Technological Process

In view of the fact that customers must meet the relevant requirements of the European Union's RoHS Directive, Jiafengsheng Electronics Co., Ltd. has established a complete management procedure for toxic and harmful substances to jointly build a good green supply chain with its partners. The products currently produced meet the requirements of the RoHS Directive.


At the same time, in order to ensure the normal use of customers in the transition period when lead-free flux is used to replace traditional lead containing flux, the lead-free change of the diode end point of Jiafengsheng Electronics Co., Ltd. will ensure that the lead-free products and the customers' existing lead containing products have no decline in the applicable performance. Jiafengsheng's lead-free products have sufficient welding adhesion whether for lead or lead-free soldering.


Maximum Allowable Value Of RoHS Standard Restricted Substances


Mercury (Hg)

0.1% weight

1000 ppm

cadmium (Cd)

0.01% weight

100 ppm

lead (Pb)

0.1% weight

1000 ppm

Hexavalent chromium (Cr +6 )

0.1% weight

1000 ppm

Polybrominated biphenyls (PBB)

0.1% weight

1000 ppm

Polybrominated diphenyl ether (PBDE)

0.1% weight

1000 ppm


Exemption From RoHS

Lead is allowed to exist in copper as an alloy doping element, and the weight shall not exceed 4%; In steel, the weight shall not exceed 0.35%; In aluminum, the weight shall not exceed 0.4%.

Lead is allowed in the glass of electronic components.

Lead is allowed to exist in electronic ceramic parts (piezoelectric ceramics).

Lead is allowed to be used in high melting temperature welding (for example, tin lead welding alloy contains more than 85% lead).


Technological Process

1、 Bonding workshop - the first process of production
The first process of production is always complex, so employees are required to work more strictly, and errors in any link should be controlled within 1. Bonding workshop includes many machines, such as bonding machine and wire bonding machine, which are divided into different models due to different packaging models.
2、 Packaging workshop - plastic packaging to complete the external packaging of products
High quality plastic packaging materials and high temperature technology are used to wrap the exposed metal to complete the shaping of the product.
3、 Test workshop - key to quality inspection
Detect the finished products, screen out the products with good quality through the machine and equipment, and pack them into plates by the machine.
4、 Quality inspection - final quality control
Although the manual inspection is not as accurate as the machine, it can find defects that cannot be found by the machine to further ensure the quality, so as to achieve the quality assurance required by the company.


In view of the fact that customers must meet the relevant requirements of the European Union's RoHS Directive, Jiafengsheng Electronics Co., Ltd. has established a complete management procedure for toxic and harmful substances to jointly build a good green supply chain with its partners. The products currently produced meet the requirements of the RoHS Directive.


At the same time, in order to ensure the normal use of customers in the transition period when lead-free flux is used to replace traditional lead containing flux, the lead-free change of the diode end point of Jiafengsheng Electronics Co., Ltd. will ensure that the lead-free products and the customers' existing lead containing products have no decline in the applicable performance. Jiafengsheng's lead-free products have sufficient welding adhesion whether for lead or lead-free soldering.


Maximum Allowable Value Of RoHS Standard Restricted Substances


Mercury (Hg)

0.1% weight

1000 ppm

cadmium (Cd)

0.01% weight

100 ppm

lead (Pb)

0.1% weight

1000 ppm

Hexavalent chromium (Cr +6 )

0.1% weight

1000 ppm

Polybrominated biphenyls (PBB)

0.1% weight

1000 ppm

Polybrominated diphenyl ether (PBDE)

0.1% weight

1000 ppm


Exemption From RoHS

Lead is allowed to exist in copper as an alloy doping element, and the weight shall not exceed 4%; In steel, the weight shall not exceed 0.35%; In aluminum, the weight shall not exceed 0.4%.

Lead is allowed in the glass of electronic components.

Lead is allowed to exist in electronic ceramic parts (piezoelectric ceramics).

Lead is allowed to be used in high melting temperature welding (for example, tin lead welding alloy contains more than 85% lead).


Technological Process

1、 Bonding workshop - the first process of production
The first process of production is always complex, so employees are required to work more strictly, and errors in any link should be controlled within 1. Bonding workshop includes many machines, such as bonding machine and wire bonding machine, which are divided into different models due to different packaging models.
2、 Packaging workshop - plastic packaging to complete the external packaging of products
High quality plastic packaging materials and high temperature technology are used to wrap the exposed metal to complete the shaping of the product.
3、 Test workshop - key to quality inspection
Detect the finished products, screen out the products with good quality through the machine and equipment, and pack them into plates by the machine.
4、 Quality inspection - final quality control
Although the manual inspection is not as accurate as the machine, it can find defects that cannot be found by the machine to further ensure the quality, so as to achieve the quality assurance required by the company.



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