Si8902AEDB

更新时间:2024-09-16 08:25:14
品牌:VISHAY
描述:N-Channel 24 V (D-S) MOSFET

Si8902AEDB 概述

N-Channel 24 V (D-S) MOSFET

Si8902AEDB 数据手册

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Si8902AEDB  
Vishay Siliconix  
www.vishay.com  
N-Channel 24 V (D-S) MOSFET, Common Drain  
FEATURES  
• TrenchFET® power MOSFET  
MICRO FOOT® 2.4 x 1.6  
S1  
2
G1  
• Small 2.4 mm x 1.6 mm outline  
• Thin 0.6 mm max. height  
3
S2  
4
8902AE  
xxx  
• Typical ESD protection 5000 V (HBM)  
1
S1  
• Material categorization: for definitions of  
compliance please see www.vishay.com/doc?99912  
6
G2  
5
S2  
1
Backside View  
Bump Side View  
S
1
APPLICATIONS  
Marking code: 8902AE  
• Battery protection switch  
• Bi-directional switch  
PRODUCT SUMMARY  
G
G
1
2
VS1S2 (V)  
24  
R
R
RS1S2 max. () at VGS = 4.5 V  
RS1S2 max. () at VGS = 3.7 V  
RS1S2 max. () at VGS = 2.5 V  
RS1S2 max. () at VGS = 1.8 V  
0.0280  
0.0290  
0.0310  
0.0370  
5.9  
I
S1S2 (A) a  
Configuration  
Common drain  
N-Channel  
S
2
ORDERING INFORMATION  
Package  
MICRO FOOT  
Lead (Pb)-free and halogen-free  
Si8902AEDB-T2-E1  
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C, unless otherwise noted)  
PARAMETER  
SYMBOL  
LIMIT  
24  
UNIT  
Source 1-to-source 2 voltage  
Gate-source voltage  
VS1S2  
V
VGS  
12  
TC = 25 °C  
11 b  
TC = 85 °C  
TA = 25 °C  
TA = 85 °C  
7.9 b  
5.9 a  
4.3 a  
40  
5.7 b  
3 b  
Continuous source 1-to-source 2 current  
IS1S2  
(TJ = 150 °C)  
A
Pulsed source 1-to-source 2 current (t = 100 μs)  
Maximum power dissipation  
ISM  
TC = 25 °C  
TC = 85 °C  
PD  
W
TA = 25 °C  
TA = 85 °C  
1.7 a  
0.9 a  
-55 to +150  
260  
Operating junction and storage temperature range  
Soldering recommendations (peak temperature) c  
TJ, Tstg  
°C  
THERMAL RESISTANCE RATINGS  
PARAMETER  
SYMBOL  
TYPICAL  
MAXIMUM  
UNIT  
Maximum junction-to-ambient a, d  
Maximum junction-to-case b  
t 5 s  
RthJA  
RthJC  
60  
18  
75  
22  
°C/W  
Steady state  
Notes  
a. Surface mounted on 1" x 1" FR4 board with full copper, t = 5 s  
b. The case is defined as the top surface of the package  
c. Refer to IPC/JEDEC® (J-STD-020), no manual or hand soldering  
d. Maximum under steady state conditions is 120 °C/W  
S15-1171-Rev. B, 25-May-15  
Document Number: 62948  
1
For technical questions, contact: pmostechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
Si8902AEDB  
Vishay Siliconix  
www.vishay.com  
SPECIFICATIONS (TJ = 25 °C, unless otherwise noted)  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN.  
TYP.  
MAX.  
