TG180, TG170 communication PCB manufacturing
Name: High Tg cell phone manufacturing electronic pcb
Type: communication pcba
Copper Thickness: 2 oz
Product name: PCBA board assembly
Laminate: FR-4, halogen free, high TG, etc.
Surface treatment: OSP, HASL, Immersion Gold, Immersion Tin, etc.
Plate thickness: 0.3-3.5mm
Solder mask: green, black, blue, red, white, etc.
Blind and buried vias: yes
Independent control tolerance: ±10%
WHAT IS PCB TG
When the temperature gets high enough, the PCB substrate that consists of glass fiber turns soft. The critical temperature at which the PCB substrate turns from the solid-state to the liquid state is the PCB TG (glass transition temperature). In other words, PCB TG is the highest temperature at which the PCB FR4 substrate keeps rigid.
According to the different TG values, we classify FR4 PCBs into normal TG PCBs, medium TG PCBs, and high TG PCBs: (DSC)
PCB TG Types | TG Values (DSC) | Applications |
Normal TG PCBs | 130℃, 135℃, 140℃ | Computer, communication equipment, instrumentation, game player, TV, VCR, LCD, etc. |
Medium TG PCBs | 150℃, 155℃ | Computer, communication equipment, automotive, consumer electronics, electronic game machine, heavy copper applications, etc. |
High TG PCBs | 170℃, 180℃, 185℃ | Automotive, medical, aerospace & defense, industrial control, routers, servers, workstations, precision instruments, power supply, CPU, consumer electronics, etc. |
The higher TG of the PCB laminates, the higher the temperature range that the FR4 PCB can properly work in. When the PCB temperature goes beyond the glass transition point, the PCB turns soft and deforms. In this case, the PCB mechanical and electrical performances worsen, and the circuit board becomes unreliable.
TG 180 PCB VS TG 150 PCB VS TG 140 PCB
The PCB HERO editor chooses Ventec's three laminates to make a comparison between TG 180 PCB, TG 150 PCB, and TG 140 PCB.
The high TG FR4 laminate VT-47: TG 180℃, 5% weight loss Td 355℃, total expansion Z-axis CTE 2.3%
The medium TG FR4 laminate VT-42S: TG 150℃, 5% weight loss Td 315℃, total expansion Z-axis CTE 3.75%
The normal TG FR4 laminate VT-42: TG 140℃, 5% weight loss Td 310℃, total expansion Z-axis CTE 3.75%
Name: High Tg cell phone manufacturing electronic pcb
Type: communication pcba
Copper Thickness: 2 oz
Product name: PCBA board assembly
Laminate: FR-4, halogen free, high TG, etc.
Surface treatment: OSP, HASL, Immersion Gold, Immersion Tin, etc.
Plate thickness: 0.3-3.5mm
Solder mask: green, black, blue, red, white, etc.
Blind and buried vias: yes
Independent control tolerance: ±10%
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