摘要:
A method for manipulating MEMS devices integrated on a semiconductor wafer and intended to be diced one from the other includes bonding of the semiconductor wafer including the MEMS devices on a support with interposition of a bonding sheet. The method may also include completely cutting or dicing of the semiconductor wafer into a plurality of independent MEMS devices, and processing the MEMS devices diced and bonded on the support in a treatment environment for semiconductor wafers. A support for manipulating MEMS devices is also included.
摘要:
A process for manufacturing a MEMS device, wherein a bottom silicon region is formed on a substrate and on an insulating layer; a sacrificial region of dielectric is formed on the bottom region; a membrane region, of semiconductor material, is epitaxially grown on the sacrificial region; the membrane region is dug down to the sacrificial region so as to form through apertures; the side wall and the bottom of the apertures are completely coated in a conformal way with a porous material layer; at least one portion of the sacrificial region is selectively removed through the porous material layer and forms a cavity; and the apertures are filled with filling material so as to form a monolithic membrane suspended above the cavity. Other embodiments are directed to MEMS devices and pressure sensors.
摘要:
The described process allows trenches to be etched in a structure comprising a support substrate and a multilayer, formed on the substrate, for the definition of wave guides of an integrated optical device and comprises a selective plasma attack in the multilayer through a masking structure that leaves uncovered areas of the multilayer corresponding to the trenches to be etched. Such a masking structure is obtained by forming a mask of metallic material on the multilayer that leaves uncovered the areas corresponding to the trenches to be etched and forming a mask of non-metallic material, for example photoresist, on it that leaves uncovered regions comprising at least part of the areas and an edge portion of the mask of metallic material.
摘要:
The described process allows trenches to be etched in a structure comprising a support substrate and a multilayer, formed on the substrate, for the definition of wave guides of an integrated optical device and comprises a selective plasma attack in the multilayer through a masking structure that leaves uncovered areas of the multilayer corresponding to the trenches to be etched. Such a masking structure is obtained by forming a mask of metallic material on the multilayer that leaves uncovered the areas corresponding to the trenches to be etched and forming a mask of non-metallic material, for example photoresist, on it that leaves uncovered regions comprising at least part of the areas and an edge portion of the mask of metallic material.
摘要:
The method is based on the use of an etching mask comprising silicon carbide or titanium nitride for removing a sacrificial region. In case of manufacture of integrated semiconductor material structures, the following steps are performed: forming a sacrificial region of silicon oxide on a substrate of semiconductor material; growing a pseudo-epitaxial layer; forming electronic circuit components; depositing a masking layer comprising silicon carbide or titanium nitride; defining photolithographically the masking layer so as to form an etching mask containing the topography of a microstructure to be formed; with the etching mask, forming trenches in the pseudo-epitaxial layer as far as the sacrificial region so as to laterally define the microstructure; and removing the sacrificial region through the trenches.
摘要:
The method is based on the use of a silicon carbide mask for removing a sacrificial region. In case of manufacture of integrated semiconductor material structures, the following steps are performed: forming a sacrificial region of silicon oxide on a substrate of semiconductor material; growing a pseudo-epitaxial layer; forming electronic circuit components; depositing a silicon carbide layer; defining photolithographically the silicon carbon layer so as to form an etching mask containing the topography of a microstructure to be formed; with the etching mask, forming trenches in the pseudo-epitaxial layer as far as the sacrificial region so as to laterally define the microstructure; and removing the sacrificial region through the trenches.
摘要:
A process for manufacturing a MEMS device, wherein a bottom silicon region is formed on a substrate and on an insulating layer; a sacrificial region of dielectric is formed on the bottom region; a membrane region, of semiconductor material, is epitaxially grown on the sacrificial region; the membrane region is dug down to the sacrificial region so as to form through apertures; the side wall and the bottom of the apertures are completely coated in a conformal way with a porous material layer; at least one portion of the sacrificial region is selectively removed through the porous material layer and forms a cavity; and the apertures are filled with filling material so as to form a monolithic membrane suspended above the cavity.