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There is shown a multiple integrated circuit cooling module structure which can accurately monitor integrated circuit chip temperature at any chip site or all chip sites.
English (United States)
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This is the abbreviated version, containing approximately
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Module Chip Site Temperature Sensing Using Thermistor Imbedded in
There is shown a multiple integrated circuit cooling module structure which
can accurately monitor integrated circuit chip temperature at any chip site or all
Fig. 1 shows a sectional view of the thermistor-imbedded
piston alongside of a normal piston. The following are items shown
in Fig. 1:
1) Cooling hat
2) Multilayer ceramic substrate
3) Aluminum piston
5) Compression spring for piston
6) Plastic insert to captivate piston spring
7) Glass-encapsulated thermistor
8) Conical transmission plug
9) Piston cap 10) Hollow rod 11) Contact pressure spring for thermistor 12) Pigtail thermistor lead 13) Flexible printed circuit 14) Small slot in outside piston surface for the recessed
passage of the thermistor pigtail leads.
The thermistor 7 is positioned at the bottom of a hole closely adjacent to the
chip surface. It is held in constant and intimate contact with the bottom surface
of the hole by the contact pressure thermistor spring 11.
The leads from the thermistor 7 pass inside the hollow tube 10, up into small
slots in the tapered surface of the conical transmission plug 8, out through slots
in the top of the piston, beneath the piston cap 9, down the small outside slots in
the piston surface 14, and then out to where they are bonded to circuit paths on
the flexible printed circuit 13.
Fig. 2 shows a section view of the module illustrating the technique for