Laser Solder Jetting system
Laser Solder Jetting system
Operating
Model: SB² Jet
Function: The equipment is used for selective laser ball placement and array micro-bump fabrication on the pads of chips, various substrates, wafers and other devices.
Engineer: Ms.Liu / 34206126-6027 / liudanqh@1
Location: East Area, Packaging II Zone
Equipment ID: EPK2LSJ01
  • Basic Equipment Information
  • Operating Principle
  • Typical Application Case
Main Application

Laser ball placement machines are used for selective laser ball planting and array micro-bump machining on the pads of semiconductor and microelectronic devices such as single chips, various substrates, wafers and BGAs. They are especially suitable for the fabrication of flip-chip bumps on single chips and ball placement for fine-pitch solder balls.

 

Process / Testing Capabilities

The laser ball placement machine supports solder ball diameters ranging from 40μm to 450μm, is compatible with various common alloy solder balls, and enables non-contact bonding.

 

Technical Specifications

  • Worktable size: 320×320mm;
  • Solder ball diameter range: 40μm–450μm;
  • Compatible with solder balls of various alloys: SnAgCu, SnAg, SnPb, AuSn, InSn, SnBi, etc;
  • Maximum bumping speed: 5 balls per second.
Laser ball bumping is a method that uses laser energy to melt solder balls and eject them onto corresponding pads to form bumps.

A single solder ball is first delivered to the nozzle by the ball feeding system. It is heated and melted by laser irradiation, then ejected onto the pad surface under the action of nitrogen flow, completing the wetting and soldering of the solder ball.

Flip-chip Bump (Image sourced from the official promotional picture of the equipment website)

100μm SAC solder ball

450μm SAC solder ball

The surface of the sample pad shall be wettable by the bumping solder and kept clean.
The list below shows FAQs (click a question to view the answer). If your question is not listed, you can leave a message using the link.
FAQs
  • 01
    为什么有些样品无法完成植球或者植球效果不理想?

    主要表现为焊球从焊盘表面飞走或位置偏移,一般为焊盘金属与焊球之间浸润不好或焊盘表面不洁净。

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