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Reliability is always one of the key success factors to gain customer satisfaction in microphone products, which will be equipped and used in various environmental conditions. There are frequent challenges and risks to damage microphone physically or degrade the acoustic performance in the process of Micro-Electro Mechanical Systems (MEMS) microphones’ mass production and the final assembly of end products. For example, dust obstacles, oil stain, electrostatic discharge damage in the machine and material defects due to thermal cycle during the reflow soldering.

Therefore, the robustness is always Fortemedia’s quality target regardless of users’ misuse or careless operation of its MEMS microphone solution. With professionally persistent efforts in design, validation, characterisation and quality assurance in manufacturing, Fortemedia’s microphone solution, composed of the IC and MEMS sensor inside, passes the following stringent reliability test in the industry:

• HTOL (High Temperature Operating Life)
• LTOL (Low Temperature Operating Life)
• HAST (Temperature with Humidity with Bias)
• Drop Test
• Mechanical Shock Test
• Vibration Test
• Accelerated Life Test
• Air Pressure Test

Air Pressure Requirement:

Regarding air pressure immunity, Fortemedia has launched a MEMS microphone solution that can achieve the harshest requirements of air pressure in field. Packaged in 2.75×1.85×0.90mm³ microphone footprint and 0.25mm aperture, Fortemedia’s microphone IC, FL216C and MEMS sensor, TMS02BD has passed tier-one customer’s air pressure test conditions, making Fortemedia the pioneer vendor upon global OEM’s high-standard acceptance. Aside from passing air pressure requirement, Fortemedia’s microphone solution also passed industrial stringent reliability test. Besides that, Fortemedia’s IC and MEMS sensor also provide the tight variation of phase matching and sensitivity matching, facilitating Fortemedia’s voice processing in performance, quality and consistency.

Fortemedia iSAM Business Model

As audio technology and voice-controlled devices have become more ubiquitous, more applications are adopting higher performance MEMS microphones, which use acoustic sensors made on semiconductor production with silicon wafers. This technology enables smaller microphones with better sensitivity and clear sound quality.

Fortemedia’s New Technology

iSAM® business model combines software algorithm and array microphone to imitate the human brain and ears, enabling microphones with smart computing algorithm in this Artificial Intelligence era.

Fortemedia MEMS Sensor Technology

Fortemedia has been exploring the MEMS microphone sensor technology since 2017 and has sold more than 1,000 million units, ranking among the top 3 in microphone sensor and ASIC design. Fortemedia’s microphone sensor and ASIC meet the reliability requirement of international customers, such as top smartphone and notebook brands, as well as global mobile operators.

This year, Fortemedia aims to penetrate global smartphone makers with its latest MEMS sensor, the TMS02 series, paired with its own ASIC, fitting into tiny a microphone footprint down to 2.75 x 1.85 x 0.90mm³ and combing high performance and reliability.

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