Applications of screen printing
28 May 2020
In late years, printed electronics technology has been drunk with an lengthen in the following demands:
Thin film coating for thinner electronic devices with higher density intrinsic construction
Thick film coating for improving circumlocution isolation
Coating of highly viscous weighty in ultrafine lines
Improved printing (coating) position truthfulness for stay miniaturization of electronic devices
Screen printing has evolved and improved as a indicate of convince these demands, specifically custom in the following applications.
Multi-layer ceramic capacitors (MLCCs)
Electrode layers are printed as thin as option in manifold coping to effect miniaturization and larger character.
Multi-layer inductors (flake noise)
Coil sample are printed in multiple seam with conductant ink on ferrite or insulator ceramic sail. High-analysis printing empower turnings miniaturization.
Chip resistors
Terminal electrodes and opposing elements are printed on thin ceramic PCBs through screen printing. After printing, a optical maser cuts the resistive element while the resistance of each IC is deliberate to hold the target resistance.
Cream braze printing
A by-past of cosmetic soft solder (solder triturate and fuse) is applied on a PCB, and components are mounted automatically. The PCB is then sent through a flow calcar to realize definiteness soldering.
Touch compartment sensors
Screen typography and photolithography can be used for making diaphanous electrode patterns on infect medallion. The former has the mastery of higher work efficiency and cloudiness price, while the latter has the increase of dear-decision design.
Flexible devices (FPCs)
Printing is likely on flexible PCBs (FPCs) made of PET cloudy. Screen printing can be utility not only for example but also for deep coating, excavation plugging, and layer stacking. Highly efficient manufacturing of 3D products such as PE products and sensors is also possible.
MEMS (Micro Electro Mechanical Systems)
Becoming increasingly plain in late donkey’s years, plastic MEMS uses shade printing to figure an ultraist-precision perplexity structure by coating tall viscoelastic conductant paste on moldable PCBs.