MIL-PRF-38535K
APPENDIX C
C.3.4.1 Process capability demonstration. The manufacturer shall meet the requirements in 3.4.1.1 and shall also meet the
following for an RHA device. A RHACL shall be established for the environments selected by the TRB and consistently
demonstrated for a technology at the specified level of electrical performance. Changes in the RHACL may require
reevaluation of these capabilities by the TRB. Listed below are the radiation environments that shall be addressed:
a. Natural:
(1) Total ionizing dose and time dependent effects for ionizing radiation (MIL-HDBK-814, ASTM F1892 and TM 1019
of MIL-STD-883).
(2) Single-Event-Effects (SEE): Including upset, latch-up, burnout, gate rupture caused by Galactic Cosmic Rays
(GCR), Solar Enhanced Particles, and energetic neutron and protons (ASTM F1192 or JESD57).
(3) Displacement damage: Caused by energetic neutrons and protons.
b. Weapon:
(1) Dose rate: Upset, latch-up, burnout (MIL-HDBK-815, TM 1020, TM 1021, and TM 1023 of
MIL-STD-883).
(2) Neutron irradiation (MIL-HDBK-814 and TM 1017 of MIL-STD-883).
(3) Total ionizing dose (MIL-HDBK-814 and TM 1019 of MIL-STD-883).
C.3.4.1.1 Design. The manufacturer shall address the design methodology for the following areas of design:
(NOTE: These are also applicable to third party design centers.)
a. Model verification. Model verification shall provide evidence that models defining device response in radiation
environments accurately predict the nominal and worst-case circuit response over operating voltage limits and over the
temperature range selected for the technology at the RHACL.
b. Design rule verification. The vendor shall document his design rules for radiation hardening his technology and
demonstrate his procedures for verifying rule compliance in the context of Design Rules Check (DRC), Electrical Rules
Check (ERC) and reliability checking procedures (see G.3.1.b, G.3.4.1.c, H.3.2.1.1.1 b). These rules cover, as a
minimum:
(1) DRC: Geometric and physical.
(2) ERC: Shorts and open, connectivity.
(3) Reliability verification: Electromigration (current density), latch-up, electrostatic discharge (ESD), and fuse/anti-
fuse reliability.
(4) RHA rules: The vendor shall document their design rules for radiation hardening in their technology and the
procedures for verifying rule compliance.
c. Performance verification. The vendor shall demonstrate his ability to predict the response of the post-irradiation
performance at the RHACL including the effects of the specified limits for temperature and voltage variations and the
influence of process variations (see H.3.2.1.1.1.c). Any deviation from these requirements shall receive qualification
activity approval.
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ACTEL [ Actel Corporation ]