UNIT  
Static  
Source 1-to-source 2 breakdown voltage  
VS1S2  
VGS(th)/TJ  
VGS(th)  
VGS = 0 V, IS = 250 μA  
IS = 250 μA  
24  
-
-
3
-
-
-
-
-
-
-
-
V
mV/°C  
V
VGS(th) temperature coefficient  
Gate-source threshold voltage  
VSS = VGS, IS = 250 μA  
0.4  
-
0.9  
0.2  
10  
1
VSS = 0 V, VGS  
SS = 0 V, VGS  
=
=
4.5 V  
12 V  
μA  
Gate-source leakage  
IGSS  
V
-
mA  
VSS = 24 V, VGS = 0 V  
VSS = 24 V, VGS = 0 V, TJ = 85 °C  
VSS 5 V, VGS = 4.5 V  
-
Zero gate voltage source current  
On-state source current a  
IS1S2  
IS(on)  
μA  
A
-
10  
-
5
-
VGS = 4.5 V, ISS = 1 A  
0.0215 0.0280  
0.0222 0.0290  
0.0240 0.0310  
0.0260 0.0370  
VGS = 3.7 V, ISS = 1 A  
VGS = 2.5 V, ISS = 1 A  
VGS = 1.8 V, ISS = 1 A  
-
Source1-to-source 2 on-state resistance a  
RS1S2  
-
-
Forward transconductance a  
Dynamic b  
gfs  
VSS = 10 V, ISS = 1 A  
-
15  
-
S
Gate resistance  
Turn-on delay time  
Rise time  
Rg  
td(on)  
tr  
f = 1 MHz  
-
-
-
-
-
-
-
-
-
5300  
1.5  
3.5  
25  
-
3
7
VSS = 12.5 V, RL = 12.5   
ISS 1 A, VGEN = 4.5 V, Rg = 1   
Turn-off delay time  
Fall time  
td(off)  
tf  
td(on)  
tr  
td(off)  
tf  
50  
25  
1.4  
2.6  
70  
25  
12  
μs  
Turn-on delay time  
Rise time  
0.7  
1.3  
35  
VSS = 12.5 V, RL = 12.5   
ISS 1 A, VGEN = 10 V, Rg = 1   
Turn-off delay time  
Fall time  
12  
Notes  
a. Pulse test; pulse width 300 μs, duty cycle 2 %  
b. Guaranteed by design, not subject to production testing  
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation  
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum  
rating conditions for extended periods may affect device reliability.  
S15-1171-Rev. B, 25-May-15  
Document Number: 62948  
2
For technical questions, contact: pmostechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
Si8902AEDB  
Vishay Siliconix  
www.vishay.com  
TYPICAL CHARACTERISTICS (25 °C, unless otherwise noted)  
10-2  
1.5  
10-3  
10-4  
10-5  
10-6  
10-7  
10-8  
10-9  
1.2  
0.9  
0.6  
0.3  
0
TJ = 150 °C  
TJ = 25 °C  
TJ = 25 °C  
0
3
6
9
12  
3.0  
30  
0
3
6
9
12  
VGS - Gate-Source Voltage (V)  
VGS - Gate-to-Source Voltage (V)  
Gate Current vs. Gate-Source Voltage  
Gate Current vs. Gate-Source Voltage  
40  
V
10  
8
GS = 5 V thru 3 V  
VGS = 2.5 V  
30  
20  
10  
0
6
V
GS = 1.5 V  
TC = 25 °C  
4
TC = 125 °C  
2
VGS = 1 V  
2.5  
TC = - 55 °C  
1.0 1.2  
0
0.0  
0.5  
1.0  
1.5  
2.0  
0.0  
0.2  
0.4  
0.6  
0.8  
VGS - Gate-to-Source Voltage (V)  
VDS - Drain-to-Source Voltage (V)  
Output Characteristics  
Transfer Characteristics  
1.7  
1.6  
1.5  
1.4  
1.3  
1.2  
1.1  
1.0  
0.9  
0.8  
0.7  
0.05  
0.04  
0.03  
0.02  
0.01  
0
VGS = 4.5 V, 3.7 V, 2.5 V, 1.8V; ID = 1A  
VGS = 1.8 V  
VGS = 3.7 V  
VGS = 2.5 V  
VGS = 4.5 V  
- 50 - 25  
0
25  
50  
75  
100 125 150  
0
5
10  
15  
20  
25  
ID - Drain Current (A)  
TJ - Junction Temperature (°C)  
On-Resistance vs. Drain Current  
On-Resistance vs. Junction Temperature  
S15-1171-Rev. B, 25-May-15  
Document Number: 62948  
3
For technical questions, contact: pmostechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
