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EC ENGR 221A · Lec 1

Physics of Semiconductor Devices I

Fall 2026 · Chang, M.F. · 4 units

Dibs does not read seat counts for graduate courses, so it cannot tell you when this one opens. Check the registrar.

Open on the registrar (opens in a new tab)
Status
Closed
Restrictions read 28 hours ago.
Enrolled
45 of 45
100% full
Dibs does not track seats for graduate courses. UCLA's Schedule of Classes limits how much Dibs may read each hour, and covering the whole catalog would mean covering none of it well, so undergraduate courses get the requests. This figure is whatever was last read on 29 August and is not being kept up to date. Check the registrar.
Waitlist
No waitlist
Seat risk
Not computed: dibs does not read seat counts for graduate courses, so the fullness half of this would be a guess on a number it is not keeping up to date.

From the registrar

Students who enroll in upper-division courses offered by the Samueli School without completing the requisites are subject to disenrollment after the second class meeting. If necessary, consult with an OASA counselor through MyUCLA Message Center.

When it meets

Mon
Tue
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7am
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1pm
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10pm

Meets: TR 4:00pm-5:50pm

Boelter Hall 9436

Predicted GPA

3.72
course average · 52 grades
A range
79%
P/NP
-
letter grade only
D/F/W
0.0%

Full grade history for EC ENGR 221A

What students say

Dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

Enrollment over time

A dot is a reading where something moved: the seat count, the status, or the waitlist. The last one is the most recent sweep, moved or not. The line holds flat between dots because that is what the readings say: it did not drift, it held and then jumped. The ticks along the bottom are the hours Dibs recorded reading this section, which is how a flat run says "checked, unchanged" rather than "nobody looked". It only keeps those from 25 August, so the ruler is shorter than the line for now. Both start when Dibs did rather than reaching back before it existed.

Unchanged over 11 days

4644
18 Aug 21:40capacity 4529 Aug 12:43
Show the readings
Recorded Enrolled Capacity Status Waitlist
29 Aug 12:43 45 45 closed -
18 Aug 21:40 45 45 closed -

How big this course usually runs

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 2122W
  • 3124W
Enrollment by term: 22W 21, 24W 31

Peak 31 · most recent 24W at 31