Atrua ATW3xx Data Sheet rev E .pdf

Atrua Wings™ ATW300 Family
Fingerprint Touch Sensor Data Sheet
KEY FEATURES
TYPICAL APPLICATIONS
ƒ Low Power Consumption
− 1.4 mA avg. operating current
− 1.1 mA avg. navigation operating current
− 2.6 µA finger detection current
− 0.2 µA power down current
ƒ High Performance
− Up to 48 cm/sec swipe/movement rate
− Acquisition rate greater than 3,700 frames per sec.
(512 bytes per frame)
ƒ Compact Size
− 0.56 x 8.73 mm active sensing area
− 2.5 x 14.5 x 1.06 mm (1.32 mm package caps)
package size
ƒ Integrated CLK & Over-Current Protection Circuits
− Reduces component count and BOM cost
− Minimizes total solution board area
ƒ I/O Interface Flexibility
− 8-bit parallel MCU interface
− High Speed Serial Peripheral Interface (SPI)
ƒ Low Voltage
− 1.8 V – 3.3 V I/O
− 2.5 V – 3.3 V core
ƒ Highly Rugged
−
± 20 kV ESD protection (Exceeds max. IEC61000-4-2 level)
− Withstands over 20 million swipes
− Abrasion & corrosion resistant
ƒ Adaptable Sensitivity
− Automatic gain control for optimized gray-scale
image with wide range of finger, skin &
environmental conditions
ƒ Green/RoHS Compliant
ATW300 family’s low cost, small size and low
power consumption make it especially suited for
use in mobile device applications such as:
−
−
−
−
−
−
−
−
Mobile phones
Smart cards
Portable MP3 and media players
Secure storage products
Portable gaming devices
PDAs
Mobile computing devices and peripherals
Portable products that benefit from small,
feature-rich controls
QUICK TIME-TO-MARKET
Extending the ATW300’s market-leading easeof-integration, Atrua provides a comprehensive
set of hardware and software support tools for
rapid application development:
− Evaluation Kit
− Software Development Kit
− Hardware Development Kit for Embedded
Systems
BLOCK DIAGRAM
SENSOR ARRAY
D[7:0]/SPI
A0
CSn
WRn
RDn
INTRn
TCLKIN
BUS
CONTROLLER
AND I/O BUFFERS
CONTROL AND
STATUS REGISTERS
STATE CONTROLLER
INDEX REGISTER
ANALOG-TO-DIGITAL
CONVERTER
FRAME BUFFERS
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 1 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
General Description
The ATW300 family of fingerprint touch
sensors (ATW3xx) is the sensor portion of
the Atrua Wings™ touch processing
system. The system consists of:
ƒ Touch sensors – small, low cost and low
power sensors that provide information
on finger features and movement.
ƒ Algorithms – fingerprint recognition,
navigation and control functions that are
highly precise and accurate and operate
in a very CPU- and memory-efficient
manner.
The ATW3xx touch sensor creates partial
images (frames) of the finger by sensing
the ridges and valleys on the finger as it is
moved or “swept” across its surface. This
small Adaptive Capacitance™ sensor
provides high performance and low power
consumption through an integrated 124 x 8
sensing array of metal electrodes. Ridges
and valleys on the finger yield varying
capacitance values across the array, which
are read to form a partial image of the
fingerprint. Internal circuits within the
sensor die convert the sensed data into a
stream of digital data (a frame) that is
presented to the host microprocessor via an
8-bit bidirectional bus interface, which is
compatible with most microprocessors, or
through a high-speed SPI interface.
There are two key classes of algorithms
that execute on the host processor and
comprise the core functions of this
fingerprint touch processing system:
ƒ Fingerprint Authentication
ƒ Control and Navigation
Optimized for use in mobile devices, the
low cost, small physical size and minimal
power consumption of the ATW3xx touch
sensor simplify its integration into mobile
phones and other small mobile devices.
The ATW3xx integrates the typically
external over-current protection circuit to
enable significant BOM cost savings and to
further minimize the board area required for
the total solution.
