MEMS Microphones: A Global Technology, Industry and Market Analysis

Date: February 1, 2013
Pages: 113
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Publisher: Innovative Research & Products, Inc
Report type: Strategic Report
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MEMS Microphones: A Global Technology, Industry and  Market Analysis
Silicon microphones are among a broad range of devices known as micro-electromechanical systems (MEMS), an emerging field in which various sensors and mechanical devices are constructed on a single wafer using processes developed for making integrated circuits (ICs). The chief advantage of micromachining silicon microphones is cost. Several sensors can be processed on a chip simultaneously and can be integrated with passive and active electronic devices.

One of the most notable differences between a MEMS microphone and an electret condenser microphone (ECM) is the difference in size. The back plate and diaphragm in a MEMS microphone are approximately 10x smaller than those in the smallest ECM. This inherent small size allows a packaged MEMS microphone to start at approximately the same size as the smallest ECM, with the potential to shrink much further as MEMS microphone technology matures. A smaller microphone consumes less printed circuit board (PCB) space and requires smaller height allowances, making it ideal for space-constrained designs

MEMS microphones are more compact than traditional microphone systems because they capture sound and convert it to a digital signal on the same chip. When sound waves hit the microphone's membrane – a thin metal mesh in the middle of the chip – it vibrates, producing a voltage that contains information about the analog sound signal. But since the analog signal is produced and converted to a digital signal on the same chip, it never has to experience the harsh electromagnetic environment outside the circuit. Further, because interference is less of an issue, insulation is not needed. This allows engineers to place the microphone anywhere that a chip can fit, for example, into a laptop in which multiple microphones can even fit in the bezel surrounding a laptop's monitor.

MEMS microphone solutions developed on the CMOS (complimentary metal oxide semiconductors) MEMS platform frees consumer electronic device designers and manufacturers from many of the problems associated with ECMs. CMOS MEMS microphones integrate an analogue-to-digital converter on the chip, creating a microphone with a robust digital output. Since the majority of portable applications will ultimately convert the analogue output of the microphone to a digital signal for processing, the system architecture can be made completely digital, removing noise-prone analogue signals from the circuit board and simplifying the overall design.

When electronic circuitry is fabricated within microns of the acoustic structure, the short trace lengths lead to an inherently improved ability to mitigate RF noise. The CMOS MEMS microphone has a very short diaphragm-to-preamp distance and better input-to output-isolation due to the on-chip amplification stage, as opposed to the FET in an ECM. Since there is better power supply and output signal isolation, as well as a shorter distance between the diaphragm and the preamplifier, there is less chance of coupling EM fields into the microphone.

Many of these new “miniature” silicon microphones for consumer and computer communication devices are approximately one-half the size and operate on just one-third the power of conventional microphones.

STUDY GOALS AND OBJECTIVES

CMOS MEMS microphones also solve many of the mechanical design and manufacturing challenges associated with using an ECM. First, the monolithic nature of the CMOS MEMS microphone enables a footprint and height that can be less than half that of a traditional ECM. Second, the small size and mass of the CMOS MEMS microphone diaphragm, which has a diameter of less than 0.5mm, leads to improved vibration immunity as compared with an ECM, which has a diaphragm diameter of 4mm-6mm. Third, since CMOS MEMS microphones are fabricated using standard CMOS materials and processes, they are inherently able to withstand the high temperatures required for surface mounting. Therefore, no mechanical interconnect is required, which leads to another significant reduction in overall height of the microphone system. Finally, the surface-mount and pick-and-place compatibility of the CMOS silicon microphone reduces cost by eliminating manual assembly, thereby improving reliability, manufacturing throughput and yield.

Therefore, this study focuses on MEMS microphones that can be used in mobile phones, digital cameras, camcorders, laptops, automotive hands-free calling and hearing aids. Production will be low-cost and high-volume.

