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    • 2. 发明公开
    • 양자점 레이저 다이오드 및 그 제조 방법
    • 量子激光二极管及其制造方法
    • KR1020070059923A
    • 2007-06-12
    • KR1020060086028
    • 2006-09-07
    • 한국전자통신연구원
    • 김진수이진홍홍성의곽호상최병석오대곤
    • H01S5/12
    • H01S5/1237H01S5/1231H01S2304/04
    • A quantum dot laser diode and a manufacturing method thereof are provided to acquire a good gain in a wanted oscillation wavelength without influence on a quantum dot uniformity by adapting a grating structure as a variable which has an influence on a quantum dot active layer. A manufacturing method of a quantum dot laser diode includes the steps of: forming a grating structure layer(120) having a plurality of gratings(130) on a substrate(110); forming a first lattice matching layer(140) on an upper part of the grating structure layer(120); forming at least one quantum dot layer(150) having at least one quantum dot on the first lattice matching layer(140); forming a second lattice matching layer(141) on the quantum dot layer(150); forming a clad layer(160) on the second lattice matching layer(141); and forming an ohmic contact layer(170) on the clad layer(160). One of an organic metal chemical deposition method, a molecular line deposition method, and a chemical line deposition method is used in the quantum dot forming step.
    • 提供了一种量子点激光二极管及其制造方法,通过使光栅结构作为对量子点有源层有影响的变量来获得所需振荡波长的良好增益,而不影响量子点均匀性。 量子点激光二极管的制造方法包括以下步骤:在衬底(110)上形成具有多个光栅(130)的光栅结构层(120); 在所述光栅结构层(120)的上部形成第一晶格匹配层(140); 在所述第一晶格匹配层(140)上形成至少一个具有至少一个量子点的量子点层(150); 在量子点层(150)上形成第二晶格匹配层(141); 在所述第二晶格匹配层(141)上形成覆层(160); 以及在所述包覆层(160)上形成欧姆接触层(170)。 在量子点形成工序中,使用有机金属化学沉积法,分子线沉积法,化学线沉积法之一。
    • 3. 发明公开
    • 분포궤환형 양자점 반도체 레이저 구조물
    • 分布式反馈(DFB)量子激光结构
    • KR1020070059872A
    • 2007-06-12
    • KR1020060056215
    • 2006-06-22
    • 한국전자통신연구원
    • 오대곤이진홍김진수홍성의최병석김현수김성복
    • H01S5/12
    • H01S5/12B82Y20/00H01S5/0425H01S5/3412H01S5/34306H01S2301/185
    • A distributed feedback quantum dot laser structure is provided to acquire stable single mode purity by dividing an upper electrode structure to reduce local carrier saturation and hole burning phenomena. A distributed feedback quantum dot laser structure(300) includes a first clad layer(320) on a lower electrode(310). An optical waveguide(330) is formed on the first clad layer(320). A grating structure layer(340) is formed on the optical waveguide(330) and includes a plurality of gratings(340a) arranged periodically. A first separate confinement hetero layer(345) is formed on the grating structure layer(340). An active layer(350) is formed on the first separate confinement hetero layer(345) and includes at least one quantum dot. A second separate confinement hetero layer(355) is formed on the active layer(350). A second clad layer(360) is formed on the second separate confinement hetero layer(355). An ohmic layer(370) is formed on the second clad layer(360). An upper electrode(380) is formed on the ohmic layer(370).
    • 提供分布式反馈量子点激光器结构,通过分割上电极结构以减少局部载流子饱和度和空穴现象,获得稳定的单模纯度。 分布式反馈量子点激光器结构(300)包括在下电极(310)上的第一覆层(320)。 在第一覆盖层(320)上形成有光波导(330)。 在光波导(330)上形成光栅结构层(340),并且包括周期性排列的多个光栅(340a)。 第一分离的约束异质层(345)形成在光栅结构层(340)上。 活性层(350)形成在第一分离限制杂质层(345)上,并包括至少一个量子点。 在活性层(350)上形成第二分开的约束异质层(355)。 第二包层(360)形成在第二分离限制杂质层(355)上。 在第二覆层(360)上形成欧姆层(370)。 上电极(380)形成在欧姆层(370)上。
    • 4. 发明公开
    • 양자점 레이저 다이오드 및 그 제조방법
    • 量子激光二极管及其制造方法
    • KR1020070059871A
    • 2007-06-12
    • KR1020060056212
    • 2006-06-22
    • 한국전자통신연구원
    • 김진수이진홍홍성의곽호상최병석오대곤
    • H01S5/30
    • H01S5/341B82Y20/00H01S5/3403H01S5/3412H01S5/34306H01S2304/00
    • A quantum dot laser diode and a manufacturing method there of are provided to improve uniformity of a quantum dot by using a quantum dot of an ideal shape as an active layer of the quantum dot laser diode. A quantum dot laser diode(200) includes a first clad layer(220) on an InP substrate(210). A first lattice matching layer(230) is formed on the first clad layer(220). An active layer(240) is formed on the first lattice matching layer(230) and includes at least one quantum dot layer(245) composed of an In(Ga,Al)As quantum dot or an In(Ga,Al,P)As quantum dot grown by an alternative growth process. A second lattice matching layer(231) is formed on the active layer(240). A second clad layer(250) is formed on the second lattice matching layer(231). An ohmic-contact layer(260) is formed on the second clad layer(250).
