Transcript ByMARODE DNYANESHWAR D. B.E.(E&C)       Surface Mount Technology Role of SMT Benefits Surface Mount Devices Advantages Challenges.

ByMARODE DNYANESHWAR D.
B.E.(E&C)






Surface Mount Technology
Role of SMT
Benefits
Surface Mount Devices
Advantages
Challenges

SMT is a Technology that uses surface mount
devices, which are often leadless and require
small space.



Allows high-speed component mounting and
reduces PCB size.
Supports Advance consumer products ( LCD
color TV, video cameras & so on).
Has the great advantage in portable stereos,
CD players.




Play a predominant role to increase area
efficiency & the corresponding to the system
volume.
Electrical and Mechanical features are only
achievable with SMT.
Small light weight portable components are
mount only by using SMT.
SMT entails making reliable interconnections
on the board at great speed, in the smallest
possible area.
•
•
•
•
Reduction in package size.
Reduction in weight of product.
Noise Reduction.
Higher operating speed due to
shorter interconnections.
COMPONENT PLACEMENT
SMD’s on both sides.
SMD’s on one side & discrete components
on other sides.
Randomly distributed on either sides.

Screen Printing Method.

Glue Method.
Paste Application on
PCB by SCREEN PRINTING
Pick & Place of components by
HP-180 & SP-120
Visual Inspection Manually
Reflow Process
•
Glue Application on PCB by HS-180
Pick & place of components by HP-180 & SP-120.
Visual Inspection Manually.
Reflow Process to cure Glue.
•
Wave Soldering Process.
•
•
•
MACHINES USED
SP 120
Manufactured by Siemens
It is multi headed machine
Placement speed is 7200 components/ hour
Easy to used Window based Software
HS 180
Manufactured by Siemens
It is single headed machine
Placement speed is 4200 components/hour
CHALLENGS
Need latest Technology
Requires well trained worker
Complications