Ultra-fine solder paste
T6, T7, T8, T9, and T10 solder powder are called ultra-fine solder powder because of their small particle sizes. Solder paste consisting of T6 to T10 solder powders is called ultra-fine solder paste. With the continuous development of the microelectronics and semiconductor industry, the chip size is getting smaller while the packaging density is getting higher. It's hard to meet the requirements of microelectronics and semiconductor packaging with traditional solder paste products of T4 and above. Currently, the solder paste used in packaging is increasingly being "ultra micronized".
Fitech's tin-bismuth-silver alloy solder powder with excellent sphericity, uniform particle size, and low oxygen content is mixed with excellent zero-halogen flux to prepare FTP-574 series low-temperature solder paste. Solvent volatilizes very slightly during soldering. There is no solder ball formation and only a small amount of residue forms after soldering. Moreover, the product has outstanding wettability, and the solder joints generated are plump and bright. It is effective for low-temperature component mounting.
After Curing:
1. Warming Instruction: Solder paste needs to be refrigerated, and the preferred temperature is 0-10°C. When the solder paste is taken out from the cold box, its temperature is much lower than the room temperature. If the bottle cap is opened without rewarming, the water vapor in the air will easily condense and adhere to the solder paste. The high temperature exceeding 150°C during soldering increases vaporizatipn of water, which may cause the phenomenon of "exploding solder" to produce solder balls and even damage the components.
2. Warming Method: The sealed solder paste should rewarm to room temperature naturally; Rewarm no more than twice.
3. Warming Time: Return to warm for 2 to 3 hours at room temperature. The actual time required to reach thermal equilibrium varies by vessel size.
4. Note: Do not open the bottle cap without sufficient rewarming or shorten the rewarming by using heat equipment.
5. Operating Environment:The best operating temperature and humidity are 20-25°C and 40-50%RH, respectively. Reflow soldering in a nitrogen atmosphere is recommended.
6. Operating Time
① Continuous printing time: When adding solder paste continuously: 8 hours; In case of discontinuous addition of solder paste: 4 hours; ② Please add solder paste before the solder paste on the board is almost one third (rolling diameter: 10mm or less); ③ Please keep the solder paste on the plate within 3 hours; ④ If printing is interrupted for more than 30 minutes, please clean the stencil. ⑤ Dwell time after printing: After the solder paste is printed, the components should be mounted as soon as possible and the soldering should be completed when passing the oven to avoid drying out the surface of the solder paste due to long storage, which will affect the component mounting and soldering effects. Generally, the recommended dwell time of solder paste is no more than 4 hours, while the low temperature bismuth-containing solder paste does not exceed 2 hours. If the printing is interrupted for more than 30 minutes or is temporarily interrupted, the printing template needs to be cleaned. It can continue to work after 1-2 trial printing. The solder paste attached to narrow space of the opening (≤0.4mm) and the opening of the stencil will gradually dry, which will degenerate the adhesive ability.
Fitech’s tin-bismuth-silver solder powder with excellent sphericity, uniform particle size, and low oxygen content is mixed with excellent zero-halogen flux to prepare FTD-574 series low-temperature solder paste. Solvent volatilizes very slightly during soldering. There is no solder ball formation during soldering, and only a small amount of residue is produced after soldering. Moreover, FTD-574 has outstanding wettability. The solder joints generated are plump and bright. The product is effective for low-temperature component mounting.
1. Warming Instruction: Solder paste usually needs to be refrigerated, and the preferred temperature is 0-10°C. When taking out the solder paste from the cold box, its temperature is much lower than the room temperature. If the bottle cap is opened without rewarming, the water vapor in the air will easily condense and adhere to the solder paste. The high temperature exceeding 150°C during soldering increases the vaporization of water, which may cause the phenomenon of "exploding solder" to produce solder balls and even damage the components.
2. Warming Method: The sealed solder paste should rewarm to room temperature naturally; Rewarm no more than twice.
3. Warming Time: Return to warm for 2 to 3 hours at room temperature. The actual time required to reach thermal equilibrium varies by vessel size.
4. Note: Do not open the bottle cap without sufficient rewarming or shorten the rewarming time by using heating equipment.
5. Operating Environment:The best operating temperature and humidity are 20-25°C and 40-50%RH, respectively. Reflow soldering in a nitrogen atmosphere is recommended.
6. Operation Time
① Continuous printing time: When adding solder paste continuously: 8 hours. In case of discontinuous addition of solder paste: 4 hours; ② Please add solder paste before the solder paste on the board is almost one third (rolling diameter: 10mm or less); ③ Please keep the solder paste on the plate within 3 hours; ④ If printing is interrupted for more than 30 minutes, please clean the stencil; ⑤ Dwell time after printing: After the solder paste is printed, the components should be mounted as soon as possible and the soldering should be completed when passing the oven to avoid drying out the surface of the solder paste due to long storage, which will affect the component mounting and soldering effects. Generally, the recommended dwell time of solder paste is no more than 4 hours, while the low temperature bismuth-containing solder paste does not exceed 2 hours. If the printing is interrupted for more than 30 minutes or is temporarily interrupted, the printing template needs to be cleaned. It can continue to work after 1-2 trial printing. The solder paste attached to narrow space of the opening (≤0.4mm) and the opening of the stencil will gradually dry, which will degenerate the adhesive ability.
Fitech produces SAC305 solder powder with excellent sphericity, uniform particle size, and low oxygen content, and it is mixed with halogen-free flux to prepare FTD-305 series solder paste. The solder paste has superior adhesion before soldering. Solvent volatilizes very slightly during soldering. Moreover, FTD-305 has outstanding wettability, anti-slump, and residue reduction properties. There is no solder ball formation during soldering. The product is an ideal solder for micro-bump ultra-fine-pitch packaging.
1. Before Curing:
2. After Curing：
Product DIsplay of FTD-305 (Lead-Free Solder Paste for Dispensing)
Warming Time: Rewarm 2 to 3 hours at room temperature. The actual time required to reach thermal equilibrium varies by vessel size.
Note: Do not open the bottle cap without sufficient rewarming or shorten the rewarming time by using heating equipment.
Operating Environment: The best operating temperature and humidity are 20-25°C and 40-50%RH, respectively. Reflow soldering in a nitrogen atmosphere is recommended.
Fitech produces SAC305 solder powder with excellent sphericity, uniform particle size, and low oxygen content, and it is mixed with halogen-free flux to prepare FTP-305 series solder paste. The solder paste has a superior adhesion effect before soldering. Solvent volatilizes very slightly during soldering. Moreover, FTP-305 has outstanding wettability, anti-slump, and residue reduction properties. There is no solder ball formation during soldering. The product is ideal for micro-bump ultra-fine-pitch packaging.
1. Before Curing:
2. After Curing：
Warming Method: The sealed solder paste should rewarm to room temperature naturally; Rewarm no more than twice.
Warming Time: Rewarm 2 to 3 hours at room temperature. The actual time required to reach thermal equilibrium varies by vessel size.
Note: Do not open the bottle cap without sufficient rewarming or shorten the rewarming time by using heating equipment.
Operating Environment: The best operating temperature and humidity are 20-25°C and 40-50%RH, respectively. Reflow soldering in a nitrogen atmosphere is recommended.
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