This study focuses on providing market data about the size and growth of the MEMS microphones application segments, new developments including a detailed patent analysis, company profiles and industry trends. This report also provides a detailed and comprehensive multi-client study of the market in North America, Europe, Japan, and the rest of the world (ROW) for MEMS microphones and potential business opportunities.

The objectives include thorough coverage of the underlying economic issues driving the MEMS microphones business, as well as assessments of new advanced MEMS microphones that are being developed. Another important objective is to provide realistic market data and forecasts for MEMS microphones.

REASONS FOR DOING THE STUDY

Most microphones in consumer electronics (CE) products today are based on technology that has remained fundamentally unchanged for 50 years. Problems with the ECMs include noise, size and manual assembly.

The main challenge for the audio system designer is to achieve the lowest overall noise in the system design. The noise of an ECM has several sources: electrical noise resulting from fluctuations in the bias voltage, noise of the field effect transistor (FET), board noise, acoustic self-noise of the diaphragm, and external electromagnetic (EM) and radio frequency (RF) fields that are coupled into the high impedance input of the FET.

The MEMS microphone exhibits many qualities that make it ideal for integrated microphone array applications in laptop and desktop computers. Most importantly, the robust digital output is immune to the EM or RF interference that can prohibit optimal acoustic placement of a standard analog-output microphone in a laptop computer. The small footprint and thinness also increase the flexibility of the microphone placement.

The widespread availability of well maintained CMOS models and simulation tools results in products that can go from design to prototype in a matter of weeks. Leveraging the economies of scale, high quality and maturity of the semiconductor industry, CMOS MEMS provides cost-effective solutions that can be incorporated into mobile phones, digital devices and automotive accessories. iRAP did a detailed market study in 2007. Since then, numerous changes have happened, with several new applications emerging for MEMS microphones. The market has grown from over hundred million ranges in 2007 to almost half a billion dollar range now.

Therefore, iRAP conducted a detailed market research and industry analysis in this area and has produced this detailed technology and market update as well as industry analysis in this report.

CONTRIBUTIONS OF THE STUDY

This study segmented markets into six applications for MEMS microphone products. The first application consists of mobile phones; the second is laptops tablets; the third is camcorders and digicams; the forth is hearing aids; the fifth is headphones and the last is automotive hands-free calling. Manufacturers of MEMS microphones expect competition to persist and intensify in the future from a number of different sources.

The study is intended to benefit the existing manufacturers of mobile phones, digital cameras, camcorders, laptops, automobile hands-free calling devices and hearing aids, who seek to expand revenues and market opportunities through adding new technology such as MEMS microphones, which are positioned to become a preferred solution over conventional ECM applications. This study also will benefit existing manufacturers of microphones as well as manufacturers of microphones who deal with new types of MEMS technology for mobile phones, digital cameras, camcorders, laptops, automobile hands-free calling and hearing aids.

This report provides the most thorough and up-to-date assessment that can be found anywhere on the subject. The study also provides extensive quantification of the many important facets of market developments in MEMS microphones all over the world. This, in turn, contributes to the determination of what kinds of strategic responses companies may adopt in order to compete in this dynamic market.

The iRAP study focuses on MEMS microphones’ market size and growth, new developments, including a detailed patent analysis, company profiles and industry trends. Another contribution of this report is to provide a detailed and comprehensive study of the market in North America, Europe, Japan and the rest of the world (ROW) for MEMS microphones and potential future business opportunities. These markets have also been estimated according to types of integration, i.e. single chip vs two-chip; and according to the application segments.

SCOPE AND FORMAT

The market data contained in this report quantifies opportunities for MEMS microphones. In addition to product types, it also covers the many issues concerning the merits and future prospects of the MEMS microphone business, including corporate strategies, information technologies, and the means for providing these highly advanced products and service offerings. It also covers in detail the economic and technological issues regarded by many as critical to the industry’s current state of change. The report provides a review of the MEMS microphones industry and its structure, and the many companies involved in providing these products. The competitive position of the main players in the MEMS microphones market and the strategic options they face are also discussed, as well as such competitive factors as marketing, distribution and operations.

