Taiwan Darui Has Lead Tin Ball Maintenance and Use

Product Description

Yoshida Welding uses the newly developed precision ball making technology to produce high precision spherical solder, and at the same time, it adds a small amount of additives to improve the heat resistance, fatigue and jointing performance. It is suitable for semiconductor BGA, MCM, CSP, Flip Chip and other advanced IC packages and microelectronic harnesses, optoelectronic devices and micro welding applications. From the smelting and manufacturing of metal alloy with special technology to customized research and development to meet the diversified needs of customers, precision ball making technology can produce high-quality solder balls with a diameter of 0.05mm-0.76mm.
Product features:
Stable solder ball size and composition ensure high yield during remanufacturing.
High precision screening and grading technology improves size uniformity.
The precision ball making technology makes the tin ball have high roundness and surface uniformity.
Impact resistant and highly reliable solder ball
1. Applicable
It is suitable for semiconductor BGA, CSP chip package repair, microelectronic wiring harness, optoelectronic devices and other connections.
2. Product characteristics
Project quality specification
1 Appearance silver, bright spherical solid
2. Typical composition: soft solder alloy
Type Alloy melting point
 
 

Solder ball product catalog
Component	diameter	Melting point
Sn5Pb95	0.2-0.889mm	275-302ºC
Sn10Pb90	0.2-0.889mm	275-302ºC
Sn10Pb88Ag2	0.2-0.889mm	270-290ºC
Sn95.5Ag4Cu0.5	0.2-0.889mm	205-217ºC
Sn96.5Ag3Cu0.5	0.2-0.889mm	217ºC
Sn99Ag0.3Cu0.7	0.2-0.889mm	217-227ºC
Sn99.3Cu0.7	0.2-0.889mm	217-227ºC
Sn96.5Ag3.5	0.2-0.889mm	207-227ºC
Sn42Bi58	0.2-0.889mm	138ºC
Sn20Au80	0.2-0.889mm	280ºC
Sn42Bi57.6Ag0.4	0.2-0.889mm	138ºC
Sn48In52	0.2-0.889mm	118ºC

 
4. Quality
4-1 Appearance
Visual judgment. Silver metal sphere.
4-2 Material composition and impure substances
Inductively coupled plasma atomic emission spectrometer was used to analyze the element content. The content of tin, silver and copper was controlled within ± 0.5, ± 0.2 and ± 0.2 of the standard content respectively. Lead content of harmful elements shall be controlled within 500ppm, and cadmium, mercury and hexavalent chromium shall be controlled below 2ppm.
4-3 Oxygen content
The oxygen content is controlled within 0.01% by using a precision oxidation analyzer
4-4 Diameters and Tolerances
The image measuring system is used for testing, and the tolerance is controlled within 0.008mm - 0.020mm
4-5 Warranty period: sealed for 18 months (stored at 10-20 ºC in a cool and dry place).
5. Product specification table (Sn96.5Ag3.0Cu0.5)
Diameter (mm) Tolerance (mm) Roundness (mm) Quantity per bottle (capsules)
0.889    ±0.020    <0.020    125000
0.760    ±0.020    <0.020    250000
0.650    ±0.020    <0.019    250000
0.600    ±0.020    <0.018    250000
0.550    ±0.020    <0.017    250000
0.500    ±0.015    <0.015    250000
0.450    ±0.015    <0.014    250000
0.400    ±0.015    <0.013    500000
0.350    ±0.010    <0.011    500000
0.300    ±0.010    <0.010    500000
0.250    ±0.008    <0.009    1000000
0.200    ±0.008    <0.009    1000000
0.150    ±0.007    <0.008    1000000
0.100    ±0.007    <0.008    1000000
0.050    ±0.006    <0.007    1000000
6. Packaging and marking
1) The packaging unit is bottle, and each bottle is divided into 250000 capsules, 500000 capsules and 1 million capsules
Packaging, bottles made of anti-static polyethylene
2) The above containers shall be transported in cartons at the time of delivery.
3) The label must indicate "product name", "diameter", "quantity"
(4) Save as
Store in a cool and dry place at 20-25 ºC and keep away from heat sources.

Dongguan Jitian Welding Materials Co., Ltd. was established in 2003.  Company has 20 years of experience in the production and R&D of electronic welding materials, such as solder paste, solder paste, red glue, tin wire, tin bar, solder strip, solder ball, and solder stripInternal display
FAQ
Q1: Are you Manufacturer or Trading company?
A: We are a manufacturer with 20 years experience in the production of welding wire, welding bar and solder paste.

Q2: How Do We Place An Order?
A:Please send Email or WeChat with us Via TM, MSN, Skype, and let us know your requirements on type, quantities.We will reply you with Proforma Invoice based on your order request. Kindly check the PI and If everything is OK,We will deliver  the goods  for you ASAP. After got your payment .

Q3. Do you accept  OEM orders?
A:Yes, of course. But we have quantity requirement, pls feel free to contact our salesman for details.

Q4: What is your advantage?
A: Manufacturers for better prices, good quality and reputation, professional sales services.

Q5: Can you offer the free sample for testing?
A: Yes,we can offer free sample for testing, but the freight cost should be paid by customer side. 

Q6. How to store and How long is the warranty period?
A:Stored in a cool, dry, non-corrosive environment. Product warranty period of 1 year. 

Q7. What is your terms of payment?
A: T/T 25% as deposit, and 75% before delivery. We'll show you the photos of the products and packages.

Q8. What about the delivery time?
A:Usually 1-2 days for samples and 3-5 days for bulk orders. 

Q9. Can we visit your company/factory before place the order?
A. Yes. Welcome anytime.