Si8902AEDB  
Vishay Siliconix  
www.vishay.com  
TYPICAL CHARACTERISTICS (25 °C, unless otherwise noted)  
0.06  
0.05  
0.04  
0.03  
0.02  
0.01  
0
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
ID = 1 A  
TJ = 125 °C  
ID = 250 μA  
TJ = 25 °C  
- 50 - 25  
0
25  
50  
75  
100 125 150  
0
1
2
3
4
5
TJ - Temperature (°C)  
VGS - Gate-to-Source Voltage (V)  
On-Resistance vs. Gate-to-Source Voltage  
Threshold Voltage  
100  
10  
1
30  
25  
20  
15  
10  
5
TJ = 150 °C  
TJ = 25 °C  
0.1  
0
0.0  
0.3  
0.6  
0.9  
1.2  
1.5  
0.01  
0.1  
1
10  
100  
1000  
VSD - Source-to-Drain Voltage (V)  
Time (s)  
Source-Drain Diode Forward Voltage  
Single Pulse Power (Junction-to-Ambient)  
S15-1171-Rev. B, 25-May-15  
Document Number: 62948  
4
For technical questions, contact: pmostechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
Si8902AEDB  
Vishay Siliconix  
www.vishay.com  
TYPICAL CHARACTERISTICS (25 °C, unless otherwise noted)  
100  
Limited by RDS(on)  
*
I
DM Limited  
100 µs  
I
D(on)Limited  
10  
1 ms  
10 ms  
1
0.1  
100 ms  
10 s  
1 s  
DC  
TA = 25 °C  
BVDSS Limited  
0.01  
0.1  
1
10  
VDS - Drain-to-Source Voltage (V)  
* VGS > minimum VGS at which RDS(on) is specified  
100  
Safe Operating Area, Junction-to-Ambient  
6
5
4
3
2
1
0
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
0
25  
50  
75  
100  
125  
150  
0
25  
50  
75  
100  
125  
150  
TA - Case Temperature (°C)  
TA - Ambient Temperature (°C)  
Current Derating a  
Power Derating  
Notes  
When mounted on 1" x 1" FR4 with full copper  
a. The power dissipation PD is based on TJ max. = 150 °C, using junction-to-ambient thermal resistance, and is more useful in settling the  
upper dissipation limit for cases where additional heatsinking is used. It is used to determine the current rating, when this rating falls below  
the package limit  
S15-1171-Rev. B, 25-May-15  
Document Number: 62948  
5
For technical questions, contact: pmostechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
Si8902AEDB  
Vishay Siliconix  
www.vishay.com  
TYPICAL CHARACTERISTICS (25 °C, unless otherwise noted)  
2
1
Duty Cycle = 0.5  
0.2  
Notes:  
0.1  
0.1  
P
DM  
0.05  
t
1
t
2
t
t
1
2
0.02  
1. Duty Cycle, D =  
2.  
P
ER  
U
NIT  
B
ASE = RTHJA  
(t)  
= 120°C/W  
3. TJM - T = P  
Z
DM thJA  
A
Single Pulse  
0.01  
4. Surface Mounted  
-4  
-3  
10  
-2  
10  
-1  
10  
10  
1
10  
100  
600  
Square Wave Pulse Duration (s)  
Normalized Thermal Transient Impedance, Junction-to-Ambient (On 1" x 1" FR4 board with maximum copper)  
2
1
Duty Cycle = 0.5  
0.2  
0.1  
0.1  
0.05  
0.02  
Single Pulse  
0.01  
-4  
10  
-3  
10  
-2  
-1  
10  
10  
Square Wave Pulse Duration (s)  
1
Normalized Thermal Transient Impedance, Junction-to-Case (on 1" x 1" FR4 board with minimum copper)  
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon  
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package / tape drawings, part marking, and  
reliability data, see www.vishay.com/ppg?62948.  
