Confidential Degree : Confidential
Specification of MEMS
Microphone
(RoHS Compliance & Halogen Free)
Customer Name :
Customer Model :
Goermicro Model : S15OB381-068
Goermicro
CUSTOMER APPROVAL
DESIGN
Zamp.Wang
2021.06.22
CHKD
Hubery.Zhang
2021.06.22
STANDARD
Angela.Kong
2021.06.22
APVD
Jenny.Liu
2021.06.22
Tel : + 86 536 3051234
E- Mail : Goermicro@Goermicro.com
Website: http://www.Goermicro.com
Address: No.268 Dongfang Road, High-Tech Industry
Development District, Weifang, Shandong, P.R.C.
Version:3.0
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Restricted
1 Security Warning
The information contained in this document is the exclusive property of Goermicro
Inc. and should not be disclosed to any third party without the written consent of
Goermicro Inc.
2 Publication History
Version
1.0
2.0
3.0
Version:3.0
Description
Date
Author
New Design
2020.04.02
Aaron
Rock
2020.09.02
Lamon
Roy
2021.06.22
Zamp
Jenny
Update Acoustic and Electrical
Characteristics
Update Acoustic and Electrical
Characteristics
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Approved
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Contents
1
2
3
4
5
6
7
Introduction
Test Condition
Acoustic and Electrical Characteristics
Frequency Response Curve and Limits
Measurement Circuit
Test Setup Drawing
Mechanical Characteristics
4
4
4
4
5
5
6
7.1 Appearance Drawing
6
7.2 Weight
6
8 Reliability Test
7
8.1
Vibration Test
7
8.2
Drop Test
7
8.3
Temperature Test
7
8.4
Humidity Test
7
8.5
Mechanical Shock Test
7
8.6
Thermal Shock Test
7
8.7
Reflow Test
7
8.8 Electrostatic Discharge Test
9 Package
7
8
9.1 Tape Specification
8
9.2 Reel Dimension
9
9.3 The Content of Box
9
9.4 Packing Explain
10
10 Storage and Transportation
11 Land Pattern Recommendation
10
11
11.1 The Pattern of MIC Pad
11
11.2 Recommended Soldering Surface Land Pattern
11
12 Soldering Recommendation
12
12.1 Soldering Machine Condition
12
12.2 The Drawing and Dimension of Nozzle
12
12.3 Reflow Profile
13
13 Cautions
14
13.1 Board Wash Restrictions
14
13.2 Vacuum Restrictions
14
13.3 Ultrasonic Restrictions
14
13.4 Air Blow Restrictions
14
14 Output Inspection Standard
Version:3.0
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14
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1 Introduction:
MEMS MIC which is able to endure reflow temperature up to 260℃ for 50 seconds can be
used in SMT process. It is widely used in telecommunication and electronics device such as
mobile phone, laptop computers, and other portable electronic devices etc.
2 Test Condition (Vs=2.7V, L=50cm)
StandardConditions
(As IEC 60268-4)
Temperature
Humidity
Air pressure
Environment Conditions
+15℃~ +35℃
25%R.H.~75%R.H.
86kPa~106kPa
+20℃ ± 2℃
60%R.H.~70%R.H.
86kPa~106kPa
Basic Test Conditions
3 Acoustic and Electrical Characteristics
Symbol
Item
Operating Voltage Range
Test Conditions
VS
Min
Typ
Max
Unit
1.5
2.7
3.6
V
150
μA
-37
dBV
Current Consumption
I
Vs=2.7V
Sensitivity
S
f=1kHz, Pin=1Pa
S/N Ratio
SNR
f=1kHz, Pin=1Pa
A-Weighted Curve
64
dB
Total Harmonic Distortion
THD
1%THD@1kHz
116
dB SPL
Acoustic Overload Point
AOP
10%THD@1kHz
128
dB SPL
Phase Response
PR
Vdd=2.7V,94dBSPL,test ,
Frequency 100Hz to 10Khz
Power Supply Rejection
PSR
100mVpp square wave@217Hz,
VS=2.7V, A-Weighted
-96
dBV
Low Frequency Roll-off
LFRO
-3dB corner refrence to
1kHz sensitivity
10
Hz
Power Supply Rejection Ration
PSRR
200mVpp sinewave@1k Hz,
VS=2.7V
68
dB
Output Impedance
Decreasing Voltage Characteristic
Zout
f=1kHz, Pin=1Pa
S
f=1kHz, Pin=1Pa
Vs=3.6 --1.5V
-39
-5
°
5
Ω
400
No Change
D(θ)
Directivity
-38
Omnidirectional
Relative Response (dB)
4 Frequency Response Curve and Limits
+6
+5
+4
+2
+3
+1.5
+2
+2 +2
+2
+2
+2
+1
0
-2
-2.5
-4
-2
-2
-2
-2
-2
-2
1k 1.1k
3k
6k
-1
-6
20
Version:3.0
50
100
200
300
500
8k 10k
Frequency (Hz)
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5 Measurement Circuit
Term.1 (Power)
CP
VDD + 2.7V
Filter
Term.2 (Output)
Amp
OUTPUT
C=10μF
Term.3 (GND)
MEMS
Microphone
GND
6 Test Setup Drawing
Power Amplifier
Free-field 1/2"
Microphone
50cm
Speaker
Audio Analyzer
MIC
Input
Output
Power&Load
Remote Control
Turn Table
Anechoic Room
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7 Mechanical Characteristics
7.1 Appearance Drawing (Unit: mm)
W
H
1.600
2X0.650
2X0.545
3
0.875
L
2.51
GWWD
YLLL
1.61
R0.25
Ø1.450
AP
0.280
1.205
2
1
0.925
Ø0.950
Identification
Number
Bottom View
Top View
Pin#
1
Power
2
Output
3
GND
Dimension
Item
Function
Tolerance
Units
Length(L)
2.75
±0.10
mm
Width(W)
1.85
±0.10
mm
Height(H)
Acoustic
Port(AP)
0.90
±0.10
mm
Ø0.25
±0.05
mm
Note: 1. Tolerance ±0.1 mm unless otherwise specified.
