摘要:
New demounting methods and apparatuses for separating temporarily, permanently, or semi-permanently bonded substrates and articles formed from those methods and apparatuses are provided. The methods comprise demounting a device wafer from a carrier wafer or substrate that have only been strongly bonded at their outer perimeters. The edge bonds are chemically, mechanically, acoustically, or thermally softened, dissolved, or disrupted to allow the wafers to be easily separated with very low forces and at or near room temperature at the appropriate stage in the fabrication process. A clamp for facilitating separation of the bonded substrates is also provided.
摘要:
Disclosed herein is a wafer laminate suitable for production of thin wafers and a method for producing the wafer laminate. The wafer laminate can be formed easily by bonding between the support and the wafer and it can be easily separated from each other. It promotes the productivity of thin wafers. The wafer laminate includes a support, an adhesive layer formed on the support, and a wafer which is laminated on the adhesive layer in such a way that that surface of the wafer which has the circuit surface faces toward the adhesive layer, wherein the adhesive layer is a cured product of an adhesive composition composed of resin A and resin B, the resin A having the light blocking effect and the resin B having the siloxane skeleton.
摘要:
A wiring substrate 11 used for improvement in manufacturing efficiency of a semiconductor device includes a support body 12 having transparency; an adhesive layer 13 disposed on a main surface 12a of the support body 12, the adhesive layer 13 including a peeling layer 41 which contains a third resin which is decomposed by light irradiation and a protective layer 42 which is disposed on the peeling layer 41 and contains a fourth resin; and a laminate 21 disposed on the adhesive layer 13, the laminate 21 including a first resin layer 14, a second resin layer 19 disposed on the first resin layer 14, and a wiring pattern 18 disposed at least between the first resin layer 14 and the second resin layer 19. Accordingly, the semiconductor chip 22 and the wiring substrate 11 which is the external connection member can be separately manufactured, thereby improving manufacturing efficiency of the semiconductor device 1.
摘要:
The present invention is a wafer processing laminate including a support (3), a temporary adhesive material layer (2) formed on the support, and a wafer (1) stacked on the temporary adhesive material layer, the wafer having a front surface on which a circuit is formed and a back surface to be processed, wherein the temporary adhesive material layer comprises a three-layered complex temporary adhesive material layer that includes a first temporary adhesive layer composed of a thermoplastic organopolysiloxane polymer layer (A) having a thickness of less than 100 nm and releasably laminated to the front surface of the wafer, a second temporary adhesive layer composed of a thermosetting siloxane-modified polymer layer (B) releasably laminated to the first temporary adhesive layer, and a third temporary adhesive layer composed of a thermoplastic organopolysiloxane polymer layer (A') having a thickness of less than 100 nm, releasably laminated to the second temporary adhesive layer, and releasably laminated to the support. This wafer processing laminate can withstand a thermal process at a high temperature exceeding 300°C, and can increase productivity of thin wafers.
摘要:
Provided is a method of peeling an electronic member (16) from a laminate (10) composed of the electronic member (16) adhered to a supporting substrate (12) via an adhesive film (14), the adhesive film (14) having a self-peeling adhesive layer (17) on a surface located on the side of the supporting substrate (12) and an exposed region A in at least one part of a surface (14a) which is located on the side of the electronic member (16). The method includes: a step of reducing adhesive strength between the supporting substrate (12) and the self-peeling adhesive layer (17) in the region A by applying energy on the region A; a step of removing the supporting substrate (a) from the laminate by further applying energy on the region and thus further reducing the adhesive strength reduced in the prior step between the supporting substrate (a) and the self-peeling adhesive layer from a starting point of the interface between the supporting substrate (a) and the self-peeling adhesive layer; and a step of peeling the electronic member (16) from the laminate by removing the adhesive film (14) from the electronic member (16).
