About mini LED
What is a mini LED?
We've come to see news about mini LEDs and micro LEDs a lot.
There seems to be no clear definition, but a mini LED refers to a bare chip LED with a size of about □ 0.1 mm, and an LED with a size of several μm to several tens of μm smaller than that is called a micro LED. It seems that there are many cases.
Since the mini LED is a bare chip, it can save a lot of space and height compared to the packaged product (bullet type or packaged for SMT).
There are exceptions, but basically it is a single color LED for bare chips, and we can make various colors emit light by arranging RGB chips, or we can spread LEDs of the same color to make surface emission.
In addition, the small chip size minimizes the presence when not lit.
It seems that product development is being carried out for various applications by taking advantage of these characteristics.
Mini LED bonding technology
Ings Shinano has introduced a mini LED bonding machine and is developing LED bare chip bonding technology. This bonding machine is intended for chips with a device capacity of up to 0.1 x 0.1 mm, and can be said to be a bonding machine suitable for the mini LED area.
Mini LEDs have a smaller electrode pad size, which makes reflow bonding extremely difficult.
Therefore, various bonding techniques are used to make electrical connections. We have multiple bonding technologies and can bond by the appropriate method according to the chip size and the type of substrate.
Mini LED bonding on PCB
About prototype
The mini LED is a bare chip LED with a size of about 0.1 to 0.2 mm, which is an unprecedented device, and after receiving a consultation as to whether it can be applied to various products, we actually make prototypes and help with basic evaluation.
Please feel free to contact us regarding prototypes, experiments, and evaluations of products that use mini LEDs.