| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic protecting sheet by which an electronic part and an electronic substrate with the electronic part mounted thereto are coated, and to provide its coating method. SOLUTION: The electronic part protecting sheet is formed by laminating (a) an element having thermal expansion, and (b) another element that has thermal melting property and loses it when it is given by light. Preferably, the thermal melting temperature of the element (a) is higher by 20°C than that of the element (b). The coating method is used to coat the electronic part by the electronic part protection sheet; and it includes a step of bringing the electronic part protection sheet into contact with a part to be protected, a step of heating a substrate at a temperature where the element (a) exhibits thermal expansion and the element (b) is melted by heating and to make the substrate uneven, and a step of emitting light. COPYRIGHT: (C)2008,JPO&INPIT
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