Novaflex VHD uses a unique material construction of Novaclad®
adhesiveless material, laser generated micro-vias, and ultra fine-line
photoimaging to provide the highest density 1 or 2 layer flexible printed
circuits in high-volume production today. Novaflex VHD is processed
in a state of the art roll-to-roll processing system with 305mm wide webs
in our Longmont, Colorado and Northfield, Minnesota facilities.
This unique material construction also makes Novaflex VHD
extraordinarily reliable because the micro-vias have an equal, continuous
plating thickness; the same as the surface copper.
The design features of Novaflex VHD are:
- Layers
– 1 or 2
- Base Material
– 50 µm
Novaclad adhesiveless material
Line Width/Space – 50 µm/50 µm
Via Exit/Entry Diameter – 25 µm/60 µm
Via Pad Diameter – 140 µm
Soldermask/Dielectric – photoimageable or laminated film
Operating Temperature – -65°C – 150°C
Novaflex VHD is available with a variety of photoimaged soldermasks
and laminated films. Surface finishes include electroplated hard or soft
wire-bondable gold, electroplated solder, and Shelcoat™ OSP.
Applications for Novaflex VHD include disk drives, cellular
phones, medical imaging, hearing aids, displays, printers, pagers.
Novaflex VHD is manufactured under a QS-9000 and ISO 9001 certified
quality system.
NovaFlex™ VHD Reliability Data
|
Test Environment
|
Duration
|
Failures |
Comments
|
|
129 °C
Operating Life Test
|
1,000 Hours
|
0
|
|
|
Biased 85°C/85% RH
|
1,000 Hours
|
0
|
|
|
Thermal Cycle (-40°C-125°C)
|
1,000 Cycles
|
0
|
|
|
Thermal Cycle (-55°C-125°C)
|
1,000 Cycles
|
0
|
Tested to 3,000 cycles with 0 failures
|
|
Thermal Shock (-65°C-150°C)
|
1,000 Cycles
|
0
|
|
|
Storage Life (150°C)
|
1,000 Hours
|
0
|
|
Novaclad® Properties
|
Property
|
Test Method |
Units |
Typical Mean Value |
|
Peel Strength, as received
|
IPC-TM-650,
2.4.9A |
Ibs/in |
7.0 |
|
Peel Strength, after solder float
|
IPC-TM-650,
2.4.9C |
Ibs/in |
6.0 |
|
Peel Strength, after 72 hours @ 210°C
|
Sheldahl
TM-6594G |
Ibs/in |
4.0 |
|
Initiation Tear Strength
|
IPC-TM-650,
2.4.16 |
Ibs/in |
4.6 (MD)/4.1(TD) |
|
Propagation Tear Strength (50 mm
film)
|
IPC-TM-650,
2.4.17 |
grams |
12.0 |
|
Low Temperature Flexibility
|
IPC-TM-650,
2.4.18 |
|
Pass |
|
Dimensional Stability (after etch)
|
IPC-TM-650,
2.2.4B |
% |
0.08 |
|
Dimensional Stability (after thermal)
|
IPC-TM-650,
2.2.4C |
% |
0.08 |
|
Solder Float
|
IPC-TM-650,
2.4.13A |
|
Pass |
|
Solderability
|
IPC-S-804,
Method 1 |
|
Pass |
|
Dielectric Constant @ 1Mhz
|
IPC-TM-650,
2.5.5.3 |
|
3.3 |
|
Dielectric Strength
|
ASTM-D-149 |
Volts/mil |
5,000 |
|
Moisture and Insulation Resistance
|
IPC-TM-650,
2.6.3.2 |
Megaohms |
105 |
|
Flammability
|
UL94 |
|
V-0 |
For more information visit Sheldahl's web page at www.sheldahl.com,
e-mail us at novaflexvhd@sheldahl.com or contact
Sheldahl at one of the phone numbers below.
Sheldahl does not guarantee nor will it accept obligation or liability
based on the use of this information or data and this does not provide any
warranty, express or implied, including but not limited to warranty of
merchantability or fitness for a particular use. Values will vary upon
specific material construction. All data is subject to change without
notice.
North America:
- Sheldahl Inc.
- 1150 Sheldahl Road
- Northfield, MN 55057
- USA
- (507) 663-8477
- FAX: 507-663-8365
|
Asia:
- Sheldahl Hong Kong
- Unit 1205, 12 Floor, Sino Plaza
- 255 Gloucester Road,
- Causeway Bay, Hong Kong
- (852) 2836-8357
- FAX: (852) 2836-8359
|
Europe:
- Sheldahl Germany
- Pfarrer-Bensheimer Str. 26A
- 55129 Mainz, Germany
- (49) 6136-958585
- FAX: (49) 6136-958586
|
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