following finishing steps: a) thinning of said thick silicon layer so as to obtain a thin silicon layer (112) having a smaller thickness than said thick layer but greater than 150 nm; b) long annealing in a gaseous atmosphere comprising hydrogen and/or argon; and c) thinning of said thin silicon layer (112), so as to obtain said SOI substrate (6) comprising said silicon substrate (3) covered with the silicon dioxide layer (2) and with an ultrathin silicon layer having a thickness of 150 nm or less.
    • 本发明涉及一种用于制造SOI(绝缘体上硅)类型的衬底(6)的工艺,其包括用于获得半导体SOI衬底的结合和转移层的步骤,所述SOI衬底包括被二氧化硅层覆盖的硅衬底(3) (2)和厚度大于150nm的厚硅层。 该方法值得注意的是,它包括以下精加工步骤:a)使所述厚硅层变薄,以获得具有比所述厚层更小的厚度但大于150nm的薄硅层(112); b)在包含氢气和/或氩气的气氛中进行长时间退火; 以及c)使所述薄硅层(112)变薄,从而获得包括用二氧化硅层(2)覆盖的所述硅衬底(3)的SOI衬底(6)和厚度为150的超薄硅层 nm以下。
    • 8. 发明申请
    • PROCESS FOR FABRICATING A SUBSTRATE OF THE SILICON-ON-INSULATOR TYPE
    • 用于制造绝缘体绝缘体类型的基板的方法
    • WO2008093193A1
    • 2008-08-07
    • PCT/IB2008/000157
    • 2008-01-23
    • S.O.I.TEC SILICON ON INSULATOR TECHNOLOGIESNEYRET, EricBOEDT, François
    • NEYRET, EricBOEDT, François
    • H01L21/762
    • H01L21/76254
    • The invention relates to a process for fabricating a substrate (6) of the SOI (silicon on insulator) type, comprising a thin silicon layer (11), the surface roughness of which is uniform, and a buried SiO2 layer, the thickness of which is uniform. This process is noteworthy in that it comprises the following steps, consisting in: a) atomic or ionic species are co-implanted which in a silicon donor substrate (1), so as to form therein a weakened zone (10) which forms the boundary between said thin layer (11) and a remainder (12); b) this donor substrate (1) is bonded to a substrate (3) by molecular adhesion, a layer (2) of silicon oxide being interposed between the two; c) and/or said remainder (12) is detached along the weakened zone (10), mainly mechanically; and d) carrying out at least one finishing step on said thin silicon layer (11) by long thermal annealing, in a gaseous atmosphere of hydrogen and/or argon, at a temperature of at least 950°C but not exceeding 1100°C.
    • 本发明涉及一种用于制造SOI(绝缘体上硅)型的衬底(6)的方法,其包括其表面粗糙度均匀的薄硅层(11)和其厚度的掩埋SiO 2层 是统一的 该过程值得注意的是,其包括以下步骤,其包括:a)在硅供体衬底(1)中共注入原子或离子物质,以在其中形成形成边界的弱化区(10) 在所述薄层(11)和剩余部分(12)之间; b)通过分子粘附将该供体基板(1)与基板(3)结合,在二者之间插入氧化硅层(2); c)和/或所述剩余部分(12)主要以机械方式沿弱化区域(10)分离; 以及d)在氢和/或氩的气态气氛中,在至少950℃但不超过11​​00℃的温度下,通过长时间热退火在所述薄硅层(11)上进行至少一个精加工步骤。
    • 10. 发明申请
    • IMPROVED PROCESS FOR TRANSFER OF A THIN LAYER FORMED IN A SUBSTRATE WITH VACANCY CLUSTERS
    • 改进用于在具有VACANCY集群的基板中形成薄层的转移过程
    • WO2008050176A1
    • 2008-05-02
    • PCT/IB2006/003972
    • 2006-10-27
    • S.O.I.TEC SILICON ON INSULATOR TECHNOLOGIESNEYRET, EricKONONCHUK, Oleg
    • NEYRET, EricKONONCHUK, Oleg
    • H01L21/762H01L21/322
    • H01L21/76254
    • Methods for forming semiconductor structures comprising a layer transferred from a donor substrate are provided in which the resulting structure has improved quality with respect of defects, and resulting structures therefrom. For example, a semiconductor on insulator (SeOI) structure can be formed by a method comprising: - providing a donor substrate (1) having a first density of vacancy clusters; - providing an insulating layer (3); - transferring a thin layer (10) from the donor substrate (1) to a support substrate (2) with the insulating layer (3) thereon; - curing the transferred thin layer (10) to reduce the first density of vacancy clusters to a second density; and being characterized in that the step of providing an insulating layer (30) comprises providing an oxygen barrier layer (4) to be in contact with the transferred thin layer (10), said oxygen barrier layer limiting diffusion of oxygen towards the thin layer during the curing.
    • 提供了形成包括从供体基底转移的层的半导体结构的方法,其中所得到的结构相对于缺陷而提高了质量,并且由此产生了结构。 例如,可以通过以下方法形成绝缘体上半导体(SeOI)结构: - 提供具有第一密度的空位簇的施主衬底(1) - 提供绝缘层(3); - 将薄层(10)从施主衬底(1)转移到其上具有绝缘层(3)的支撑衬底(2)上; - 固化转移的薄层(10)以将空位簇的第一密度降低至第二密度; 并且其特征在于,提供绝缘层(30)的步骤包括提供与转移的薄层(10)接触的氧阻挡层(4),所述氧阻隔层限制氧向薄层扩散 固化。