Patent ID: 11898899
Assignee: MIRAEX SA
Field: Micro-structural and nano-technology (Chemistry)
Classification: CPC B  G  H | IPC B  G

Claim 11:
12. A method for manufacturing one or more MOMS sensors, comprising:
manufacturing one or more sensor wafers, comprising:
depositing an SiO2 and an Si(x)N(y) layer onto a first Si wafer;
patterning SiN arms into the Si(x)N(y) layer;
protecting the Si(x)N(y) layer with a first protection layer of at least 100 nm;
stripping the SiO2 and Si(x)N(y) layers from a first side of the first Si wafer;
patterning Si masses and etching the patterned Si masses from the first Si wafer;
stripping the SiO2 layer and the first protection layer from a second, opposing side of the first Si wafer for releasing the etched masses and the patterned SiN arms; and

manufacturing one or more fiber wafers, comprising:
etching one or more cavities into a second Si wafer;
protecting the etched cavities with a second protection layer of at least 100 nm;
etching fiber passthroughs through the second Si wafer;
stripping the second protection layer from the second Si wafer;
coating parylene on the second Si wafer for bonding with a sensor wafer; and

aligning and bonding the sensor wafers and the fiber wafers; and
bonding cap Si wafers on the sensor wafers for forming encapsulated cavities comprising the etched Si masses.