OEM Supply China Fr4 Multilayer PCB, BGA, High Tg, Blind Hole

Short Description:

A normal FR4-Tg is 130-140 degrees, the medium Tg is greater than 150-160 degrees, and high Tg is greater than 170 degrees. High-Tg FR4 will have better mechanical and chemical resistance to heat and moisture than standard FR4.

Parameters

Layers: 10L High Tg FR4 Material

Base Material:EM827 High tg 170°

Thickness：1.6mm

Min Holes:0.2mm

Minimum Line Width/Clearance：0.10mm/0.10mm

Minimum Clearance between Inner Layer PTH to Line： 0.2mm

Size：100mm×100mm

Aspect Ratio：8 : 1

Surface treatment：ENIG+Selective Hard Gold Plating

Process characteristics: High tg, Selective hard gold

Applications:Communication

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The basic meaning of high Tg PCB

When the temperature of high Tg printed circuit board rises to a certain threshold, the substrate will change from “glass state” to “rubber state”, and the temperature at this time is called the glass transition temperature (Tg) of the board.In other words, Tg is the highest temperature (℃) at which the substrate remains rigid.That is to say, the common PCB substrate material in the high temperature, continuous softening, deformation, melting and other phenomena, but also in the performance of the mechanical and electrical characteristics of the sharp decline, which affects the service life of the product (I think we do not want to see their own products appear in this case).

The main characteristics of high Tg PCB

Generally, Tg plates are above 130℃, high Tg is generally greater than 170℃, and medium Tg is about greater than 150℃.

PCB printed boards with Tg≥170℃ are usually referred to as high Tg printed boards.

With the improvement of Tg of substrate, the heat resistance, moisture resistance, chemical resistance and stability of PCB will be improved.The higher the TG value, the better the temperature resistance of the plate, especially in lead-free process, high TG is more widely used.

Therefore, the difference between general fr-4 and high Tg is as follows: under high temperature, especially under heat after hygroscopicity, the mechanical strength, dimensional stability, adhesion, water absorption, thermal decomposition, thermal expansion and other conditions of the materials are different, and high Tg products are obviously better than ordinary PCB substrate materials.

YMS High Tg PCB manufacturing capabilities:

YMS High Tg PCB manufacturing capabilities overview
Feature	capabilities
Layer Count	3-60L
Available Multilayer PCB Technology	Through hole with Aspect Ratio 16:1
	buried and blind via
	Hybrid	High Frequency Material such as RO4350B and FR4 TG 180°Mix etc.
		High Speed Material such as M7NE and FR4 TG 180°Mix etc.
Thickness	0.3mm-8mm
Minimum line Width and Space	0.05mm/0.05mm(2mil/2mil)
BGA PITCH	0.35mm
Min mechanical Drilled Size	0.15mm(6mil)
Aspect Ratio for through hole	16:1
Surface Finish	HASL, Lead free HASL,ENIG,Immersion Tin, OSP, Immersion Silver, Gold Finger, Electroplating Hard Gold, Selective OSP，ENEPIG.etc.
Via Fill Option	The via is plated and filled with either conductive or non-conductive epoxy then capped and plated over(VIPPO)
	Copper filled, silver filled
Registration	±4mil
Solder Mask	Green, Red, Yellow, Blue, White, Black, Purple, Matte Black, Matte green.etc.