RM-4100 reduces the flash burr in molding QFN etc. package.

Features

• Flat molding surface can be given, because of reducing the wrinkle in loading the sheet and in clamping the mold.
• The surface layer of special material sticks to the substrates and the terminals, etc.
• Therefore the sheet protects the invasion of the epoxy molding compounds, the flash is prevented.

Molding experiment example

Characteristics

Item	Unit	RM-4100	RM-4200
Composition (Section)	-
Thickness of sheet	mm	0.04	0.05
Tensile strength	MPa	40	40
Tensile elongation	%	50	50
Standard dimension (W×L)	mm	50~300×1000	50~300×2000
Product	-	Role(dia.:approx.12cm)
Surface of film	-	Flat	Mat