S15-1171-Rev. B, 25-May-15  
Document Number: 62948  
6
For technical questions, contact: pmostechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
Package Information  
www.vishay.com  
Vishay Siliconix  
MICRO FOOT®: 6-Bumps  
(1.6 mm x 2.4 mm, 0.8 mm Pitch, 0.290 mm Bump Height)  
E
6x Ø b1  
S
e
e
Mark on backside of die  
S2  
S1  
S1  
G1  
G2  
XXXXXX  
XXX  
S2  
b1  
Note 5  
6x 0.30 to 0.31  
(Note 3)  
Solder mask-0.4  
Note 2  
b
K
b Diameter bump  
(Note 1)  
e
e
Recommended land pattern  
Notes  
1. Bumps are 95.5/3.8/0.7 Sn/Ag/Cu.  
2. Backside surface is coated with a Ti/Ni/Ag layer.  
3. Non-solder mask defined copper landing pad.  
4. Laser marks on the silicon die back.  
5. “b1” is the diameter of the solderable substrate surface, defined by an opening in the solder resist layer solder mask defined.  
6. • is the location of pin 1  
MILLIMETERS  
NOM.  
0.575  
INCHES  
NOM.  
DIM.  
MIN.  
0.550  
0.260  
0.290  
0.370  
MAX.  
0.600  
0.290  
0.310  
0.410  
MIN.  
MAX.  
0.0236  
0.0114  
0.0122  
0.0161  
A
A1  
A2  
b
0.0217  
0.0102  
0.0114  
0.0146  
0.0226  
0.0108  
0.0118  
0.0153  
0.0118  
0.0314  
0.0150  
0.0614  
0.0929  
0.0072  
0.275  
0.300  
0.390  
b1  
e
0.300  
0.800  
s
0.360  
1.520  
2.320  
0.155  
0.380  
0.400  
1.600  
2.400  
0.215  
0.0141  
0.0598  
0.0913  
0.0061  
0.0157  
0.0630  
0.0945  
0.0084  
D
1.560  
E
2.360  
K
0.185  
Note  
Use millimeters as the primary measurement.  
ECN: T15-0143-Rev. A, 27-Apr-15  
DWG: 6036  
Revision: 27-Apr-15  
Document Number: 69350  
1
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
AN824  
Vishay Siliconix  
PCB Design and Assembly Guidelines  
For MICRO FOOTr Products  
Johnson Zhao  
INTRODUCTION  
Vishay Siliconix’s MICRO FOOT product family is based on a  
wafer-level chip-scale packaging (WL-CSP) technology that  
implements a solder bump process to eliminate the need for an  
outer package to encase the silicon die. MICRO FOOT  
products include power MOSFETs, analog switches, and  
power ICs.  
For battery powered compact devices, this new packaging  
technology reduces board space requirements, improves  
thermal performance, and mitigates the parasitic effect typical  
of leaded packaged products. For example, the 6bump  
MICRO FOOT Si8902EDB common drain power MOSFET,  
which measures just 1.6 mm x 2.4 mm, achieves the same  
performance as TSSOP8 devices in a footprint that is 80%  
smaller and with a 50% lower height profile (Figure 1). A  
MICRO FOOT analog switch, the 6bump DG3000DB, offers  
low charge injection and 1.4 W onresistance in a footprint  
measuring just 1.08 mm x 1.58 mm (Figure 2).  
FIGURE 1. 3D View of MICRO FOOT Products Si8902DB and  
Vishay Siliconix MICRO FOOT products can be handled with  
the same process techniques used for high-volume assembly  
of packaged surface-mount devices. With proper attention to  
PCB and stencil design, the device will achieve reliable  
performance without underfill. The advantage of the device’s  
small footprint and short thermal path make it an ideal option  
for space-constrained applications in portable devices such as  
battery packs, PDAs, cellular phones, and notebook  
computers.  
Si8900EDB  
3
2
1
0.18 ~ 0.25  
A
B
1.08  
0.5  
This application note discusses the mechanical design and  
reliability of MICRO FOOT, and then provides guidelines for  
board layout, the assembly process, and the PCB rework  
process.  
0.285  
0.5  
0.285  
1.58  
FIGURE 2. Outline of MICRO FOOT CSP & Analog  
Switch DG3000DB  
Document Number: 71990  
06-Jan-03  
www.vishay.com  
1
AN824  
Vishay Siliconix  
TABLE 1  
Main Parameters of Solder Bumps in MICRO FOOT Designs  
MICRO FOOT CSP  
Bump Material  
Bump Pitch*  
Bump Diameter*  
Bump Height*  
MICRO FOOT CSP MOSFET  
0.8  
0.5  
0.5  
0.37-0.41  
0.18-0.25  
0.32-0.34  
0.26-0.29  
0.14-0.19  
0.21-0.24  
Eutectic Solder:  
63Sm/37Pb  
MICRO FOOT CSP Analog Switch  
MICRO FOOT UCSP Analog Switch  
* All measurements in millimeters  
MICRO FOOT’S DESIGN AND RELIABILITY  
BOARD LAYOUT GUIDELINES  
Board materials. Vishay Siliconix MICRO FOOT products are  
designed to be reliable on most board types, including organic  
boards such as FR-4 or polyamide boards. The package  
qualification information is based on the test on 0.5-oz. FR-4  
and polyamide boards with NSMD pad design.  
As a mechanical, electrical, and thermal connection between  
the device and PCB, the solder bumps of MICRO FOOT  
products are mounted on the top active surface of the die.  
Table 1 shows the main parameters for solder bumps used in  
MICRO FOOT products. A silicon nitride passivation layer is  
applied to the active area as the last masking process in  
fabrication,ensuring that the device passes the pressure pot  
test. A green laser is used to mark the backside of the die  
without damaging it. Reliability results for MICRO FOOT  
products mounted on a FR-4 board without underfill are shown  
in Table 2.  
Land patterns. Two types of land patterns are used for  
surface-mount packages. Solder mask defined (SMD) pads  
have a solder mask opening smaller than the metal pad  
(Figure 3), whereas on-solder mask defined (NSMD) pads  
have a metal pad smaller than the solder-mask opening  
(Figure 4).  
TABLE 2  
MICRO FOOT Reliability Results  
NSMD is recommended for copper etch processes, since it  
provides a higher level of control compared to SMD etch  
processes. A small-size NSMD pad definition provides more  
area (both lateral and vertical) for soldering and more room for  
escape routing on the PCB. By contrast, SMD pad definition  
introduces a stress concentration point near the solder mask  
on the PCB side that may result in solder joint cracking under  
extreme fatigue conditions.  
Test Condition C: 65_ to 150_C  
Test condition B: 40_ to 125_C  
121_C @ 15PSI 100% Humidity Test  
>500 Cycles  
>1000 Cycles  
96 Hours  
The main failure mechanism associated with wafer-level  
chip-scale packaging is fatigue of the solder joint. The results  
shown in Table 2 demonstrate that a high level of reliability can  
be achieved with proper board design and assembly  
techniques.  
Copper pads should be finished with an organic solderability  
preservative  
(OSP)  
coating.  
For  
electroplated  
nickel-immersion gold finish pads, the gold thickness must be  
less than 0.5 mm to avoid solder joint embrittlement.  
Solder Mask  
Copper  
Solder Mask  
Copper  
FIGURE 3. SMD  
FIGURE 4. NSMD  
Document Number: 71990  
06-Jan-03  
www.vishay.com  
2
AN824  
Vishay Siliconix  
Board pad design. The landing-pad size for MICRO FOOT  
products is determined by the bump pitch as shown in Table 3.  
The pad pattern is circular to ensure a symmetric,  
barrel-shaped solder bump.  
Chip pick-and-placement. MICRO FOOT products can be  
picked and placed with standard pick-and-place equipment.  
The recommended pick-and-place force is 150 g. Though the  
part will self-center during solder reflow, the maximum  
placement offset is 0.02 mm.  