Additionally, the ATW3xx has an integrated
analog-to-digital converter to digitize the
sensed data and an automatic gain control
(AGC) function that provides high quality
fingerprint images from all types of skin, dry
to moist, in a wide range of climatic
conditions, even cold and dry.
In addition to the sensor’s low power
requirements, the end system’s power
consumption can be further minimized by
utilizing one of the ATW3xx’s advanced
finger detect modes. These modes are
designed to analyze on-sensor the finger’s
characteristics and wake the host CPU only
after the sensor concludes that contact was
made by an actual finger, not a foreign
object.
This reduces the need to
unnecessarily wake the CPU subsystem,
thus saving even more power.
The ATW3xx touch sensor is fabricated in
standard CMOS technology and is provided
in a Green/RoHS compliant LGA package.
The sensor surface is protected by a
special abrasion and chemical-resistant
coating to provide long life with high
reliability.
These algorithms operate on the data
streamed from the sensor. Authentication
extracts minutiae features used for
fingerprint verification, and matches the
minutiae pattern to the template for the
user’s
enrolled
finger.
The
navigation/control algorithms analyze finger
motions to provide control functions.
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 2 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
Conventions
Unless otherwise noted, a positive logic (active High) convention is assumed throughout this
document. A lowercase ‘n’ following a signal name (e.g., INTRn) indicates that the signal is active
Low.
The designation 0xNNNN indicates a hexadecimal number.
The designation 0bNNNN indicates a binary number.
Signal Descriptions
Name
D[7:0]
Type
Bi-directional
Description
8-bit Mode:
Data bus with CMOS inputs. These pins provide an 8-bit data path
for read and write operations. The bus is in the high-impedance state
when CSn or RDn is negated.
SPI Mode:
D7/MISO functions as the MISO (Master In Slave Out). Data is
shifted out of the SPI slave and into the SPI master.
D6/MOSI functions as the MOSI (Master Out Slave In). Data is
shifted out of the SPI master and into the SPI slave.
A0/SCK
Input
D5/SCK_INV selects the polarity of SCK. When SCK_INV is Low,
data is shifted out of the MISO on the falling edge of SCK and the
MOSI is sampled on the rising edge of SCK. When SCK_INV is High,
data is shifted out of the MISO on the rising edge of SCK and the
MOSI is sampled on the falling edge of SCK.
8-bit Mode:
Address. CMOS input.
When A0 is Low, the Index Address register (IDX_REG) is selected
as the source/destination for read and write transactions. When A0 is
High, the indexed register (see Functional Description) is selected as
the source/destination for read and write transactions.
SPI Mode:
SPI Clock. CMOS input.
When SCK_INV is Low, data is shifted out the MISO on the falling
edge of SCK and the MOSI is sampled on the rising edge of SCK.
When SCK_INV is High, data is shifted out the MISO on the rising
edge of SCK and the MOSI is sampled on the falling edge of SCK.
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 3 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
CSn/SCSn
Input
8-bit Mode:
Chip Select, active Low. CMOS input.
This input must be asserted to read data from or write data to the
ATW3xx. When High, the data bus is in the high impedance state.
SPI Mode:
Slave Chip Select, active Low. CMOS input.
RDn
Input
Drive SCSn Low to select the device as an SPI slave. Drive SCSn
High to deselect the device, reset the SPI, and to place the MISO in
the high impedance state.
8-bit Mode:
Read Enable, active Low. CMOS input.
This input must be asserted for read operations and negated for write
operations. When High, data outputs from the device are disabled
and the data bus pins are placed in the high impedance state.
WRn
Input
SPI Mode:
RDn must be driven Low. Drive both RDn and WRn Low to place the
device into SPI mode. The device returns to 8-bit Mode if either RDn
or WRn is driven High.
8-bit Mode:
Write Enable, active Low. CMOS input.
Controls writing of commands or data to the ATW3xx. A write
operation takes place when WRn is asserted while CSn is Low and
RDn is High. The data is latched on the rising edge of WRn.
