Home » Products

DE104/104ML

Specification Sheet #: IPC-4101C /21
Reinforcement: Woven E-glass
Resin System: primary: difunctional Epoxy, secondary: multifunctional Epoxy
Flame Retardant Mechanism: bromine epoxy resin (Minimum UL 94 Requirement: V-1)
Fillers: N/A
ID Reference: UL/ANSI: FR-4, ANSI FR-4/21
Glass Transition (Tg): 110 C - 150

DURAVER(r)-E-Cu quality 104/-104 ML corresponds to NEMA-Quality FR-4 and meets the requirements for flammability class V-0 in accordance with UL 94(Underwriters' Laboratories, Standard for Safety). The glass transition temerature (Tg) equals approx. 135 C. The laminate is pressed under vacuum, thus yielding significant qualitative advantages which cannot be achieved with conventional bonding technology, such as high dimensional stability, uniform sheet thickness and little surface ripple. The laminate displays very high thermal and chemical stability.

Laminates of this quality are identified by manufacture's code i. Correspondingly identified qualities are not damaged when processed by conventional methods and the characteristic value of the materials are nor impaired by such work.

Supply Forms

Standard copper cladding
18 microns, 35 microns and 70 microns, one-sided or two-sided.
Other thicknesses on request.

Copper foils
As standard copper foils (18, 35, 70 microns) we are using HTE-foils according to IPC-4562,
grade 3. For laminates with a substrate 0.1 mm VLP foil with HTE properties is used.

Panels
Panels are supplied cut to specifications, with minimum thickness of 0.2 mm, on request also with mechanically profiled edges.

Various forms of identification are also available, such as laser marking, embossing or ink-jet printing (also as barcode). Pre-cut panels greatly improve the logistics and also reduce the risk of damage to the surface.

Storage

The prepregs can be stored for six months at < 5 C or for three months at < 20 C and relative humidity of < 50 %. When removing chilled product from storage, take appropriate steps to prevent condensation.