摘要:
This method involves the formation of a precursor substrate surface which includes islands (40) of insulating material, each of which is encircled by a crystallization seeding area (170) of substantially single crystal semiconductor material. The boundaries of the islands are defined with a first pattern delineating device, e.g., a mask, which, in terms of the pattern it produces, is substantially identical to a second pattern delineating device. The latter device is a component of pattern delineating apparatus used in forming an IC, e.g., an IC mask set, the component being used to delineate the device regions of the IC. A layer of non-single crystal semiconductor material (45) is formed on the precursor substrate surface (30), and crystallized with little or no displacement of the islands. The pattern delineating apparatus is then used to form an IC in the crystallized material.
摘要:
This invention relates to an integrated circuit chip assembly wherein at least one integrated circuit chip (e.g., 46-48, 49) is attached to a substrate (e.g., 28) of a single crystal material, said at least one chip being electrically connected to lithographically connected circuitry (e.g., 50-54) on the substrate. The chips may be on top or on the bottom of the substrate or both, may be placed within wells or grooves in the substrate or may be placed above or below the wells or grooves via peripheral attachment of the chips. walls of the wells or grooves permit alignment by match-up with beveled edges of some chips. Circuitry may be also applied to the walls of some wells to permit connections to chips secured below the substrate.