Abstract:
A method for sealing through-holes in a material via material diffusion, without the deposition of a sealant material, is disclosed. The method is well suited to the fabrication and packaging of microsystems technology-based devices and systems. In some embodiments, the method comprises forming sacrificial material release through-holes through a structural layer, removing the sacrificial material via an etch that etches the sacrificial material through the release through-holes, and sealing of the release through-holes via material diffusion.
Abstract:
A manufacturing method for a micromechanical semiconductor element includes providing on a semiconductor substrate a patterned stabilizing element having at least one opening. The opening is arranged such that it allows access to a first region in the semiconductor substrate, the first region having a first doping. Furthermore, a selective removal of at least a portion of the semiconductor material having the first doping out of the first region of the semiconductor substrate is provided. In addition, a membrane is produced above the first region using a first epitaxy layer applied on the stabilizing element. In a further method step, at least a portion of the first region is used to produce a cavity underneath the stabilizing element. In this manner, the present invention provides for the production of the patterned stabilizing element by means of a second epitaxy layer, which is applied on the semiconductor substrate.
Abstract:
A manufacturing method for a micromechanical semiconductor element includes providing on a semiconductor substrate a patterned stabilizing element having at least one opening. The opening is arranged such that it allows access to a first region in the semiconductor substrate, the first region having a first doping. Furthermore, a selective removal of at least a portion of the semiconductor material having the first doping out of the first region of the semiconductor substrate is provided. In addition, a membrane is produced above the first region using a first epitaxy layer applied on the stabilizing element. In a further method step, at least a portion of the first region is used to produce a cavity underneath the stabilizing element. In this manner, the present invention provides for the production of the patterned stabilizing element by means of a second epitaxy layer, which is applied on the semiconductor substrate.
Abstract:
A method for manufacturing a semiconductor substrate of a first concentration type is described, which comprises at least a buried insulating cavity, comprising the following steps: forming on the semiconductor substrate a plurality of trenches, forming a surface layer on the semiconductor substrate in order to close superficially the plurality of trenches forming in the meantime at least a buried cavity in correspondence with the surface-distal end of the trenches.
Abstract:
A method for manufacturing a semiconductor substrate of a first concentration type is described, which comprises at least a buried insulating cavity, comprising the following steps: forming on the semiconductor substrate a plurality of trenches, forming a surface layer on the semiconductor substrate in order to close superficially the plurality of trenches forming in the meantime at least a buried cavity in correspondence with the surface-distal end of the trenches.
Abstract:
Proposed is a method for manufacturing micromechanical sensors and sensors manufactured by this method, where openings are introduced into a semiconductor substrate. After the openings are introduced into the semiconductor substrate, a subsequent temperature treatment is carried out, in which the openings are converted into voids in the depth of the substrate.
Abstract in simplified Chinese:本发明提供一种用于具有一倾斜的光学窗的一微机械设备的制造方法,以及一相对应的微机械设备。该制造方法包含以下步骤:提供具有一前侧(V1)及一后侧(R1)的一第一基板(W1),该第一基板(W1)具有一切口(L11;L11';L11";L11''';L11'''';K1;K2);在该前侧(V1)上施加一第二基板(W2),其中该第二基板(W2)为热可变形的且在该切口(L11;L11';L11";L11''';L11'''';K1;K2)上方具有一第一通孔(L21),该第一通孔(L21)与该切口(L11;L11';L11";L11''';L11'''';K1;K2)相比具有一较小的侧向延伸;在该第一通孔(L21)上方或下方的该第二基板(W2)上形成一折叠区(K;K'),该折叠区(K;K')系配置在相对于该第一基板(W1)的一第一位置中;使该第二基板(W2)经受热变形,其中使该折叠区(K;K')到达该切口(L11)内的一第二位置中,该第二位置相对于该第一位置为倾斜的且可选择地降低至该切口(L11;L11';L11";L11''';L11''''; K1;K2)中;自该第二基板(W2)移除该折叠区(K;K');及在倾斜的该第二位置中将光学窗(FE)附接至该第一通孔(L21)上方或下方的该第二基板(W2)上。