INTRn
Output
TCLKIN
Input
VDDC
VSSC
VDDO
VSSO
SHGND
Power
Ground
Power
Ground
Ground
850-0003-001 Rev. E
December 2007
SPI Mode:
WRn must be driven Low. Drive both RDn and WRn Low to place the
device into SPI mode. The device returns to 8-bit Mode if either RDn
or WRn is driven High.
Interrupt Request, active Low. INTRn is asserted if interrupts are
enabled and an interrupt event takes place.
External Clock Input. The ATW3xx has an internal clock and does
not require an external clock input. This input is for testing only and
should be left unconnected for normal operation.
Core Power.
Core Ground.
I/O Power.
I/O Ground.
ESD Ground. These pins are intended to provide a discharge path
during an electrostatic discharge event. Connect these pins to
chassis ground.
Atrua Technologies
Confidential & Proprietary
Page 4 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
ABSOLUTE MAXIMUM RATINGS1
Symbol
TSTG
TBIAS
TL
VIN
IOS
ESD (HBM)
ESD (CDM)
Surface ESD
Parameter
Storage Temperature
Ambient Temperature with Power Applied
Lead Temperature, max 20s duration2
Voltage on Pin with Respect to VSSO:
VDDO
All Other Pins
Output Short Circuit Current
Electrostatic Discharge, Human Body Model,
EIA/JEDEC JESD22-A114
Electrostatic Discharge, Charged Device Model,
EIA/JEDEC JESD22-C101
Electrostatic Air Discharge, IEC-61000-4-23
Value
-40 to +125
-40 to +85
+250
Unit
ºC
ºC
ºC
-0.5 to +4.0
-0.5 to (VDD + 0.5)
200
V
V
mA
± 2000
V
±1800
V
± 20
kV
Notes:
1. Conditions in excess of those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the
operational sections of this data sheet is not implied. Exposure of the device to absolute maximum rating conditions for
extended periods may affect device reliability.
2. Reflow details per Lead-Free IR Reflow Profile in IPC/JEDEC J-STD-020.
3. Per internal procedure for testing the component on a standard development board per IEC-61000-4-2.
RECOMMENDED OPERATING CONDITIONS1
Symbol
TA
VDDC
VDDO
MSL
Parameter
Ambient Operating Temperature
Core Power Operating Supply Voltage
I/O Power Operating Supply Voltage2
JEDEC Moisture Sensitivity Level
Value
-20 to +70
+2.5 to +3.3
+1.8 to +3.3
3
Unit
ºC
V
V
---
Notes:
1. Recommended Operating Conditions define those limits between which the functionality of the device is guaranteed.
2. VDDO can be at a lower supply level than VDDC if the application requires. Allowed modes of operation are in the following
table.
ALLOWED POWER SUPPLY VOLTAGE COMBINATIONS
VDDO
1.8 V
2.5 V
3.3 V
VDDC
2.5 V or 3.3 V
2.5 V or 3.3 V
3.3 V
Notes:
1. VDDC must be equal to or higher than VDDO.
2. VDDO is not allowed to be higher than VDDC.
POWER SEQUENCING
VDDC and VDDO should be applied at the same time. If VDDC and VDDO cannot be applied concurrently,
then VDDC must be applied before applying voltage to VDDO or any signal pin.