TO WHOM THE STUDY CATERS

The study will benefit existing manufacturers of hand-held electronic consumer products like mobile phones, laptops, etc., who seek to enhance revenues and market opportunities by expanding to new technologies such as MEMS microphones, which are positioned to become a preferred solution for many types of consumer and communication audio applications. This study also will benefit manufacturers of conventional microphones who deal with new types of technology for communication audio applications.

This study provides a technical overview of MEMS microphones, especially recent technology developments and existing barriers. Therefore, audiences for this study include marketing executives, business unit managers and other decision makers in companies that produce and market mobile phones, digital cameras, camcorders, laptops, automobile hands-free calling devices and hearing aids, as well as those in companies peripheral to this business.

REPORT SUMMARY

Six major applications are discussed in this report, which will create most of the market for MEMS microphones over the next five years. These are mobile phones, laptops and tablets, camcorders and digicams, hearing aids, head phones and automotive hands-free calling.

Manufacturers of MEMS microphones expect competition to persist and intensify in the future from a number of different sources. Microphones are facing competition in a new, rapidly evolving and highly competitive sector of the audio communication market. Increased competition could result in reduced prices and gross margins for microphone products and could require increased spending by research and development, sales and marketing and customer support.

Micro-machined microphone chips can match and extend the performance of existing devices, for instance, by using sensor arrays. Silicon microphones also offer advantages to the OEM in the form of improved manufacturing methods (reliability, yield, assembly cost) combined with robustness. They also offer additional functionality, such as the ability to incorporate multiple microphones into portable electronic devices for noise suppression and beam forming.

The potential for smaller footprint components and resistance to electromagnetic interference also supports new cell phone designs. Moreover, MEMS microphones meet price points set by electret microphones by leveraging established high-volume silicon manufacturing processes. This combination of size, performance and functionality, and low cost are highly desirable for OEMs and consumers alike.

The range of possible applications of these microphones derives from their important advantages as compared to conventional ECM technologies. Based on silicon MEMS technology, the new microphone achieves the same acoustic and electrical properties as conventional microphones, but is more rugged and exhibits higher heat resistance. These properties offer designers of a wide range of products greater flexibility and new opportunities to integrate microphones.

Major findings of this report are:
  • The MEMS microphones market is an attractive, and still growing, multimillion-dollar market characterized by very high production volumes of MEMS microphones that are extremely reliable and low in cost.
  • In 2012, the global market for MEMS microphones has reached over $422 million and will increase to $865 million by 2017 with an annual average growth rate of 15.4%.
  • Mobile phones will have the largest share in 2012 followed by laptops/tablets and camcorders/digicams.
  • From 2012 to 2017, the largest growth rate will be for mobile phones – as much as 53% AAGR from 2012 to 2017.
  • Regionally, North America has about 25.3% of the market in 2012, followed by Europe at 19.7%, Japan at 15.7%, and the rest of world (ROW) at 39.5%.
  • By 2017, MEMS microphones will achieve penetrations of 92% in the mobile phone market segment and 95% in PDAs, digicams and camcorders markets.
  • In terms of technology, the largest share will be for two-chip integration.
  • There are over a dozen players who are sharing the global market in 2012. They are fabless and depend upon a variety of fabrication processes to construct MEMS microphones. By 2017, the number of players is likely to double due to attractive growth potential for the products.
INTRODUCTION

STUDY GOALS AND OBJECTIVES
REASONS FOR DOING THE STUDY
CONTRIBUTIONS OF THE STUDY
SCOPE AND FORMAT
METHODOLOGY
INFORMATION SOURCES
AUDIENCES FOR THE STUDY
AUTHOR’S CREDENTIALS

