Patent ID: 7419628

Claim:
A method for encapsulating an insert part comprised of a fibre-reinforced circuit board having circuit components mounted thereon by compression moulding a heat-bonding thermosetting resin about the insert part between two joinable halves of a separable mould, said mould having an upper mould half and a lower mould half forming a cavity therebetween when the mould is closed, inner moulding faces attached to displaceable respective fixed parts of a pressing table, wherein, the mould halves each have a set of a support devices displaceable in the cavity relative to the respective moulding faces comprising the steps of: selecting the heat-bonding thermosetting resin having a viscosity chosen in the range of about 1-10 6 to about 30-10 6 mPas; positioning the support devices in the mould for supporting the insert part in a fixed position relative to the mould faces; positioning the insert part on the support devices; thereafter loading the heat-bonding thermosetting resin in the mould; closing the mould after the loading step and the positioning step; pressing the mold halves together for compressing the resin to initiate curing of the resin after closing the mold; concurrently with compressing the resin and prior to curing of the resin, removing the support device from its position supporting the insert part leaving temporary holes in the material; and thereafter continuing pressing the mould halves together to further compress the resin for filling the temporary holes left in the material after removal of the support device and to continue the curing of the resin until said resin fully cures, whereby the circuit board and electronic components thereon are surrounded by the fully cured resin without damaging the circuit board and electronic components.