Patent ID: 9125328
Filing Date: 2015-09-01
Classification: H01L,H05K,Y10T

Abstract:
1. A method of manufacturing a multichip package structure, comprising the steps of: providing a substrate body; surroundingly forming surrounding liquid colloid on the substrate body; forming a semidrying surrounding light-reflecting frame by naturally drying the surrounding liquid colloid at a predetermined room temperature between 20° C.-30° C. until the surrounding liquid colloid forms a dried colloid outer layer and a non-drying colloid body without using any curing device, the dried colloid outer layer covering the non-drying colloid body, and the dried colloid outer layer and the non-drying colloid body forming the semidrying surrounding light-reflecting frame; placing a plurality of light-emitting chips on the substrate body while the non-drying colloid body of the semidrying surrounding light-reflecting frame is naturally drying at the predetermined room temperature between 20° C.-30° C., wherein the light-emitting chips are electrically connected to the substrate body and surrounded by the semidrying surrounding light-reflecting frame; forming a package colloid body on the substrate body to cover the light-emitting chips, while the non-drying colloid body of the semidrying surrounding light-reflecting frame is further naturally drying at the predetermined room temperature between 20° C.-30° C., wherein the semidrying surrounding light-reflecting frame contacts and surrounds the package colloid body; and after forming a package colloid body on the substrate body to cover the light-emitting chips, the non-drying colloid body of the semidrying surrounding light-reflecting frame is further naturally drying at the predetermined room temperature between 20° C.-30° C. until completely dried, and thus the semidrying surrounding light-reflecting frame becomes a dried surrounding light-reflecting frame, the dried surrounding light-reflecting frame being in a solid state; wherein the semidrying surrounding light-reflecting frame has an arc shape formed on the top surface of the semidrying surrounding light-reflecting frame, the semidrying surrounding light-reflecting frame has a radius tangent and the angle of the radius tangent relative to the top surface of the substrate body is between 40° and 50°, the maximum height of the semidrying surrounding light-reflecting frame relative to the top surface of the substrate body is between 0.3 mm and 0.7 mm, the width of the bottom side of the semidrying surrounding light-reflecting frame is between 1.5 mm and 3 mm, the thixotropic index of the semidrying surrounding light-reflecting frame is between 4 and 6, and the semidrying surrounding light-reflecting frame is formed by mixing inorganic additive with white thermohardening colloid.