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Company news

High temperature sintered silver paste mainly developed for GPS ceramic antenna substrates

Time:2022-04-19Number:1413

A high-performance approach Sintered lead-free conductive silver pasteThe product is mainly developed for GPS ceramic antenna substrates.

Typical applications

High-temperature sintered silver pasteThe product is mainly developed for GPS ceramic antenna substrates.

General characteristics

Has good printability, conductivity, weldability, and cost-effectiveness

The sintered surface is smooth and glossy

Strong adhesion and welding resistance

Easy to tune

Compliant with RoHS requirements

Performance Description

colour silver gray

Solid Content

75% -85% (plus or minus 2% tolerance, calculated by weight)

Viscosity

35~60Pa.s(25±1℃)

Fineness of slurry

≤7μm

sheet resistivity

<3mΩ/□

hardness

≥5H

Instructions and guidance for use            

Substrate: GPS ceramic antenna

Mixing: thoroughly mix before use.

Dilution: This product can be used after stirring evenly. It is recommended not to add diluent. If dilution is required, a specialized diluent should be used for dilution, and it is recommended to dilute it with less thansilver pasteDilute by 3% of the weight ratio and stir evenly again after dilution. If the diluent added exceeds the above standards, the product quality and performance are not guaranteed.

Printing: This product is suitable for printing various GPS ceramics. The film thickness and resistance after curing are affected by many related factors, such as the size of the screen, tension, scraping hardness, angle and speed, photosensitive adhesive thickness, etc.

Recommended process

Applicable wire mesh: stainless steel or nylon wire mesh, 180-350 mesh
Drying conditions: ventilated baking, drying oven, 120-150 ℃, 10-20 minutes
Sintering conditions: 750~850 ℃, 10-20 minutes, atmospheric atmosphere conditions, ordinary sintering furnace (resistance furnace, muffle furnace), tunnel furnace, etc
Validity period: 12 months from the date of manufacture (please store at a temperature of 5-10 ℃)

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