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MPW Design Introduction Course - Module 4
Process Process
DescriptionDescription
Part II
Tyre pressure sensor(SensoNor)
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Contents Process Description, Part IProcess Description, Part I Cross section overviewCross section overview Key process featuresKey process features MPW process step-by-stepMPW process step-by-step
Process Description, Part II Absolute design limitations Process control monitors Test data
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Absolute design limitations
To avoid breakage during fabrication
Maximum allowed stress 500 MPa under
the following conditions:
2000 g acceleration
1 bar (0.8 bar) pressure difference
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Process control monitors Test dies
electrical parameters mechanical dimensions
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Process control monitors
Product wafers Visual inspection Oxide thickness Diaphragm thickness
Test wafers Sheet resistivity Film thickness
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Test data Automated test data collection Measurement database Process monitoring / SPC
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SPC
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Test certificate
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Chapter 4:MPW Process Description
End of this chapter Questions or comments?