Temperature control of solid state circuit chips
First Claim
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1. Apparatus for use with first and second components joined by connection means to relieve the stress in the connection means due to temperature effects which cause different expansions and contracts between the first and second components comprising:
- first heater means proximate the first component;
energizing means connected to said first heater means;
temperature sensing means proximate the first and second components to sense the temperatures thereof; and
control means connected to said temperature sensing means and to said energizing means and operable in accordance with a first predetermined temperature relationship between the first and second components to energize the said first heater means to heat the first component to an extent sufficient to offset the difference in expansion and contraction of the components.
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Accused Products
Abstract
Controlled heater apparatus for selectively heating a solid state circuit chip and the substrate upon which it is mounted by a solder bump so as to cause substantially equal expansion and contraction in the chip and substrate to relieve stress on the connecting solder bump.
82 Citations
9 Claims
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1. Apparatus for use with first and second components joined by connection means to relieve the stress in the connection means due to temperature effects which cause different expansions and contracts between the first and second components comprising:
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first heater means proximate the first component; energizing means connected to said first heater means; temperature sensing means proximate the first and second components to sense the temperatures thereof; and control means connected to said temperature sensing means and to said energizing means and operable in accordance with a first predetermined temperature relationship between the first and second components to energize the said first heater means to heat the first component to an extent sufficient to offset the difference in expansion and contraction of the components. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification