Abstract: The invention provides a carbon-neutral biaxially stretched polyamide film containing a raw material derived from biomass and having high heat-resistance, impact resistance, and folding pinhole resistance, as well as decreased variability in a degree of biomass in the mechanical (longitudinal) direction. The biaxially stretched polyamide film roll contains biaxially stretched polyamide film containing 70-99% by mass of polyamide 6 resin and 1-30% by mass of a polyamide resin in which at least a part of a raw material is derived from biomass, wherein the film roll has a winding length of from 1,000 m to 60,000 m, a width of from 400 mm to 3,000 mm, and variability in a degree of biomass of 15% or less based on radiocarbon 14C measurement of a biaxially stretched polyamide film sample taken from a surface to a core of the film roll at an interval of 1000 m in an MD direction.

Abstract: A chip part is provided that includes a substrate in which an element region and an electrode region are set, an insulating film (a first insulating film and a second insulating film) which is formed on the substrate and which selectively includes an internal concave/convex structure in the electrode region on a surface, a first connection electrode and a second connection electrode which include, at a bottom portion, an anchor portion entering the concave portion of the internal concave/convex structure and which include an external concave/convex structure on a surface on the opposite side and a circuit element which is disposed in the element region and which is electrically connected to the first connection electrode and the second connection electrode.

Abstract: A chip part is provided that includes a substrate in which an element region and an electrode region are set, an insulating film (a first insulating film and a second insulating film) which is formed on the substrate and which selectively includes an internal concave/convex structure in the electrode region on a surface, a first connection electrode and a second connection electrode which include, at a bottom portion, an anchor portion entering the concave portion of the internal concave/convex structure and which include an external concave/convex structure on a surface on the opposite side and a circuit element which is disposed in the element region and which is electrically connected to the first connection electrode and the second connection electrode.

Abstract: A chip part is provided that includes a substrate 2 in which an element region 5 and an electrode region 16 are set, an insulating film (a first insulating film 9 and a second insulating film 3) which is formed on the substrate 2 and which selectively includes an internal concave/convex structure 18 in the electrode region 16 on a surface, a first connection electrode 3 and a second connection electrode 4 which include, at a bottom portion, an anchor portion 24 entering the concave portion 17 of the internal concave/convex structure 18 and which include an external concave/convex structure 6, 7 on a surface on the opposite side and a circuit element which is disposed in the element region 5 and which is electrically connected to the first connection electrode 3 and the second connection electrode 4.

Abstract: A chip part is provided that includes a substrate 2 in which an element region 5 and an electrode region 16 are set, an insulating film (a first insulating film 9 and a second insulating film 3) which is formed on the substrate 2 and which selectively includes an internal concave/convex structure 18 in the electrode region 16 on a surface, a first connection electrode 3 and a second connection electrode 4 which include, at a bottom portion, an anchor portion 24 entering the concave portion 17 of the internal concave/convex structure 18 and which include an external concave/convex structure 6, 7 on a surface on the opposite side and a circuit element which is disposed in the element region 5 and which is electrically connected to the first connection electrode 3 and the second connection electrode 4.