摘要:
The present invention of three-stage process relates to preparing hollow particles with a buffer layer, exhibiting integrity of particle structure and uniformity of particle size, used in plastic or paper coating, and showing superior characteristics of gloss, whiteness, high opacity, high printing color density and good water resistance.
摘要:
A method of forming a semiconductor structure includes providing a stack structure having a first side and a second side opposite the first side. The stack structure includes a bottom wafer comprising a substrate; a plurality of through-silicon vias in the substrate; and a plurality of under bump metallurgies (UBMs) connected to the plurality of through-silicon vias, wherein the UBMs are on the first side of the stack structure. The method further includes attaching a handling wafer on the second side of the stack structure; performing a chip probing process; and removing the handling wafer from the stack structure.
摘要:
A system and a method of testing a semiconductor die is provided. An embodiment comprises a printed circuit board connected to a space transformation layer, which is connected to a substrate. The substrate uses through silicon vias and a redistribution layer to reduce the pitch of the connections beyond the historical limitations. A probe head using Cobra-style probe pins is connected to the redistribution layer through C4 bumps.
摘要:
The present invention of three-stage process relates to preparing hollow particles with a buffer layer, exhibiting integrity of particle structure and uniformity of particle size, used in plastic or paper coating, and showing superior characteristics of gloss, whiteness, high opacity, high printing color density and good water resistance.
摘要:
A universal system for testing different semiconductor devices provides a probe head with a probe pattern that may be used to test different test patterns formed on different semiconductor devices. Each of a plurality of bumps or pads of the test pattern contacts a corresponding probe of the probe head to enable the semiconductor device to be tested. The universal probe head may additionally or alternatively include a substrate design on the probe head that provides a pattern on the substrate of the probe head that may be used in conjunction with different patterns formed on a plurality of different printed circuit boards for testing different semiconductor devices.
摘要:
Pad structures and methods for forming such pad structures are provided. For the pad structure, the first conductive material layer has a first hardness over about 200 kg/mm2. The second conductive material layer is over the first conductive material layer and has a second hardness over about 80 kg/mm2. For the method of forming the pad structure, a plurality of first conductive material layers is formed within each of a plurality of openings of a substrate. The substrate has a plurality of openings therein. The first conductive material layers are formed within each of the openings of the substrate. The first conductive material layers substantially have a round top surface. The second conductive material layers are formed and substantially conformal over the first conductive material layers. The second conductive material layers cover a major portion of the round top surface of the first conductive material layers.
摘要翻译:提供了用于形成这种垫结构的垫结构和方法。 对于衬垫结构,第一导电材料层具有大于约200kg / mm 2的第一硬度。 第二导电材料层在第一导电材料层之上,并且具有大于约80kg / mm 2的第二硬度。 对于形成衬垫结构的方法,在衬底的多个开口的每一个内形成多个第一导电材料层。 基板在其中具有多个开口。 第一导电材料层形成在基板的每个开口内。 第一导电材料层基本上具有圆顶表面。 第二导电材料层被形成并基本上保形在第一导电材料层上。 第二导电材料层覆盖第一导电材料层的圆顶表面的主要部分。
摘要:
A system and a method of testing a semiconductor die is provided. An embodiment comprises a plurality of tips that each comprise a substrate with a conductive via, a first dielectric layer with vias connected to the conductive via, a second dielectric layer with vias over the first dielectric layer, and a metal layer over the second dielectric layer. Additional dielectric layers with vias may be used. This tip is electrically connected to a redistribution line that routes signals between the tip to electrical connections on a space transformation layer. The space transformation layer is electrically connected to a printed circuit board using, for example, a spring loaded connection such as a pogo pin. The space transformation layer is aligned onto the printed circuit board by a series of guidance mechanisms such as guide pins or smooth fixtures, and the planarity of the tips is adjusted by adjusting the screws.
摘要:
A system and a method of testing a semiconductor die is provided. An embodiment comprises a plurality of tips that each comprise a substrate with a conductive via, a first dielectric layer with vias connected to the conductive via, a second dielectric layer with vias over the first dielectric layer, and a metal layer over the second dielectric layer. Additional dielectric layers with vias may be used. This tip is electrically connected to a redistribution line that routes signals between the tip to electrical connections on a space transformation layer. The space transformation layer is electrically connected to a printed circuit board using, for example, a spring loaded connection such as a pogo pin. The space transformation layer is aligned onto the printed circuit board by a series of guidance mechanisms such as guide pins or smooth fixtures, and the planarity of the tips is adjusted by adjusting the screws.
摘要:
A system and a method of testing a semiconductor die is provided. An embodiment comprises a plurality of metal tips that are connected to a redistribution layer that fans out the pitch from the tips to metal plugs located in the substrate. The metal tips could be formed using semiconductor processes and either adding smaller layers of metal to larger layers of metal or else removing portions of one piece of metal to form the tips. The metal plugs are connected to a space transformation layer. The space transformation layer is electrically connected to a printed circuit board using, for example, a spring loaded connection such as a pogo pin. The space transformation layer is aligned onto the printed circuit board by a series of guidance mechanisms such as smooth fixtures, and the planarity of the tips is adjusted by adjusting a series of screws.
摘要:
A semiconductor die including a test structure is provided. The semiconductor die includes a loop-back formed on a surface of the semiconductor die. The loop-back structure includes a first bonding pad on a first surface; and a second bonding pad on the first surface, wherein the first and the second bonding pads are electrically disconnected from integrated circuit devices in the semiconductor die. A conductive feature electrically shorts the first and the second bonding pads. An additional die including an interconnect structure is bonded onto the semiconductor die. The interconnect structure includes a third and a fourth bonding pad bonded to the first and the second bonding pads, respectively. Through-wafer vias in the additional die are further connected to the third and fourth bonding pads.