Abstract: Disclosed is a composition and method for providing conductive electronic component high strength bonding. The composition comprises an effective amount of material which is less than 3% by weight of tin and greater than 97% by weight of lead. The method invention comprises providing a leadframe comprising at lest one of power, ground, and signal conductive elements; and preforming solder material onto one of the conductive elements, the solder bonding material having an effective amount of material which is less than 3% by weight of tin and greater than 97% by weight of lead.

Abstract: A flexible chip interconnection includes a flexible film having interconnection lines formed on opposite sides thereof, with selected of the interconnection lines from one side connected by through-film conductors to interconnection lines on the other side. Insulating layers cover both sets of interconnection lines. Multi-chip circuits can be formed on the film with the interconnection lines directly connecting the chips.

Abstract: Disclosed is a stacked leadframe assembly for use with integrated circuit chips. The assembly comprises multiple leadframes arranged in stacked relation. Each leadframe comprises conductive elements and solder bumps for electrically and mechanically connecting selected conductive elements of the leadframes.

Abstract: Disclosed is a composition and method for providing conductive electronic component high strength bonding. The composition comprises an effective amount of material which is less than 3% by weight of tin and greater than 97% by weight of lead. The method invention comprises providing a leadframe comprising at least one of power, ground, and signal conductive elements; and preforming solder material onto one of the conductive elements, the solder bonding material having an effective amount of material which is less than 3% by weight of tin and greater than 97% by weight of lead.

Abstract: Disclosed is a composition and method for providing conductive electronic component high strength bonding. The composition comprises an effective amount of material which is less than 3% by weight of tin and greater than 97% by weight of lead. The method invention comprises providing a leadframe comprising at least one of power, ground, and signal conductive elements; and preforming solder material onto one of the conductive elements, the solder bonding material having an effective amount of material which is less than 3% by weight of tin and greater than 97% by weight of lead.

Abstract: A flexible film has electrical interconnections on each side. Through-film interconnects pass through openings in the film to connect the electrical interconnects on opposite sides of the film. Electrical contact patterns are formed on one side of the film to accomodate integrated circuit chips or other small electronic devices. Multi-chip circuits can be formed by connecting the chips to the pattern areas and connecting the patterns by way of the electrical interconnections on either side, or on both sides.

Abstract: Disclosed is a system and method for controlled compression furnace bonding of a semiconductor chip to conductive elements of a leadframe. The system comprises a holding member having a chip support surface for supporting a semiconductor chip and a positioning system for precisely positioning conductive elements of a leadframe with corresponding bonding locations on the semiconductor chip. A furnace heating system comprising a furnace is employed for heating and bonding the conductive elements to the chip bonding locations.

Abstract: Disclosed is an interface for testing an integrated circuit device through a plurality of contacts on an exposed surface of the device. The interface comprises a flexible sheeting having first and second opposing surfaces. A plurality of contacts are disposed on the first surface of the sheet in a pattern designed to mate with a plurality of contacts on an integrated circuit device. A plurality of thin film conductors are patterned on the sheet, the conductors each being connected to a contact on the sheet and being adapted for connection to a circuit for testing the device. The interface comprises apparatus for preforming into a generally domed shape a portion of the sheet which includes a plurality of the contacts and apparatus for flexing the flexible sheet so that the contacts on both the sheet and the device may be brought into intimate contact.