EXECUTIVE SUMMARY

INDUSTRY OVERVIEW

BACKGROUND OF MEMS MICROPHONES
BACKGROUND OF MEMS MICROPHONES (CONTINUED)
MEMS MICROPHONE CHIP
  MEMS ADVANTAGES
MEMS MICROPHONE APPLICATIONS AND MARKETS
  FIGURE 1 MEMS MICROPHONES MARKET SEGMENTS BY APPLICATION, 2012-2017
  MOBILE PHONES, PDAS, DIGITAL CAMERAS, CAMCORDERS
  MOBILE PHONES, PDAS, DIGICAMS, CAMCORDERS (CONTINUED)
  MOBILE PHONES, PDAS, DIGICAMS, CAMCORDERS (CONTINUED)
  TABLE 1 FORECAST FOR MEMS MICROPHONES IN MOBILE PHONES AND DIGITAL CAMERAS
  LAPTOPS
  LAPTOPS (CONTINUED)
  TABLE 2 MARKET FOR MEMS MICROPHONES IN LAPTOPS, 2012 AND 2017
  AUTOMOTIVE HANDS-FREE COMMUNICATION SYSTEMS
  AUTOMOTIVE HANDS-FREE COMMUNICATION SYSTEMS (CONTINUED)
  AUTOMOTIVE HANDS-FREE COMMUNICATION SYSTEMS (CONTINUED)
  AUTOMOTIVE HANDS-FREE COMMUNICATION SYSTEMS (CONTINUED)
  TABLE 3 FORECASTED USE OF MEMS MICROPHONES IN AUTOMOTIVE HANDS-FREE COMMUNICATION SYSTEMS, 2012 AND 2017
  HEARING AIDS
  HEARING AIDS (CONTINUED)
  TABLE 4 FORECASTED USE OF MEMS MICROPHONES IN HEARING AIDS,
  INDUSTRY STRUCTURE
  INDUSTRY STRUCTURE (CONTINUED)
  TABLE 5 FOUNDRIES WITH MEMS MICROPHONE MANUFACTURING
  CAPABILITIES IN 2012
  INDUSTRY DYNAMICS AND GLOBAL MARKET
  MARKET ACCORDING TO TECHNOLOGY
  ONE-CHIP CMOS-MEMS TECHNOLOGY FOR MICROPHONES
  ONE-CHIP CMOS-MEMS TECHNOLOGY FOR MICROPHONES (CONTINUED)
  ONE-CHIP CMOS-MEMS TECHNOLOGY FOR MICROPHONES (CONTINUED)
  FIGURE 2 SINGLE-CHIP DESIGN OF MEMS MICROPHONES
  TWO-CHIP TECHNOLOGY FOR MICROPHONES
  FIGURE 3 TWO-CHIP DESIGN OF MEMS MICROPHONES
  TABLE 6 SUMMARY OF GLOBAL MARKET FOR MEMS MICROPHONES BY TECHNOLOGY, 2012 AND 2017
  FIGURE 4 PERCENTAGE SHARE OF GLOBAL MARKET FOR MEMS MICROPHONES BY TECHNOLOGY, 2012 AND 2017
  MARKET ACCORDING TO APPLICATIONS
  TABLE 7 SUMMARY OF GLOBAL MARKET FOR MEMS MICROPHONES BY APPLICATION, 2012 AND 2017
  FIGURE 5 PERCENTAGE SHARE OF GLOBAL MARKET FOR MEMS MICROPHONES BY APPLICATION, 2012 AND 2017