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 5 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
DC CHARACTERISTICS (2.5 V Core) 1, 2, 3
Parameter
Description
VDDC
VDDO
Core Supply Voltage
I/O Supply Voltage
II
Input Leakage
IOZ
IDD1
IDD2
IDD3
IDD4
IDD5
IDD6
IDD7
IDD8
IDD9
IDD10
Input current for outputs in
Hi-Z
VDD Stand-by without partial
power down,
Quiescent Current
VDD Peak Operating Current 4
VDD Average Operating
Current, 500 fps
VDD Average Operating
Current, 250 fps (Navigation)
VDD Average Operating
Current with Finger Detect
Surface Contact Detect State
Active (Monitoring)
VDD Peak Operating Current 4
with Finger Detect Mode 3
Active (Monitoring) or Mode 2
prior to asserting the interrupt
VDD Average Operating
Current with Finger Detect
Mode 3 Active (Monitoring,
Interval=400 ms)
VDD Quiescent Current with
Finger Detect Mode 1, 2 or 3
Triggered (After interrupt
asserted)
VDD Partial Power Down,
Quiescent Current
VDD Full Power Down
Quiescent Current
Test Conditions
Min
Max
Unit
2.75
2.75
V
V
-3
3
µA
-1
1
µA
2.25
1.65
0 ≤ VIN ≤ VDDO,
VDDO = Max
0 ≤ VOUT ≤ VDDO,
VDDO = Max
Typical
2.5
1.8
2.5
2.5
VDDC = Max
15
20
72
µA
VDDC = Max
3.9
3.9
6.8
mA
VDDC = Typ
1.4
1.5
mA
VDDC = Typ
1.1
1.1
mA
VDDC = Max
2.6
2.7
27
µA
VDDC = Max
3.9
3.9
6.8
mA
VDDC = Max
3.9
4.0
45
µA
VDDC = Max
23
23
60
µA
VDDC = Max
0.7
1.5
19
µA
VDDC = Max
0.2
0.2
3
µA
0.3 x
VDDO
V
VIL
Input Low Voltage
VIH
Input High Voltage
VOL
Low-Level Output Voltage
IOL = Min
VOH
High-Level Output Voltage
IOH = Max
0.7 x
VDDO
V
0.2 x
VDDO
0.8 x
VDDO
V
V
Notes:
1. All maximum IDD specifications in table are tested with VDD = VDD Max and ambient temperature = 85°C.
2. All typical specifications in table are measured with ambient temperature = 25°C.
3. All operating IDD specifications in table are tested with 2X clock.
4. Peak operating current (IDD2 , IDD6 ) is observed when performing an A/D conversion, which lasts nominally 256 µs.
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 6 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
DC CHARACTERISTICS (3.3 V Core) 1, 2, 3
Parameter
Description
VDDC
VDDO
Core Supply Voltage
I/O Supply Voltage
II
Input Leakage
IOZ
IDD1
IDD2
IDD3
IDD4
IDD5
IDD6
IDD7
IDD8
IDD9
IDD10
Test Conditions
Input current for outputs in
Hi-Z
VDD Stand-by without partial
power down,
Quiescent Current
VDD Peak Operating Current 4
VDD Average Operating Current,
500 fps
VDD Average Operating Current,
250 fps (Navigation)
VDD Average Operating Current
with Finger Detect Surface
Contact Detect State Active
(Monitoring)
VDD Peak Operating Current 4
with Finger Detect Mode 3
Active (Monitoring) or Mode 2
prior to asserting the interrupt
VDD Average Operating Current
with Finger Detect Mode 3
Active (Monitoring, Interval=400
ms)
VDD Quiescent Current with
Finger Detect Mode 1, 2 or 3
Triggered (After interrupt
asserted)
VDD Partial Power Down,
Quiescent Current
VDD Full Power Down Quiescent
Current
Input Low Voltage
Input High Voltage
Low-Level Output Voltage
High-Level Output Voltage
0 ≤ VIN ≤ VDDO,
VDDO = Max
0 ≤ VOUT ≤ VDDO,
VDDO = Max
Min
Typ
Max
Unit
3.0
1.65
3.3
3.3
3.63
3.63
V
V
-3
3
µA
-1
1
µA
VDDC = Max
40
95
µA
VDDC = Max
5
9
mA
VDDC = Typ
2
mA
VDDC = Typ
1.7
mA
VDDC = Max
4.6
36
µA
VDDC = Max
5
9
mA
VDDC = Max
4.4
60
µA
VDDC = Max
38
80
µA
VDDC = Max
1.6
25
µA
VDDC = Max
0.2
4
µA
VIL
0.3 x VDDO
V
VIH
0.7 x VDDO
V
VOL
IOL = Min
0.2 x VDDO
V
VOH
IOH = Max
0.8 x VDDO
V
Notes:
1. All maximum IDD specifications in table are tested with VDD = VDD Max and ambient temperature = 85°C.
2. All typical specifications in table are measured with ambient temperature = 25°C.
3. All operating IDD specifications in table are tested with 2X clock.
4. Peak operating current (IDD2 , IDD6 ) is observed when performing an A/D conversion, which lasts nominally 256 µs.
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 7 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
Parameter
Description
IOH
High-Level Output
Current
IOL
Low-Level Output
Current
Test Conditions
Strong Drivers
VDDO ≥ 2.25V
Medium Drivers
Weak Drivers
Strong Drivers
1.65V ≤ VDDO ≤ 1.95V
Medium Drivers
Weak Drivers
Strong Drivers
VDDO ≥ 2.25V
Medium Drivers
Weak Drivers
Strong Drivers
1.65V ≤ VDDO ≤ 1.95V
Medium Drivers
Weak Drivers
Min
6
4
2
3
2
1
Max
-6
-4
-2
-3
-2
-1
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Note: Default setting is “Strong Drivers”.
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 8 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
KEY TO SWITCHING WAVEFORMS
WAVEFORM
INPUTS
OUTPUTS
Steady
Changing from H to L
Changing from L to H
Don’t Care, Any Change Permitted
Changing, State Unknown
Does Not Apply
Centerline is High Impedance
State (Hi-Z)
TEST CONDITIONS
Table 1. AC Test Specifications
DEVICE
UNDER
TEST
CL
Test Condition
Output Load
Output Load Capacitance
Input Rise and Fall Times
Input Signal Low Level
Input Signal High Level
Input Timing Reference
Level
Output Timing Reference
Level
Value
Unit
See Test Setup
15
pF
5
ns
0
V
0.9xVDDO
V
0.5xVDDO
V
0.5xVDDO
V
Figure 1. Test Setup
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 9 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
AC CHARACTERISTICS
Read Operation
Parameter
t1
t2
t3
t4
t5
t6
t7
t8
t9
t10
t11
t12
t13
td(W-R)
tsu(A-R)
tsu(S-R)
ta(S)
ta(R)
th(R-A)
th(R-S)
th(R-Q)
th(R-S)
tdis(R)
tdis(S)
tw(RL)
tw(RH)
Test
Setup
Description
WRn High to RDn Low delay
A0 setup to RDn Low
CSn setup to RDn Low
D[7:0] valid from CSn Low
D[7:0] valid from RDn Low
A0 hold after RDn High
CSn hold after RDn High
D[7:0] hold after RDn High
D[7:0] hold after CSn High
D[7:0] Hi-Z after RDn High
D[7:0] Hi-Z after CSn High
RDn Low pulse width
RDn High pulse width
Min
Max
Unit
20
10
0
RDn ≤ VIL
CSn ≤ VIL
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
40
40
5
0
0
0
CSn ≤ VIL
RDn ≤ VIL
CSn ≤ VIL
RDn ≤ VIL
20
20
40
20
A0
t2
t6
CSn
t7
t3
t13
t12
RDn
t11
t1
t9
WRn
t4
t10
t5
D[7:0]
t8
Data valid
Hi-Z
Figure 2. Read Operation Timing
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 10 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
Write Operations
Parameter
t14
t15
t16
t17
t18
t19
t20
t21
t22
t23
td(R-W)
tsu(A-W)
tsu(S-W)
tsu(D-W)
th(W-A)
th(W-S)
th(W-D)
th(W-S)
tw(WL)
tw(WH)
Description
Min
RDn High to WRn Low delay
A0 setup to WRn Low
CSn setup to WRn Low
Input data setup to WRn Low
A0 hold after WRn High
CSn hold after WRn High
Input data hold after WRn High
Input data hold after CSn High
WRn Low pulse width
WRn High pulse width
Max
Unit
20
10
10
10
5
5
5
5
20
20
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
A0
t18
t15
CSn
t19
t16
RDn
t21
t23
t14
t22
WRn
t17
D[7:0]
t20
Data valid
Figure 3. Write Operation Timings
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 11 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
