摘要:
According to one embodiment, a method for manufacturing semiconductor device can include forming a groove with a depth shallower than a thickness of a wafer. The method can include attaching a surface protection tape via a first bonding layer provided in the surface protection tape. The method can include grinding a surface of the wafer to divide the wafer into a plurality of semiconductor elements. The method can include forming an element bonding layer by attaching a bonding agent and turning the attached bonding agent into a B-stage state. The method can include attaching a dicing tape via a second bonding layer provided in the dicing tape. The method can include irradiating the first bonding layer with a first active energy ray. The method can include removing the surface protection tape. The method can include irradiating the second bonding layer with a second active energy ray.
摘要:
According to one embodiment, a method of manufacturing a semiconductor device, a bonding layer is formed on a first surface of a chip region of a semiconductor wafer. Semiconductor chips are singulated along a dicing region. The semiconductor chips are stacked stepwise via the bonding layer. In formation of the bonding layer of the semiconductor chip, in at least a part of a first region of the first surface not in contact with the other semiconductor chip in a stacked state, a projected section where the bonding layer is formed thicker than the bonding layer in a second region that is in contact with the other semiconductor chip is provided.
摘要:
In one embodiment, an adhesive layer is formed by applying a liquid adhesive to a semiconductor wafer whose wafer shape is maintained by a surface protective film attached to a first surface. A supporting sheet having a tacky layer is attached to a second surface of the semiconductor wafer. After the surface protective film is peeled, the supporting sheet is expanded to cleave the adhesive layer including the adhesive filled into the dicing grooves. The first surface of the semiconductor wafer is cleaned while an expansion state of the supporting sheet is maintained. Tack strength of portions corresponding to the dicing grooves of the tacky layer is selectively reduced before cleaning.