Confidential Degree : Confidential
Specification of MEMS
Microphone
(RoHS Compliance & Halogen Free)
Customer
Name :
Customer
Model :
Goermicro Model : S18OB381-028
Goermicro
10644
Zamp Wang
CHKD
Hubery Zhang 2021.11.22
STANDARD
Angela Kong
2021.11.22
APVD
Roy Wang
2021.11.22
2021.11.22
013
2551
2728
ISO14001:2004
ISO9001:2008
Version:5.0
DESIGN
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.
ISO/TS16949:2009
013
CUSTOMER APPROVAL
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page 1/15
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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
Description
Date
Author
1.0
New Design
2018.05.23
Hubery
2.0
3.0
Version:5.0
Approved
Worden
Update 3 electrical characteristics
2019.08.19
& 7.1 appearance drawing&9.1
Tape Specification
Paul
Sunny
2021.01.27
Ariel
Jenny
Add THD Curve
4.0
Update the Logo to Goermicro
2021.08.25
Enoch
Roy
5.0
Update Current and THD
Performance
2021.11.22
Zamp
Roy
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Contents
1
2
3
4
Introduction
Test Condition
Electrical Characteristics
4.1Frequency Response Curve
4.2THD Curve
5 Measurement Circuit
6 Test Setup Drawing
7 Mechanical Characteristics
4
4
4
5
5
6
6
7
7.1 Appearance Drawing
7
7.2 Weight
7
8 Reliability Test
8
8.1 Vibration Test
8
8.2 Drop Test
8
8.3 Temperature Test
8
8.4 Humidity Test
8
8.5 Mechanical Shock Test
8
8.6 Thermal Shock Test
8
8.7 Reflow Test
8
8.8 Electrostatic Discharge Test
8
9 Package
9
9.1 Tape Specification
9
9.2 Reel Dimension
10
9.3 The Content of Box
10
9.4 Packing Explain
11
10 Storage and Transportation
11 Land Pattern Recommendation
11
12
11.1 The Pattern of MIC Pad
12
11.2 Recommended Soldering Surface Land Pattern
12
12 Soldering Recommendation
13
12.1 Soldering Machine Condition
13
12.2 The Drawing and Dimension of Nozzle
13
12.3 Reflow Profile
14
12.4 Rework
15
13 Cautions
15
13.1 Board Wash Restrictions
15
13.2 Nozzle Restrictions
15
13.3 Blowing Restrictions
15
13.4 Ultrasonic Restrictions
15
13.5 Case Adaption to Pressure Restrictions
14 Output Inspection Standard
Version:5.0
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15
15
page 3/15
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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, MP3, PDAs etc.
2 Test Condition (Vs=2.0V,L=50cm)
StandardConditions
(As IEC 60268-4)
Environment Conditions
Basic Test Conditions
Temperature
Air pressure
Humidity
+15℃~ +35℃
25%R.H.~75%R.H.
86kPa~106kPa
+20℃±2℃
60%R.H.~70%R.H.
