Bare FR-4 Tg170 as spacer from Shengyi 1.5mm thick 288±5ºC thermal shock test in Modem
Usb Gsm
Commodity Introduction
This is a type of FR-4 PCB for the application of Modem Usb Gsm. It's a bare board at 1.5mm
thick.The base laminate is from ShengYi,It's fabricated per IPC 6012 Class 2 using supplied
Gerber data. Each 10 boards or panels are packed separately.
Parameters & Data Sheet
| Item |
Description |
Requirement |
Actual |
| Laminate |
Laminate Type |
FR4:CTI:175V-249V |
FR4:CTI:175V-249V |
| Supplier |
SHENGYI |
SHENGYI |
| Tg |
TG 170 |
TG 17 |
| Finished thickness |
1.6+/-0.16% MM |
1.5 MM |
| Plating Thickness |
PTH Cu thickness |
|
|
| Inner layer Cu Thickness |
/ |
/ |
| Surface Cu thickness |
/ |
/ |
| Solder Mask |
Material type |
/ |
/ |
| Supplier |
/ |
/ |
| Color |
/ |
/ |
| Single / both sides |
/ |
/ |
| S/M thickness |
/ |
/ |
| 3M tape test |
/ |
/ |
| Legend |
Material type |
/ |
/ |
| Supplier |
/ |
/ |
| Color |
/ |
/ |
| Location |
/ |
/ |
| 3M tape test |
/ |
/ |
| Circuit |
Trace Width (mm) |
/ |
/ |
| Spacing (mm) |
/ |
/ |
| Identification |
UL mark |
/ |
/ |
| Company Logo |
/ |
/ |
| Date code |
/ |
/ |
| Mark location |
/ |
/ |
| Surface Treatment |
ENIG |
Nickel |
/ |
/ |
| Gold |
/ |
/ |
| Gold finger |
GF Nickel |
/ |
/ |
| GF Gold |
/ |
/ |
| Immersion silver |
/ |
/ |
| immersion tin |
/ |
/ |
| HASL |
/ |
/ |
| Lead- free HASL |
/ |
/ |
| OSP |
/ |
/ |
| Reliabilty Tests |
Thermal shock test |
288±5ºC,10sec,
3 cycles |
NO Discolor,
NO Delamination |
| solder abllity test |
/ |
/ |
| Function |
Electrioal Test |
100% |
pass |
| Standard |
IPC-A 600H class 2,
IPC_6012C CLASS 2 |
100% |
Pass |
| Appearance |
Visual inspection |
100% |
Pass |
| warp and twist |
<= 0.75% |
0.21% |
| Others |
V-Cut thickness |
0.4±0.1 mm |
0.39mm |
| Angle |
30+/- 5 |
30º |
Finished dimension (unit: mm): including v-cut
| No |
Required |
Actual Dimension |
| 1 |
199.070 |
199.110 |
199.200 |
199.140 |
199.110 |
199.140 |
| 2 |
180.340 |
180.380 |
180.470 |
180.400 |
180.380 |
180.400 |
Hole size and slot dimension(unit: mm, PTH tolerance +/-0.076, NPTH +/-0.05mm)
| No |
Required |
PTH/NPTH |
Actual Dimension |
| 1 |
0.610 |
Y |
0.650 |
0.575 |
0.625 |
0.675 |
| 2 |
0.900 |
Y |
0.925 |
0.850 |
0.850 |
0.975 |
| 3 |
1.020 |
Y |
0.950 |
1.000 |
0.950 |
1.025 |
| 4 |
1.100 |
Y |
1.100 |
1.050 |
1.050 |
1.150 |
| 5 |
2.110 |
Y |
2.075 |
2.100 |
2.150 |
2.075 |
| 6 |
2.500 |
Y |
2.425 |
2.525 |
2.575 |
2.550 |
| 7 |
3.000 |
Y |
2.950 |
3.025 |
3.075 |
3.025 |
| 8 |
3.500 |
N |
3.550 |
3.550 |
3.550 |
3.450 |
Learn PCB and Buy PCB
Laminates --- FR-4 brief
FR-4 (or FR4) is a kind of material grade designation, which means that the resin material is flame
resistant (self-extinguishing). FR-4 is a kind of material specifications, not a material name, but a
material grade. "FR" stands for flame retardant, and denotes that safety of flammability of FR-4
is in compliance with the standard UL94V-0.
FR-4 glass epoxy is a popular and versatile high-pressure thermoset plastic laminate with good
strength to weight ratios. With near zero water absorption, FR-4 is most commonly used as an
electrical insulator possessing considerable mechanical strength. The material is also known to
retain its high mechanical values and electrical insulating qualities in both dry and humid
conditions. These attributes, along with good fabrication characteristics, lend utility to this grade
for a wide variety of electrical and mechanical applications.
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