摘要:
A temporary adhesive for which temporary adhesion and subsequent detachment are simple. The temporary adhesive composition includes: (A) an organopolysiloxane having a weight-average molecular weight of at least 15,000, obtained by a hydrosilylation reaction between (A1) and (A2) described below, and (B) an organic solvent having a boiling point of not more than 220°C, wherein (A1) is an alkenyl group-containing organopolysiloxane having a weight-average molecular weight exceeding 2,000, comprising 35 to 99 mol% ofT siloxane units and 1 to 25 mol% of M siloxane units, and in which alkenyl groups bonded to silicon atoms represent at least 2 mol% of all the organic groups bonded to silicon atoms, and (A2) is a specific organohydrogenpolysiloxane having at least two silicon atom-bonded hydrogen atoms or a specific hydrosilyl group-containing compound.
摘要:
A circuit pattern of a front surface structure (2) is formed in a front surface of a semiconductor wafer (1) and an alignment mark (3) is formed on the front surface of a semiconductor wafer (1). Then, a transparent supporting substrate (12) is attached to the front surface of the semiconductor wafer (1) by a transparent adhesive (11). Then, a resist (13) is applied onto a rear surface of the semiconductor wafer (1). Then, the semiconductor wafer (1) is mounted on a stage (21) of an exposure apparatus, with the supporting substrate (12) down. Then, the alignment mark (3) formed on the front surface of the semiconductor wafer (1) is recognized by a camera (22) which is provided below the stage (21) through the supporting substrate (12) and the adhesive (11) from the lower side of the stage (21) and the positions of the semiconductor wafer (1) and a photomask (24) are aligned with each other. Then, the resist (13) is patterned. Then, a circuit pattern of a rear surface structure is formed in the rear surface of the semiconductor wafer (1) using the resist (13) as a mask.
摘要:
The present invention provides a non-aromatic saturated hydrocarbon group-containing organopolysiloxane containing the following units (I) to (III): (I) a siloxane unit (T unit) represented by R 1 SiO 3/2 : 40 to 99mol%; (II) a siloxane unit (D unit) represented by R 2 R 3 SiO 2/2 : 59mol% or less; and (III) a siloxane unit (M unit) represented by R 4 R 5 R 6 SiO 1/2 : 1 to 30mol%. There can be an organopolysiloxane, which is soluble in a nonpolar organic solvent so that the organopolysiloxane can be peeled in a short time, and which is hardly soluble in a polar organic solvent to be exemplarily used upon coating a photoresist onto a semiconductor side of a joined substrate and removing the photoresist therefrom so that the organopolysiloxane is not peeled from the supporting substrate upon coating a photoresist onto a semiconductor side of a joined substrate and removing the photoresist therefrom.
摘要翻译:本发明提供了一个非芳族饱和烃基的有机聚硅氧烷含有下列单元(I)至(III):(I)的硅氧烷单元(T单元)中的R 1的SiO 3/2表示:40〜99摩尔%; (II)的硅氧烷单元(D单元)中的R 2 R 3的SiO 2/2表示:59mol%或更少; 和(III)中的R 4 R 5 R 6的SiO 1/2表示的硅氧烷单元(M单元):1〜30摩尔%。 可存在于有机聚硅氧烷的所有可溶于所以也有机聚硅氧烷可以在很短的时间被剥离的非极性有机溶剂,并且所有这一切是难溶于极性有机溶剂中,以在涂覆光致抗蚀剂走上的一个半导体一侧示例性地使用 接合的基板,并从那里去除光刻胶所以做了有机聚硅氧烷没有从支承基板在涂覆光致抗蚀剂到接合的基板的半导体侧,并从那里去除光刻胶剥离。
摘要:
The present invention relates to a method for producing a product wafer (1) equipped with chips (12, 15) on two sides, in particular, comprising the following sequence: - processing a first side (3) of the product wafer - bonding the product wafer by the first side thereof on a first, rigid carrier wafer (8) with a first intermediate layer (18) consisting of a first adhesion layer (6) applied at least marginally - processing a second side of the product wafer, said second side lying opposite the first side, and - bonding the product wafer by the second side thereof on a second, rigid carrier wafer (13) with a second intermediate layer (17) consisting of a second adhesion layer (14) applied at least marginally, wherein the first intermediate layer and the second intermediate layer are embodied differently such that the first carrier wafer (8) can be separated from the product wafer selectively before the second carrier wafer (13).