Effects of shadows on photocurrent compensated integrated circuits
Conference
·
· IEEE (Inst. Elec. Electron. Eng.), Trans. Nucl. Sci., v. NS-20, no. 6, pp. 180-184
OSTI ID:4311861
Simple calculations show that high-z components such as wires, capacitors, and solder bonds can easily cast shadows with edges only 25 mu m wide when illuminated with a low energy (E < 60 keV) x-ray beam. If one of these shadows falls between a photocurrent compensating diode-transistor pair, the mismatch in dose can drastically reduce the transient hardness of the integrated circuit. Results of pulsed x-ray tests on the Texas Instruments RSN 54L 71 R-S flip-flop and RSN 54L 00 quad two input nand gate showed that the upset threshold of a given state of the flip-flop was lowered by as much as a factor of 29 and the nand gate by a factor of 5.7. ( auth)
- Research Organization:
- Aerospace Corp., El Segundo, CA
- NSA Number:
- NSA-29-029600
- OSTI ID:
- 4311861
- Journal Information:
- IEEE (Inst. Elec. Electron. Eng.), Trans. Nucl. Sci., v. NS-20, no. 6, pp. 180-184, Journal Name: IEEE (Inst. Elec. Electron. Eng.), Trans. Nucl. Sci., v. NS-20, no. 6, pp. 180-184; ISSN IETNA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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