2. Identification Number Convention: Job Identification Number.
Identification
Number
GWWD
Y LLL
G : Goermicro W W :Week
Y
:Year
L L L
D
:Day
: Serial Number
2D Code
7.2 Weight
The weight of the MIC is Less than 0.02g.
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8 Reliability Test
8.1
Vibration
Test
To be no interference in operation after vibrations, 4 cycles, from 20 to 2,000Hz in each
direction(X,Y,Z), 48 minutes, using peak acceleration of 20g, sensitivity should vary
within ±3dB from initial sensitivity(IEC 60068-2-6:2007).
(The measurement to be done after 2 hours of condition at 15℃-35℃, R.H. 25%~75%)
8.2
Drop
Test
To be no interference in operation after dropped to 1.0cm steel plate 12 times from 1.5
meter height in state of JIG,JIG weight of 100g, sensitivity should vary within ±3dB from
initial sensitivity(IEC60068-2-31:2008).
(The measurement to be done after 2 hours of condition at 15℃-35℃, R.H. 25%~75%)
a) After exposure at +125℃ for 200 hours, sensitivity should vary within ±3dB from initial
sensitivity(IEC 60068-2-1:2007).
(The measurement to be done after 2 hours of condition at 15℃-35℃, R.H. 25%~75%)
8.3
Temperature
b) After exposure at -40℃ for 200 hours, sensitivity should vary within ±3dB from initial
Test
sensitivity(IEC 60068-2-1:2007).
(The measurement to be done after 2 hours of condition at 15℃-35℃, R.H. 25%~75%)
8.4
Humidity
Test
After exposure at +85℃ and 85% relative humidity for 200 hours, sensitivity should vary
within ±3dB from initial sensitivity(IEC 60068-2-67:2019).
(The measurement to be done after 2 hours of condition at 15℃-35℃, R.H. 25%~75%)
Then subject samples to three one-half sine shock pulses (3000 g for 0.3 milliseconds) in
8.5
each direction (for six axes in total) along each of the three mutually perpendicular axes
Mechanical for a total of 18 shocks, sensitivity should vary within ±3dB from initial sensitivity
Shock Test (IEC60068-2-27:2008).
(The measurement to be done after 2 hours of condition at 15℃-35℃, R.H. 25%~75%)
After exposure at -40℃ for 30 minutes, at +125℃ for 30 minutes (change time 20 seconds)
8.6
32 cycles, sensitivity should vary within ±3dB from initial sensitivity(IEC 60068-2-14:2009).
Thermal
Shock Test (The measurement to be done after 2 hours of condition at 15℃-35℃, R.H. 25%~75%)
8.7
Reflow
Test
Adopt the reflow curve of item 12.3, after three reflows, sensitivity should vary within ±2dB
from initial sensitivity(Refer to customer's request).
(The measurement to be done after 2 hours of condition at 15℃-35℃, R.H. 25%~75%)
8.8
Under C=150pF, R=330ohm.
Electrostatic Air discharge to case with±8kV and contact discharge to I/O terminals with±2kV , 10 times,
Discharge Grounding. Sensitivity should vary within ±3dB from initial sensitivity(IEC61000-4-2:2008).