    • 提供了量子点激光二极管及其制造方法,以通过使用量子点激光二极管的有源层的理想形状的量子点来提高量子点的均匀性。 量子点激光二极管(200)包括在InP衬底(210)上的第一覆盖层(220)。 在第一覆盖层(220)上形成第一晶格匹配层(230)。 活性层(240)形成在第一晶格匹配层(230)上,并且包括由In(Ga,Al)As量子点或In(Ga,Al,P)组成的至少一个量子点层(245) 作为通过替代生长过程生长的量子点。 第二晶格匹配层(231)形成在有源层(240)上。 第二覆盖层(250)形成在第二晶格匹配层(231)上。 欧姆接触层(260)形成在第二覆层(250)上。
    • 6. 发明公开
    • 선택적 면적 결정성장기법을 이용한 양자점 형성방법 및이를 이용하여 제조된 광소자
    • 使用选择区域生长量子点的方法和使用其制造的光学器件
    • KR1020040054442A
    • 2004-06-25
    • KR1020020081481
    • 2002-12-18
    • 한국전자통신연구원
    • 오대곤이진홍김진수홍성의한원석
    • H01L21/20
    • PURPOSE: A method for forming a quantum dot using a selective area growth and an optical device manufactured by using the same are provided to be capable of increasing the allowable error extent of optimizing variables, easily applying optical mode conversion characteristics to a photon IC(Integrated Circuit), and variously controlling the size and density of quantum dots at a time. CONSTITUTION: A substrate(22) is prepared for forming quantum dots. A dielectric mask is formed on the predetermined portion of the substrate. A plurality of quantum dots are formed on the resultant structure except the dielectric mask region. The size of the quantum dot is capable of being changed by controlling the volume of material atoms moved to the opened portion of the substrate. Preferably, the dielectric mask having a thickness of 200-300 nm is made of silicon nitride.
    • 目的:提供使用选择性区域生长形成量子点的方法和使用该方法制造的光学装置,以便能够增加优化变量的容许误差范围,容易地将光学模式转换特性应用于光子IC(集成 电路),并且一次不同地控制量子点的尺寸和密度。 构成:制备用于形成量子点的衬底(22)。 在基板的预定部分上形成介电掩模。 除了电介质掩模区域之外,在所得结构上形成多个量子点。 量子点的尺寸能够通过控制移动到衬底的开口部分的材料原子的体积来改变。 优选地,具有200-300nm厚度的电介质掩模由氮化硅制成。
    • 7. 发明公开
    • 양자점을 포함하는 반도체 레이저 구조물
    • 包括量子点的SENICONDUCTOR DEVICE STRUCTURE
    • KR1020070058960A
    • 2007-06-11
    • KR1020060084913
    • 2006-09-05
    • 한국전자통신연구원
    • 오대곤이진홍김진수홍성의곽호상
    • H01S5/12
    • H01S5/1237H01S3/08009H01S5/1209H01S5/2228
    • A semiconductor laser structure including a quantum dot is provided to reduce cost and improve yield by obtaining single wavelength laser only through changing a mask without new technology development. A semiconductor laser structure including a quantum dot includes a lower clad layer, a plurality of gratings(320), a lower ridge waveguide(330), and an upper clad layer. The lower and upper clad layers are formed in a p+ or n+ clad layer. The lower and upper clad layers are different types from each other. A period of the grating(320) is integer times of T=(lambda/2)n. The grating(320) is arranged to form a predetermined angle with the lower ridge waveguide(330) for forming the lower ridge waveguide(330) in a direction for cleaving.
    • 提供包括量子点的半导体激光器结构,通过仅通过改变掩模即可获得单波长激光来降低成本并提高产量,而无需新技术开发。 包括量子点的半导体激光器结构包括下包层,多个光栅(320),下脊波导(330)和上包覆层。 下包层和上覆盖层形成在p +或n +覆层中。 下层和上层包层彼此不同。 光栅(320)的周期是T =(λ/ 2)n的整数倍。 光栅(320)被布置成与下脊波导(330)形成预定角度,用于在切割的方向上形成下脊波导(330)。