NOVELTY - Forming a ductile multilayer silicone resin film involves forming a silicone resin film containing at least two polymer layers, where at least one of the polymer layers is a silicone resin layer (120) having a thickness (T) less than its corresponding ductile transition thickness (Tdt).    USE - To form a silicon resin film (claimed), useful as substrates for electronic devices or solar cells, and useful as barrier layers to encapsulate devices.    ADVANTAGE - The silicone resin layer having a thickness less than its corresponding ductile transition thickness, improves the flexibility and/or durability of the multilayer silicone resin film.    DETAILED DESCRIPTION - Forming a ductile multilayer silicone resin film involves forming a silicone resin film containing at least two polymer layers, where at least one of the polymer layers is a silicone resin layer (120) having a thickness (T) less than its corresponding ductile transition thickness (Tdt). The two polymer layers are preferably two silicone resin layers, each having a thickness less than its corresponding ductile transition thickness. The method preferably involves treating at least one surface of the first silicone resin layer for increasing adhesion to the second silicone resin layer. The method further involves forming at least one third layer adjacent to at least one of the two silicone resin layers. The third layer comprises rubber particle, a co-polymerized rubber segment and/or a silicone rubber. The two polymer layers are preferably the silicone resin layer, and one of a silicone rubber layer or an organic polymer layer. INDEPENDENT CLAIMS are included for the following:    (1) a silicone resin film comprising at least two polymer layers, and at least one of the polymer layer is a silicone resin layer, which has a thickness less than its corresponding ductile transition thickness;    (2) a die insert component comprising two L-shaped sheets, with each L-shaped sheet having two legs intersecting at right angles to form an inner corner and an outer corner of the L-shaped sheet, where the two L-shaped sheets are deployed perpendicular to each other, such that the L-shaped sheets meet at their respective inner corners, and one leg of each L-shaped sheet is bent so that a top edge of the leg is adjacent to the outer corner of the other L-shaped sheet;    (3) a die insert comprising two die insert components that are joined such that the second leg of the first L-shaped sheet in the first die insert component is parallel and adjacent to the second leg of the first L-shaped sheet in the second die insert component;    (4) a microlayer die assembly comprising several die inserts including two die insert components, deployed adjacent to each other in a specific arrangement;    (5) a system for forming the multilayer silicone resin film, comprising a first source (e.g. a first single screw extruder) of a first silicon-containing material (e.g. first silicone resin); a second source (e.g. a second single screw extruder or a gum pot with a gear pump) of a second silicon-containing material (e.g. a second silicone resin or polydimethylsiloxane); and the multilayer die assembly to receive the first and second silicon-containing materials from the first and second sources respectively, and form a multilayer polymer stack containing alternating first and second layers of the first and second silicon containing materials respectively; where each die insert of the multilayer die assembly receives a first polymer stack containing alternating layers of the first and second silicon-containing materials, to provide a second polymer stack containing alternating layers of the first and second silicon-containing materials, which are double than the number of alternating layers in the first polymer stack; and    (6) a multi-layered polymer material formed using the system, comprising alternating layers formed of the first silicon-containing polymer and second polymer.    DESCRIPTION OF DRAWING(S) - The figure shows a multilayer silicone resin film on a substrate.    silicone resin layer. (120)