86kPa~106kPa
3 Electrical Characteristics
Symbol
Test Conditions
Min
Typ
Max
Unit
S
f=1KHz, Pin=1pa
-39
-38
-37
dB
Output Impedance
Zout
f=1KHz, Pin=1pa
400
Ω
Directivity
D(θ)
Omnidirectional
I
Operating Voltage Range
200
μA
S/N(A)
f=1kHz, Pin=1Pa
A-Weighted Curve
66
dB
PSR
Measured with 217Hz,
100mVpp square wave
-98
dB
Item
Sensitivity
Current Consumption
S/N Ratio
Power Supply Rejection
Decreasing Voltage Characteristic
S
50
f=1kHz, Pin=1Pa
Vs=3.6 --1.6V
110
Operating Voltage Range
Vs
Total Harmonic Distortion
THD
94dB SPL@1 kHz
0.2
Acoustic Overload Point
AOP
10% THD @1 kHz
124
Load Resistor
RL
Load Capacitance
CL
VDD ramp up time
tVDDup
Version:5.0
1.6
10
VDD reaches its final value
within +/- 10 % tolerance
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dB
No Change
0.001
3.6
V
0.5
%
dB SPL
100
KΩ
150
pF
2
ms
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4.1 Frequency Response Curve and Limits
Relative Response (dB)
+15
+10
+5
+1
0
-5
-5
+3
+3 +3
+3
+5
-3
-3 -3
-3
-3
-10
-15
-20
100
200
300
500
1k 1.1k
Frequency (Hz)
3k
5k
8k
4.2 THD Curve
THD
20
15
%
10
5
0
90
100
110
120
130
dBSPL
Version:5.0
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5 Measurement Circuit
Term.1 (Power)
CP
Vs + 2.0V
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
Version:5.0
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7 Mechanical Characteristics
7.1 Appearance Drawing (Unit: mm)
1.675
W
0.125
0.725
H
0.125
0.522
3.094
1.513
⑤
L
YLLL
⑤
①
④
②
0.300
③
Ø1.025
Ø1.625
R0.25
2.244
AP
0.292
Identification
Number
1.325
Top View
Pin#
Function
Bottom View
Dimention
Tolerance
Units
Length(L)
3.50
±0.10
mm
Item
1
Output
Width(W)
2.65
±0.10
mm
2
GND
Height(H)
0.98
±0.10
mm
3
GND
Acoustic Port
(AP)
2-Ø0.2
±0.05
mm
4
GND
5
Power
Note: 1. Tolerance ±0.1 unless otherwise specified.
2. Identification Number Convention: Job Identification Number.
Identification
Number
YLLL
G : Goermicro
Y : Year
WW :Week D :Day
L L L : Serial Number
2D Barcode
7.2 Weight
The weight of the MIC is Less than 0.04g.
Version:5.0
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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
Version:5.0
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9 Package
9.1 Tape Specification
P0
P2
ØD0
E
VDD
A
B
W
F
A
B
ØD1
P1
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
ITEM
P0
10P0
P1
DIM(mm)
4.00±0.10
40.00±0.20
8.00±0.10
ITEM
K0
P2
T
DIM(mm)
1.30±0.10
2.00±0.05
0.30±0.05
Version:5.0
A0
3.75±0.05
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B0
2.95±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
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 (5,000PCS)
Antistatic Bag
(5,000PCS)
Two Inner Box(50,000PCS)
Version:5.0
5 Antistatic Bags
(25,000PCS)
Inner Box(25,000PCS)
(340mm 135mm 355mm)
Outer Box(50,000PCS)
(370mm 300mm 390mm)
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9.4 Packing Explain
9.4.1 The Label Content of the Reel
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
RoHS
RoHS HF
Compliance Mark
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℃
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
Version:5.0
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11 Land Pattern Recommendation
11.1 The Pattern of MIC Pad(Unit:mm)
1.675
0.725
0.522
1.513
0.300
Ø1.025
Ø1.625
11.2 Recommended Soldering Surface Land Pattern
1.675
1.513
0.725
0.522
0.300
Ø1.025
Ø1.625
Version:5.0
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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
Nozzle Diameter: Ø1.0mm;
Please don't blow the acoustic port directly.
Ø1.0
Version:5.0
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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.
Version:5.0
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12.4 Rework
(1) 250°C~270°C, maximum 30 sec,Peak temperature 330°C.
(2) Wind speed: 15L/m.
(3) It is very important not to put a heatgun over the acoustic port of the microphone.
13 Cautions
13.1 Board Wash Restrictions
It is very important not to wash the PCBA after reflow process, otherwise this could
damage the microphone.
13.2 Nozzle Restrictions
It is very important not to be put a nozzle over the acoustic hole of the microphone,
otherwise this could damage the microphone.
13.3 Blowing Restrictions
It is very important not to blow the acoustic port of the microphone directly,otherwise
this could damage the microphone.
13.4 Ultrasonic Restrictions
It is very important not to use ultrasonic process. otherwise this could damage the
microphone.
13.5 Case Adaption to Pressure Restrictions
It is very important not to press the case with a force larger than 2.5kgf, otherwise
this would damage the microphone.
14 Output Inspection Standard
Output inspection standard is executed according to .
Version:5.0
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