Integrated MEMS and CMOS package and method

• US 8,395,252 B1
• Filed: 11/12/2010
• Issued: 03/12/2013
• Est. Priority Date: 11/13/2009
• Status: Active Grant

• Current Assignee: Movella Incorporated (Movella Holdings, Inc.)
• Original Assignee: mCube, Inc.
• Inventors: Yang, Xiao Charles
• Primary Examiner(s): Nhu, David
• Application Number:
  US12/945,087
• Time in Patent Office: 851 Days
• Field of Search: 257/69, 257/288, 257/350, 257/401, 257/678, 257/682, 257/687, 257/676, 257/E21.421, 257/E21.499, 257/E21.502, 257/509, 257/613, 257/614, 257/632
• US Class Current: 257/687
• CPC Class Codes: B81C 1/0023 Packaging together an electronic processing unit die and a micromechanical structure die MEMS packages B81B7/0032; MEMS packaging processes B81C1/00261
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 23/3114 the device being a chip scale package, e.g. CSP
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/12044 OLED
• CPC Class Codes: H01L 2924/1461 MEMS

Abstract

An apparatus for packaging MEMS and ICs can include a semiconductor substrate, one or more MEMS devices, an enclosure, and one or more bonding structures. The semiconductor substrate can be bonded to a portion of the surface region. The semiconductor substrate can include one or more integrated circuits. Also, the semiconductor substrate can have an upper surface region. The one or more MEMS devise can overlie an inner region of the upper surface region formed by the semiconductor substrate. The enclosure can house the one or more MEMS devices. The enclosure can overlie a first outer region of the upper surface region. Also, the enclosure can have an upper cover region. The one or more bonding structures can be provided within a second outer region of the supper surface region.

Claims

1. An apparatus for packaging micro electro-mechanical systems (MEMS) and integrated circuits (ICs), the apparatus comprising:

a substrate member having a surface region;

a semiconductor substrate comprising one or more integrated circuits thereon, the semiconductor substrate being bonded to a portion of the surface region and having an upper surface region;

one or more MEMS devices overlying an inner region of the upper surface region;

an enclosure housing the one or more MEMS devices and configured overlying a first outer region of the upper surface region, the enclosure housing having an upper cover region; and

one or more bonding structures, each of the bonding structures having a bonding pad within a vicinity of the upper cover region and provided within a second outer region of the upper surface region,

wherein the second outer region is characterized by a width of about 100 microns and less, and wherein the first outer region is characterized by a width of about 200 microns and less.

2. The apparatus of claim 1 wherein the substrate comprises a material selected from a group consisting of:

a PCB, a lead frame, silicon, a semiconductor, a metal, and a dielectric.

3. The apparatus of claim 1 wherein the semiconductor substrate is characterized by a thickness of about 600 microns to about 800 microns.

4. The apparatus of claim 1 wherein the upper surface region comprises a dielectric material.

5. The apparatus of claim 1 wherein the one or more MEMS devices are selected from a group consisting of:

an accelerometer, a gyroscope, a magnetic sensor, a pressure sensor, a microphone, a humidity sensor, a temperature sensor, a chemical sensor, a biosensor, and an inertial sensor.

6. The apparatus of claim 1 wherein the upper surface region comprises the inner surface region, the first outer region, and the second outer region.

7. The apparatus of claim 1 wherein each of the bonding structures comprises the bonding pad, a via structure, and a pad structure, the pad structure being integrally coupled to one or more integrated circuits.

8. The apparatus of claim 1 further comprising a spacing between each of the bonding structures and the enclosure housing.

9. The apparatus of claim 1 further comprising an opening provided between the enclosure housing and the one or more MEMS devices, and wherein the opening is filled with one or more gases.

10. An apparatus for packaging micro electro-mechanical systems (MEMS) and integrated circuits (ICs), the apparatus comprising:

a semiconductor substrate comprising one or more integrated circuits thereon, the semiconductor substrate having a surface region and a backside region, the surface region comprising an inner region, a first outer region, and a second outer region;

one or more MEMS devices overlying the inner region of the surface region;

an enclosure housing the one or more MEMS devices and configured overlying the first outer region of the surface region; and

one or more bonding structures provided through a thickness of the semiconductor substrate and configured overlying the second outer region, each of the bonding structures having a first bonding pad within a vicinity of the first outer region, a via structure, and a second bonding pad provided within a portion of the backside region.

11. The apparatus of claim 10 wherein the semiconductor substrate is characterized by a thickness of about 600 microns to about 800 microns.

12. The apparatus of claim 10 wherein the surface region comprises a dielectric material.

13. The apparatus of claim 10 wherein the one or more MEMS devices are selected from a group consisting of:

an accelerometer, a gyroscope, a magnetic sensor, a pressure sensor, a microphone, a humidity sensor, a temperature sensor, a chemical sensor, a biosensor, and an inertial sensor.

14. The apparatus of claim 10 wherein the surface region comprises the inner region, the first outer region, and the second outer region.

15. The apparatus of claim 10 wherein the second outer region is characterized by a width of about 100 microns and less, and wherein the first outer region is characterized by a width of about 200 microns and less.

16. The apparatus of claim 15 further comprising an opening provided between the enclosure housing and the one or more MEMS devices, and wherein the opening is filled with one or more gases.

17. An apparatus for packaging micro electro-mechanical systems (MEMS) and integrated circuits (ICs), the apparatus comprising:

a semiconductor substrate comprising one or more integrated circuits thereon, the semiconductor substrate having a surface region, the surface region comprising an inner region and a first outer region;

one or more MEMS devices overlying the inner region of the surface region;

an enclosure housing the one or more MEMS devices and configured overlying the first outer region of the surface region; and

one or more bonding structures provided through a thickness of the enclosure housing and configured overlying the first outer region, each of the bonding structures having a first bonding pad within a vicinity of the first outer region, a via structure, and a second bonding pad provided within a portion of an upper cover region of the enclosure housing.

18. The apparatus of claim 17 wherein the semiconductor substrate is characterized by a thickness of about 600 microns to about 800 microns.

19. The apparatus of claim 17 wherein the semiconductor substrate is characterized by a thickness of about 100 microns and less.

20. The apparatus of claim 17 wherein the surface region comprises a dielectric material.

21. The apparatus of claim 17 wherein the one or more MEMS devices are selected from a group consisting of:

an accelerometer, a gyroscope, a magnetic sensor, a pressure sensor, a microphone, a humidity sensor, a temperature sensor, a chemical sensor, a biosensor, and an inertial sensor.

22. The apparatus of claim 17 wherein the surface region comprises the inner region and the first outer region, and wherein the first outer region is characterized by a width of about 200 microns and less.

23. The apparatus of claim 17 further comprising an opening provided between the enclosure housing and the one or more MEMS devices, wherein the opening is filled with one or more gases.