TECHNOLOGY OVERVIEW

MICROPHONE TYPES AND CHARACTERISTICS
  AUDIO MICROPHONES
  CONDENSER MICROPHONES
  UNIDIRECTIONAL AND OMNIDIRECTIONAL MICROPHONES
  UNIDIRECTIONAL AND OMNI-DIRECTIONAL MICROPHONES (CONTINUED)
  MEMS MICROPHONES
  TABLE 8 FORMULAS USED TO DEFINE AUDIO QUALITY/CHARACTERSTICS OF MICS
  TABLE 8 (CONTINUED)
  MICROMACHINING TECHNOLOGY
  TYPES OF MICROPHONES
  CAPACITIVE MICROPHONES
  PIEZORESISTIVE MICROPHONES
  PIEZOELECTRIC MICROPHONES
  OPTICAL MICROPHONES
  FET MICROPHONES
  TYPICAL FABRICATION PROCESSES
  MEMS MICROPHONE FABRICATION
  FIGURE 6 PROCESSING STEPS FOR CMOS-MEMS MICROPHONES
  FIGURE 7 LAYOUT OF SERPENTINE MESH DESIGN SHOWING TWO UNIT CELLS IN A MEMS MICROPHONE
  TABLE 9 PROCESSES FOLLOWED BY MAJOR PRODUCERS IN FABRICATING MEMS MICROPHONES
  TABLE 9 (CONTINUED)
  TABLE 9 (CONTINUED)
  TABLE 9 (CONTINUED)
  TABLE 9 (CONTINUED)
  WAFER FABRICATION VIA ETCHING
  DRY ETCHING IN MEMS MANUFACTURING
  DRY ETCHING IN MEMS MICROPHONES (CONTINUED)
  WET ETCHING IN MEMS MICROPHONES
  WET ETCHING IN MEMS MICROPHONES (CONTINUED)
  TABLE 10 KEY TERMINOLOGIES USED IN MANUFACTURING OF MEMS MICROPHONES
  TABLE 10 KEY TERMINOLOGIES IN MANUFACTURING OF MEMS MICROPHONES (CONTINUED)
  TABLE 10 KEY TERMINOLOGIES IN MANUFACTURING OF MEMS MICROPHONES (CONTINUED)
  COMPARING MEMS AND INTEGRATED CIRCUIT FABRICATION PROCESSES
  COMPARING MEMS AND INTEGRATED CIRCUIT FABRICATION PROCESSES (CONT'D)
  COMPARING MEMS AND INTEGRATED CIRCUIT FABRICATION PROCESSES (CONT'D)
  PACKAGING
  TABLE 11 KEY TERMINOLOGIES USED IN PACKAGING OF MEMS MICROPHONES
  TABLE 11 KEY TERMINOLOGIES USED IN PACKAGING OF MEMS MICROPHONES (CONTINUED)
  MANUFACTURING: MEMS MICROPHONE BENEFITS FROM IC CHIP PROCESS
  MANUFACTURING ON THE PRINCIPLE OF IC CHIP MANUFACTURING (CONTINUED)
  TABLE 12 TECHNOLOGY USED BY MANUFACTURERS OF SURFACE-MOUNTABLE, CHIP-SIZE PACKAGING FOR MEMS MICROPHONES
  TABLE 13 CHARACTERISTICS OF COMMERCIALLY AVAILABLE MEMS MICROPHONES
  ELECTRONIC CHIP INTEGRATION IN MEMS MICROPHONES
  TABLE 14 KEY TERMINOLOGIES USED TO DEFINE TYPES OF ELECTRONIC CIRCUITS INTEGRATED IN MEMS MICROPHONES
  MEMS MICROPHONE CONSTRUCTION
  DIAPHRAGMS
  AIR GAP
  CHARACTERISTICS OF MEMS MICROPHONES
  CURRENT MATERIALS USED IN MEMS MICROPHONES
  FABRICATION TECHNIQUES
  FABRICATION TECHNIQUES (CONTINUED)
  SURFACE ACTIVITY

INDUSTRY STRUCTURE AND MARKETS

COMPETITIVE INNOVATION TRENDS
TABLE 15 COMPANY PRODUCT REFERENCE FOR MEMS MICROPHONES
TABLE 16 WORLD MARKET FOR MEMS MICROPHONE MANUFACTURERS
PARTNERSHIPS AND CONSOLIDATIONS
TABLE 17 ACQUISITIONS AND COLLABORATIONS AMONG MANUFACTURERS OF MEMS MICROPHONES FROM 2000 TO 2012
REGIONAL MARKET
TABLE 18 SUMMARY OF GLOBAL MARKET FOR MEMS MICROPHONES BY REGION
FIGURE 8 REGIONAL PERCENTAGES OF MARKET SHARE FOR MEMS MICROPHONES IN 2012 AND 2017

PATENTS AND PATENT ANALYSIS

LIST OF PATENTS
  MICRO-ELECTRO-MECHANICAL SYSTEMS (MEMS) DEVICE
  MEMS MICROPHONE AND METHOD FOR MANUFACTURING THE SAME
  MEMS MICROPHONE, PRODUCTION METHOD AND METHOD FOR INSTALLING
  MEMS MICROPHONE WITH SINGLE POLYSILICON FILM
  COMPONENT COMPRISING A MEMS MICROPHONE AND METHOD FOR THE PRODUCTION OF SAID COMPONENT
  MICROPHONE WITH BACKSIDE CAVITY THAT IMPEDES BUBBLE FORMATION
  MICRO-ELECTRO-MECHANICAL SYSTEMS (MEMS) PACKAGE
  PACKAGING STRUCTURE AND METHOD OF A MEMS MICROPHONE
  ELECTRICAL MODULE COMPRISING A MEMS MICROPHONE
  MICRO-ELECTROMECHANICAL SYSTEMS (MEMS) MICROPHONE AND METHOD OF MANUFACTURING THE SAME
  MEMS MICROPHONE WITH CAVITY AND METHOD THEREFOR
  MEMS DEVICE WITH SURFACE HAVING A LOW ROUGHNESS EXPONENT
  CONDENSER MICROPHONE AND PACKAGING METHOD FOR THE SAME
  METHOD OF FABRICATING AN ULTRA-SMALL CONDENSER MICROPHONE
  MICROPHONE WITH REDUCED PARASITIC CAPACITANCE
  MEMS MICROPHONE PACKAGE WITH RF INSENSITIVE MEMS MICROPHONE CHIP
  METHOD OF FABRICATING MICRO-ELECTROMECHANICAL SYSTEM MICROPHONE STRUCTURE
  MEMS DEVICE AND METHOD FOR FABRICATING THE SAME
  CARD TYPE MEMS MICROPHONE
  CALIBRATED MICROELECTROMECHANICAL MICROPHONE
  ALTERNATIVE SENSING CIRCUIT FOR MEMS MICROPHONE AND SENSING METHOD THEREOF
  METHOD FOR PACKAGING MICRO ELECTROMECHANICAL SYSTEMS MICROPHONE
  MICROPHONE APPARATUS
  INTEGRATED AUDIO CODEC WITH SILICON AUDIO TRANSDUCER
  PACKAGE AND PACKAGING ASSEMBLY OF MICROELECTROMECHANICAL SYSTEM MICROPHONE
  SYSTEM AND METHOD TO PROVIDE RF SHIELDING FOR A MEMS MICROPHONE PACKAGE
  SILICON BASED CONDENSER MICROPHONE AND PACKAGING METHOD FOR THE SAME
  MEMS MICROPHONE PACKAGE AND METHOD THEREOF
  OPTICAL SENSING IN A DIRECTIONAL MEMS MICROPHONE
  CHIP-SCALED MEMS MICROPHONE PACKAGE
  MEMS MICROPHONE MODULE AND METHOD THEREOF
  LEADFRAME PACKAGE FOR MEMS MICROPHONE ASSEMBLY
  PACKAGE STRUCTURE OF MEMS MICROPHONE
  MEMS MICROPHONE WITH A STACKED PCB PACKAGE AND METHOD OF PRODUCING THE SAME
  MICROELECTROMECHANICAL SYSTEM MICROPHONE FABRICATION INCLUDING SIGNAL PROCESSING CIRCUITRY ON COMMON SUBSTRATE
  MEMS MICROPHONE
  INDUCTOR-BASED MEMS MICROPHONE
  MICROPHONE SYSTEM FOR A COMMUNICATION DEVICE
  PATENT ANALYSIS
  TABLE 19 NUMBER OF U.S. PATENTS GRANTED TO COMPANIES MANUFACTURING MEMS MICROPHONES FROM 2007 THROUGH 2012
  PATENT ANALYSIS ACCORDING TO REGIONS
  TABLE 20 NUMBER OF U.S. PATENTS GRANTED BY ASSIGNED COUNTRY/REGION FOR MEMS MICROPHONES FROM JAN. 2007 TO 2012
  FIGURE 9 U.S. PATENTS GRANTED FOR MEMS MICROPHONES BY REGION FROM 2007 TO 2012

COMPANY PROFILES

ADVANCED SEMICONDUCTOR ENGINEERING, INC. (ASE GROUP)
AKUSTICA, INC
AAC TECHNOLOGIES
SYMPHONIX DEVICES, INC./MED-EL
THE RESEARCH FOUNDATION OF THE STATE UNIVERSITY OF NEW YORk
UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC

LIST OF TABLES

SUMMARY TABLE A: GLOBAL MARKET SIZE/PERCENTAGE SHARE FOR MEMS MICROPHONES, 2006 AND 2011 xvii
SUMMARY TABLE B: NORTH AMERICAN AND GLOBAL MARKETS FOR MEMS MICROPHONES, 2006 AND 2011 xviii
TABLE 1: FORECAST FOR MEMS MICROPHONES IN MOBILE PHONES, PDAS, DIGICAMS, CAMCORDERS, 2006-2011
TABLE 2: MARKET FOR MEMS MICROPHONES IN LAPTOPS, 2005, 2006 AND 2011
TABLE 3: FORECAST FOR MEMS MICROPHONES IN AUTOMOTIVE HANDS-FREE COMMUNICATION SYSTEMS
TABLE 4: FORECAST OF MEMS MICROPHONES IN HEARING AIDS 2006-2011
TABLE 5: SPECIFIC FOUNDRIES ASSOCIATED WITH MEMS MICROPHONE MANUFACTURING CAPABILITIES IN 2006
TABLE 6: SUMMARY OF GLOBAL MARKET FOR MEMS MICROPHONES BY TECHNOLOGY THROUGH 2011
TABLE 6: SUMMARY OF GLOBAL MARKET FOR MEMS MICROPHONES BY TECHNOLOGY THROUGH 2011 (CONTINUED)
TABLE 7: SUMMARY OF GLOBAL MARKET FOR MEMS MICROPHONES BY APPLICATION THROUGH 2011
TABLE 7: SUMMARY OF GLOBAL MARKET FOR MEMS MICROPHONES BY APPLICATION THROUGH 2011 (CONTINUED)
TABLE 8: FORMULAS USED TO DEFINE AUDIO QUALITY /CHARACTERSTICS OF MICROPHONES
TABLE 8: FORMULAS USED TO DEFINE AUDIO QUALITY /CHARACTERSTICS OF MICROPHONES (CONTINUED)
TABLE 9: SEQUENCES FOLLWED IN TYPICAL EIGHT FABRICATION PROCESSES OF MEMS MICROPHONES
TABLE 9: SEQUENCES FOLLWED IN TYPICAL EIGHT FABRICATION PROCESSES OF MEMS MICROPHONES (CONTINUED)
TABLE 9: SEQUENCES FOLLWED IN TYPICAL EIGHT FABRICATION PROCESSES OF MEMS MICROPHONES (CONTINUED)
TABLE 9: SEQUENCES FOLLWED IN TYPICAL EIGHT FABRICATION PROCESSES OF MEMS MICROPHONES (CONTINUED)
TABLE 9 SEQUENCES FOLLWED IN TYPICAL EIGHT FABRICATION PROCESSES OF MEMS MICROPHONES (CONTINUED)
TABLE 10: EXPLANATION OF KEY TERMINOLOGIES USED IN MANUFACTURING OF MEMS MICROPHONES
TABLE 10: EXPLANATION OF KEY TERMINOLOGIES USED IN MANUFACTURING OF MEMS MICROPHONES (CONTINUED)
TABLE 10 EXPLANATION OF KEY TERMINOLOGIES USED IN MANUFACTURING OF MEMS MICROPHONES (CONTINUED)
TABLE 11: EXPLANATION OF KEY TERMINOLOGIES USED IN PACKAGING OF MEMS MICROPHONES
TABLE 11: EXPLANATION OF KEY TERMINOLOGIES USED IN PACKAGING OF MEMS MICROPHONES (CONTINUED)
TABLE 12: TECHNOLOGY LISTING OF MANUFACTURERS OF SURFACE MOUNTABLE, CHIP-SIZE PACKAGE MEMS MICROPHONES
TABLE 13: TYPICAL SIZES OF COMMERCIALLY AVAILABLE MEMS MICROPHONES IN 2006
TABLE 14: KEY TERMINOLOGIES USED TO DEFINE TYPES OF ELECTRONIC CIRCUITS INTEGRATED IN MEMS MICROPHONES
TABLE 15: COMPANY PRODUCT REFERENCE FOR MEMS MICROPHONES
TABLE 16: PERCENTAGE SHARE OF WORLD MARKET OF TOP FIVE COMPANIES MANUFACTURING MEMS MICROPHONES IN 2006
TABLE 17: ACQUISITIONS AND COLLABORATIONS AMONG MANUFACTURERS OF MEMS MICROPHONES FROM 2000 TO 2006
TABLE 18: SUMMARY OF GLOBAL MARKET FOR MEMS MICROPHONES BY REGION THROUGH 2011
TABLE 19: NUMBER OF U.S. PATENTS GRANTED TO COMPANIES MANUFACTURING MEMS MICROPHONES FROM 2002 THROUGH 2006 (UPTO DEC 31)
TABLE 20: NUMBER OF U.S. PATENTS GRANTED BY ASSIGNED COUNTRY/REGION FOR MEMS MICROPHONES FROM JAN. 2002 TO 2006

