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    • 3. 发明授权
    • Laser annealing apparatus and method of fabricating thin film transistor
    • 激光退火装置及制造薄膜晶体管的方法
    • US06780692B2
    • 2004-08-24
    • US10215049
    • 2002-08-08
    • Koichi TatsukiKoichi TsukiharaNaoya Eguchi
    • Koichi TatsukiKoichi TsukiharaNaoya Eguchi
    • H01L2100
    • H01L29/66765H01L29/78636H01L29/78678
    • In a method of fabricating a thin film transistor through conversion of an amorphous silicon film into a polysilicon film to be an active layer of the thin film transistor by a laser annealing treatment, a laser annealing apparatus comprising a plurality of semiconductor laser devices arranged performs the laser annealing treatment by irradiating the surface of the amorphous silicon film with laser light uniformized in the light intensity of the laser light radiated onto the surface of the amorphous silicon film, whereby the crystal grain diameter of the polysilicon film obtained through recrystallization is uniformized, and it is possible to obtain a thin film transistor with transistor characteristics enhanced by using the polysilicon film as the active layer.
    • 在通过激光退火处理将非晶硅膜转换为多晶硅膜以成为薄膜晶体管的有源层来制造薄膜晶体管的方法中,包括布置的多个半导体激光器件的激光退火装置执行 通过以照射到非晶硅膜的表面上的激光的光强度均匀化的激光照射非晶硅膜的表面的激光退火处理,由此通过重结晶获得的多晶硅膜的晶粒粒径均匀化,并且 可以通过使用多晶硅膜作为有源层来获得具有增强的晶体管特性的薄膜晶体管。
    • 6. 发明授权
    • Method of producing single crystal of KTiOPO.sub.4
    • 生产KTiOPO4单晶的方法
    • US5370076A
    • 1994-12-06
    • US056530
    • 1993-05-05
    • Tsutomu OkamotoKoji WatanabeTatsuo FukuiYasushi MinoyaKoichi TatsukiShigeo Kubota
    • Tsutomu OkamotoKoji WatanabeTatsuo FukuiYasushi MinoyaKoichi TatsukiShigeo Kubota
    • C30B15/00C30B9/00C30B29/22C30B29/32G02F1/35G02F1/355C30B9/12
    • C30B9/00C30B29/14
    • A method of growing a single crystal of KTiOPO.sub.4 which is a nonlinear optical material is disclosed. Growth of the single crystal of KTiOPO.sub.4 is carried out by melting a KTiOPO.sub.4 material with a flux to produce a melt, then contacting a seed crystal to the melt, and by slowly cooling at a saturation temperature or below. At this time, molar fractions of K.sub.2 O, P.sub.2 O.sub.5 and TiO.sub.2 contained in the melt fall within a region surrounded by six point in a K.sub.2 O-P.sub.2 O.sub.5 -TiO.sub.2 ternary phase diagram of A (K.sub.2 O:0.4150, P.sub.2 O.sub.5 :0.3906, TiO.sub.2 : 0.1944), B (K.sub.2 O:0.3750, P.sub.2 O.sub.5 : 0.3565, TiO.sub.2 : 0.2685), C (K.sub.2 O: 0.3750, P.sub.2 O.sub.5 : 0.3438, TiO.sub.2 : 0.2813), D (K.sub.2 O: 0.3850, P.sub.2 O.sub.5 : 0.3260, TiO.sub.2 : 0.2890), E (K.sub.2 O: 0.4000, P.sub.2 O.sub.5 : 0.3344, TiO.sub.2 : 0.2656), and F (K.sub.2 O: 0.4158, P.sub.2 O.sub.5 : 0.3744, TiO.sub.2 : 0.2098). In addition, K.sub.15 P.sub.13 O.sub.40 or the same composition produced by melting is used as the flux, and the proportion of a KTiOPO.sub.4 element in a composition of the melt is prescribed to 83.5 to 90.0 mol %. The seed crystal is set so that a C axis is in a direction perpendicular to a melt surface. Then, the seed crystal contacted to the melt is rotated and slowly cooled. Thus, a single crystal of KTiOPO.sub.4 of single domain at the end of growth can be produced.
