Compliant bonding of beam-lead devices such as integrated circuit chips is accomplished by engaging successive ones of the chips with successive portions of an apertured strip of a compliant bonding medium and bonding the chips to successive portions of substrates. A bonding head travels along a bonding axis both to pick up a chip from a tray and later to bond the chip to a substrate. After each bonding stroke a spent portion of the strip is removed from the bonding axis and a fresh portion is i...

A plurality of independently displaceable pins are employed to apply bonding pressure to a compliant medium at widely spaced bonding sites. The pins permit compensation for workpiece irregularities between the bonding sites such as substrate waviness, warpage, lack of parallelism, etc., while the compliant medium compensates for localized workpiece irregularities such as variations in the thickness of leads and/or land areas.

The bonding of two workpieces by ultrasonic or thermocompression techniques requires the use of a rigid bonding tip or ram to transmit the bonding energy, whether it be vibratory, mechanical and/or thermal. In time, such a rigid medium is subject to wear, to mis-alignment and to pickup of material from the workpieces, the latter causing the upper workpiece to stick to the tip. Further, such a rigid medium cannot be used reliably to make a number of bonds simultaneously, because minor size differ...

A self-supporting bathing receptacle of compliant material for bathing a person therein includes pliant side and end panels secured along the sides and ends of a bottom panel in a manner so as to be drawn upwardly into confronting relation to form side and end walls of a bathing basin. Pliable ribbons are secured to opposite side panels of the basin to extend across a person in the bathing zone so as to be secured together to hold the side panels in their upwardly extended position against the w...

The disclosure relates to a compliant platform for use in deep water. The platform comprises a structure including a working deck positioned above the water by a plurality of leg members which are rigidly connected to the working deck and are pinned into the bottom of the body of water. Horizontal bracing members are rigidly connected between the leg members. Vibration-influencing means are located on the structure to provide the structure with a first mode of vibration with a frequency less tha...

Polyaminobismaleimides having superior thermomechanical properties can be produced by reacting maleimide terminated polyaliphatic ethers and maleimide terminated aromatic compounds with an aromatic diamine. These bismaleimide polymers display high recoverable elongation together with good tensile adhesive and electrical properties and thermal and fuel stability.

A rubber compound having acoustic characteristics similar to water has tubes that are compliant to acoustic frequencies embedded in the compound. This is adapted to underwater use on the hull of a vessel as an acoustic baffle and vibration shield for protection of equipment from noise giving the equipment an improved signal to noise reception ratio.

A compliant underwater pipe system having a compliant pipe whose buoyancy is readily controlled extending vertically in a sea, having a pump module mounted at the bottom end of the compliant pipe and an energy conversion device at the top end thereof whereby cold water is pumped from the bottom of the sea to the energy conversion device that utilizes the difference in temperature of the water to produce energy in a useable form.

A compliant structure formed of resilient tape of the self-straightening type is used to guide a web of thin material which is transferred between two machine elements that have relative motion to each other. The structure is applied to a ribbon supply and take-up system for typewriters and teleprinters of the type having a carriage-transported printing device. The resilient tape, with one surface being used to guide the ribbon, is connected and constrained between a frame-supported ribbon suppl...

Lightweight, porous, compliant structural members comprising an assemblage of metallic strips disposed in side-by-side relationship with the edges of the strips at opposite sides of the assemblage. There are interstices between the strips, and the edges of the strips are fixed relative to each other on at least one side of the assemblage to maintain the strips in the proper relationship.