Reflow Process. MICRO FOOT products can be assembled  
using standard SMT reflow processes. Similar to any other  
package, the thermal profile at specific board locations must  
be determined. Nitrogen purge is recommended during reflow  
operation. Figure 6 shows a typical reflow profile.  
TABLE 3  
Dimensions of Copper Pad and Solder Mask  
Opening in PCB and Stencil Aperture  
Solder Mask  
Opening  
Stencil  
Aperture  
Pitch Copper Pad  
0.33 " 0.01 mm  
Thermal Profile  
0.80 mm 0.30 " 0.01 mm 0.41 " 0.01 mm  
0.50 mm 0.17 " 0.01 mm 0.27 " 0.01 mm  
in ciircle aperture  
250  
0.30 " 0.01 mm  
in square aperture  
200  
150  
100  
50  
ASSEMBLY PROCESS  
MICRO FOOT products’ surface-mount-assembly operations  
include solder paste printing, component placement, and  
solder reflow as shown in the process flow chart (Figure 5).  
Stencil Design  
IIncoming Tape and Reel Inspection  
Solder Paste Printing  
Chip Placement  
0
0
100  
200  
300  
400  
Time (Seconds  
FIGURE 6. Reflow Profile  
Reflow  
Solder Joint Inspection  
Pack and Ship  
PCB REWORK  
To replace MICRO FOOT products on PCB, the rework  
procedure is much like the rework process for a standard BGA  
or CSP, as long as the rework process duplicates the original  
reflow profile. The key steps are as follows:  
FIGURE 5. SMT Assembly Process Flow  
1. Remove the MICRO FOOT device using a convection  
nozzle to create localized heating similar to the original  
reflow profile. Preheat from the bottom.  
Stencil design. Stencil design is the key to ensuring  
maximum solder paste deposition without compromising the  
assembly yield from solder joint defects (such as bridging and  
extraneous solder spheres). The stencil aperture is dependent  
on the copper pad size, the solder mask opening, and the  
quantity of solder paste.  
2. Once the nozzle temperature is +190_C, use tweezers to  
remove the part to be replaced.  
3. Resurface the pads using a temperature-controlled  
soldering iron.  
In MICRO FOOT products, the stencil is 0.125-mm (5-mils)  
thick. The recommended apertures are shown in Table 3 and  
are fabricated by laser cut.  
4. Apply gel flux to the pad.  
5. Use a vacuum needle pick-up tip to pick up the  
replacement part, and use a placement jig to placed it  
accurately.  
Solder-paste printing. The solder-paste printing process  
involves transferring solder paste through pre-defined  
apertures via application of pressure.  
6. Reflow the part using the same convection nozzle, and  
preheat from the bottom, matching the original reflow  
profile.  
In MICRO FOOT products, the solder paste used is UP78  
No-clean eutectic 63 Sn/37Pb type3 or finer solder paste.  
Document Number: 71990  
06-Jan-03  
www.vishay.com  
3
Legal Disclaimer Notice  
www.vishay.com  
Vishay  
Disclaimer  
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE  
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.  
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,  
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other  
disclosure relating to any product.  
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or  
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all  
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,  
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular  
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Statements regarding the suitability of products for certain types of applications are based on Vishay's knowledge of typical  
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements  
about the suitability of products for a particular application. It is the customer's responsibility to validate that a particular product  
with the properties described in the product specification is suitable for use in a particular application. Parameters provided in  
datasheets and / or specifications may vary in different applications and performance may vary over time. All operating  
parameters, including typical parameters, must be validated for each customer application by the customer's technical experts.  
Product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited  
to the warranty expressed therein.  
Hyperlinks included in this datasheet may direct users to third-party websites. These links are provided as a convenience and  
for informational purposes only. Inclusion of these hyperlinks does not constitute an endorsement or an approval by Vishay of  
any of the products, services or opinions of the corporation, organization or individual associated with the third-party website.  
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or for that of subsequent links.  
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining  
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.  
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please  
contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications.  
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by  
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© 2023 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED  
Revision: 01-Jan-2023  
Document Number: 91000  
1

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