High Tg PCB
- A High Tg PCB is a PCB assembling with a glass transition temperature higher than 170℃.
- The standard Tg values for regular PCBs are between 120℃ and 170℃.
- High Tg PCBs do better at higher temperatures with more stability.
What Is a High
Tg is the glass transition temperature of a high PCB. A PCB base material temperature changes from an inelastic condition to a more elastic and soft state. Hence, a High Tg PCB is a PCB assembling with a glass transition temperature higher than 170℃. The standard Tg values for regular PCBs are between 120℃ and 170℃.
High Tg PCBs do better at higher temperatures with more stability. And its substrate provides better mechanical & chemical stability and stronger heat resistance to its board.
The regular PCB materials for high temperature are Shengyi S1000-2, ISOLA 370HR, ITEQ-IT-180A, etc.
What Are the Features of
High TG PCB?
When Do You Require A High-Temperature
You may need a high-temperature circuit board for your devices if your PCB experiences a thermal load lower than 25oC below the Tg.
If your product operates in the range of 130 degrees Celsius or even higher, you may need to use a high Tg PCB to be on the safer side.
Majorly, most people use high-temperature circuit boards because of the transfer to RoHS PCBs. And this causes most PCB producers to settle for high TG materials because of the higher temperatures required for lead-free solder to move.
What Are the Necessary Materials for
High TG PCB?
|Material||CTE-z (ppm/℃)||Td (Wt, ℃)||Tg (DSC, ℃)||Td288 (min)||Td260 (min)|
What Are Ways to Employ Heat Dissipation
in High Tg PCBs?
If you’re looking to guard your PCBs against the high temperatures of your appliances’ process, then high Tg PCBs are necessary.
Hence, there are three important ways to dissipate heat produced by electronics with High Tg PCBs.
They are as follows:
The Advantages of Using High TG PCB
High-Temperature PCB Applications
Here are a few examples of high-temperature PCB application:WiFi Booster
Embedded Systems Development
Ac Power Supplies
Embedded Computer Systems
Contract Manufacturing Services
What Are the Capabilities of
High Tg FeaturesCapabilities
Build Time:2 days - 5 weeks
Number of Layers:2 – 40 layers
Order Quantity:1pc - 10000+pcs
Quality Grade:Standard IPC 2
Copper Weight (Finished):0.5oz - 2.0oz
Board Size:Min 6mm x 6mm | Max 500mm x 900mm
Material:S1141 (FR4), S1000-2M (FR4), IT180, Rogers 4350B
Board Thickness:0.4mm - 6.5mm
Solder Mask Sides:As per the file
Solder Mask Color:Green, White, Blue, Black, Red, Yellow
Silkscreen Color:White, Black, Yellow
Other Techniques:Gold fingers Countersink Holes Blind/Buried Vias
Min Drilling Hole Diameter:6mil
Min Annular Ring:4mil
Surface Finish:Lead-Free HASL – RoHS Immersion Silver - RoHS HASL - Hot Air Solder Leveling Immersion Tin - RoHS OSP - Organic Solderability Preservatives - RoHS ENIG - Electroless Nickel/Immersion Gold – RoHS
High TG PCB Technical Options
Why Choose High-Tg PCBs from WELLPCB?
If it’s difficult for you to determine your needs regarding the high Tg PCB, we can help you—at WellPCB. And if you’ll be needing high Tg PCBs, we would help you to choose the particular high Tg PCBs necessary for your firm.
Also, if you’re moving to RoHS or need to get more information on HighTg laminates, we’d be happy to help you.
Feel free to get in touch with us today and get a free online quote.
Here are the certificates we have:
IATF 16949:2016 ISO 9001:2015 ISO14001:2015 ISO13485:2016 UL Also, all our products follow the IPC & ROHS Standards. More importantly, we always strive to manufacture high-end PCB products.