    • 公开了一种生长作为非线性光学材料的KTiOPO4单晶的方法。 通过用助熔剂熔化KTiOPO 4材料以产生熔体,然后使晶种接触熔体,并通过在饱和温度或更低温度下缓慢冷却来进行KTiOPO4单晶的生长。 此时,K2O,P2O5和TiO 2的摩尔分数在A(K2O:0.4150,P2O5:0.3906,TiO 2:0.1944),K 2 O 3的K 2 O 5 - (K2O:0.3750,P2O5:0.3565,TiO2:0.2685),C(K2O:0.3750,P2O5:0.3438,TiO2:0.2813),D(K2O:0.3850,P2O5:0.3260,TiO2:0.2890),E(K2O: P 2 O 5:0.3344,TiO 2:0.2656)和F(K 2 O:0.4158,P 2 O 5:0.3744,TiO 2:0.2098)。 此外,将K15P13O40或通过熔融制造的相同组成用作助熔剂,并且将熔体组成中的KTiOPO 4元素的比例规定为83.5〜90.0mol%。 晶种被设定为使得C轴在垂直于熔体表面的方向上。 然后,将与熔体接触的晶种旋转并缓慢冷却。 因此,可以生产在生长结束时单畴KTiOPO4的单晶。
    • 8. 发明授权
    • Laser beam generating apparatus and method
    • 激光束发生装置及方法
    • US06240111B1
    • 2001-05-29
    • US09289244
    • 1999-04-09
    • Shigeo KubotaNobuhiko UmezuTatsuo FukuiHisashi MasudaKoichi Tatsuki
    • Shigeo KubotaNobuhiko UmezuTatsuo FukuiHisashi MasudaKoichi Tatsuki
    • H01S310
    • G02F1/37
    • A laser beam generating apparatus comprising a first laser beam source oscillating in a near infrared-ray region of, for example, an Nd:YAG laser to generate a laser beam, a second higher harmonic wave generator for generating, from the laser beam emitted from the first laser beam source, a second higher harmonic wave having a half wavelength of the laser beam emitted from the first laser beam source, a splitter for splitting the second higher harmonic wave, a second laser beam source which is supplied with a part of the second higher harmonic wave thus split is input to a Ti:Sapphire laser to be excited and oscillated, thereby generating a laser beam of substantially 700 nm in wavelength, a fourth higher harmonic wave generator for generating a fourth higher harmonic wave from the remaining part of the second higher harmonic wave thus split, a sum frequency mixing composed of a BBO crystal device to which the laser beam of substantially 700 nm in wavelength and the fourth higher harmonic wave are input, and a controller for controlling the temperature of the BBO crystal device to substantially 100K or less, thereby generating a laser beam of substantially 193 nm in wavelength as an output of the sum frequency mixing.
    • 一种激光束产生装置,包括:在例如Nd:YAG激光器的近红外线区域中振荡的第一激光束源,以产生激光束;第二高次谐波发生器,用于从从 第一激光束源,具有从第一激光束源发射的激光束的半波长的第二高次谐波,用于分离第二高次谐波的分离器,被提供有第一激光束的一部分的第二激光束源 将这样分割的第二高次谐波输入到激发和振荡的Ti:蓝宝石激光器中,从而产生大致为700nm的波长的激光束;第四高次谐波发生器,用于从剩余部分产生第四高次谐波 这样分裂的第二高次谐波,由BBO晶体器件组成的和频混频,其中波长大致为700nm的激光束和第四较高谐波 尼康波输入,以及用于将BBO晶体装置的温度控制在基本上为100K以下的控制器,由此产生大致193nm的波长的激光束作为和频混合的输出。
    • 10. 发明授权
    • Light irradiator
    • 光照射器
    • US07154673B2
    • 2006-12-26
    • US10533946
    • 2003-10-24
    • Koichi TsukiharaKoichi Tatsuki
    • Koichi TsukiharaKoichi Tatsuki
    • G02B27/10
    • B23K26/0608B23K26/0604H01L21/268
    • A light illuminating apparatus used for a laser annealing apparatus includes a first light splitting unit (16) and a second light splitting unit (20) for splitting a sole laser beam into n laser beams, and a synthesis unit (21) for synthesizing an m'th laser beam, radiated from the first light splitting unit (16), and an m'th laser beam radiated from the second light splitting unit (20), to each other, where m is an integer not less than 1 and not larger than n. The first light splitting unit (16) and the second light splitting unit (20) are formed by the same optical components and are arrayed inverted with respect to each other.
    • 用于激光退火装置的光照射装置包括:第一分光单元(16)和用于将唯一激光束分割为n个激光束的第二分光单元(20),以及合成单元(21),用于合成m 从第一分光单元(16)辐射的第一激光束和从第二分光单元(20)辐射的第m个激光束彼此相对,其中m是不小于1且不大于 比n。 第一分光单元(16)和第二分光单元(20)由相同的光学部件形成,并相对于彼此反转。