The utility model relates to
pressure sensor technical field, concretely relates to a kind of high-temperature-resistant
pressure sensor chip packaging fixture, including upper clamp and lower clamp, upper clamp includes upper clamp one part, upper clamp one part is formed with first placement slot, first placement slot is used to place and hold expansion
alloy shell, expansion
alloy shell is used to be connected with glass base, lower clamp is used to limit
chip, upper clamp and lower clamp are matched and are used to expansion
alloy shell and
chip, so that first placement slot can
resist push expansion alloy shell, so that glass base is extruded and adheres to chip under melting state;Upper clamp and lower clamp are all made of
graphite, and upper clamp one part is made of elastic
graphite, so that expansion alloy shell after heating can expand in
horizontal and vertical direction. The high-temperature-resistant
pressure sensor chip packaging fixture of the application can improve the yield of leadless
sintering, so that the sintered pressure sensor chip is more stable and reliable.