New Epoxy Adhesive from LORD Meets Needs of Ingot Manufacturers

LORD has developed a new epoxy adhesive to temporarily join silicon ingots to a clasping fixture for wafer slicing. LORD 781 is a two-component, thixotropic adhesive system that helps ingot manufacturers to minimize operating costs, enhance utilization and decrease waste. It is also a high viscous material that minimizes adhesive flow to prevent ingot contamination.

The adhesive can bond ingots of different lengths to allow easy slicing and reduce waste. The new silicon ingot bonding material emits low odor and offers exceptional adhesion to various surfaces and provides high bond strength within 12 to 16 hours at room temperature.

The ingot slicing process involves bonding of multiple ingot blocks on a glass, followed by mounting the connected blocks onto the wire sawing tool. The integrated ingot will be cut into a slice or wafer by using a steel wire and cutting liquid. LORD’s new epoxy adhesive connects and fills the spaces between the ingots. It minimizes the movement produced by the steel wire that interacts with the ingot gap. This leads to wire breakages and excess waste of about four to six silicon ingot slices for each gap. Generation of more ingot waste also increases repair time and cost. The process can take about 20 minutes for reorganizing the sawing wire and an additional nine hours for repeating the cutting operation.

LORD 781 is used as a plaster to adhere ingot to ingot and enhance wire saw stability at higher temperatures. The new ingot bonding material provides considerable benefits to the solar market: high cost savings and decreased waste creation during the slicing process. It can also reduce warping of silicon slices and Total Thickness Variation (TTV).

Source: http://www.lord.com/

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    LORD Corporation. (2019, February 09). New Epoxy Adhesive from LORD Meets Needs of Ingot Manufacturers. AZoM. Retrieved on January 29, 2020 from https://www.azom.com/news.aspx?newsID=30761.

  • MLA

    LORD Corporation. "New Epoxy Adhesive from LORD Meets Needs of Ingot Manufacturers". AZoM. 29 January 2020. <https://www.azom.com/news.aspx?newsID=30761>.

  • Chicago

    LORD Corporation. "New Epoxy Adhesive from LORD Meets Needs of Ingot Manufacturers". AZoM. https://www.azom.com/news.aspx?newsID=30761. (accessed January 29, 2020).

  • Harvard

    LORD Corporation. 2019. New Epoxy Adhesive from LORD Meets Needs of Ingot Manufacturers. AZoM, viewed 29 January 2020, https://www.azom.com/news.aspx?newsID=30761.

Tell Us What You Think

Do you have a review, update or anything you would like to add to this news story?

Leave your feedback
Submit