[2][3] Shockley's other three initial recruits were George Smoot Horsley[1] and Valdes[4] both of whom he knew from Bell Labs, and Richard Victor Jones,[1] who was then a new Berkeley graduate.
Valdes, as the most experienced of the group, was tasked with setting up crystal growing equipment.
[5] He also brought lists of equipment suppliers from his prior employer, Pacific Semiconductors.
[3] Jones also believed Shockley, who would soon become notorious for his paranoia and secrecy at the company, viewed the experienced Valdes as a competitor and suspected he would take Shockley's technologies to another company.
[6] In 1961, Valdes published a 370-page book The Physical Theory of Transistors[7] which is cited in university level textbooks.