Electronics Manufacturing
Service

SESUNG’s specialty to achieve Premium EMS is demonstrated
by our perfect manufacturing line.
Through our All In One manufacturing services, we streamline the entire process
and enable customers to focus on matters most to their business.
Flexible manufacturing system can respond to needs of the high quality products
for our customers.

01

Features of SESUNG Manufacturing

  • 1High-mix, Low-volume and Low-mix, High volume
  • 2Short lead time and Quick response system
  • 3Entire manufacturing process from SMT to assembly
  • 4Major facilities : SMT Line, Auto Selective Soldering Line, Wave Soldering
    Line, Conformal Coating Line, Chamber, ICT, X-Ray, Cleaning machine, JIG

02

Manufacturing Process Map

We apply the latest manufacturing process standard combined with our advanced facilities to bring your
products to market better, faster and smarter.

Standards
for Product
Process

Step 1

Searching
& Purchasing

Step 2

IQC
(Incoming Quality
Control)

Incoming Quality Control

IPC - A - 600
J - STD - 020
J - STD - 033
J - STD - 075

Chamber
Coating Strength
Measuring Instrument
Coating Thickness
Measuring Instrument

Step 3

PBA Process
(Printed Board Assembly)

SMT Process : IPC-A-610 / J-STD-001
Automatic Insertion : IPC-A-610 / J-STD-001
Manual Insertion : IPC-A-610 / J-STD-001
ASSL : IPC-A-610 / J-STD-001
Conformal Coating : IPC-SM-817 / IPC-A-610 / J-STD-001
Cleaning : J-STD-001 / IPC-TM-650

PrinterAuto
Selective Spray
Screen
Printer
Wave
Soldering M/C
Vision
Auto
elective Solder
Chip
Mounter
Auto Selective
Soldering Machine
Inline
Solder Temperature
Measuring
Instrument
PCB Water
Cleaning Machine
Conformal
Coating Machine
Reflow
N2
Generator

Step 4

IN-Circuit PCB Test
Functional Test

X-ray
Machine
In-Circuit
PCB Tester

Step 5

Assembly
Process

Step 6

OQC (Outgoing Quality Control)
EOL (End Of Line) Test
Lab View Test

QQC

IPC - A - 610
J - STD - 001

Automatic
Function Tester

Step 7

Packing

Packing

J - STD - 033

Step 8

OBA
( Buyer Inspection)

QQC

IPC - A - 610
J - STD - 001

03

Manufacturing Service Map

Our manufacturing service map imporves operational excellence, quality, productivity, responsiveness for customers.