Indium3.1 water-soluble Pb-free solder paste is formulated for fine-pitch applications. The company claims the long stencil life virtually eliminates solder paste waste.
Said to exhibit excellent wetting under both air and nitrogen reflow atmosphere. Residue is easily cleaned with water.
Features a wide reflow window, slump resistance, low voiding and low foaming.
MX-Series SMT assembly systems are for medium- to high-volume operations. They feature real time vacuum monitoring prompts the operator (without stopping the machine), when a job is loaded and when running. When it detects the vacuum threshold in the heads is low, it also alerts the operator. Each feeder, in addition to storing part number, lot code and feeder pitch, carries its presentation performance forever.
The series consists of two systems, MX-310 and MX-240. Features include:
Also, the MX-310 has a four stage transport system that enables 25% more speed when processing 8" x 12" boards; a head mounted servo driver/motion controller that permits machines to run at higher speeds through faster response times and eliminates 75% of the cabling from the head to the bottom chassis.
The MX-240 has a closed-loop force control head to minimize impact force. These spindle-mounted sensors operate in concert with high-response vacuum control for force control; a high-speed tray presentation, a side-mounted P40TSU (40-tray shuttle unit) that presents tray fed components without limiting feeder space or board size; and can be configured with two units, which allows 170 unique part numbers to be held per machine.
Tyco Electronics will premiere the Mirae MX-Series at Assembly Technology Expo, Sept. 26-30, 2004.
http://automation.tycoelectronics.com
3M Wafer Support System for ultra-thin semiconductor wafer backgrinding is an alternative to conventional tape processes and is capable of producing wafers as thin as 20 microns. Permits manufacturers to use existing grinding equipment to produce thinner wafers, at faster grinding speeds, with increased yields. Includes both equipment and consumables for a comprehensive approach to wafer backgrinding support challenges.
Features include:
Consumable materials include 3M ultra-clean UV curable spin-on adhesive and a light-to-heat conversion coating. The LTHC layer enables separation of the adhesive from the glass after the backgrinding process.
Unlike tapes used in other systems, the liquid adhesive used in the 3M system flows into the topography of the wafer, providing even support over the entire surface and providing a rigid, uniform base. The system minimizes stress put on the wafer, resulting in less cracking and increased yields.