Through-hole assembly means bending leads on components and putting the leads through holes in the circuit board, then soldering them in place, and trimming the wires. That took up too much space ...

Tracking circuit board components By Alison Job for BRADY Corp Johannesburg, 06 Apr 2020 ...

Together, SEMI Foundation (SEMI) and Circuit Scribe, with the support of sponsors, have been able to provide Circuit Scribe kits to over 2,500 students.