.

LEAD FREE HASL PCB / IMMERSION TIN PCB

LEAD FREE HASL PCB / immersion tin pcb

Lead-free HASL is to coat a layer of tin-lead alloy on the copper surface to prevent the oxidation of the copper surface and provide a good welding base for the subsequent assembly process. What is hot air leveling? It is actually a process of combining dip soldering and hot air leveling, and coating eutectic solder in the metalized holes of lead-free printed circuit boards and printed wires. The process is to first dip the lead-free printed circuit board with flux, then dip the molten solder, and finally pass between the two air knives. Use the hot compressed air in the air knife to remove the excess on the printed board The solder is blown off, and at the same time, the excess solder in the metal holes is eliminated, thereby obtaining a bright, smooth, and uniform solder coating.

Features of lead free hasl pcb

The immersion tin process can form a flat copper-tin intermetallic compound. This feature makes the immersion tin have the same good solderability as hot air leveling without the troublesome flatness problems of hot air leveling; nor does it have electroless nickel plating / Diffusion issues between gold and metal; just the tin immersion board cannot be stored for too long.

Immersion tin does not bring any new elements into the solder joint, which is especially suitable for communication backplanes. The use of the immersion tin board is restricted due to the inconvenience of storage and the carcinogens contained in the process. About 5% -10% of PCBs currently use a dip tin process.

Parameters of Lead Free HASL PCB

SPEEDAPCB has a mature HASL production line, as well as particularly experienced engineers, we will do our best to provide you with the perfect plate making service.

Board name

USB transfer board

Layers of number

4

Thickness of board

Surface treatment

HASL

Min Line width /line spacing

6/6mil

Board name

Power signal acquisition board

Layers of number

6

Thickness of board

Surface treatment

HASL

Min Line width /line spacing

5/5mil

Board name

High power board

Layers of number

2

Thickness of board

Surface treatment

HASL

Min Line width /line spacing

15/15mil

Board name

Data storage board

Layers of number

6

Thickness of board

Surface treatment

HASL

Min Line width /line spacing

4/4 mil

Board name

Signal sampling backplane

Layers of number

6

Thickness of board

Surface treatment

HASL

Min Line width /line spacing

4/4 mil

Board name

Layers of number

6

Thickness of board

Surface treatment

HASL

Min Line width /line spacing

5/5 mil

Board name

HD image processor board

Layers of number

12

Thickness of board

Surface treatment

Gold finger + Tin Spray + Hot Air Leveling

4/4

5/5 mil

Characteristics of Lead Free HASL PCB

The most prominent advantage of solder coating with hot air leveling is that the coating composition always remains the same, and the edges of the printed circuit can be completely protected.

The cost of hot air leveling is lower than other surface treatments, the process is mature, and the weldability is good.

As a pcb design ltd, SPEEDA Technology, founded in 2014andlocated in Changsha City, Hunan Province, supports our customers with PCB service and design. We are committed to providing our customers with high-quality, high-layer board manufacturing services.



在线联系供应商

至: Hunan Speeda Technology Co.,Ltd.
Your E-mail:
消息正文:


Send to other suppliers

Other supplier products

ALUMINUM PCB / METAL CORE PCB
ALUMINUM PCB / METAL CORE PCB Speedapcb - The PCB design companyin China, established in 2014, is located in Changsha, Hunan Province. The company focuses on high-speed PCB desi...
THE MOST BASIC CIRCUIT BOARD——SINGLE SIDED PCB
THE MOST BASIC CIRCUIT BOARD——SINGLE SIDED PCB Speedapcb - The best PCB manufacturersin China, established in 2014, is located in Changsha, Hunan Province. The company focuses on high-speed PCB ...
PLATED THROUGH HOLE PCB / PTH PCB
PLATED THROUGH HOLE PCB / PTH PCB PCB Via Hole/ PTH PCB There are three common types of drilled holes in the printed circuit board:pcb via plating, blind via hole, and buried via ...
Large & Small PCB
Large & Small PCB Nowadays, the reduction of the size of the simple printed circuit boardwill reach half or the quarter of the original size. The extremely thin wire...
4 Layer PCB
4 Layer PCB In general, in a 4 layer pcb layout, both the top and bottom layers belong to the signal layer, while another two inner layers are GND and VCC. If ...
供应产品

Same products

Precious Metal Melting
Precious Metal Melting 卖方: Chengdu Jinkezhi Electronic Co., Ltd JKZcan provide you a complete induction heating machine chinaexperience service. Our service staf...
ABB inverter
ABB inverter 卖方: 公司介绍 ABB inverter is a famous brand which researched & produced from ABB group. That used in contr...
Protocol Conversion Module
Protocol Conversion Module 卖方: 广州金升阳科技有限公司 MORNSUN protocol conversion module converts UART/SPI signal into CAN bus differential level to re...
Class-D Power Amplifier
Class-D Power Amplifier 卖方: Guangzhou DSPPA Audio Co., Ltd. Digital pa amplifierproduction line covers 4 series: One Channel Digital Amplifier, Two Channel ...
Desktop Microphone
Desktop Microphone 卖方: Guangzhou DSPPA Audio Co., Ltd. Desktop pa microphoneare designed for both PA system and conference System. They are designed wi...