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Yole Développement is proud to publish the reverse costing report of the Knowles SPM0408 MEMS Microphone. Based on a complete teardown process the report provides an estimation of the production cost as well as the selling price of the product.
Mostly used in cell phones, the Knowles MEMS microphones have been shipped at more than 1 billion units since their introduction. They use a specific surface mount designed FR4 type package, containing 2 separate dies : a capacitive MEMS microphone and an ASIC for signal amplification. Since the last generation, several changes have been realized like the use of Deep Reactive Ion Etching for the MEMS cavity instead of traditional KOH etching.
This report provides complete teardown and cost estimation of the component with:
• Detailed teardown photos
• Material analysis
• Schematic assembly description
• Manufacturing Process Flow
• In-depth economical analysis
• Manufacturing cost breakdown
• Selling price estimation