Test
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9 Package
9.1 Tape Specification
P0
ØD0
E
P2
A
B
W
F
A
B
ØD1
P1
Power
Pin 1
B-B
A-A
T
10°
10°
B0
A0
K0
The Dimensions as Follows:
ITEM
W
E
F
ØD0
ØD1
DIM(mm)
12.0±0.30
1.75±0.10
5.5±0.05
1.50+0.10
0
0.50+0.10
0
ITEM
P0
10P0
P1
A0
DIM(mm)
4.00±0.10
40.00±0.20
8.00±0.10
2.95±0.05
ITEM
K0
P2
T
DIM(mm)
1.10±0.10
2.00±0.05
0.30±0.05
Version:3.0
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B0
2.05±0.05
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9.2 Reel Dimension
7'' reel for sample stage
13'' reel will be provided for the mass production stage
The following is 13'' reel dimensions (unit:mm)
12.4±0.2
inner side
DETAIL "A"
A
11 12 1
10
2
9
8
7 65
3
4
1.9±0.4
Ø100±0.5
Ø330(max)
Ø21±0.4
Ø13±0.2
120°
9.3 The Content of Box(13'' reel)
Packing (5,500PCS)
Antistatic Bag
(5,500PCS)
Two Inner Box(55,000PCS)
Version:3.0
5 Antistatic Bags
(27,500PCS)
Inner Box(27,500PCS)
(340mm 135mm 355mm)
Outer Box(55,000PCS)
(360mm 300mm 388mm)
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9.4 Packing Explain
9.4.1 The Label Content of the Reel
11121
10
2
9
87
3
6 54
xx
xx x
xx
xx xxxx x
xx
x
x
xx xxx xxx
x
x
xx xxx
x
xx
The Content Includes:
Product type, Lot, Customer P/N;
and other essential information such as
Quantity, Date etc.
9.4.2 The RoHS Label
11121
10
2
9
87
3
6 54
RoHS Compliance&
Halogen Free Mark
RoHS
10 Storage and Transportation
10.1 Keep MEMS MIC in warehouse with less than 75% humidity and without sudden
temperature change, acid air, any other harmful air or strong magnetic field.
Recommend storage period no more than 1 year and floor life(out of bag) at
factory no more than 4 weeks.
10.2 The MEMS MIC with normal pack can be transported by ordinary conveyances. Please
protect products against moist, shock, sunburn and pressure during transportation.
10.3 Storage Temperature Range:-40℃~+70℃(Microphone units with package)
10.4 Operating Temperature Range:-40℃~+100℃
Note1: MSL(moisture sensitivity level) Class 1(IPC/JEDEC-J-STD-020 Revision C)
Note2: Static sensitive device
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11 Land Pattern Recommendation
11.1 The Pattern of MIC Pad(Unit:mm)
2-0.65
1.6
0.875
1.205
Ø0.25
2-0.545
Ø1.45
Ø0.95
0.925
11.2 Recommended Soldering Surface Land Pattern(Unit:mm)
0.1
1.6
2-0.545
1.205
2-0.65
Ø1.45
Ø0.95
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12 Soldering Recommendation
12.1 Soldering Machine Condition
8 zones
Temperature Control
Heater Type
Hot Air
Solder Type
Lead-free
12.2 The Drawing and Dimension of Nozzle
Inside Diameter: Ø1.0mm;
Please don't vacuum over the acoustic port directly.
Please don't blow the acoustic port directly.
0.25(Typ)
2.75
1.85
Pick Area
0.25(Typ)
Ø1.0
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12.3 Reflow Profile
Temp. °C
Tp
Max. Ramp-up rate = 3℃/s
Max. Ramp-down rate = 6℃/s
TL
tp
tL
Tsmax
Preheat area
Tsmin
ts
25
time 25℃ to peak
Time. sec
Key Features of The Profile:
Average Ramp-up rate(Tsmax to Tp)
3℃/s max.
Preheat :
Temperature Min(Tsmin)
Temperature Max(Tsmax)
Time(Tsmin to Tsmax)(ts)
150℃
200℃
60~180s
Time maintained above :
Tempreature(TL)
Time(tL)
217℃
60~150s
Peak Temperature(Tp)
260℃
Time within 5℃ of actual Peak Temperature(tp) :
30~40s
Ramp-down rate(Tp to Tsmax)
6℃/s max
Time 25℃ to Peak Temperature
8min max
When MEMS MIC is soldered on PCB, the reflow profile is set according to solder paste
and the thickness of PCB etc.
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13 Cautions
13.1 Board Wash Restrictions
It is very important not to board wash the PCBA after reflow process, otherwise this
could damage the microphone.
13.2 Vacuum Restrictions
It is very important not to put a vacuum over the acoustic port of the microphone.
otherwise this could damage the microphone.
13.3 Ultrasonic Restrictions
It is very important not to use ultrasonic process. otherwise this could damage the
microphone.
13.4 Air Blow Restrictions
It is very important not tnot o use air gun near the port hloe of the microphone,
otherwise this could damage the microphone.
14 Output Inspection Standard
Output inspection standard is executed according to .
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