LIST OF FIGURES

SUMMARY FIGURE A: GLOBAL MARKET FOR MEMS MICROPHONES BY APPLICATION IN 2012 AND 2017 xviii
SUMMARY FIGURE B: NORTH AMERICAN AND GLOBAL MARKET FOR MEMS MICROPHONES BY APPLICATION IN 2012 AND 2017 xix
FIGURE 1B MEMS MICROPHONES MARKET SEGMENTS BY APPLICATION, 2012-2017
FIGURE 2 SINGLE-CHIP DESIGN OF MEMS MICROPHONES
FIGURE 3 TWO-CHIP DESIGN OF MEMS MICROPHONES
FIGURE 4 PERCENTAGE SHARE OF GLOBAL MARKET FOR MEMS MICROPHONES BY TECHNOLOGY, 2012 AND 2017
FIGURE 4 PERCENTAGE SHARE OF GLOBAL MARKET FOR MEMS MICROPHONES BY TECHNOLOGY, 2012 AND 2017 (CONTINUED)
FIGURE 5 PERCENTAGE SHARE OF GLOBAL MARKET FOR MEMS MICROPHONES BY APPLICATION, 2012 AND 2017
FIGURE 5 PERCENTAGE SHARE OF GLOBAL MARKET FOR MEMS MICROPHONES BY APPLICATION, 2012 AND 2017 (CONTINUED)
FIGURE 6 PROCESSING STEPS FOR CMOS-MEMS MICROPHONES
FIGURE 7 LAYOUT OF SERPENTINE MESH DESIGN SHOWING TWO UNIT CELLS IN A MEMS MICROPHONE
FIGURE 8 REGIONAL PERCENTAGES OF MARKET SHARE FOR MEMS MICROPHONES IN 2012 AND 2017
FIGURE 8 REGIONAL PERCENTAGES OF MARKET SHARE FOR MEMS MICROPHONES IN 2012 AND 2017 (CONTINUED)
FIGURE 9 U.S. PATENTS GRANTED FOR MEMS MICROPHONES BY REGION FROM 2007 TO 2012
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