초록 ▼

A sheet material for use as a vacuum bag in the vacuum laminating of printed circuit boards, to heat sinks. The material of the sheet is flexible and electrically conductive to both conform around electrical components and to prevent damage to the components due to electrostatic discharge. In additi

A sheet material for use as a vacuum bag in the vacuum laminating of printed circuit boards, to heat sinks. The material of the sheet is flexible and electrically conductive to both conform around electrical components and to prevent damage to the components due to electrostatic discharge. In addition, the material has one surface which is textured. The sheet material is formed into an enclosure to hold the circuit board and heat sink and it is the textured surface which is placed in contact with the “populated”surface of the board to permit air to be easily removed from the bag enclosure during the initial evacuation stage of the lamination process.

대표청구항 ▼

A sheet material for use in a vacuum lamination process for laminating an article, comprising: a thin sheet made of an elastic material substance having a given surface area on opposite sides thereof; an electrically conductive material incorporated into said elastic material substance throughout th

A sheet material for use in a vacuum lamination process for laminating an article, comprising: a thin sheet made of an elastic material substance having a given surface area on opposite sides thereof; an electrically conductive material incorporated into said elastic material substance throughout the sheet so as to provide an electrically conductive property to said sheet over the surface area thereof; and a plurality of raised projections spaced apart from each other and distributed over the surface area of a side of the sheet and located on a side of the sheet for permitting air to traverse the sheet when the side is in contact with a smooth surface. In an apparatus including a vacuum frame assembly for use in a vacuum lamination process for laminating an article, the improvement of a sheet material, which is held by the vaccum frame assembly, comprising: a thin sheet made of an elastic material substance having a given surface area on opposite sides thereof; an electrically conductive material incorporated into said elastic material substance through the sheet so as to provide an electrically conductive property to said sheet over the surface area thereof; and a plurality of raised projections spaced apart from each other and distributed over the surface area of a side of the sheet and located on a side of the sheet for permitting air to traverse the sheet when the side is in contact with a smooth surface.