SPI Slave Timing (1.8 V VDDO)
Parameter
Test
Setup
Description
t24
t25
t26
t27
t28
tw(KL)
tw(KH)
ta(S)
tsu(D-K)
SCK Low pulse width
SCK High pulse width
MISO valid from SCSn Low
MOSI setup to SCK High
ta(K-Q)
SCK Low to MISO valid
t29
tdis(S)
SCSn High to MISO Hi-Z
Min
Max
35
35
25
10
SCSn ≤
VIL
Unit
ns
ns
ns
ns
27
ns
15
ns
Max
Unit
SPI Slave Timing (2.5 V or 3.3 V VDDO)
Parameter
Test
Setup
Description
t24
t25
t26
t27
t28
tw(KL)
tw(KH)
ta(S)
tsu(D-K)
SCK Low pulse width
SCK High pulse width
MISO valid from SCSn Low
MOSI setup to SCK High
ta(K-Q)
SCK Low to MISO valid
t29
tdis(S)
SCSn High to MISO Hi-Z
Min
25
25
20
5
SCSn ≤
VIL
ns
ns
ns
ns
20
ns
15
ns
SCS
n
t25
SCK
(CPOL = 0)
t24
t27
MOSI
t26
t28
t29
Hi-Z
MISO
Figure 4. SPI Slave Timing
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 12 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
INTRn Timing
Parameter
t30
td(E-I)
t31
td(W-I)
Test
Setup
Description
Interrupt Event or INT Register
status to INTRn valid.
Writing INT Register to INTRn
valid.
Min
Max
Unit
60
ns
60
ns
t30
INT EVENT
t31
WRn
INTRn
Figure 5. INTRn Timing
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 13 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
SENSOR PINOUT DESCRIPTION
14
13
D6/
MOSI
D7/
MISO
12
11
TCLKIN
A0/
SCK
10
RDn
9
8
7
6
5
4
3
2
1
WRn
CSn/
SCSn
VSSC
VSSC
VDDC
VDDO
VSSO
SHGND
SHGND
Top View
D5/
SCK_
INV
D4
D3
D2
D1
D0
INTRn
VSSC
VSSC
VDDC
VDDO
VSSO
SHGND
SHGND
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Sensor Pinout Table
Pin#
Name
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
SHGND
SHGND
VSSO
VDDO
VDDC
VSSC
VSSC
CSn / SCSn
WRn
RDn
A0 / SCK
TCLKIN
D7 / MISO
D6 / MOSI
D5 / SCK_INV
D4
D3
D2
D1
D0
INTRn
VSSC
VSSC
VDDC
VDDO
VSSO
SHGND
SHGND
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 14 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
LGA PACKAGE MECHANICAL DIMENSIONS
All measurements in millimeters.
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 15 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
TOP VIEW PIN 1 MARK
ATW3xx sensors have a microscopic pin 1 indicator on the top surface of the package to mark the
orientation of pin 1. Please refer to the diagram below. The pin 1 orientation is marked by a single
non-right-angled corner of the sensing region. The other three corners of the sensing region have
right-angled corners. The pin 1 indicator allows the orientation of the sensor to be determined by
microscope inspection and/or through automated optical inspection of the top surface of the sensor.
Top View of ATW3xx Sensor
Pin 1
(A1 Corner)
The metal ring may be either
gold-colored or silver-colored depending on the
product version.
Non-Right-Angled
corner indicates Pin 1
Right-Angled
Corner
Enlarged View of Circled Region
This marking is a recent addition to the ATW3xx. For information on whether the particular sensors
that you have include this marking or not, please contact your local sales person.
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 16 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
RECOMMENDED LAND PATTERN
Recommended land pattern for the ATW3xx LGA. All dimensions are in millimeters.
Please note that the recommended land pattern pad size is the same as the LGA pad size. No over
or under sizing of pads is recommended.
