VT-447V CCL/Laminate VT-447V PP/Prepreg

UL Approval: E214381 Version: Rev. B4 06/06/2019 /127/128/130

Storage Condition & Shelf Life

Shelf life

Prepreg Laminate
Storage Condition Temperature < 23℃ (73℉) < 5℃ (41℉) Room
Relative Humidity < 55% / /
Shelf Life 3 Months 6 Months 24 Months

Prepreg exceeding shelf life should be retested.

Precautions In Handling

  • The prepreg exceeding shelf time should be retested.
  • Take care in handling thin core laminates as they are easily damaged.
  • If the prepreg is not consumed within 48hrs after opening the vacuum package, it is recommended that the bags be resealed.
  • Material is available in both long and short grain. The grain direction is indicated on the label with an arrow.

 

Designing And Inner Layer Process

  • Please be careful when single ply of 1080, 1086, 1078 or 106 prepreg is designed to the dielectric layer.
  • Dimension stability is the same as Standard FR4 material.
  • Please check with your oxide vendor to make sure that our material is suitable with your oxide process. We recommend to control the peel strength with brown oxide copper over 2 Lb/in.
  • For unclad or single sided laminates to be used in multilayer, please brush unclad sides before use.

 

Prepreg Availability

E-Glass styles: 7628, 1506, 1500, 2113, 2313, 3313, 2116, 1080, 1086, 1078, 106, 1067 etc.

Prepreg Availability

PP Type Resin Content Press Thickness (mil) DK DF Remark
@ 1GHz @ 2GHz @ 5GHz @ 10GHz @ 1GHz @ 2GHz @ 5GHz @ 10GHz
7628 45% 7.60 4.34 4.29 4.24 4.24 0.012 0.013 0.013 0.014 Standard
1506 52% 7.00 4.13 4.08 4.03 4.03 0.013 0.014 0.014 0.015 Standard
2116 58% 5.30 3.96 3.91 3.86 3.86 0.014 0.015 0.015 0.016 Standard
2116 54% 4.80 4.07 4.02 3.97 3.97 0.014 0.015 0.015 0.016 Standard
2116 52% 4.60 4.13 4.08 4.03 4.03 0.013 0.014 0.014 0.015 Standard
2113 57% 3.90 3.99 3.94 3.89 3.89 0.014 0.015 0.015 0.016 Standard
1080 68% 3.30 3.80 3.70 3.65 3.65 0.015 0.016 0.016 0.017 Standard
1080 66% 3.10 3.85 3.75 3.70 3.70 0.015 0.016 0.016 0.017 Standard
1078 68% 3.30 3.80 3.70 3.65 3.65 0.015 0.016 0.016 0.017 Standard
106 76% 2.30 3.62 3.52 3.47 3.47 0.016 0.017 0.017 0.018 Standard

① Press thickness test condition---Prepreg lamination size 18”*24”, Copper Foil---1oz/1oz, Flow---about 5%; ② Make laminated prepreg to micro-section and measure the thickness with microscope; this thickness is used for resistance design calculation. ③ The thickness measured with micrometer is 0.2~0.4 mil larger than that measured with micro-section; and mainly used for total thickness design calculation.

Laminate Availablity

Thickness: 0.002” (0.05mm) to 0.200” (5mm), available in sheet or panel form Copper Foil: 1/4 to 12oz, HTE or RTF or DST Note: For cores ≤0.005”, it is recommended to use the reverse treated copper due to the low profile. The peel strength for RT foil is 1-2lb/in (0.35Kg/m) less than Standard foil.

Laminate Availability

Core thk. (Inches) Stack-up Resin Content DK DF Remark
@ 1GHz @ 2GHz @ 5GHz @ 10GHz @ 1GHz @ 2GHz @ 5GHz @ 10GHz
0.002 1-106 72% 3.70 3.60 3.55 3.55 0.016 0.017 0.017 0.018 Standard
0.003 1-1080 66% 3.85 3.75 3.70 3.70 0.015 0.016 0.016 0.017 Standard
0.004 1-2116 46% 4.31 4.26 4.21 4.21 0.013 0.014 0.014 0.015 Standard
0.004 2-106 72% 3.70 3.60 3.55 3.55 0.016 0.017 0.017 0.018 2ply
0.005 1-2116 55% 4.04 3.99 3.94 3.94 0.014 0.015 0.015 0.016 Standard
0.006 1-1506 45% 4.34 4.29 4.24 4.24 0.012 0.013 0.013 0.014 Standard
0.007 1-7628 41% 4.47 4.42 4.37 4.37 0.012 0.013 0.013 0.014 Standard
0.008 1-7628 46% 4.31 4.26 4.21 4.21 0.013 0.014 0.014 0.015 Standard
0.008 2-2116 46% 4.31 4.26 4.21 4.21 0.013 0.014 0.014 0.015 2ply
0.010 2-2116 55% 4.04 3.99 3.94 3.94 0.014 0.015 0.015 0.016 Standard
0.012 2-1506 45% 4.34 4.29 4.24 4.24 0.012 0.013 0.013 0.014 Standard
0.014 2-7628 41% 4.47 4.42 4.37 4.37 0.012 0.013 0.013 0.014 Standard
0.016 2-7628 46% 4.31 4.26 4.21 4.21 0.013 0.014 0.014 0.015 Standard
0.028 4-7628 41% 4.47 4.42 4.37 4.37 0.012 0.013 0.013 0.014 Standard
0.036 5-7628 43% 4.41 4.36 4.31 4.31 0.012 0.013 0.013 0.014 Standard
0.045 6-7628 46% 4.31 4.26 4.21 4.21 0.013 0.014 0.014 0.015 Standard
0.049 7-7628 41% 4.47 4.42 4.37 4.37 0.012 0.013 0.013 0.014 Standard
0.059 8-7628 44% 4.38 4.33 4.28 4.28 0.012 0.013 0.013 0.014 Standard

Press Condition

 

 

1. Heating rate(Rise of Rate) of material [Material Temperature]
Programmable Press: 1.5-3.0℃/min (3~5℉/min).  Manual Press:3~6℃ /min (5~10℉/min)

2. Curing Temperature & Time: >60min at more than 185℃ (365℉)[Material Temperature], maximum temperature should exceed 195℃ (383℉)

3. Full Pressure: ≥350psi (25Kg/cm2) should be applied in 15~20 minutes after press starts

4. Vacuuming should be continued until over 140℃ (284℉) [Material Temperature]  

5. Cold Press condition: Keep Plate @ Room Temperature by water, Pressure:100psi, Keep Time:60minutes

190606VT-447V Graphic 1.jpg 190606 VT-447V - Graphic 2.jpg 190606 VT-447V - Graphic 3.jpg

Typical Drilling Parameters (φ0.3-1.0 mm)

Desmearing Process

1. Desmear rate of VT-447 is less than that of the conventional FR4; 2. Adjustments to the desmear process are necessary for the lead-free materials; 3. Check with your chemical supplier for recommendations.

Downloads for VT-447V