Electronic Silver Paste For EMI
Product name: conductive paste
Classification ： electronic silver paste，silver conductive paste, copper paste
Synonyms: silver paste for electrical conductive, silver conductive adhesive paste
Main using: EMI, solar cell, thin film circuit, conductive material etc.
- Data Sheet
Product Parameter
| Product name | Model | Color | Use range |
| Silver-clad copper conductive paint | DD-305 | Silver copper | EMI, shielded rooms, conductive materials |
| Nickel conductive paint | DD-101 | Dark gray, black gray or silver gray | EMI, shielded rooms, conductive materials |
| Sterling silver conductive paint | DD-301 | Silver | EMI, shielded rooms, conductive materials |
| Hardware conductive paint | DD-300 | copper | EMI, shielded rooms, conductive materials |
| Special conductive paint for shield room | DD-500 | Copper or gray | EMI, shielded rooms, conductive materials |
Classification：silver conductive paste, copper paste
Synonyms: silver paste for electrical conductive, silver conductive adhesive paste
Main using: EMI, solar cell, thin film circuit, conductive material etc.
Shelf life: 6 months
Product using field including:
- Computer
- DVD and other household appliances
- Phone
- Wireless device
- Mobile phone
- RF power amplifier unit
- Car
- Military equipment
| Name | Silver conductive paste |
| Model | YS-AG-LI-AI156 |
| Solid content | 60~75% |
| Density g/cm³ | 2.0-2.5 |
| Viscosity (CPS) | 10，000-20，000（Rotary Viscometer, II unit 75rpm, 25 ℃ ） |
| Area（cm2/g） | 100-200 (Depends on film thickness) |
| Resistance per square（Ω/□） | <0.025 |
| Adhesion | No shedding |
| Hardness | >2H |
| Flexibility | Conductor width 1mm2 kgf × 180 ° bend △ R <2Ω × 1 minute × 10 times |
Model two of silver :
| Name | silver conductive paint |
| Model | YS-AG-LI-301 |
| Solid content | 45±2% |
| Dilution condition | 01:00.0 |
| Drying condition | 150℃X30 min |
| Resistance after drying | <0.2Ω (5cmx12cmx10um) |
| Area resistance | ≤0.02Ω/□/12.5μm |
| Volume resistance | ≤3.0×10-5Ω.cm |
| Adhesion | ≥4B |
| Pencil hardness | ≥1H |
| Shielding | ≥75dB |
| Name | Silver/Copper conductive paste |
| Model | YS-AG/CU-LI-305 |
| Specific gravity | 1.15±0.05(ASTM D1475-98) |
| Viscosity | Thixotropic mixture |
| Solid content | 45±1% |
| Theoretical coverage | 8-12m2/kg（paint film thickness=20μm） |
| Conductive effect | ≤0.5Ω/cm² (The paint film thickness is not less than 20 μm) |
| Conductive parameter | 1Ω/ film thickness ：20μm / distance：10cm |
| Suggested film thickness | 20-25μm (ASTM D4138-94) |
| Shielding | 65–85db |
Related articles：
The change in the properties of the silver paste from the silver paste tank to the final printing on the substrate is quite complicated, and its essence is the effect of force on the paste. Different from the force response to solid materials, because silver paste is a high-viscosity multi-phase suspension and dispersion system composed of binder, conductive filler, solvent and additives, it exhibits a more complex flow under shear force. The nature of changes in laws and structural shapes is obviously time-dependent. It is necessary to analyze its rheological properties with the basic concepts of rheology and establish a correct test method for the corresponding rheological properties.
Silver paste has viscoelastic properties, which flow and deform under force. Classical mechanics believes that flow and deformation are concepts in two categories. Flow is the attribute of liquid, while deformation is the attribute of solid. The liquid exhibits viscous behavior when it flows. What happens is deformation, the deformation is irreversible and the deformation process is accompanied by energy loss: when a solid material undergoes elastic deformation, the elastic strain generated can be restored after the external force is removed, and it is accompanied by energy Store and restore energy when deformation is restored. The material properties studied in rheology are between liquid and solid, and both have a certain elasticity and a certain viscosity, which is the so-called viscoelasticity. It can also be said that rheology is a science that studies the deformation and flow of objects under the action of external forces.
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