Abstract: A semiconductor die including mechanical-stress-resistant bump structures is provided. The semiconductor die includes dielectric material layers embedding metal interconnect structures, a connection pad-and-via structure, and a bump structure including a bump via portion and a bonding bump portion. The entirety of a bottom surface of the bump via portion is located within an area of a horizontal top surface of a pad portion of the connection pad-and-via structure.

Abstract: An apparatus for forming a package structure is provided. The apparatus includes a processing chamber for bonding a first package component and a second package component. The apparatus also includes a bonding head disposed in the processing chamber. The bonding head includes a plurality of vacuum tubes communicating with a plurality of vacuum devices. The apparatus further includes a nozzle connected to the bonding head and configured to hold the second package component. The nozzle includes a plurality of first holes that overlap the vacuum tubes. The nozzle also includes a plurality of second holes offset from the first holes, wherein the second holes overlap at least two edges of the second package component. In addition, the apparatus includes a chuck table disposed in the processing chamber, and the chuck table is configured to hold and heat the first package component.

Abstract: A method for fabricating a semiconductor device includes the steps of: providing a substrate, wherein the substrate comprises a MRAM region and a logic region; forming a magnetic tunneling junction (MTJ) on the MRAM region; forming a top electrode on the MTJ; and then performing a flowable chemical vapor deposition (FCVD) process to form a first inter-metal dielectric (IMD) layer around the top electrode and the MTJ.

Abstract: A machine tool and a feed saddle structure thereof are provided. The feed saddle structure includes: a fixed column having a first vertical side and a horizontal side adjacent to the first vertical side; a feed saddle having a second vertical side corresponding in position to the first vertical side of the fixed column, and a bottom portion being adjacent to the second vertical side and corresponding in position to the horizontal side of the fixed column; a first guide rail and a second guide rail disposed on the first vertical side and the horizontal side of the fixed column, respectively; and a first slider and a second slider disposed on the second vertical side and the bottom portion of the feed saddle, respectively, and engaged with the first guide rail and the second guide rail, respectively, thereby increasing the dynamic and static rigidity of the machine tool.

Abstract: A tool holder of the hollow taper shank in a tool machine is disclosed. A resisting block supported by a spring is received within a tool holder. As the short knife is disposed within the tool holder, the elastic force of the spring can be overcome. At first, a plurality of steel balls and a resisting block are pushed inversely until the front edge of an wider portion of the short knife passes through the steel ball. Now, the spring will release the energy from elastic deformation so as to enforce the resisting block to move forwards and outwards so as to return to the original position. Thereby, the knife can be firmly secured.

Abstract: An automatic pallet changer is composed of a pallet lifting mechanism and a revolving mechanism. The pallet lifting mechanism has a pallet platform and a lifting rod which is fastened with the bottom of the pallet platform. The pallet platform and the lifting rod are driven by oil pressure to move up and down in a linear manner. The body of the lifting rod is provided with a vertically-oriented first position confining portion. The revolving mechanism has a gear and a rack gear member. The gear is pivoted to the bottom of the pallet lifting mechanism at a fixed height and provided axially with a slide channel in which the lifting rod is slidably disposed. The slide channel is provided in the inside thereof with a vertically-oriented second position confining portion, which is complementary in shape to the first position confining portion of the lifting rod for enabling the lifting rod and the pallet platform to turn synchronously.