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Business : ERS electronic Unveils Automated Panel-Level Packaging System

KUALA LUMPUR, Oct 1 (Bernama) -- ERS electronic, a provider of thermal management solutions for semiconductor manufacturing, has introduced a fully automated panel-level packaging (PLP) system for 310×310 mm substrates, integrating temporary carrier bonding, debonding and detaping on a single platform.

We haven't written up this one. Bernama has the full story — the link below goes straight to it.

Read the original at bernama.com →

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Adding a NOT NULL Column to a Large PostgreSQL Table: Constant Default, Backfill or NOT VALID

Disclosure: I build Schemity , a desktop ERD tool - this post is from our blog and uses it for the examples. TL;DR: On PostgreSQL 11 and later, ADD COLUMN ...

  • Adding a NOT NULL column with constant default (e.g., NOW()) is fast in PostgreSQL 11+.
  • For per-row computed values, add column as nullable, backfill in batches, then set NOT NULL.
  • PostgreSQL 12+ allows NOT VALID constraint to skip full table scan during backfill.

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