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    • 61. 发明申请
    • COMPONENT HAVING A MICROMECHANICAL MICROPHONE STRUCTURE, AND METHOD FOR ITS PRODUCTION
    • 具有微机电麦克风结构的组分及其生产方法
    • US20120091544A1
    • 2012-04-19
    • US13259570
    • 2010-04-07
    • Frank ReichenbachThomas BuckJochen ZoellinFranz LaermerUlrike ScholzKathrin van TeeffelenChristina Leinenbach
    • Frank ReichenbachThomas BuckJochen ZoellinFranz LaermerUlrike ScholzKathrin van TeeffelenChristina Leinenbach
    • H01L29/84H01L21/02
    • H04R19/005Y10T428/31663
    • A component having a robust, but acoustically sensitive microphone structure is provided and a simple and cost-effective method for its production. This microphone structure includes an acoustically active diaphragm, which functions as deflectable electrode of a microphone capacitor, a stationary, acoustically permeable counter element, which functions as counter electrode of the microphone capacitor, and an arrangement for detecting and analyzing the capacitance changes of the microphone capacitor. The diaphragm is realized in a diaphragm layer above the semiconductor substrate of the component and covers a sound opening in the substrate rear. The counter element is developed in a further layer above the diaphragm. This further layer generally extends across the entire component surface and compensates level differences, so that the entire component surface is largely planar according to this additional layer. This allows a foil to be applied on the layer configuration of the microphone structures exposed in the wafer composite, which makes it possible to dice up the components in a standard sawing process.
    • 提供具有坚固但声学敏感的麦克风结构的部件,并且是用于其生产的简单且成本有效的方法。 这种麦克风结构包括一个声学活动的隔膜,它起着麦克风电容器的可偏转电极的作用,一个固定的,声学可渗透的计数元件,起着麦克风电容器的对电极的作用,以及用于检测和分析麦克风的电容变化的装置 电容器。 膜片在元件的半导体衬底上方的隔膜层中实现,并覆盖衬底后部的声音开口。 计数元件在膜片上方的另一层中显影。 该另一层通常跨越整个组件表面延伸并补偿水平差,使得根据该附加层,整个组件表面大部分是平面的。 这允许将箔施加在暴露在晶片复合材料中的麦克风结构的层结构上,这使得可以在标准锯切工艺中引导部件。
    • 70. 发明授权
    • Device and method for determining the lateral undercut of a structured surface layer
    • 用于确定结构化表面层的横向底切的装置和方法
    • US06911348B1
    • 2005-06-28
    • US09674984
    • 2000-03-13
    • Volker BeckerFranz LaermerAndrea Schilp
    • Volker BeckerFranz LaermerAndrea Schilp
    • B81C99/00H01L21/02H01L21/66H01L21/00
    • H01L28/10B81C99/004H01L22/12
    • A device and a method for determining the extent of an at least locally lateral undercut of a structured surface layer on a sacrificial layer. The structured surface layer for this purpose locally has at least one passive electronic component, using which a physical measured quantity can be determined, which is proportional to the extent of the lateral undercut. The method for generating this device proposes, initially on the structured surface layer in a first etching method, to provide the surface layer at least locally with a structuring having trenches and, in a second etching method, proceeding from the trenches, to undertake at least locally a lateral undercut of the structured surface layer. In this context, in the first etching method on the surface layer, locally at least one passive electronic component is additionally delineated out, which in response to a subsequent undercutting of the surface layer is also undercut. The physical measured quantity is determined without contact, preferably by sending an electromagnetic emission into the passive component.
    • 用于确定牺牲层上的结构化表面层的至少局部侧向底切的程度的装置和方法。 用于此目的的结构化表面层在本地具有至少一个无源电子部件,利用该被动电子部件可以确定与外侧底切的程度成比例的物理测量量。 用于产生该装置的方法首先在第一蚀刻方法中在结构化表面层上提出至少局部地提供具有沟槽的结构的表面层,并且以第二蚀刻方法从沟槽进行至少承受 局部地是结构化表面层的横向底切。 在本文中,在表面层上的第一蚀刻方法中,局部地附加地描绘了至少一个无源电子部件,其响应于表面层的随后的底切也被切削。 物理测量的数量是在不接触的情况下确定的,优选地通过向无源部件发送电磁辐射。