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 17 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
SENSOR HANDLING GUIDELINES
This information is provided for reference only. Refer to the Manufacturing Guidelines
document (631-0002-002) for the latest and most complete guidelines and for additional
details on sensor handling during manufacturing operations such as SMT and assembly.
1)
2)
3)
4)
5)
6)
Do not allow the sensor’s exposed die surface to come in contact with any hard or metallic
objects.
If the sensors need to be manipulated by hand, operators should use anti-static finger cots and
either a static dissipative rubber tipped vacuum wand (or pen) or static dissipative (conductive
filament) plastic tipped tweezers. When using vacuum wands (or pens), ensure that the tip of the
metal capillary does not extend beyond the rubber suction cup. When using tweezers, ensure the
sensor die surface is not allowed to come in contact with the tweezers’ tips. Both tweezers tips
and rubber cups should be placed on a regular replacement schedule to prevent wear-out
damage.
Do not stack sensor boards directly on top of each other. Use anti-static foam spacers to
separate boards if stacking is absolutely necessary.
If protective tape is used on the sensor surface, it should be electrically conductive/static
dissipative and not leave adhesive residue, such as a Kapton film tape with silicone adhesive.
When handling sensors and sensor sub-assemblies, operators must be properly grounded by
one of the following:
z A wrist strap connected to ground
z A minimum of one heel ground with both feet on a static dissipative floor
surface.
When not being processed, sensors and sensor assemblies must be stored in static shielded
boxes or antistatic or static dissipative plastic bags.
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 18 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
PRODUCT CONFIGURATION OPTIONS
ATW3XX–YY–Z1Z2Z3Z4
Special Configuration Designator
Shipping Configuration
Package
Product Family
Where:
ATW3XX indicates the ATRUA Wings Product Family and Surface Color:
ATW310 – Gold-Colored Sensor Surface Border
ATW320 – Silver-Colored Sensor Surface Border
YY indicates PACKAGE:
LA – Land Grid Array (LGA) package
Z1 indicates the SHIPPING CONFIGURATION :
0 – Standard Trays – maximum of 240 units per tray
1 – Standard Tape & Reel1 – maximum of 3500 units per reel
Z2Z3Z4 is a designator for other SPECIAL CONFIGURATIONS:
000 – Standard Configuration
Example:
ATW310-LA-1000 designates an ATW300 family sensor with gold-color sensor
surface, LGA package, shipped in Tape & Reel configuration.
Note 1: Please refer to Atrua’s LGA Tape and Reel Specification for further detail.
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 19 of 20
ATW300 Fingerprint Touch Sensor Family Data Sheet
IMPORTANT NOTICE
© 2001-2007 by Atrua Technologies. All rights reserved. No part of this document may be copied or reproduced in any form
or by any means without the prior written consent of Atrua.
This document describes a device currently under development by Atrua, and the information in this document is subject to
change without notice. Atrua shall not be responsible for any errors that may appear in this document and makes no
commitment to update or keep current the information contained in this document. Atrua advises its customers to obtain the
latest version of the device specification to verify, before placing orders, that the information being relied upon by the
customer is current.
Devices sold by Atrua are covered by warranty and patent indemnification provisions appearing in Atrua Terms and
Conditions of Sale only. Atrua makes no warranty, express, statutory, implied or by description, regarding the information
set forth herein or regarding the freedom of the described devices from intellectual property infringement. Atrua makes no
warranty of merchantability or fitness for any purpose.
Atrua’s products are not authorized for use as critical components in life support devices or systems unless a specific
written agreement pertaining to such intended use is executed between the customer and Atrua prior to use. Life support
devices or systems are those which are intended for surgical implantation into the body, or which sustain life whose failure
to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected
to result in significant injury to the user.
Atrua Technologies
1696 Dell Avenue
Campbell, CA 95008 USA
Telephone: (408) 370-8000
Fax: (408) 370-8010
Email: [email protected]
www.atrua.com
850-0003-001 Rev. E
December 2007
Atrua Technologies
Confidential & Proprietary
Page 20 of 20
Similar pages