Welcome to the official website of Shenzhen Ledfocus Precision Manufacturing Co., Ltd.!
News
News
Hot products

Service Hotline

0755-29727486 0755-83734215 0755-83734236
Industry news

Where are you now:Home >> News >> Industry news
Introduction to the production characteristics of SMT patch
Time:2023-02-16 Read: 1326

   Introduction of SMT patch production characteristics.


As the last process of SMT production process, reflow soldering combines the defects of printing and surface mounting, including less tin, short circuit, side stand, deviation, missing parts, multiple parts, wrong parts, reverse direction, reverse side, erection, cracks, Weld bead, void and gloss, among which erection, crack, weld bead, void and gloss are.


   Erection: The phenomenon that one end of an electronic component leaves the pad and tilts or rises.


   Tin connection or short circuit: The solder joint connection occurs between two or more unconnected solder joints, or the solder of the solder joint is poorly connected to adjacent wires.


  Empty soldering: An assembly phenomenon in which the solderable end of a component is not connected to the pad.


   Reverse: The direction is wrong when the polar component is installed.


  Parts error: The model and specification of the part installed in the specified position do not meet the requirements.


   Few parts: The material is not installed where the parts are needed.


  Exposed copper: The green oil on the surface of the PCBA is peeled off or damaged, and the copper foil is exposed.


  Bubble: PCBA/PCB surface is deformed due to area expansion.


   Tin hole: After passing through the furnace, there are pores and pin holes on the solder joints of the components.

Contact Us
Shenzhen Ledfocus Precision Manufacturing Co., Ltd.

Address: Room 1204, Dahong (Xinqiao) Science and Technology Innovation Park, No. 48, Xinyu Road, Shajing Street, Baoan District, Shenzhen

Phone: 0755-29727486 0755-83734215 0755-83734236

Person in charge: Mr. Fan 13088821718

Email: roman@leikashi.com

Business section #605

Email: allen@leikashi.com

Website: www.leikashi.com

Service hotline
0755-83734236
© 2020 Shenzhen Ledfocus Precision Manufacturing Co., Ltd. All rights reserved 粤ICP备2021139374号
  • Links: